With Means For Providing High Band And Low Band Luminance Signals Patents (Class 348/235)
  • Patent number: 11908109
    Abstract: Various improvements to video processing are described, including highlight recovery by dividing an image into different frequency ranges and compressing the lower range before recombining, tone mapping to avoid hue shifts, dynamic tone mapping based on detected scene changes in the video, dynamic tone mapping using the shape of a tone mapping curve that is changed based on the histogram of each video frame, HDR Luminance Channel Repair of artifacts, changing the shape of the tone mapping curve based on a histogram of each video frame, upscaling Chroma by using Luma channel information motion interpolation using Neural Networks, motion compensated noise reduction using Neural Networks to filter random noise and film grain, grain/noise agnostic upscaling using Neural Networks, and hiding video frames by strategically dropping or repeating them in unnoticeable places to prevent a visible video stutter based on scene characteristics to accommodate clock variations.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 20, 2024
    Assignee: madVR Holdings LLC
    Inventor: Mathias Rauen
  • Patent number: 11277572
    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Further, the present invention provides a method and device for image processing using a dual image sensor and, more particularly, provides a method and device for image processing using image sensors having different amounts of light.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 15, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jeonghwan Cho
  • Patent number: 11178340
    Abstract: A control device includes: a hardware processor; and a memory, wherein the hardware processor is configured to: control an image sensor configured to generate an image signal by performing imaging sequentially according to predetermined frames; detect a frequency of vocal cord vibration of a subject based on a voice signal; set a pulse width and a light emission cycle for when a light source emits light, based on the frequency and a preset duty cycle; control the light source to emit the pulse light using the pulse width and the light emission cycle in one field period or one frame period of the image sensor in synchronization with the frequency; calculate, based on the light emission cycle or the frequency, a gain amount by which the image signal is to be multiplied; and multiply the image signal by the gain amount.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 16, 2021
    Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.
    Inventors: Narumi Sato, Ryohei Kagawa
  • Patent number: 10694118
    Abstract: In a signal processing apparatus including a mixing region detecting unit, and an image capturing condition updating unit, the mixing region detecting unit detects a region where a non-visible light image signal is to be mixed with a visible light image signal, the non-visible light image signal and the visible light image signal being generated by repeatedly performing imaging on a basis of a predetermined image capturing condition. The image capturing condition updating unit newly generates an image capturing condition in the non-visible light image signal on a basis of the non-visible light image signal in the detected region to update the predetermined image capturing condition. A region including fog, or the like is detected, a visible light image signal is mixed with a non-visible light image signal in the region, and image capturing conditions of the non-visible light image signal in the region are updated.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 23, 2020
    Assignee: SONY CORPORATION
    Inventors: Koji Kurata, Naoki Okamoto
  • Patent number: 9860521
    Abstract: An image processing system is provided, the image processing system according to an exemplary embodiment of the present disclosure being configured to generate an accurate depth image even in a low light level by obtaining RGB images and/or IR images.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 2, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jun Seo Lee
  • Patent number: 9781406
    Abstract: An apparatus for generating depth image is provided, the apparatus according to an exemplary embodiment of the present disclosure being configured to perform an accurate stereo matching even in a low light level by obtaining RGB images and/or IR images, and using the obtained RGB images and/or IR images to extraction of a depth image.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: October 3, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jun Seo Lee
  • Patent number: 9699362
    Abstract: A filter device for a camera which has an optical path, comprises at least one filter unit which has an actuation device and at least one first filter element and one second filter element. The actuation device has a holding device which can be magnetically coupled to the first and to the second filter element and which can be displaced linearly to bring the filter elements selectively into the optical path of the camera or to move them out of the optical path of the camera.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: July 4, 2017
    Assignee: ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG
    Inventor: Timo Sperber
  • Patent number: 9690970
    Abstract: A device and method for biometric feature imaging are disclosed.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: June 27, 2017
    Assignee: EYESMART TECHNOLOGY LTD.
