Patents by Inventor James E. Crenshaw
James E. Crenshaw has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220180635Abstract: In image processing system comprises an input configured to receive an image signal, the image signal including a plurality of frames of image data; and a processor configured to automatically determine an image classification based on at least one frame of the plurality of frames, and dynamically generate a mapping metadata based on the image classification. The processor includes determination circuitry configured to determine a content type for the image signal; segmentation circuitry configured to segment the image data into a plurality of feature item regions, based on the content type; extraction circuitry configured to extract at least one image aspect value for respective ones of the plurality of feature item regions.Type: ApplicationFiled: April 20, 2020Publication date: June 9, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Ali Zandifar, James E. Crenshaw, Cristina Michel Vasco
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Patent number: 10944938Abstract: Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Judder metadata can be generated based on the input frames. The judder metadata includes base frame rate, judder control rate and display parameters, and can be used to control judder for different applications.Type: GrantFiled: September 29, 2015Date of Patent: March 9, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, James E. Crenshaw, Scott Daly, Samir N. Hulyalkar, Raymond Yeung
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Patent number: 10368031Abstract: Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Capture time and display time of frames can be manipulated to obtain a desired amount of judder. Frames can be interpolated to obtain a film with a higher frame rate and localized control of judder.Type: GrantFiled: February 23, 2015Date of Patent: July 30, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, Kimball Darr Thurston, III, Scott Daly, James E. Crenshaw, Alfred She
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Patent number: 10200666Abstract: Methods and systems for enhancing motion estimation are disclosed for stereoscopic video sequences. The motion vector parameters and disparity values for consecutive frames may be calculated to estimate motion in a coherent manner between two channels, such as a left channel and a right channel in stereoscopic images. Occlusion handling is also applied to improve the estimation.Type: GrantFiled: February 11, 2016Date of Patent: February 5, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, Georgios Georgiadis, James E. Crenshaw
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Publication number: 20170264861Abstract: Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Judder metadata can be generated based on the input frames. The judder metadata includes base frame rate, judder control rate and display parameters, and can be used to control judder for different applications.Type: ApplicationFiled: September 29, 2015Publication date: September 14, 2017Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Ning XU, James E. CRENSHAW, Scott DALY, Samir N. HULYALKAR, Raymond YEUNG
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Patent number: 9679366Abstract: Novel methods and systems for color grading are disclosed. The color grading process for a visual dynamic range image can be guided by information relating to the color grading of other images such as the standard dynamic range image.Type: GrantFiled: October 21, 2014Date of Patent: June 13, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, Tao Chen, James E. Crenshaw, Samir N. Hulyalkar
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Patent number: 9607364Abstract: Novel methods and systems for inverse tone mapping are disclosed. A scene can be analyzed to obtain highlight detection from bright light sources and specular reflections. An inverse tone mapping curve can be calculated based on the lower dynamic range and higher dynamic range displays. Multi-scale filtering can be applied to reduce noise or artifacts.Type: GrantFiled: November 19, 2014Date of Patent: March 28, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, Tao Chen, James E. Crenshaw, Timo Kunkel, Bongsun Lee
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Publication number: 20170054938Abstract: Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Capture time and display time of frames can be manipulated to obtain a desired amount of judder. Frames can be interpolated to obtain a film with a higher frame rate and localized control of judder.Type: ApplicationFiled: February 23, 2015Publication date: February 23, 2017Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Ning XU, Kimball Darr THURSTON, III, Scott DALY, James E. CRENSHAW, Alfred SHE
