Control Of Contrast Or Brightness (epo) Patents (Class 348/E5.119)
  • Patent number: 11854457
    Abstract: A method includes: (a) receiving initial image frame data to display an image frame on a display panel, a luminance of each pixel of the display corresponding to a gray level; (b) identifying dark pixels at or below a first threshold gray level; (c) identifying pixels to be modified as a subset of the dark pixels neighbored by at least one bright pixel exceeding a second threshold gray level; (d) increasing by an incremental amount the gray level of the pixels to be modified, providing modified image frame data composed of: (i) the dark pixels that are neighbored by at least one bright pixel having gray levels that have been increased by the incremental gray level amount, and (ii) other pixels that have gray levels from the initial image frame data; and (e) displaying the image frame using the modified image frame data.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: December 26, 2023
    Assignee: Google LLC
    Inventors: Sangmoo Choi, Daniel Solomon
  • Patent number: 11689775
    Abstract: A method of selecting settings for presenting AV content comprises storing a plurality of settings for presenting AV content, storing a plurality of characteristic features corresponding to AV content, storing a plurality of values defining a strength of association between a respective stored characteristic feature and a respective stored setting, obtaining one or more characteristic features from a currently delivered AV content, determining a cumulative strength of association between respective stored settings and respective stored characteristic features corresponding to the or each characteristic feature obtained from the currently delivered AV content, and selecting the stored setting having the greatest cumulative strength of association.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: June 27, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Ayca Topalli, Ryan Ling
  • Patent number: 11676547
    Abstract: Provided is a display system with which visibility can be improved. The display system includes an imaging device, a control device, and a display device. The imaging device includes first pixels arranged in a matrix, and the display device includes second pixels arranged in a matrix. The imaging device has a function of generating first image data on the basis of the illuminance of light emitted to the first pixels. The control device has a function of forming a histogram on the basis of the first image data and dividing the histogram into two or more illuminance ranges. The control device has a function of converting the gray levels which are included in the first image data as information and correspond to the illuminance of the light emitted to the first pixels, thereby generating second image data obtained by performing dynamic range compression on the first image data.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 13, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shuji Fukai, Takayuki Ikeda
  • Patent number: 11627293
    Abstract: A method of controlling a projector includes detecting whether a human is present or absent between a projection surface and the projector, emitting a first sound when it is detected that the human is present, determining whether or not detecting that the human is present continues during a first period having a first time length, projecting, by the projector, a first projection image including a first image on the projection surface when it is determined that the detecting that the human is present continues, and projecting, by the projector, a second projection image not including the first image on the projection surface when it is determined that the detecting that the human is present does not continue.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: April 11, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kei Miyazaki, Takao Hirakura, Takeshi Furihata
  • Patent number: 11599246
    Abstract: Provided is a display device. The display device includes a first processor, a second processor, and a display screen. The first processor is configured to acquire at least two OSD images, and to form a combined image with at least two OSD images and send the combined image to the second processor. The second processor is electrically coupled to the first processor and is configured to receive the combined image, identify at least two OSD images from the combined image, acquire a first screen and acquire a second screen by superimposing at least two OSD images onto the first screen, and output the second screen to the display screen. The display screen is electrically coupled to the second processor and is configured to display the second screen.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: March 7, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lihua Geng, Xitong Ma
  • Patent number: 11526962
    Abstract: An image processing apparatus in an embodiment retains combination data showing a combination of multiple pieces of noise reduction processing for each of multiple noise levels and associating a parameter for the multiple noise levels with at least either a combination of neural networks to be applied in multiple neural networks or the number of applications of the neural networks. The apparatus also determines, based on information on a noise level obtained from a processing target image, a combination of pieces of noise reduction processing for the processing target image from the combination data. Additionally, the apparatus executes, based on data on the determined combination of pieces of noise reduction processing, the noise reduction processing using at least one of the multiple neural networks for the processing target image.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: December 13, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshinari Higaki
  • Patent number: 11482161
    Abstract: A display device including a display panel having a display area in which a plurality of pixels are arranged, and a light source unit overlapping the display panel and including at least one light source. The light source unit irradiates infrared light to a predetermined region within the display area when displaying an image on the display area to change the luminance of pixels disposed in the predetermined region.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: October 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Chan Lee, Yoo Min Ko, Joo Hee Jeon, Sung Jin Hong
  • Patent number: 11468677
    Abstract: Described herein are systems and methods that search videos and other media content to identify items, objects, faces, or other entities within the media content. Detectors identify objects within media content by, for instance, detecting a predetermined set of visual features corresponding to the objects. Detectors configured to identify an object can be trained using a machine learned model (e.g., a convolutional neural network) as applied to a set of example media content items that include the object. The systems provide user interfaces that allow users to review search results, pinpoint relevant portions of media content items where the identified objects are determined to be present, review detector performance and retrain detectors, providing search result feedback, and/or reviewing video monitoring results and analytics.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: October 11, 2022
    Assignee: MATROID, INC.