    Inventor: Xiaopeng Wang
  • Patent number: 9667876
    Abstract: An image capturing apparatus comprises an image capture unit, a setting unit configured to set a sensitivity serving as a setting for shooting using the image capture unit, and a selection unit configured to be able to select one of a first selection method capable of selecting a sensitivity from out of a plurality of sensitivities at a first numerical value increment, and a second selection method capable of selecting a sensitivity from out of a plurality of sensitivities at a second numerical value increment, as a method for selecting the sensitivity, the second numerical value being smaller than the first numerical value. Options selectable with the first selection method include a predetermined sensitivity that does not correspond to the first numerical value increment and is selectable with the second selection method.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: May 30, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naomi Mori
  • Patent number: 9041829
    Abstract: A camera array, an imaging device and/or a method for capturing image that employ a plurality of imagers fabricated on a substrate is provided. Each imager includes a plurality of pixels. The plurality of imagers include a first imager having a first imaging characteristics and a second imager having a second imaging characteristics. The images generated by the plurality of imagers are processed to obtain an enhanced image compared to images captured by the imagers. Each imager may be associated with an optical element fabricated using a wafer level optics (WLO) technology.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: May 26, 2015
    Assignee: Pelican Imaging Corporation
    Inventors: Kartik Venkataraman, Amandeep S. Jabbi, Robert H. Mullis
  • Publication number: 20150124124
    Abstract: There is provided an image processing circuit including a sub frame signal generation unit configured to receive n pieces of image information of n images which are obtained by photographing the same scene under n (n is a natural number equal to or greater than 2) exposure conditions and the n exposure conditions at the time of the photographing as input. When a display video of one scene is constituted by a maximum of n sub frames, the sub frame signal generation unit generates video signals of the maximum of n sub frames by controlling a light emission time of light emission elements for each sub frame according to the n exposure conditions.
    Type: Application
    Filed: September 18, 2014
    Publication date: May 7, 2015
    Inventor: Koichi Maeyama
  • Patent number: 9007483
    Abstract: An image synthesis device includes: a first pixel selection unit which selects, from a first filter area around a pixel of interest on a first image, a first pixel having a value within a first allowable range including a value of a pixel of interest; a second pixel selection unit which sets a second filter area around a reference pixel located on a second image having a longer exposure time than the first image in the same position as the pixel of interest, and selects, from the second filter area, a second pixel having a value within a second allowable range including the value of the pixel of interest; and a synthesis unit which sets a synthetic value, acquired by synthesizing the values of the first and the second pixel, as the value of a pixel on the synthetic image in the same position as the pixel of interest.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: April 14, 2015
    Assignee: Fujitsu Limited
    Inventor: Yuushi Toyoda
  • Patent number: 8994870
    Abstract: An imaging apparatus disclosed in the present application includes a lens optical system including a lens and a stop; an imaging; and an array-form optical element located between the lens optical system and the imaging device and including optical components extending in a row direction in a plane vertical to an optical axis of the lens optical system, the optical components being arrayed in a column direction in the plane. The imaging device includes pixel groups, each of which includes first pixels arrayed in the row direction and second pixels arrayed in the row direction at positions adjacent, in the column direction, to the first pixels. The pixel groups are arrayed in the column direction. Border positions between the optical components are respectively offset in the column direction with respect to corresponding border positions between the pixel groups.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 31, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Norihiro Imamura
  • Patent number: 8982243
    Abstract: An image processing device includes a dynamic range compressor that changes a characteristic of a tone curve depending on a position on input image data so as to compress a dynamic range of the image data, and a coordinate converter that converts coordinates of the image data of which the dynamic range has been compressed.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Limited
    Inventor: Ryosuke Kasahara
  • Patent number: 8957990
    Abstract: An apparatus and method for compensating for back light of an image are provided. The method includes receiving an image at a preset time interval, upon receiving the image, dividing pixels constituting the received image according to preset ranges, determining whether the received image is a back light image by confirming a distribution degree of pixels of each of the divided ranges, adjusting the brightness of the back light image when the received image is the back light image, and storing the received image and the back light compensated image.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 17, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ja-Won Seo, Hae-Sun Lee, Jong-Hyub Lee, Sung-Jun Yim
  • Publication number: 20140320695
