Combined Automatic Gain Control And Exposure Control (i.e., Sensitivity Control) Patents (Class 348/229.1)
  • Patent number: 11403477
    Abstract: An optical pattern is decoded in a scene. An automatic exposure feature of a camera is disabled. A first image is acquired and the optical pattern is detected in the first image. An exposure of the optical pattern in the first image is ascertained. At least one parameter of the camera is modified based on the exposure of the optical pattern. A second image is acquired using the modified parameter. The optical pattern in decoded in the second image.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: August 2, 2022
    Assignee: SCANDIT AG
    Inventors: Marco Biasini, Vitali Samurov, Iciar Martinez
  • Patent number: 11366738
    Abstract: A test device may include a performance module to determine entropy values for images, such as of a graphical user interface, to be presented on a display device of the test device. An entropy value for an image may be indicative of a distribution of data values, such as intensity or color values for pixels in the image. Patterns of entropy values over time may provide information indicative of performance of the test device. For example, a constant entropy value over time may indicate the graphical user interface is not changing. In another example, particular patterns of entry values over time may be indicative of presentation of wait indicators or other user interface elements. The entropy values may be used to determine data indicative of performance of the test device. This data may be stored locally, sent to an external device, and so forth.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 21, 2022
    Assignee: HEADSPIN, INC.
    Inventors: Brian Christian Perea, Severin Smith, Brien Colwell, Manish Lachwani
  • Patent number: 11330194
    Abstract: In a night shot mode, a photo is captured and processed based on a plurality of frames. The plurality of frames is obtained based on a plurality of parameters including an exposure duration, a light sensitivity, and a number of frames. These parameters are determined based on factors, such as whether the electronic device is in a handheld state or not, and whether the current photographing scene is a dark scene or a light source scene.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: May 10, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tao Sun, Congchao Zhu
  • Patent number: 11323632
    Abstract: An electronic device and a method of controlling the electronic device are provided. The electronic device includes a camera configured to generate a detection signal by photoelectrically converting incident light, and one or more processors configured to control operations of the camera and process the detection signal, wherein the one or more processors are further configured to generate a plurality of input images from the detection signal, determine a first parameter applied to the camera, based on brightness information of each of the plurality of input images, detect at least one feature from each of the plurality of input images, determine whether to update the first parameter, based on a result of detecting the at least one feature, and adjust the first parameter, based on a brightness of the at least one feature upon determining to update the first parameter.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: May 3, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Iegor Vdovychenko
  • Patent number: 11317032
    Abstract: Provided is an imaging device including: a photoelectric conversion unit; a charge holding portion; a charge transfer unit that transfers charges from the photoelectric conversion unit to the charge holding portion; an output unit that outputs a signal based on transferred charges; a first acquisition unit that acquires first image data based on charges generated in the photoelectric conversion unit in a first exposure time period; a second acquisition unit that acquires second image data based on charges generated in the photoelectric conversion unit in a second exposure time period that is a sum of exposure time periods for charges transferred from the photoelectric conversion unit to the charge holding portion for multiple times by the charge transfer unit and is longer than the first exposure time period; and a compression unit that reduces a gradation value of the second image data to generate a third image data.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: April 26, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuyuki Shigeta
  • Patent number: 11297250
    Abstract: An image recording method (100) and an image recording device (1) for recording a sequence of single images of a scene (3) are provided, wherein the scene (3) is illuminated using an illumination unit (4), a light intensity generated by the illumination unit (4) is characterized by an illumination variable (47), a setting of the illumination variable (47) is performed as long as a regulating reserve (19) of an optimum regulating range (39) of the exposure parameter (46) is present, and a setting of the illumination variable (47) is performed or repeated until the illumination variable (47) is within an optimum regulating range (30) of the illumination variable (47).
