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1. 发明授权

US09025673B2 Temporal quality metric for video coding 有权
标题翻译：视频编码的时间质量度量
公开(公告)号：US09025673B2
公开(公告)日：2015-05-05
申请号：US11450692
申请日：2006-06-08
申请人： Kai-Chieh Yang , Khaled Helmi El-Maleh , Vijay Mahadevan
发明人： Kai-Chieh Yang , Khaled Helmi El-Maleh , Vijay Mahadevan
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N17/00 , H04N19/172 , H04N19/61 , H04N19/132 , H04N19/146 , H04N19/587 , H04N5/14
CPC分类号： H04N17/004 , H04N5/144 , H04N5/147 , H04N19/132 , H04N19/146 , H04N19/172 , H04N19/587 , H04N19/61
摘要： The disclosure is directed to techniques for evaluating temporal quality of encoded video. Instead of estimating jerkiness based solely on frame rate or motion activity, the number of consecutive dropped frames forms a basic estimation unit. Several human visual system factors, such as sensitivity to temporal quality fluctuation and motion activity, have been taken into account to make the predicted jerkiness more consistent with the actual human visual response. The temporal quality metric can be used to estimate human perceived discomfort that is introduced by temporal discontinuity under various combinations of video shots, motion activity and local quality fluctuations. The techniques can be applied in two modes: (1) bitstream or (2) pixel mode. The quality metric can be used to evaluate temporal quality, or to control encoding or decoding characteristics to enhance temporal quality.
摘要翻译：本公开涉及用于评估编码视频的时间质量的技术。不是仅基于帧速率或运动活动来估计抖动，而是连续丢帧的数量形成基本估计单元。已经考虑了几种人类视觉系统因素，例如对时间质量波动和运动活动的敏感度，以使预测的惊厥性与实际的人类视觉反应更一致。时间质量度量可用于估计在视频镜头，运动活动和局部质量波动的各种组合下由时间不连续性引入的人感觉到的不适。这些技术可以以两种模式应用：（1）比特流或（2）像素模式。质量度量可用于评估时间质量，或控制编码或解码特性以增强时间质量。

2. 发明申请

US20070237227A1 Temporal quality metric for video coding 有权
标题翻译：视频编码的时间质量度量
公开(公告)号：US20070237227A1
公开(公告)日：2007-10-11
申请号：US11450692
申请日：2006-06-08
申请人： Kai-Chieh Yang , Khaled Helmi El-Maleh , Vijay Mahadevan
发明人： Kai-Chieh Yang , Khaled Helmi El-Maleh , Vijay Mahadevan
IPC分类号： H04N7/12
CPC分类号： H04N17/004 , H04N5/144 , H04N5/147 , H04N19/132 , H04N19/146 , H04N19/172 , H04N19/587 , H04N19/61
摘要： The disclosure is directed to techniques for evaluating temporal quality of encoded video. Instead of estimating jerkiness based solely on frame rate or motion activity, the number of consecutive dropped frames forms a basic estimation unit. Several human visual system factors, such as sensitivity to temporal quality fluctuation and motion activity, have been taken into account to make the predicted jerkiness more consistent with the actual human visual response. The temporal quality metric can be used to estimate human perceived discomfort that is introduced by temporal discontinuity under various combinations of video shots, motion activity and local quality fluctuations. The techniques can be applied in two modes: (1) bitstream or (2) pixel mode. The quality metric can be used to evaluate temporal quality, or to control encoding or decoding characteristics to enhance temporal quality.
摘要翻译：本公开涉及用于评估编码视频的时间质量的技术。不是仅基于帧速率或运动活动来估计抖动，而是连续丢帧的数量形成基本估计单元。已经考虑了几种人类视觉系统因素，例如对时间质量波动和运动活动的敏感度，以使预测的惊厥性与实际的人类视觉反应更一致。时间质量度量可用于估计在视频镜头，运动活动和局部质量波动的各种组合下由时间不连续性引入的人感觉到的不适。这些技术可以以两种模式应用：（1）比特流或（2）像素模式。质量度量可用于评估时间质量，或控制编码或解码特性以增强时间质量。