    Abstract: An image-capturing device includes an image-capturing unit 30 including a first image-capturing element 41, a second image-capturing element 51, a third image-capturing element 61, and a fourth image-capturing element 71, and includes an image processing unit 11, wherein a sensitivity of the fourth image-capturing element 71 is less than sensitivities of the first image-capturing element 41 to the third image-capturing element 61, and the image processing unit 11 generates high sensitivity image data on the basis of outputs from the first image-capturing element 41 to the third image-capturing element 61, and generates low sensitivity image data on the basis of an output from the fourth image-capturing element 71, and further, the image processing unit 11 generates a combined image using high sensitivity image data corresponding to a low illumination image area in the low illumination image area obtained from the low sensitivity image data or the high sensitivity image data, and using low sensitivity image da
    Type: Application
    Filed: December 7, 2012
    Publication date: October 30, 2014
    Inventors: Ken Ozawa, Masanori Iwasaki, Hideaki Mogi
  • Patent number: 8860836
    Abstract: A device for compressing an image for an image sensor, including a module for analog decorrelation of an image for providing low-frequency coefficients and high-frequency coefficients from the image, an analog-digital coefficient converter, and a module for a differentiated analog amplification of the low-frequency coefficients and of the high-frequency coefficients, provided by the analog decorrelation module to provide modified coefficients to the converter.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: October 14, 2014
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Tristan Thabuis, Patrick Villard
  • Patent number: 8848077
    Abstract: An imaging apparatus includes a solid-state imaging device that has a plurality of pairs of a first photoelectric conversion element and a second photoelectric conversion element, which have different spectral sensitivity characteristics, respectively. A wavelength range where the first photoelectric conversion element of each pair mainly has a spectral sensitivity and a wavelength range where the second photoelectric conversion element of the pair mainly has a spectral sensitivity fall within wavelength ranges of specific colors of visible light respectively. The plurality of pairs include a plurality of types of pairs having different specific colors. A half-width in a spectral sensitivity characteristic of the second photoelectric conversion element of each pair is wider than a half width in a spectral sensitivity characteristic of the first photoelectric conversion element of the pair.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Takahashi, Noriko Kawamura, Tomoyuki Kawai, Seiji Tanaka, Tetsuro Ashida, Takehiro Kouguchi, Hisashi Endo, Tomoki Inoue
  • Patent number: 8810675
    Abstract: An image processing apparatus is provided which offers higher versatility than conventional image processing apparatuses. When an input signal to a spatial filtering block is a monochrome signal that contains Y component only, a selector selects its input terminal and a selector selects its input terminal. Then, a low-pass filter output signal of a programmable spatial filter is inputted to a spatial filter, and a low-pass filter output signal of the spatial filer is inputted to a spatial filter. That is, the programmable spatial filter and the spatial filters are connected in series (in cascade), and the cascade-connected three spatial filters perform filtering operation. In this example, low-pass filters with 5×5 taps are connected in cascade in three stages, which enables low-pass filtering with 13×13 taps.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 19, 2014
    Assignee: MegaChips Corporation
    Inventor: Gen Sasaki
  • Patent number: 8768053
    Abstract: An image processing apparatus and method for generating high-sensitive, high-brightness color images are disclosed. A second image having a wider band and higher-sensitivity than those of a first image which includes color information may be acquired, wherein the first and second images are images captured from a scene. A first transformed image having high brightness may be generated by performing binning on the first image, and edge information being a high-frequency component may be extracted from the second image. A high-brightness, high-sensitive color image may be generated using the first transformed image and the edge information.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: July 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-hee Choe, Jae-hyun Kwon, Seong-deok Lee
  • Patent number: 8723978
    Abstract: Provided are an image fusion apparatus and method for combining multi-exposure images. The image fusion apparatus and method may generate a sharp high-resolution high dynamic image while fully representing detail in an over-exposed region and an under-exposed region of the image without contrast degradation.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hyun Kwon, Hyun-Hwa Oh, Won-Hee Choe, Sung-Chan Park, Seong-Deok Lee
  • Patent number: 8681187
    Abstract: An image processing apparatus includes a calculation to calculate a compression gain that is applied to a low-frequency component of an input image and an amplification gain that is applied to a high-frequency component of the input image, a generation to generate a display image in which a pixel value of a pixel of the input image is corrected based on the compression gain and the amplification gain calculated by the calculation unit, and a display to display the display image.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: March 25, 2014
    Assignee: Fujitsu Limited
    Inventors: Motonobu Mihara, Masayoshi Shimizu
  • Patent number: 8665348