    Inventors: Reza Zadeh, Dong Wang, Deepak Menghani, John Goddard, Ryan Tobin
  • Patent number: 11231409
    Abstract: An apparatus for measuring hemolysis in a cartridge based automated blood analyzer is described. The apparatus allows hemolysis testing to be performed on a sample which is presented as a whole blood sample for other testing by the cartridge based automated blood analyzer. A disposable module is configured for optically analyzing one or more plasma analytes in a flow cell while red blood cells are acoustically separated from plasma in the flow cell.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 25, 2022
    Assignee: INSTRUMENTATION LABORATORY COMPANY
    Inventors: Brian Joseph Bosy, Josef Kerimo
  • Patent number: 11223792
    Abstract: A method enhances brightness in video frames of a video during streams. The method includes determining, by a processor, that a first video frame has low light. The method further includes applying, by the processor, a linear correction to provide a first brightness enhancement in the first video frame that modifies a first brightness of a predetermined darkest percentage of pixels to be less than a darkness threshold value or a second brightness of a predetermined lightest percentage of the pixels to be greater than a lightness threshold value. The method further includes averaging, by the processor, the first brightness enhancement of the first video frame with a set of brightness enhancements corresponding to previous video frames to generate a modified video.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: January 11, 2022
    Assignee: Google LLC
    Inventors: Sami Kalliomäki, Niklas Blum, Stefan Ekerfelt, Peter Hanspers, Magnus Jedvert
  • Patent number: 10805586
    Abstract: A projection display unit with a detection function includes a projection display section (110) and a detector (120). The projection display section (110) includes a display light source. The display light source emits light used as illumination light, and projects an image onto a projection surface with the illumination light. The detector (120) includes a detection light source that emits detection light. The detector (120) detects an object on or near the projection surface, and outputs a power-saving instruction signal to the projection display section (110) in accordance with a detection state of the object. The power-saving instruction signal instructs a transition to a power-saving mode. The projection display section (110) turns off the display light source in response to the power-saving instruction signal.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: October 13, 2020
    Assignee: SONY CORPORATION
    Inventors: Yoshiyuki Teraoka, Mikinori Matsuda
  • Patent number: 10762611
    Abstract: A method of image enhancement includes constructing an input histogram corresponding to an input image received at a focal plane array. The method includes performing histogram equalization on a first band of the input histogram starting from a zero value and ending at a division value representing a pixel bin value where a predetermined fraction of the input histogram by pixel hound is reached to produce a first portion of an equalization curve. The method includes performing histogram equalization on a second band of the input histogram starting from the division value and ending at a pixel bin value where all of the input histogram by pixel count is reached to produce a second portion of the equalization curve. The method includes applying the equalization curve to the input image to produce a corresponding enhanced image.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: September 1, 2020
    Assignee: Sensors Unlimited, Inc.