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: April 5, 2022
    Assignee: Schölly Fiberoptic GmbH
    Inventors: Ingo Doser, Nicole Giessler, Alexander Raiola, Sebastien Weitbruch, Andreas Hanselmann, Clemens Meier, Mateusz Cichosz, Jochen Dietrich, Massimo Kubon, Patrick Spring
  • Patent number: 11295159
    Abstract: In a method of extracting features from an image, a plurality of initial key points are estimated based on an input image. A plurality of descriptors are generated based on a downscaled image that is generated by downscaling the input image. A plurality of feature points are obtained by matching the plurality of initial key points with the plurality of descriptors, respectively.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: April 5, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Hun Sung
  • Patent number: 11290628
    Abstract: A display apparatus is provided. The display apparatus comprises a housing, a display unit, a backlight module and at least one image capturing device. The at least one image capturing device is located in the housing and is used for capturing an image of the display unit.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 29, 2022
    Assignee: DYNASCAN TECHNOLOGY CORP.
    Inventors: Tsun-I Wang, Ching-Chun Wu, Chia-Liang Yang
  • Patent number: 11290612
    Abstract: According to some embodiments, a camera captures a sequence of input images. These input images are then merged by a massively parallel processor into a merged intermediate image, which is represented in memory as floating point numbers of a greater bit depth than the bit depth of the input images, thus creating a cumulative image representing a long exposure. After finishing exposure with a desired number of input images, the merged image is tonemapped with an HDR tonemapping operator. Other embodiments are shown and discussed.
    Type: Grant
    Filed: March 17, 2019
    Date of Patent: March 29, 2022
    Inventor: Oliver Markus Haynold
  • Patent number: 11291097
    Abstract: A sensor sphere may measure light and/or other properties of an environment from a multitude of angles and/or perspectives. A rendering system may obtain measurements that the sensor sphere generates as a result of measuring light in the environment from a common position and the multitude of angles and/or perspectives. The rendering system may receive image(s) that capture the environment from a first perspective, may determine a first set of the measurements that measure the lighting from the first perspective, may determine a second set of the measurements that measure the lighting from a different second perspective, may illuminate the environment from the second perspective by adjusting the lighting of the environment according to a difference between the second set of measurements and the first set of measurements, and may render the environment from the second perspective with the adjusted lighting.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: March 29, 2022
    Assignee: Illuscio, Inc.
    Inventors: Robert Monaghan, Joseph Bogacz
  • Patent number: 11283992
    Abstract: An image capturing apparatus that makes it possible to display a live view video in which motion of an object is naturally expressed during continuous shooting. An image capturing apparatus includes an image capturing unit including an image sensor, and a control circuit configured to capture a still image for storage and a display image for display on a display device, using the image capturing unit. In still image continuous shooting by the image capturing unit, the control circuit sets a capturing timing of the still image and then sets a capturing timing of the display image in a remaining time obtained by subtracting a time required to capture the still image from a period at which the still image is captured such that at least one frame of the display image can be displayed on the display device with a predetermined delay time.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: March 22, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshiyuki Okubo
  • Patent number: 11265484
    Abstract: An example method includes capturing, by an image capture device, a first image having a plurality of pixels. Each pixel includes a plurality of channels, and the first image is captured in accordance with first exposure parameters. The method includes determining, by a controller of the image capture device, average pixel intensities for each of the plurality of channels. The method includes determining, by the controller, a weighted average of pixel intensities using the average pixel intensities. The method includes setting, by the controller, a gain that is proportional to a ratio of a desired average pixel intensity relative to the weighted average of pixel intensities. The method includes setting, by the controller, second exposure parameters for a second image based on the gain. The method includes capturing, by the image capture device, the second image in accordance with the second exposure parameters.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 1, 2022
    Assignee: Waymo LLC
    Inventors: Matthew Rinehart, Vlad Cardei
  • Patent number: 11265530
    Abstract: Stereoscopic cameras include two wide-angle lenses, such as panoramic lenses, stacked one above the other to create 3D images and maps with very wide fields of view of the environment. The cameras may include panoramic annual lenses (PALs) that take a 360 degree view of the environment. Image processing is used, on a frame-by-frame basis, to map the apparent distance to all features within the scene. The camera may be operated to produce a video or map output in which each pixel has not only red (R), green (G), and blue (B) values, but also has depth (D) value.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: March 1, 2022
    Assignee: Contrast, Inc.