    Abstract: A captured image and capture conditions of an input device when the captured image was captured are input, and viewing conditions when a reproduced image, which is reproduced by an output device, is viewed are input. A first perceived image is generated from the captured image by a forward conversion of local adaptation processing that conforms to information, which indicates viewing angle, distance to a subject and image resolution of the captured image, included in the capture conditions. A second perceived image is generated by converting a dynamic range of the first perceived image to a dynamic range of the output device. A reproduced image, which is supplied to the output device, is generated from the second perceived image by an inverse conversion of the local adaptation processing that conforms to information, which relates to viewing distance and size of the reproduced image, included in the viewing conditions.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: March 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuo Fukuda
  • Patent number: 8643710
    Abstract: An image pickup apparatus includes first and second irradiation units that emit first light and second light, respectively, an image pickup unit that outputs, as pixel information, an electrical signal after photoelectric conversion from a pixel arbitrarily designated as a read target among pixels, a setting unit that arbitrarily sets a pixel as the read target and a read order in the image pickup unit, a control unit that controls irradiation processes in the first and second irradiation units and changes the pixel as the read target and the read order according to a type of an irradiation unit that emits light, a reading unit that reads the pixel information by causing the pixel information to be output from the pixel set as the read target, in accordance with the read order, and an image processing unit that generates an image from the pixel information read by the reading unit.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: February 4, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Wataru Ono, Hidenori Hashimoto
  • Publication number: 20130321667
    Abstract: An apparatus and method such that when a signal intensity evaluation value is greater than or equal to a predetermined value, a signal intensity amplification factor of each color component is changed in accordance with the signal intensity evaluation value of the color component, and when the signal intensity evaluation value is less than the predetermined value, at least a signal intensity amplification factor of a color component, of which signal intensity evaluation value of the color component is the least, is set at a predetermined value not dependent upon the signal intensity evaluation value of the color component.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Junichi Saito
  • Patent number: 8508625
    Abstract: A processing circuit which generates a plurality of signals of different frequency bands from a signal and which suppresses noise by synthesizing the signals of different frequency bands and a generation circuit which generates a signal in which an aliasing signal is suppressed are provided. A signal of the highest frequency band among the signals of different frequency bands to be synthesized with one another by the processing circuit includes the signal which is generated by the generation circuit and in which generation of aliasing signals is suppressed.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinya Hirai
  • Patent number: 8477218
    Abstract: The invention relates to matrix image sensors, and it relates more particularly to a method for correcting the fixed spatial noise of the matrix. The signal (Sij,n) obtained from each pixel (Pij) during a large number of successive images is collected; for each pixel, an approximate value (Mij) of an average of the signal obtained from the pixel during this large number of images is determined; the signal obtained from each pixel is corrected by adding to it the difference between a reference average value (M0) and the approximate average value. The approximate average is obtained by determining high and low limit values taken by the signal obtained from the pixel during the large number of images, and by calculating a median between these high and low limit values.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 2, 2013
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Gilles Chammings
  • Patent number: 8471928
    Abstract: An apparatus and method for generating a high ISO image are provided. To this end, an image may be divided into a first image having a low frequency component and a second image having a high frequency component. A brightness of the first image may be changed, and details of the second image may be restored. The first image having the changed brightness and the second image having the restored details may be synthesized.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Jin Yoo, Won-Hee Choe, Seong-Deok Lee, Kang-Eui Lee
  • Patent number: 8456541
    Abstract: A plurality of image signals having different exposure levels is acquired; low-frequency components are extracted from each of the image signals to generate a plurality of low-frequency image signals; and the plurality of low-frequency image signals are combined to generate a combined low-frequency image signal. A first image signal is extracted from the plurality of image signals; and high-frequency components are extracted from the first image signal to generate a high-frequency image signal. Then, a combined image signal is generated by combining the combined low-frequency image signal and the high-frequency image signal.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: June 4, 2013
    Assignee: Olympus Corporation
    Inventor: Masao Sambongi
  • Patent number: 8456576
    Abstract: A signal processing apparatus includes a lower-level region data detecting section detecting, in luminance data of an input video signal, luminance data corresponding to a value in a set lower-level region, and a data converting section converting a value of the luminance data corresponding to the lower-level region to a set conversion value.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 4, 2013