    Inventor: Thuc-Uyen Nguyen
  • Patent number: 10346960
    Abstract: The disclosure discloses an apparatus and method for correcting a flicker in a video, and a video device, the method including: determining a correction weight for correcting grayscale values of a current frame of video image according to a ratio of a variance of a histogram of mapped grayscale values of a last frame of video image to a variance of a histogram of grayscale values of the last frame of video image, and a contrast enhancement upper limit parameter input by a user, and/or a largest percentage of the number of pixels with a same grayscale among a total number of pixels in the histogram of the grayscale values of the last frame of video image, and the contrast enhancement upper limit parameter input by the user; and, determining resulting grayscale values of the current frame of video image according to the correction weight.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: July 9, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hanwen Liu, Pablo Navarrete Michelini
  • Patent number: 10199013
    Abstract: A method for digital image comparison includes, by a computer executing a single instance of an application program stored in a memory of the computer, receiving a first input from a user of the computer, identifying related portions of a first digital image and a second digital image. The method also includes receiving user interactions to view portions of the first digital image. The method also includes, responsive to the user interactions, changing a view of portions of the second digital image that are related to the first digital image.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 5, 2019
    Assignee: Google LLC
    Inventor: Steven Padgett
  • Patent number: 10091422
    Abstract: An image processing device includes an image input unit, a shake-amount measuring unit, a shake correcting unit, a dividing unit, a feature-value calculating unit, and an enhancement processing unit. The image input unit receives an input of an image in chronological order. The shake-amount measuring unit measures an amount of shake of an image. The shake correcting unit corrects shake of the image in accordance with the amount of shake measured. The dividing unit divides the image corrected into multiple areas. The feature-value calculating unit calculates a histogram indicating a feature value of an image, for each of the divided areas. The enhancement processing unit determines processing details of enhancement processing to change a form of the histogram for each of the areas in accordance with the measured amount of shake of the image, and conducts enhancement processing on the area based on the histogram calculated for each area.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 2, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Taro Kikuchi
  • Patent number: 9256927
    Abstract: A method and apparatus for enhancing a digital photographic image uses a combination of global and content-specific operations. Image data is analyzed to detect one or more content items in the image to be separately enhanced. Then a content-specific enhancement operation is performed on data representing at least one detected content item, separately from the remainder of the image data. Several such content-specific operations may be performed for different types of content item. The content-specific enhancement operation comprises manipulating data, and the manipulation applies different adjustments to different pixels in the detected content item and the determination of the adjustments is based solely on analysis of the image data. Then a different enhancement operation is performed on at least the remaining image data excluding said one or more detected content items.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: February 9, 2016
    Assignee: Yissum Research Development Companyof The Hebrew University of Jerusalem Ltd.
    Inventors: Daniel Lischinski, Michael Werman, Liad Kaufman
  • Patent number: 8253849
    Abstract: The present invention provides a lighting control module, a video camera comprising the same and a control method of the same. The video camera of the invention includes a sensing module, a light-emitting module and a control module. The sensing module receives a reflected light beam from a recording direction of the video camera, and generates an image of a scene in the recording direction. The light-emitting module emits a light toward the recording direction. Additionally, the lighting control module is connected to the light-emitting module for controlling the light-emitting module to periodically emit the light from a first brightness to a second brightness.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: August 28, 2012
    Assignee: National Chiao Tung University
    Inventors: Jen-Hui Chuang, Kuo-Hua Lo, Pang-Chan Hung
  • Patent number: 8134647
    Abstract: The invention provides an image processing method and apparatus thereof. The white component data is extracted from the input R, G, B color data which are the base components of the input image data. A maximum value is extracted from the R, G, B color data and a parameter is generated based on the white component data and the maximum value. The R, G, B color data are multiplied by the parameter to obtain a multiplication result. Subtract the white component data from the R, G, B color data to obtain a subtraction result. The multiplication result and the subtraction result are added together to generate the output R, G, B color data. The output R, G, B color data and the white component data form an output image data with higher brightness.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: March 13, 2012
    Assignee: Wintek Corporation
    Inventors: Ching-Fu Hsu, Shin-Tai Lo, Ruey-Shing Weng, Jyun-Sian Li