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Patent number: 9554132Abstract: Compression transforming video into a compressed representation (which typically can be delivered at a capped pixel rate compatible with conventional video systems), including by generating spatially blended pixels and temporally blended pixels (e.g., temporally and spatially blended pixels) of the video, and determining a subset of the blended pixels for inclusion in the compressed representation including by assessing quality of reconstructed video determined from candidate sets of the blended pixels. Trade-offs may be made between temporal resolution and spatial resolution of regions of reconstructed video determined by the compressed representation to optimize perceived video quality while reducing the data rate. The compressed data may be packed into frames. A reconstruction method generates video from a compressed representation using metadata indicative of at least one reconstruction parameter for spatial regions of the reconstructed video.Type: GrantFiled: May 24, 2012Date of Patent: January 24, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: James E. Crenshaw, Alfred She, Ning Xu, Limin Liu, Scott Daly, Kevin Stec, Samir Hulyalkar
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Patent number: 9554020Abstract: Video data with enhanced dynamic range (EDR) are color graded for a first and a second reference display with different dynamic range characteristics to generate a first color-graded output, a second color graded output, and associated first and second sets of metadata. The first color-graded output and the two sets of metadata are transmitted from an encoder to a decoder to be displayed on a target display which may be different than the second reference display. At the receiver, a decoder interpolates between the first and second set of metadata to generate a third set of metadata which drives the display management process for displaying the received video data onto the target display. The second set of metadata of metadata may be represented as delta metadata values from the first set of metadata values.Type: GrantFiled: November 10, 2014Date of Patent: January 24, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Kimball D. Thurston, III, James E. Crenshaw, Robin Atkins, Tao Chen, Timo Kunkel
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Publication number: 20160358319Abstract: Novel methods and systems for inverse tone mapping are disclosed. A scene can be analyzed to obtain highlight detection from bright light sources and specular reflections. An inverse tone mapping curve can be calculated based on the lower dynamic range and higher dynamic range displays. Multi-scale filtering can be applied to reduce noise or artifacts.Type: ApplicationFiled: November 19, 2014Publication date: December 8, 2016Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Ning XU, Tao CHEN, James E. CRENSHAW, Timo KUNKEL, Bongsun LEE
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Publication number: 20160261845Abstract: Methods and systems for enhancing motion estimation are disclosed for stereoscopic video sequences. The motion vector parameters and disparity values for consecutive frames may be calculated to estimate motion in a coherent manner between two channels, such as a left channel and a right channel in stereoscopic images. Occlusion handling is also applied to improve the estimation.Type: ApplicationFiled: February 11, 2016Publication date: September 8, 2016Applicant: Dolby Laboratories Licensing CorporationInventors: Ning XU, Georgios GEORGIADIS, James E. CRENSHAW
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Patent number: 9438849Abstract: Systems and methods for transmitting video frames are described. Specifically, frame rate modification techniques such as blending and/or packing processes are used to translate high frame-rate signals into low-frame rate signals, which are transmitted over limited bandwidth transmission media to a video signal receiver. Information pertaining to the blending and/or packing processes is transferred to the video signal receiver in the form of a map that is used to reconstruct the high frame-rate signals from the low-frame rate signals. The high frame-rate signals may be used by certain types of newer equipment designed to use such signals. However, legacy equipment that cannot use the high frame-rate signals may opt to use certain embodiments described herein that are designed to be backward-compatible. When backward-compatible, the video signal receiver generates suitable low frame-rate signals as well as the high frame-rate signals, thereby accommodating both legacy as well as newer equipment.Type: GrantFiled: October 15, 2013Date of Patent: September 6, 2016Assignee: Dolby Laboratories Licensing CorporationInventors: Limin Liu, Ning Xu, Alfred She, James E. Crenshaw
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Publication number: 20160253792Abstract: Novel methods and systems for color grading are disclosed. The color grading process for a visual dynamic range image can be guided by information relating to the color grading of other images such as the standard dynamic range image.Type: ApplicationFiled: October 21, 2014Publication date: September 1, 2016Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Ning XU, Tao CHEN, James E. CRENSHAW, Samir N. HULYALKAR