    Inventors: Willie C. Kiser, Michael D. Tocci, Nora Tocci
  • Patent number: 11256013
    Abstract: Aspects of the present disclosure include systems, methods, and devices use a controllable matrix filter to selectively obscure regions of an image sensor's field of view. The controllable matrix filter is a physical component that may be placed in front of an image sensor and, in certain situations, one or more regions of the otherwise transparent matrix filter may be selectively configured to have an increased optical density such that the one or more regions become opaque thereby blocking out certain regions of the image sensor's field of view. In this way, the controllable matrix filter may be used to mask out certain regions in an image sensor's field of view that may present processing difficulties for downstream systems that utilize information from the image sensor.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 22, 2022
    Assignee: UATC, LLC
    Inventor: Daniel Gruver
  • Patent number: 11238589
    Abstract: The following provides an exemplary method. An image is generated. Scan data generated by the sensing of a subject brain is received and a sequence of volumetric-images are accessed. For at least some of the voxels in at least some of the volumetric images, a change value is determined for the voxel by comparing the current-intensity value of the voxel to the adjacent-intensity value of the comparison voxel. For at least some of the plurality volumetric images, a first-aggregate is determined using at least a mean value of change values of the volumetric image and a second-aggregate is determined using at least a median value of change values of the volumetric image. At least one, but not all, of the volumetric images is determined as invalid as a result of the aggregates.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: February 1, 2022
    Assignee: Omniscient Neurotechnology Pty Limited
    Inventors: Michael Edward Sughrue, Stephane Philippe Doyen, Peter James Nicholas
  • Patent number: 11233948
    Abstract: The disclosure provides an exposure control method, an exposure control device, an electronic device and a computer readable storage medium. The method includes: determining a target exposure for an image to be captured based on ambient light luminance; determining an exposure time for the image to be captured based on the target exposure and a preset photo-sensibility for the image to be captured; in response to determining that the exposure time for the image to be captured is greater than an upper limit, updating the exposure time for the image to be captured based on the upper limit; and performing an exposure control based on the exposure time and the photo-sensibility for the image to be captured.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 25, 2022
    Assignee: SHENZHEN HEYTAP TECHNOLOGY CORP., LTD.
    Inventor: Gong Zhang
  • Patent number: 11233949
    Abstract: A CPU performs an amount-of-exposure control process to thereby function as a first control unit that controls the exposure time of pixels to control the amount of exposure of the pixels for each of a plurality of division regions obtained by dividing a captured image and as a second control unit that controls the light transmittance of an ND filter to adjust the difference in amount of exposure between the plurality of division regions for each of which the amount of exposure is controlled by controlling the exposure time. On a touch panel display, the captured image obtained with the amount of exposure controlled by the CPU in accordance with a combination of the exposure time and the light transmittance of the ND filter is displayed.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: January 25, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuya Fujikawa, Mototada Otsuru
  • Patent number: 11218643
    Abstract: An exposure compensating method applied to a camera apparatus includes acquiring a monitoring image captured by the camera apparatus via an exposure parameter, computing an estimating exposure compensating value of the monitoring image according to a triggering threshold, analyzing continuity in pixels of the monitoring image with intensity conforming to a specific condition to acquire a weighting adjustment value of a region of interest, adjusting the estimating exposure compensating value via the weighting adjustment value to generate a final exposure compensating value, and adjusting the exposure parameter by the final exposure compensating value.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: January 4, 2022
    Assignee: VIVOTEK INC.