    Assignee: Sony Corporation
    Inventors: Tsutomu Ichinose, Takashi Sato
  • Patent number: 8368779
    Abstract: An image processing apparatus includes: a gradation correction unit configured to perform gradation correction upon a subject image to be processed to generate a corrected image, the gradation correction including processing for lowering contrast in the subject image; a gradation information acquisition unit configured to acquire gradation information indicating relative balance of brightness in each portion of the subject image; and an adjustment unit configured to adjust brightness of the corrected image on a pixel basis based on the gradation information.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 5, 2013
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshitsugu Manabe
  • Patent number: 8339498
    Abstract: Provided are a method and apparatus for displaying luminance. The method includes displaying luminance information corresponding to horizontal and vertical axes of an image. Accordingly, the total luminance of the image and luminance information on positions and regions of the image can be detected intuitively.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyuk-soo Son
  • Patent number: 8319853
    Abstract: An image processing apparatus includes an extraction unit configured to extract a plurality of luminance low frequency components different in frequency band from a luminance component of image data, and a color adjustment unit configured to execute color adjustment of the image data using the image data or the luminance component of the image data and the plurality of luminance low frequency components, wherein, when an effect of color adjustment based on the luminance low frequency component having a relatively low frequency is larger than an effect of color adjustment based on the luminance low frequency component having a relatively high frequency among the plurality of luminance low frequency components, the color adjustment unit reduces the effect of color adjustment based on the luminance low frequency component having the relatively low frequency.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuo Fukuda
  • Patent number: 8314863
    Abstract: An image processing device includes: a blurring correction processing unit configured to perform blurring correction processing on output signals of an imaging device having an RGBW array which includes RGB pixels and white (W) pixels, and generate blurring-corrected signals corresponding to each pixels; and a data conversion unit configured to convert the RGBW array into an RGB array; wherein the data conversion unit executes processing of generating blurring-corrected RGB signals (Rd, Gd, Bd) which are blurring-corrected signals corresponding to RGB that have been estimated from blurring-corrected signals generated by the blurring correction processing unit, and applying the blurring-corrected RGB signals (Rd, Gd, Bd) to determine RGB signals values configuring an RGB array.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: November 20, 2012
    Assignee: Sony Corporation
    Inventor: Masayuki Tachi
  • Patent number: 8294791
    Abstract: An image correction apparatus reduces an input image, for each area, at a reduction ratio corresponding to the area, generates a reduced luminance image, and extracts a low-frequency component image from the reduced luminance image. The image correction apparatus enlarges the extracted low-frequency component image, for each area, at an enlargement ratio corresponding to the area, generates correction data according to a size of the input image, and corrects the input image according to the correction data.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: October 23, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kiyoshi Iwabuchi
  • Patent number: 8218021
    Abstract: An apparatus includes an image capture unit which includes an image sensor in which pixels for photoelectrically converting an object image are two-dimensionally arrayed in correspondence with color filters of a plurality of colors, and generates an image signal, a reducing unit which reduces the image signal output from the image capture unit to generate a reduced image, an image processing unit which performs development processing for the reduced image to obtain a first developed image containing luminance components and color difference components and performs development for the image signal output from the image capture unit to obtain a second developed image containing luminance and color difference components, an enlargement unit which enlarges the first developed image to the same size as that of the second developed image, and a composition unit which performs composition of the second developed image and an enlarged image.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: July 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kota Terayama
  • Patent number: 8189073
    Abstract: A tone adjustment method for a digital image and an electronic apparatus using the same are presented. A digital image is loaded. A detail image layer and a primary image layer are generated according to the digital image. A tone mapping procedure is performed on the primary image layer, for generating a tone mapping layer. A detail gain lookup table is loaded and then a corresponding gain is looked up according to each pixel value in the primary image layer, for generating a detail gain adjustment layer. A detail gain control procedure is performed and then a detail gain adjustment is performed on the detail gain adjustment layer and the detail image layer, for generating a gain correction layer. The gain correction layer and the tone mapping layer are combined, and then a combined layer is output, thereby completing the tone adjustment for the digital image.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: May 29, 2012
    Assignee: Altek Corporation
    Inventors: Yu-Chen Huang, Ming-Jiun Liaw
  • Patent number: 8150197
