Control Of Contrast Or Brightness (epo) Patents (Class 348/E5.119)
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Patent number: 12211427Abstract: A conversion table is generated from an average luminance value, a histogram, and a peak luminance value of an input image, and is used for conversion of the input image to generate an output image, for display at an image display. The conversion table has a feature by which, when the input gradation value is equal to the peak luminance value, the gradation value of the output image is made to be also equal to the peak luminance value, and, in at least part of a range in which the input gradation value is lower than the peak luminance value, the output gradation value is made to be smaller than the gradation value of the input image.Type: GrantFiled: July 16, 2020Date of Patent: January 28, 2025Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Toshiaki Kubo
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Patent number: 12051356Abstract: A display control system includes a display and an electronic device. The display includes a display panel, a USB hub, and a display control circuit. The USB hub receives a control signal in a first format through a USB interface. The display control circuit receives a control signal in a second format from the USB hub and controls the display panel according to the control signal in the second format. The electronic device includes an input device, a USB driver circuit, and a processor circuit. The input device generates an input signal. The USB driver circuit is electrically coupled to the USB hub of the display through the USB interface. The processor circuit generates an original control signal according to the input signal and controls the USB driver circuit to transmit the control signal in the first format through the USB interface.Type: GrantFiled: December 13, 2022Date of Patent: July 30, 2024Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yuh-Wey Lin, Chun-Hao Huang
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Patent number: 12028659Abstract: An information handling system camera detects ambient light and applies ambient light brightness to determine whether to color correct a captured image with ambient color temperature or a color temperature associated with a display. For example, a first RGB ambient light sensor detects ambient light from the camera field of view. When the ambient light is below a predetermined brightness, the camera image sensor processor (ISP) applies color temperature of a second RGB ambient light sensor directed at a display to perform color correction. For instance, with camera that mounts on a display top side, the second RGB ambient light sensor is disposed at the bottom of the camera and directed at the display.Type: GrantFiled: July 25, 2022Date of Patent: July 2, 2024Assignee: Dell Products L.P.Inventors: Chien-Chih Liao, Karthikeyan Krishnakumar, Shohrab Sheikh
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Patent number: 11854457Abstract: 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: GrantFiled: July 30, 2021Date of Patent: December 26, 2023Assignee: Google LLCInventors: Sangmoo Choi, Daniel Solomon
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Patent number: 11689775Abstract: 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: GrantFiled: January 28, 2020Date of Patent: June 27, 2023Assignee: SONY GROUP CORPORATIONInventors: Ayca Topalli, Ryan Ling
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Patent number: 11676547Abstract: 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: GrantFiled: June 29, 2018Date of Patent: June 13, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shuji Fukai, Takayuki Ikeda
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Patent number: 11627293Abstract: 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: GrantFiled: May 26, 2021Date of Patent: April 11, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Kei Miyazaki, Takao Hirakura, Takeshi Furihata
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Patent number: 11599246Abstract: 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: GrantFiled: December 9, 2021Date of Patent: March 7, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Lihua Geng, Xitong Ma
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Patent number: 11526962Abstract: 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: GrantFiled: May 20, 2020Date of Patent: December 13, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yoshinari Higaki
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Patent number: 11482161Abstract: 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: GrantFiled: December 2, 2020Date of Patent: October 25, 2022Assignee: Samsung Display Co., Ltd.Inventors: Seung Chan Lee, Yoo Min Ko, Joo Hee Jeon, Sung Jin Hong
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Patent number: 11468677Abstract: 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: GrantFiled: February 9, 2022Date of Patent: October 11, 2022Assignee: MATROID, INC.Inventors: Reza Zadeh, Dong Wang, Deepak Menghani, John Goddard, Ryan Tobin
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Patent number: 11231409Abstract: 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: GrantFiled: October 2, 2019Date of Patent: January 25, 2022Assignee: INSTRUMENTATION LABORATORY COMPANYInventors: Brian Joseph Bosy, Josef Kerimo
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Patent number: 11223792Abstract: 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: GrantFiled: December 12, 2019Date of Patent: January 11, 2022Assignee: Google LLCInventors: Sami Kalliomäki, Niklas Blum, Stefan Ekerfelt, Peter Hanspers, Magnus Jedvert
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Patent number: 10805586Abstract: 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: GrantFiled: August 5, 2015Date of Patent: October 13, 2020Assignee: SONY CORPORATIONInventors: Yoshiyuki Teraoka, Mikinori Matsuda
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Patent number: 10762611Abstract: 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: GrantFiled: August 7, 2018Date of Patent: September 1, 2020Assignee: Sensors Unlimited, Inc.Inventor: Thuc-Uyen Nguyen
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Patent number: 10346960Abstract: 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: GrantFiled: September 27, 2017Date of Patent: July 9, 2019Assignee: BOE Technology Group Co., Ltd.Inventors: Hanwen Liu, Pablo Navarrete Michelini
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Patent number: 10199013Abstract: 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: GrantFiled: September 15, 2016Date of Patent: February 5, 2019Assignee: Google LLCInventor: Steven Padgett
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Patent number: 10091422Abstract: 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: GrantFiled: August 2, 2016Date of Patent: October 2, 2018Assignee: Ricoh Company, Ltd.Inventor: Taro Kikuchi
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Patent number: 9256927Abstract: 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: GrantFiled: July 8, 2013Date of Patent: February 9, 2016Assignee: Yissum Research Development Companyof The Hebrew University of Jerusalem Ltd.Inventors: Daniel Lischinski, Michael Werman, Liad Kaufman
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Patent number: 8253849Abstract: 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: GrantFiled: May 24, 2010Date of Patent: August 28, 2012Assignee: National Chiao Tung UniversityInventors: Jen-Hui Chuang, Kuo-Hua Lo, Pang-Chan Hung
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Patent number: 8134647Abstract: 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: GrantFiled: November 9, 2007Date of Patent: March 13, 2012Assignee: Wintek CorporationInventors: Ching-Fu Hsu, Shin-Tai Lo, Ruey-Shing Weng, Jyun-Sian Li