    Inventors: Hsiang-Sheng Wang, Shih-Hsuan Chen
  • Patent number: 11184554
    Abstract: An apparatus includes a sensor including a pixel unit in which a plurality of unit pixels each including a photoelectric conversion element is arranged in a column direction and a row direction, and a control unit configured to transmit a control signal containing a period signal for controlling driving of the sensor, wherein the control unit transmits, to the sensor, the control signal for driving a first driving mode, in which a pixel row in the pixel unit is read at a predetermined interval, and a second driving mode, in which a pixel row that is not read in the first driving mode is read at a predetermined interval, and wherein the control unit performs control in such a manner that the second driving mode is driven a plurality of times during one period for transmitting the period signal for driving the first driving mode.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 23, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuki Haraguchi
  • Patent number: 11178339
    Abstract: A method for controlling an illuminator illuminating a scene monitored by a camera comprises determining whether an object of interest is present in the scene; upon at least one object of interest being determined to be present in the scene, setting a saturation threshold to a first value; or upon no object of interest being determined to be present in the scene, setting the saturation threshold to a second value being lower than the first value. The method further comprises identifying saturated pixels in an image of the scene captured by the camera; determining a ratio between a saturated area comprising the saturated pixels and a total area of the image; and upon the ratio being above the saturation threshold, decreasing a degree of illumination from the illuminator.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 16, 2021
    Assignee: AXIS AB
    Inventor: Shota Nakata
  • Patent number: 11172138
    Abstract: An image capture apparatus capable of increasing the width by which the dynamic range is expanded by HDR combination, according to whether a moving object exists or not, while preventing occurrence of ghost artifacts or the like, caused by improper combination. An image capture section performs image capture operations with a plurality of different exposure amounts for each frame to thereby generate a plurality of captured images so as to perform HDR combination. An exposure controller sets the plurality of different exposure amounts for the image capture section. A moving object detection section detects a moving object existing in at least one of the plurality of captured images. The exposure controller adjusts the plurality of different exposure amounts according to whether or not a moving object is detected by the moving object detection section.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: November 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taisuke Nishio
  • Patent number: 11172139
    Abstract: Auto exposure metering is adapted for spherical panoramic content. Using input image data, a first metering map is generated for a selected image sensor and a second metering map is generated for an unselected image sensor. Auto exposure level values for the selected image sensor and for the unselected image sensor are respectively metered using the first metering map and the second metering map, such as by adjusting luminance weights in certain locations of the respective image sensor panoramic image capture band. Hemispherical images are processed using the auto exposure metered level values and stitched together in a panoramic format to produce a spherical panoramic image. The metering maps are generated to account for areas of greatest image data importance relative to a primary orientation direction of the spherical panoramic image. This allows for effective auto exposure metering of such areas within the resulting spherical panoramic image.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 9, 2021
    Assignee: GoPro, Inc.
    Inventors: Guillaume Matthieu Guérin, Giuseppe Moschetti, Sylvain Leroy, Yoël Taïeb
  • Patent number: 11157755
    Abstract: An image processing apparatus (12) has a processing device (122) for executing, on a first image (111w) captured by a first imaging device (11w) imaging a first imaging area and a second image (111t) captured by a second imaging device (11t) imaging a second imaging area, an image recognition processing for recognizing a target in the first image and the second image, the processing device executes the image recognition processing on a non-overlapped image part (113w) of the first image without executing it on a overlapped image part (112w) of the first image when the processing device executes the image recognition processing on the first image, the non-overlapped image part includes a non-overlapped area at which the first imaging area does not overlap with the second imaging area, the overlapped image part includes a overlapped area at which the first imaging area overlaps with the second imaging area.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 26, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Masataka Yokota, Jia Sun, Takahiro Sota
  • Patent number: 11153525
    Abstract: A method and a device for video enhancement, and an electronic device are provided, in accordance with embodiments of the present disclosure. In the method, a current brightness of a display panel of the electronic device is obtained when a video is playing in the display panel. The current brightness may be compared with a target brightness, and a comparing result is obtained. An effect of video enhancement, which configured to be applied to the video, is determined according to the comparing result. The video is processed according to a video enhancement corresponding to the effect of video enhancement. Therefore, in the process of the video enhancement for the electronic device while playing video, the video may be displayed with extremely clear images and may have an extremely clear visual effect.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: October 19, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Deliang Peng
  • Patent number: 11146772
    Abstract: An encoder includes: a correction unit configured to execute gradation correction on RAW image data from an image capture element having optical black on the basis of a gamma coefficient and an optical black value of the optical black; and an encoding unit configured to encode gradation correction RAW image data that has undergone gradation correction by the correction unit.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: October 12, 2021
    Assignee: NIKON CORPORATION
    Inventors: Ichiro Ando, Masaya Takahashi
  • Patent number: 11146739
    Abstract: Embodiments of the present disclosure relate to the field of electronics and provide a method for image shooting, an apparatus, a terminal device, and a storage medium. The method includes: shooting, via an image shooting component, a preview image and acquiring an exposure parameter of the preview image, when a terminal device is in a state of being ready for image shooting; obtaining an image shooting parameter for a present night scene via an image shooting parameter estimation model based on the preview image and the exposure parameter; performing, in response to receiving an image shooting instruction, image shoot processing based on the estimated image shooting parameter to obtain a target synthesized image.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 12, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Yan Chen
  • Patent number: 11140320
    Abstract: An image signal processor includes a shared circuit, a first circuit, and a second circuit. The shared circuit processes input image data. The first circuit provides a first algorithm for processing the input image data and is used by the shared circuit to process the input image data at a first operation mode in a first shooting environment. The second circuit provides a second algorithm for processing the input image data and is used by the shared circuit to process the input image data at a second operation mode different from the first operation mode in a second shooting environment different from the first shooting environment.