    Abstract: An apparatus and method of obtaining a high-resolution image are provided. The apparatus of obtaining a high-resolution image may generate a high frequency component of an output image using a high frequency component of an input image, synthesize the input image and the generated high frequency component of the output image, and thereby may obtain a sharpness-enhanced high-resolution image.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu Young Hwang, Ho Young Lee, Du-Sik Park
  • Patent number: 8134610
    Abstract: An image capturing apparatus includes an optical system that forms an image of light and a gradation processing section that converts gradation of a captured image captured through the optical system in accordance with a spatial frequency transfer characteristic of the optical system. The image capturing apparatus may further include a light receiving section that receives light from a subject through the optical system, and the gradation processing section may convert gradation of a captured image obtained by light received by the light receiving section in accordance with a spatial frequency transfer characteristic at the position at which the light receiving section is provided.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: March 13, 2012
    Assignee: Fujifilm Corporation
    Inventor: Shuji Ono
  • Patent number: 8130264
    Abstract: A high tone image is saved in a versatile image file format to enhance usability. There are provided an imaging unit that images an original image having a predetermined dynamic range, which is a ratio between minimum luminance and maximum luminance; a synthesized image generating part that generates a synthesized image data that is higher in tone than a tone width of the original image by synthesizing a plurality of original images imaged under different imaging conditions at the same observation position; a display unit that displays the images imaged by the imaging unit; a tone conversion part that converts the synthesized image data generated by the synthesized image generating part to low tone image data having a tone width capable of being displayed on the display unit; and a tone data saving part that generates a high tone data-attached display file including a high tone image region for saving the synthesized image data serving as a basis as an image file for saving the low tone image data.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: March 6, 2012
    Assignee: Keyence Corporation
    Inventors: Masahiro Inomata, Kang Woobum
  • Patent number: 8106965
    Abstract: An image having the image quality desired by a photographer is provided by minimizing overexposure or underexposure, making the dynamic range wide, and specifying an optimum brightness level for a main subject.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: January 31, 2012
    Assignee: Olumpus Corporation
    Inventor: Saori Shimizu
  • Patent number: 8089540
    Abstract: A method for reading data from a holographic storage medium is described. An image sensor is used for acquiring data. The holographic storage medium, which contains binary information in the form of at least one two-dimensional data page, is illuminated by means of a laser beam bundle and the retrieved data page is read out by means of the image sensor, for which purpose the latter is provided with an activatable area having a multiplicity of pixels. It achieves the object of configuring a method of this type in such a way that the read-out of the information is accelerated with a number of pixels remaining the same. For this purpose, the activatable area of the image sensor is subdivided into different regions which are in each case assigned to a region having a specific intensity of the light beam. In this case, a longer exposure time and/or a higher sensitivity are/is determined for regions assigned to regions having lower intensity than for regions assigned to regions having a higher intensity.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: January 3, 2012
    Assignee: Thomson Licensing
    Inventors: Christof Ballweg, Joachim Knittel
  • Patent number: 8045022
    Abstract: An imaging apparatus includes an imaging device, a first luminance signal generating unit and a correcting unit. The imaging device includes at least three types of color detecting photoelectric converting elements and a luminance detecting photoelectric converting element. The first luminance signal generating unit generates a first luminance signal corresponding to the color detecting photoelectric converting element from a color signal obtained from each of the at least three types of color detecting photoelectric converting elements. The correcting unit corrects, based on the color signal, at least a second luminance signal corresponding to the luminance detecting photoelectric converting element which is obtained from the luminance detecting photoelectric converting element so as to generate a luminance signal which constitutes image data corresponding to each of the photoelectric converting elements.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: October 25, 2011
    Assignee: Fujifilm Corporation
    Inventor: Tetsu Wada
  • Patent number: 8040396
    Abstract: There is described an image capturing apparatus, which makes it possible to conduct a high-accurate range finding operation irrespective of the position of the subject. The apparatus, comprises: a plurality of imaging elements; a plurality of luminance signal generating sections, each of which generates a luminance signal by mixing the plural wavelength signals with each other at a predetermined mixture ratio; a plurality of mixture ratio controlling sections, which respectively correspond to the plurality of imaging elements, and each of which changes a mixture ratio, at which the plural wavelength signals are mixed with each other, based on a positional relationship between a corresponding one of the plurality of imaging elements and a subject; and a range detecting section to detect a distance to the subject, based on a correlation between luminance signals, each of which is the luminance signal generated by each of the luminance signal generating sections.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 18, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventor: Jun Takayama