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Publication number: 20160248939Abstract: Video data with enhanced dynamic range are color graded for a first and a second reference display with different dynamic range characteristics to generate a first color-graded output, a second color graded output, and associated first and second sets of metadata. The first color-graded output and the two sets of metadata are transmitted from an encoder to a decoder to be displayed on a target display which may be different than the second reference display. At the receiver, a decoder interpolates between the first and second set of metadata to generate a third set of metadata which drives the display management process for displaying the received video data onto the target display. The second set of metadata of metadata may be represented as delta metadata values from the first set of metadata values.Type: ApplicationFiled: November 10, 2014Publication date: August 25, 2016Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Kimball D. THURSTON, III, James E. CRENSHAW, Robin ATKINS, Tao CHEN, Timo KUNKEL
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Publication number: 20140104492Abstract: Systems and methods for transmitting video frames are described. Specifically, frame rate modification techniques such as blending and/or packing processes are used to translate high frame-rate signals into low-frame rate signals, which are transmitted over limited bandwidth transmission media to a video signal receiver. Information pertaining to the blending and/or packing processes is transferred to the video signal receiver in the form of a map that is used to reconstruct the high frame-rate signals from the low-frame rate signals. The high frame-rate signals may be used by certain types of newer equipment designed to use such signals. However, legacy equipment that cannot use the high frame-rate signals may opt to use certain embodiments described herein that are designed to be backward-compatible. When backward-compatible, the video signal receiver generates suitable low frame-rate signals as well as the high frame-rate signals, thereby accommodating both legacy as well as newer equipment.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Limin Liu, Ning Xu, Alfred She, James E. Crenshaw
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Publication number: 20140098886Abstract: Compression transforming video into a compressed representation (which typically can be delivered at a capped pixel rate compatible with conventional video systems), including by generating spatially blended pixels and temporally blended pixels (e.g., temporally and spatially blended pixels) of the video, and determining a subset of the blended pixels for inclusion in the compressed representation including by assessing quality of reconstructed video determined from candidate sets of the blended pixels. Trade-offs may be made between temporal resolution and spatial resolution of regions of reconstructed video determined by the compressed representation to optimize perceived video quality while reducing the data rate. The compressed data may be packed into frames. A reconstruction method generates video from a compressed representation using metadata indicative of at least one reconstruction parameter for spatial regions of the reconstructed video.Type: ApplicationFiled: May 24, 2012Publication date: April 10, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: James E. Crenshaw, Alfred She, Ning Xu, Limin Liu, Scott Daly, Kevin Stec, Samir Hulyalkar
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Patent number: 8600185Abstract: Methods and systems for restoring image integrity in an image are described. The described methods and systems are particularly applied against an image after determining whether the image has undergone at least one of a color mutation, a non-color mutation, or a combination of a color mutation and a non-color mutation.Type: GrantFiled: January 30, 2012Date of Patent: December 3, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, James E. Crenshaw
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Publication number: 20130308858Abstract: Methods and systems for restoring image integrity in an image are described. The described methods and systems are particularly applied against an image after determining whether the image has undergone at least one of a color mutation, a non-color mutation, or a combination of a color mutation and a non-color mutation.Type: ApplicationFiled: January 30, 2012Publication date: November 21, 2013Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Ning Xu, James E. Crenshaw
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Patent number: 8494224Abstract: A system and method for reducing distance-based distortion in a camera image of an object, where the distanced-based distortion is due to differences in distance from the camera to different parts of the object. In one approach, the distortion is reduced by estimating distances to different parts of the object and then generating a reprojected image of the object dependent upon the estimated distances and upon a virtual viewpoint that is more distant than the camera from the object. In a further approach, the image is warped such that points in the image match corresponding points in one or more stored templates. In a still further approach, if excessive distortion is present in the image, the camera zoom is increased and a magnified image is displayed, prompting a person to move farther from the camera thereby reducing the distortion.Type: GrantFiled: March 7, 2011Date of Patent: July 23, 2013Assignee: Motorola Mobility LLCInventors: Boaz J. Super, Bruce A. Augustine, James E. Crenshaw, Evan A. Groat, Michael S. Theims