    Type: Grant
    Filed: August 24, 2019
    Date of Patent: October 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo Hyun Lee, Il Do Kim, Seong Wook Song
  • Patent number: 11122213
    Abstract: An apparatus includes an imaging device including a plurality of light receiving units each converting a light beam into a voltage pulse based on an avalanche effect, and a controller having a processor which executes instructions stored in a memory, the controller being configured to function as a generation unit configured to generate image data based on the voltage pulse, a detection unit configured to detect a focus state of an imaging optical system based on the voltage pulse, and a control unit configured to control an exposure time of the light receiving units. The control unit includes a histogram generation unit and a determination unit. The histogram generation unit generates a histogram of the plurality of light receiving units based on the voltage pulse, and the determination unit determines an exposure state of the plurality of light receiving units based on the histogram generated by the histogram generation unit.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 14, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takayuki Yasuda
  • Patent number: 11122212
    Abstract: An image recording method (2) and an image recording apparatus (1) are provided for recording a sequence of individual images of a scene (3), wherein, in a first control loop (6), an exposure parameter (8) is set in dependence on a respective brightness value (21) of an individual image, wherein the scene (3) is illuminated using an illumination device (4), wherein, in a second control loop (7), a maximum value (10) of a control range (9) of the exposure parameter (8) in the first control loop (6) is set, wherein the setting of the maximum value (10) is effected in dependence on an exposure variable (11), which indirectly stands for an expected quantity of light incident on an image sensor.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: September 14, 2021
    Assignee: Schölly Fiberoptic GmbH
    Inventor: Joachim Jauss
  • Patent number: 11113798
    Abstract: A camera device communicably connected to a server device includes an imaging unit that images an outdoor monitoring target area, a detection unit that detects an object appearing in a captured image of the imaged monitoring target area and generates a cut-out image of the object, an image correction unit that generates a sharpened image to be used for collating processing of the object in the server device by using the cut-out image of the object and an image correction model, and a communication unit that sends the cut-out image of the object and the sharpened image to the server device in association with identification information of the object.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: September 7, 2021
    Assignee: PANASONIC I-PRO SENSING SOLUTIONS CO., LTD.
    Inventor: Hiromichi Sotodate
  • Patent number: 11105658
    Abstract: The present invention discloses a computational distributed fiber-optic sensing method and system. The method includes: determining a signal source for modulating intensity of incident light, where the signal source is a binary sequence; using an optical pulse sequence obtained after modulation is performed using the signal source, as an incident light signal, and emitting the incident light signal to an optical fiber; acquiring, according to specified sampling frequency, a scattered light signal obtained through optical fiber scattering; determining, according to the incident light signal and the scattered light signal, a time-domain reconstructed image of a to-be-detected light signal by using a time domain-based differential ghost imaging protocol; and determining a sensing signal of the optical fiber according to the time-domain reconstructed image of the to-be-detected light signal.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 31, 2021
    Inventors: Dapeng Zhou, Wei Peng
  • Patent number: 11096261
    Abstract: A sensor sphere may measure light and/or other properties of an environment from a multitude of angles and/or perspectives. A rendering system may obtain measurements that the sensor sphere generates as a result of measuring light in the environment from a common position and the multitude of angles and/or perspectives. The rendering system may receive image(s) that capture the environment from a first perspective, may determine a first set of the measurements that measure the lighting from the first perspective, may determine a second set of the measurements that measure the lighting from a different second perspective, may illuminate the environment from the second perspective by adjusting the lighting of the environment according to a difference between the second set of measurements and the first set of measurements, and may render the environment from the second perspective with the adjusted lighting.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 17, 2021
    Assignee: Illuscio, Inc.