  • Publication number: 20110228138
    Abstract: A focus-adjustment signal generating apparatus includes a filter to extract a high-frequency component at a specific frequency or higher from a luminance signal of an input video signal, a comparator to compare an absolute value of the high-frequency component with a specific reference value, to output a first detection signal when the absolute value is equal to or larger than the reference value whereas a second detection signal when the absolute value is smaller than the reference value, an extender to extend an output period of the first detection signal according to a period indicated by a period-length setting signal, to output an extended first detection signal, and a selector to select a first chrominance difference signal indicating a specific color in response to the extended first detection signal whereas a second chrominance difference signal indicating an achromatic color in response to the second detection signal, the first or the second chrominance difference signal being output as a focus-adjus
    Type: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: Victor Company of Japan, Ltd., a corporation of Japan
    Inventor: Hidehiro KATOH
  • Patent number: 8013911
    Abstract: A wide dynamic range image sensor method combines the response of high-gain sensing cells and low-gain sensing cells with better linearity than the prior art. A search is made in successive central regions within the response curve of the high-gain and low-gain cells to find a highest slope linear fit. This highest slope and the corresponding offset are used in mixing the high-gain and low-gain responses to achieve a wide dynamic range.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: September 6, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Emi Arai, Yuji Itoh
  • Patent number: 7990443
    Abstract: An image sensing apparatus includes: an image sensing device for sensing light representing a subject image; a first component extractor for extracting a first component having a predetermined frequency out of a photographic image obtained by the image sensing device; a second component extractor for extracting a second component having a frequency higher than the frequency of the first component out of the photographic image; a compressor for compressing a dynamic range of the first component extracted by the first component extractor with a predetermined compression ratio; an image generator for generating an image based on a compressed first component obtained by compressing the dynamic range of the first component by the compressor, and the second component extracted by the second component extractor; and a compression correction coefficient calculator for calculating a compression correction coefficient used in compressing the first component, using the second component extracted by the second component
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: August 2, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Tetsuya Katagiri, Koichi Kamon
  • Publication number: 20110096201
    Abstract: An apparatus and method for generating a high ISO image are provided. To this end, an image may be divided into a first image having a low frequency component and a second image having a high frequency component. A brightness of the first image may be changed, and details of the second image may be restored. The first image having the changed brightness and the second image having the restored details may be synthesized.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 28, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Jin Yoo, Won-Hee Choe, Seong-Deok Lee, Kang-Eui Lee
  • Patent number: 7893974
    Abstract: An information processing apparatus for correcting chromatic aberration of video data, includes a white saturation pixel detecting unit for detecting a white saturation pixel having white saturation using a G signal of the video data composed of an RGB signal, a spatial signal processing unit for performing a spatial signal process on the RGB signal across a plurality of lines, a color signal generating unit for generating a color signal from the RGB signal processed by the spatial signal processing unit, a white saturation distribution information generating unit for generating white saturation distribution information representing a distribution of the white saturation pixels detected by the white saturation pixel detecting unit, and a chromatic aberration correcting unit for correcting a chromatic aberration of the color signal generated by the color signal generating unit, using the white saturation distribution information generated by the white saturation distribution information generating unit.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventor: Takuya Chiba
  • Patent number: 7868925
    Abstract: An image data generator 100 according to the present invention includes a shooting section 103, a color separating section 104, R, G and B imaging sensor sections 105, 106 and 107, an image shot storage section 108, an image shot writing section 109, a spatial frequency calculating section 186, a color channel range distribution calculating section 187, a color channel range distribution information writing section 188, a memory section 110, a shooting information reading section 111, a super-resolution section 240, an output section 114 and a line recognition signal generating section 185. This image data generator can get high-spatial-resolution, high-temporal-resolution image data with the same camera configuration as a conventional color camera and without decreasing the optical efficiency.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Hideto Motomura, Takeo Azuma, Kunio Nobori, Taro Imagawa