Patents by Inventor Sean Thomas McCarthy
Sean Thomas McCarthy 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: 20230073388Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: ApplicationFiled: September 21, 2022Publication date: March 9, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Patent number: 11582472Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: GrantFiled: February 8, 2022Date of Patent: February 14, 2023Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Patent number: 11533474Abstract: Methods, systems, and bitstream syntax are described for canvas size, single layer or multi-layer, scalable decoding, with support for regions of interest (ROI), using a decoder supporting reference picture resampling. Offset parameters for a region of interest in a current picture and offset parameters for an ROI in a reference picture are taken into consideration when computing scaling factors to apply reference picture resampling. Syntax elements for supporting ROI regions under reference picture resampling are also presented.Type: GrantFiled: March 11, 2020Date of Patent: December 20, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Taoran Lu, Fangjun Pu, Peng Yin, Sean Thomas McCarthy, Tao Chen
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Patent number: 11523127Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: GrantFiled: March 11, 2020Date of Patent: December 6, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Publication number: 20220385935Abstract: Methods and systems for canvas size scalability across the same or different bitstream layers of a video coded bitstream are described. Offset parameters for a conformance window, a reference region of interest (ROI) in a reference layer, and a current ROI in a current layer are received. The width and height of a current ROI and a reference ROI are computed based on the offset parameters and they are used to generate a width and height scaling factor to be used by a reference picture resampling unit to generate an output picture based on the current ROI and the reference ROI.Type: ApplicationFiled: August 5, 2020Publication date: December 1, 2022Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Taoran LU, Fangjun PU, Peng YIN, Sean Thomas MCCARTHY, Tao CHEN
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Publication number: 20220286667Abstract: Methods, systems, and bitstream syntax are described for canvas size, single layer or multi-layer, sealable decoding, with support for regions of interest (ROI). using a decoder supporting reference picture resampling. Offset parameters for a region of interest in a current picture and offset parameters for an ROI in a reference picture are taken into consideration when computing scaling factors to apply reference picture resampling Syntax elements for supporting ROI regions under reference picture resampling arc also presented.Type: ApplicationFiled: March 11, 2020Publication date: September 8, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Taoran LU, Fangjun PU, Peng YIN, Sean Thomas McCarthy, Tao CHEN
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Publication number: 20220279210Abstract: A quantization parameter signalling mechanism for both SDR and HDR content in video coding is described using two approaches. The first approach is to send the user-defined Qpc table directly in high level syntax. This leads to more flexible and efficient QP control for future codec development and video content coding. The second approach is to signal luma and chroma QPs independently. This approach eliminates the need for Qpc tables and removes the dependency of chroma quantization parameter on luma QP.Type: ApplicationFiled: May 27, 2020Publication date: September 1, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Fangjun PU, Toaran LU, Peng Yin, Sean Thomas MCCARTHY
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Patent number: 11395009Abstract: Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for image reshaping using rate distortion optimization, wherein reshaping allows the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. Syntax methods for signaling reshaping parameters are also presented.Type: GrantFiled: February 13, 2019Date of Patent: July 19, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Peng Yin, Fangjun Pu, Taoran Lu, Tao Chen, Walter J. Husak, Sean Thomas McCarthy
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Publication number: 20220224946Abstract: Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for image reshaping using rate distortion optimization, wherein reshaping allows the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. Syntax methods for signaling reshaping parameters are also presented.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Peng Yin, Fangjun Pu, Taoran Lu, Tao Chen, Walter J. Husak, Sean Thomas McCarthy
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Publication number: 20220166991Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: ApplicationFiled: February 8, 2022Publication date: May 26, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng YIN, Taoran LU, Fangjun PU, Sean Thomas MCCARTHY, Walter J. HUSAK, Tao CHEN, Guan-Ming SU
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Patent number: 11323728Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: GrantFiled: March 25, 2021Date of Patent: May 3, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Patent number: 11277623Abstract: To support lossless mode at the block level when in-loop reshaping (LMCS) is enabled, the following changes are proposed to the existing LMCS pipeline. In intra mode, encode lossless blocks in the original domain, thus bypassing inverse mapping after reconstruction in the decoder. In inter mode, encode lossless blocks in the original domain, thus bypassing both forward mapping after motion compensation and inverse mapping after reconstruction in the decoder. In both modes, disable any LMCS-related color scaling.Type: GrantFiled: September 1, 2020Date of Patent: March 15, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy
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Publication number: 20220038723Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: ApplicationFiled: March 11, 2020Publication date: February 3, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Publication number: 20210211688Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: ApplicationFiled: March 25, 2021Publication date: July 8, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Publication number: 20210211738Abstract: Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for image reshaping using rate distortion optimization, wherein reshaping allows the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. Syntax methods for signaling reshaping parameters are also presented.Type: ApplicationFiled: February 13, 2019Publication date: July 8, 2021Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Peng Yin, Fangjun Pu, Taoran Lu, Tao Chen, Walter J. Husak, Sean Thomas McCarthy
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Patent number: 10999585Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: GrantFiled: June 15, 2020Date of Patent: May 4, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su
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Patent number: 10977779Abstract: A coded video sequence is received in a bitstream with a set of content scan adaptive metadata. It is ascertained if the set of content scan adaptive metadata is received. The set of content scan adaptive metadata includes: a maximum content light level parameter; a maximum frame average light level parameter. The maximum content light level parameter and maximum frame average light level parameter are both dependent on a scan type of the frames of the coded video sequence, the scan type being at least one of a progressive frame type, complimentary field pair type, macroblock-adaptive frame-field frame type, and individual field picture type.Type: GrantFiled: January 8, 2019Date of Patent: April 13, 2021Assignee: Dolby Laboratories Licensing CorporationInventor: Sean Thomas McCarthy
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Publication number: 20210084307Abstract: To support lossless mode at the block level when in-loop reshaping (LMCS) is enabled, the following changes are proposed to the existing LMCS pipeline. In intra mode, encode lossless blocks in the original domain, thus bypassing inverse mapping after reconstruction in the decoder. In inter mode, encode lossless blocks in the original domain, thus bypassing both forward mapping after motion compensation and inverse mapping after reconstruction in the decoder. In both modes, disable any LMCS-related color scaling.Type: ApplicationFiled: September 1, 2020Publication date: March 18, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy
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Publication number: 20210049747Abstract: A coded video sequence is received in a bitstream with a set of content scan adaptive metadata. It is ascertained if the set of content scan adaptive metadata is received. The set of content scan adaptive metadata includes: a maximum content light level parameter; a maximum frame average light level parameter. The maximum content light level parameter and maximum frame average light level parameter are both dependent on a scan type of the frames of the coded video sequence, the scan type being at least one of a progressive frame type, complimentary field pair type, macroblock-adaptive frame-field frame type, and individual field picture type.Type: ApplicationFiled: January 8, 2019Publication date: February 18, 2021Applicant: Dolby Laboratories Licensing CorporationInventor: Sean Thomas McCarthy
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Publication number: 20200382802Abstract: Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.Type: ApplicationFiled: June 15, 2020Publication date: December 3, 2020Applicant: Dolby Laboratories Licensing CorporationInventors: Robin Atkins, Peng Yin, Taoran Lu, Fangjun Pu, Sean Thomas McCarthy, Walter J. Husak, Tao Chen, Guan-Ming Su