    Inventors: Robert Monaghan, Joseph Bogacz
  • Patent number: 11094043
    Abstract: Devices, systems and methods for generating high dynamic range images and video from a set of low dynamic range images and video using convolution neural networks (CNNs) are described. One exemplary method for generating high dynamic range visual media includes generating, using a first CNN to merge a first set of images having a first dynamic range, a final image having a second dynamic range that is greater than the first dynamic range. Another exemplary method for generating training data includes generating sets of static and dynamic images having a first dynamic range, generating, based on a weighted sum of the set of static images, a set of ground truth images having a second dynamic range greater than the first dynamic range, and replacing at least one of the set of dynamic images with an image from the set of static images to generate a set of training images.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 17, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Nima Khademi Kalantari, Ravi Ramamoorthi
  • Patent number: 11089191
    Abstract: An image sensor with improved reference level accuracy for event detection and event detection precision is disclosed. In one example, an image sensor includes a photoreception section, an event detection section, a retention section, a readout section, and a reset section. The photoreception section acquires an electric signal proportional to an amount of light received as a photoreception signal. The event detection section detects a change in the amount of light received as an event by finding a difference between a reference level, and a current photoreception signal level. The retention section retains a detection signal that is based upon detection of the event. The readout section reads out the detection signal as an event signal. The reset section resets the reference level to the readout of the event signal by the readout section.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: August 10, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Futa Mochizuki
  • Patent number: 11073610
    Abstract: Embodiments provide for a portable imager by capturing several radar readings related to an object in an environment over several times from several of Points of View (POV), wherein each radar reading indicates a distance to and reflectivity of the object relative to the imager; capturing several camera images of the environment over the several of times from the several POVs; determining positional shifts of the imager over the several times based on photogrammetrical differences between subsequent camera images of the several camera images; determining, based on accelerometer data, a trajectory that the imager moves in the environment over the several times; determining positions of the imager in the environment over the several times based on the positional shifts and the trajectory; combining the several radar readings based on the positions to produce a synthetic aperture radar image of the object; and outputting the synthetic aperture radar image.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 27, 2021
    Assignee: International Business Machines Corporation
    Inventors: Alberto Valdes Garcia, Divya Gopinath, Yahya Mesgarpour Tousi, Daniel Joseph Friedman, Ismael Faro Sertage
  • Patent number: 11076092
    Abstract: An image processing apparatus includes first and second line buffers, an image processing circuit configured to perform an image processing on first pixel data stored in the first line buffer and then second pixel data stored in the second line buffer, and a controller configured to control writing of the second pixel data in the second line buffer at a timing aligned with a synchronizing signal and reading of the second pixel data written in the second line buffer for the image processing by the image processing circuit at a timing of a completion of the image processing by the image processing circuit of the first pixel data stored in the first line buffer.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 27, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Ryuji Hada, Atsushi Masuda
  • Patent number: 11070741
    Abstract: The present invention provides a high dynamic range video shooting method, comprising: acquiring corresponding images by means of shooting lenses of a multi-lens panoramic camera; determining corresponding image synthesis weights of image pixel blocks according to pixel color gray scale variations, pixel color gray scale differences and pixel color gray scale offsets of the image pixel blocks of each shot image; forming a high dynamic range panoramic shot image based on the image synthesis weights of the image pixel blocks of each shot image; and splicing all the high dynamic range panoramic shot images.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 20, 2021
    Assignee: SHENZHEN KANDAO TECHNOLOGY CO. LTD
    Inventors: Dan Chen, Zhijing Shao
  • Patent number: 11047735
    Abstract: A dynamical time gain controlling light sensing device generates a detection time configuration signal according to a light intensity indication signal, and generates a set of adjustment switch signals to respectively control the plurality of gain selection switches to be turned on or off according to a ratio of a real gain time and a simulation gain time within a detection time, such that an overall gain of a resolution adjustment circuit can correspond to an substitute gain lower than a set gain within the simulation gain time and correspond to the set gain within the real gain time, thereby generating an adjusted count result signal.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: June 29, 2021
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Chih-Ning Chen, Chih-Heng Su
  • Patent number: 11039078
    Abstract: In a device for predictable exposure control of a vehicle camera, a first vehicle camera has a visual field directed to the side or to the rear, and a second vehicle camera has a visual field directed to the front. A method involves recording second image data from the outer front surroundings by the second vehicle camera, detecting a region having altered brightness within the second image data, determining a required change of an exposure value based on the second image data, to compensate for a brightening or darkening that occurs when the vehicle enters the region having altered brightness, and transmitting the changed exposure value to the first vehicle camera such that, upon entry into the region having altered brightness, the first vehicle camera records first image data based on the changed exposure value.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 15, 2021
