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公开(公告)号：US11908112B2
公开(公告)日：2024-02-20
申请号：US18303376
申请日：2023-04-19
Applicant: Roku, Inc.
Inventor： Sheng Yuan Chiu , Kunlung Wu
CPC classification number: G06T5/009 , G06T5/40 , G06T5/50 , G06T7/0002 , H04N5/20 , G06T2200/24 , G06T2207/10016 , G06T2207/20208
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for dynamic tone mapping of video content. An example embodiment operates by identifying, by a dynamic tone mapping system executing on a media device, characteristics of a first video signal having a first dynamic range based on a frame-by-frame analysis of the first video signal. The example embodiment further operates by modifying, by the dynamic tone mapping system, a tone mapping curve based on the characteristics of the first video signal to generate a modified tone mapping curve. Subsequently, the example embodiment operates by converting, by the dynamic tone mapping system, the first video signal based on the modified tone mapping curve to generate a second video signal having a second dynamic range that is less than the first dynamic range.
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Patent Agency Ranking
公开(公告)号：US12249054B2
公开(公告)日：2025-03-11
申请号：US18411985
申请日：2024-01-12
Applicant: Roku, Inc.
Inventor： Sheng Yuan Chiu , Kunlung Wu
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for dynamic tone mapping of video content. An example embodiment operates by identifying, by a dynamic tone mapping system executing on a media device, characteristics of a first video signal having a first dynamic range based on a frame-by-frame analysis of the first video signal. The example embodiment further operates by modifying, by the dynamic tone mapping system, a tone mapping curve based on the characteristics of the first video signal to generate a modified tone mapping curve. Subsequently, the example embodiment operates by converting, by the dynamic tone mapping system, the first video signal based on the modified tone mapping curve to generate a second video signal having a second dynamic range that is less than the first dynamic range.
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公开(公告)号：US20240153052A1
公开(公告)日：2024-05-09
申请号：US18411985
申请日：2024-01-12
Applicant: Roku, Inc.
Inventor： Sheng Yuan Chiu , Kunlung Wu
CPC classification number: G06T5/92 , G06T5/40 , G06T5/50 , G06T7/0002 , H04N5/20 , G06T2200/24 , G06T2207/10016 , G06T2207/20208
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for dynamic tone mapping of video content. An example embodiment operates by identifying, by a dynamic tone mapping system executing on a media device, characteristics of a first video signal having a first dynamic range based on a frame-by-frame analysis of the first video signal. The example embodiment further operates by modifying, by the dynamic tone mapping system, a tone mapping curve based on the characteristics of the first video signal to generate a modified tone mapping curve. Subsequently, the example embodiment operates by converting, by the dynamic tone mapping system, the first video signal based on the modified tone mapping curve to generate a second video signal having a second dynamic range that is less than the first dynamic range.
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公开(公告)号：US20250142143A1
公开(公告)日：2025-05-01
申请号：US18499931
申请日：2023-11-01
Applicant: Roku, Inc.
Inventor： JUHI CHECKER , Sharada Palasamudram Ashok Kumar , Erwin Bellers , Dengzhi Zhang , Weiming Zhang , Kunlung Wu , Chih-Kai Chang , Johan Janssen , Yong Li , Hsiang Yao Shih , Kung-Ho Lee
IPC: H04N21/2343 , G06N3/0464
Abstract: Disclosed herein are system, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for enhancing a picture quality of visual content rendered for display by a media device. In an embodiment, the media device reconstructs a video frame from a video signal that is received by the media device, provides the video frame as input to a machine learning model that outputs a set of picture quality parameter values based on the video frame, receives the set of picture quality parameter values output by the machine learning model, modifies the video frame based on the set of picture quality parameter values to generate a modified video frame, and provides the modified video frame to a display device for presentation thereby.
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公开(公告)号：US20230289932A1
公开(公告)日：2023-09-14
申请号：US18303376
申请日：2023-04-19
Applicant: Roku, Inc.
Inventor： Sheng Yuan Chiu , Kunlung Wu
CPC classification number: G06T5/009 , G06T7/0002 , G06T5/50 , H04N5/20 , G06T5/40 , G06T2207/10016 , G06T2200/24 , G06T2207/20208
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for dynamic tone mapping of video content. An example embodiment operates by identifying, by a dynamic tone mapping system executing on a media device, characteristics of a first video signal having a first dynamic range based on a frame-by-frame analysis of the first video signal. The example embodiment further operates by modifying, by the dynamic tone mapping system, a tone mapping curve based on the characteristics of the first video signal to generate a modified tone mapping curve. Subsequently, the example embodiment operates by converting, by the dynamic tone mapping system, the first video signal based on the modified tone mapping curve to generate a second video signal having a second dynamic range that is less than the first dynamic range.
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公开(公告)号：US11734806B2
公开(公告)日：2023-08-22
申请号：US17534613
申请日：2021-11-24
Applicant: Roku, Inc.
Inventor： Sheng Yuan Chiu , Kunlung Wu
CPC classification number: G06T5/009 , G06T5/40 , G06T5/50 , G06T7/0002 , H04N5/20 , G06T2200/24 , G06T2207/10016 , G06T2207/20208
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for dynamic tone mapping of video content. An example embodiment operates by identifying, by a dynamic tone mapping system executing on a media device, characteristics of a first video signal having a first dynamic range based on a frame-by-frame analysis of the first video signal. The example embodiment further operates by modifying, by the dynamic tone mapping system, a tone mapping curve based on the characteristics of the first video signal to generate a modified tone mapping curve. Subsequently, the example embodiment operates by converting, by the dynamic tone mapping system, the first video signal based on the modified tone mapping curve to generate a second video signal having a second dynamic range that is less than the first dynamic range.
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