    Assignee: Conti Ternie microelectronic GmbH
    Inventor: Guenter Anton Fendt
  • Patent number: 11012645
    Abstract: A solid-state image sensor includes pixels, each of which is provided with a light receiving portion, a charge storage portion, a gate electrode, a first trench formed in a region between the light receiving portion and the charge storage portion, a first insulating film provided in the first trench, a transmitting portion, and a light-shielding film covering the charge storage portion, the transmitting portion, and the gate electrode. In a plan view, a distance from an end of the light-shielding film through the transmitting portion to the charge storage portion in a direction from the light receiving portion toward the charge storage portion is longer than a distance from the end of the light-shielding film through the first trench to the charge storage portion.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 18, 2021
    Assignee: Tower Partners Semicoductor Co., Ltd.
    Inventor: Masafumi Tsutsui
  • Patent number: 10999544
    Abstract: An image sensor includes a pixel array that includes a first pixel group and a second pixel group, each including a plurality of image pixels to generate image data. The first pixel group includes a first phase detection pixel pair including first phase detection pixels arranged adjacent to each other in a first direction and having at least one first microlens thereon, and the second pixel group includes a second phase detection pixel pair including second phase detection pixels arranged adjacent to each other in a second direction different from the first direction and having at least one second microlens thereon. The sensitivity of the first phase detection pixels is different from the sensitivity of the second phase detection pixels.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 4, 2021
    Inventors: Tae-shick Wang, Chae-sung Kim, Sung-jin Park, Joon-hyuk Im
  • Patent number: 10991281
    Abstract: An imaging system, comprising a pixel image sensor array disposed on a substrate and comprising a plurality of pixels, a multi-stage timer coupled to said pixel image sensor array for triggering exposures of said pixels, wherein the pixels are grouped into N subsets, and the timer triggers, for each subset, a sequence of at least two exposures of different capture duration of the pixels of said subset, wherein start times of the exposure sequences of the different subsets are temporally offset, at least one ADC coupled to said pixel image sensor array, which converts said exposures of said pixels to pixel digital values, a memory coupled to said at least one ADC to store said pixel digital values, and a logic circuit coupled to said memory to determine for each pixel of the image sensor array which of the corresponding stored pixel digital values to upload to a video frame.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 27, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Gregory John Ward
  • Patent number: 10986262
    Abstract: According to an aspect of the invention, as imaging apparatus includes a first control unit configured to control exposure parameters of an imaging element, and a second control unit configured to perform processing of switching between and outputting a first image corresponding to pixel portions of a number of first pixels and a second image corresponding to pixel portions of a number of second pixels smaller than the number of first pixels among pixel portions of the imaging element. The second control unit performs focusing determination on the basis of at least one of the first image and the second image.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: April 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroyuki Furumochi, Yoshihito Tamaki, Hideyuki Hamano
  • Patent number: 10970827
    Abstract: An image processor includes: an image sensor outputting a short exposure image and a long exposure image; a sensor controller that, when brightness of the subject changes, controls first exposure sensitivity to cause the short exposure image to have first brightness and controls second exposure sensitivity to cause the long exposure image to have second brightness; a motion blending ratio calculator calculating a motion blending ratio based on a motion amount of the subject; a motion-adapted image synthesizer generating a motion-adapted image by synthesizing a corrected short exposure image and the long exposure image based on the motion blending ratio; and an HDR image synthesizer generating an HDR image by synthesizing the motion-adapted image and the short exposure image together. When the subject becomes darker, the sensor controller controls the first and second exposure sensitivities to cause the first sensor gain to be at most the second sensor gain.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: April 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomokuni Iijima, Nobutoshi Fujinami, Shigeru Furumiya
  • Patent number: 10965894
    Abstract: A system comprises an image sensor comprising an array of infrared sensors operable to capture an image of a scene, an integration timing circuit variably controlling an integration time of the infrared sensors, a readout integrated circuit (ROIC) operable to generate signals from the infrared sensors corresponding to the captured image of the scene, and an automatic gain control operable to applied a gain to the generated signals. The system further comprises a dynamic range compensation controller operable to receive image parameters corresponding to the generated signals, compare the received image parameters to target image parameters, and generate an integration timing signal for controlling the integration timing circuit.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: March 30, 2021
    Assignee: FLIR Commercial Systems, Inc.
    Inventors: Devin T. Walsh, Gary Miller, Thomas Troy Stark, Tadashi Horikiri, Marinus C. DeJong, Darren M. Haley
  • Patent number: 10939054
    Abstract: A method includes: receiving light at an image sensor of a digital camera; generating an image based on the received light; detecting an artifact in the image; determining a blocking area of the sensor based on the detecting the artifact; blocking the light at the blocking area; determining whether the artifact is present in the image after the blocking; in response to determining that the artifact is present after the blocking, determining a new blocking area and repeating the blocking and the determining using the new blocking area; and in response to determining that the artifact is not present after the blocking, saving the image in memory.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 2, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Su Liu, Inseok Hwang, Chungkuk Yoo, Eric Rozner
  • Patent number: 10931916
    Abstract: A videophone apparatus and a method for automatically adjusting a videophone visual indicator are provided. The videophone includes a camera unit with an imager. Data from the imager and imager data processed by an image signal processor may be converted into a value that can be compared to a scale correlating to a brightness condition of an area in which the imager is located, allowing the brightness condition to be determined. The visual indicators of the videophone can be set to illuminate based upon the determined brightness condition. Thus, the brightness condition of a room can be determined using components already found on the videophone, without the need for additional sensors, hardware or software that increase the cost and complexity of the videophone.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: February 23, 2021
    Inventors: Isaac Goodrich, Brent Giles, Jarret Gill, Steve Lassche, Brian Davies, Richard Shields, Jeremy Larsen
  • Patent number: 10931868
    Abstract: Methods and apparatus for instant capture of content are described. A method may include placing an image capture device in an aware state and capturing aware state data. The aware state may include enabling low power sensors or entering the image capture into an event mode. A content capture opportunity is automatically determined from the captured aware state data. The aware state data may be image information and a classifier classifies the image information. The aware state data may be position data for the image capture device and when the image capture device is in a capture position, the image capture device may instantly capture image information. An image capture device mode is automatically selected for the content capture opportunity and content is automatically captured with the selected image capture device mode.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: February 23, 2021
    Assignee: GoPro, Inc.
    Inventors: Andrew David Sonenblick, Ojas Gandhi, Naveen Chinya Krishnamurthy
  • Patent number: 10931902
    Abstract: An image sensor may include a non-rectilinear image pixel array, which may produce non-rectilinear image data. The image sensor may include a resampling circuit to convert the non-rectilinear image data into rectilinear image data that is optimized for displaying an image to a user. This image data may be corrected using defect correction circuitry, resilience filtering circuitry, and aberration correction circuitry in the image sensor, and demosaicking circuitry and color correction circuitry in an image signal processor that is coupled to the image sensor. Alternatively, the non-rectilinear image data may be sent to the image signal processor without converting it to rectilinear image data. For example, machine vision applications may use and interpret non-rectilinear image data directly.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: February 23, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Marko Mlinar
  • Patent number: 10895763
    Abstract: A light control device 10 includes a pair of electrodes 611 and 612 and a stacked structure body 613? of a plurality of light control layers 613 sandwiched by the pair of electrodes 611 and 612; and each light control layer 613 has a stacked structure of a first insulating layer 614, a first nanocarbon film 615 doped with an n-type impurity or not doped with an impurity, a second insulating layer 617, and a second nanocarbon film 616 doped with a p-type impurity or not doped with an impurity.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: January 19, 2021
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Kouichi Harada, Kyoko Izuha, Koji Kadono