3. 发明授权

US08315466B2 Decoder-side region of interest video processing 有权
标题翻译：解码器侧感兴趣区域视频处理
公开(公告)号：US08315466B2
公开(公告)日：2012-11-20
申请号：US11615470
申请日：2006-12-22
申请人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
发明人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
IPC分类号： G06K9/36
CPC分类号： H04N21/4621 , H04N19/117 , H04N19/126 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/70 , H04N19/895 , H04N21/4728
摘要： The disclosure is directed to decoder-side region-of-interest (ROI) video processing. A video decoder determines whether ROI assistance information is available. If not, the decoder defaults to decoder-side ROI processing. The decoder-side ROI processing may estimate the reliability of ROI extraction in the bitstream domain. If ROI reliability is favorable, the decoder applies bitstream domain ROI extraction. If ROI reliability is unfavorable, the decoder applies pixel domain ROI extraction. The decoder may apply different ROI extraction processes for intra-coded (I) and inter-coded (P or B) data. The decoder may use color-based ROI generation for intra-coded data, and coded block pattern (CBP)-based ROI generation for inter-coded data. ROI refinement may involve shape-based refinement for intra-coded data, and motion- and color-based refinement for inter-coded data.
摘要翻译：本公开涉及解码器侧感兴趣区域（ROI）视频处理。视频解码器确定ROI辅助信息是否可用。如果不是，则解码器默认为解码器侧ROI处理。解码器侧ROI处理可以估计比特流域中的ROI提取的可靠性。如果ROI可靠性较好，则解码器应用比特流域ROI提取。如果ROI可靠性不利，则解码器应用像素域ROI提取。解码器可以对帧内编码（I）和帧间编码（P或B）数据应用不同的ROI提取处理。解码器可以使用用于帧内编码数据的基于颜色的ROI生成，以及用于帧间编码数据的基于编码块模式（CBP）的ROI生成。 ROI细化可能涉及帧内编码数据的基于形状的细化，以及帧间编码数据的基于运动和颜色的细化。

4. 发明申请

US20070242748A1 SELECTIVE VIDEO FRAME RATE UPCONVERSION 有权
标题翻译：选择性视频帧速率上变换
公开(公告)号：US20070242748A1
公开(公告)日：2007-10-18
申请号：US11468041
申请日：2006-08-29
申请人： Vijay Mahadevan , Brijesh Pillai , Khaled Helmi El-Maleh , Fang Shi , Vijayalakshmi R. Raveendran
发明人： Vijay Mahadevan , Brijesh Pillai , Khaled Helmi El-Maleh , Fang Shi , Vijayalakshmi R. Raveendran
IPC分类号： H04N11/02
CPC分类号： H04N19/44 , H04N7/0127 , H04N7/0137 , H04N19/587 , H04N19/85
摘要： This disclosure is directed to techniques for selective video frame rate upconversion (FRUC) in a video decoder. A video decoder selectively enables or disables FRUC based on one or more adaptive criteria. The adaptive criteria may be selected to indicate whether FRUC is likely to introduce spatial artifacts. Adaptive criteria may include a motion activity threshold, a mode decision threshold, or both. The criteria are adaptive, rather than fixed. When the criteria indicate that a frame includes excessive motion or new content, the decoder disables FRUC.
摘要翻译：本公开涉及视频解码器中用于选择性视频帧速率上变频（FRUC）的技术。视频解码器基于一个或多个自适应标准选择性地启用或禁用FRUC。可以选择适应性标准来指示FRUC是否可能引入空间伪像。自适应标准可以包括运动活动阈值，模式判定阈值或两者。标准是适应性的，而不是固定的。当标准表示帧包含过多运动或新内容时，解码器禁用FRUC。

5. 发明申请

US20120213409A1 DECODER-SIDE REGION OF INTEREST VIDEO PROCESSING 有权
标题翻译：解码器视频处理领域
公开(公告)号：US20120213409A1
公开(公告)日：2012-08-23
申请号：US13458387
申请日：2012-04-27
申请人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
发明人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
IPC分类号： G06K9/62
CPC分类号： H04N21/4621 , H04N19/117 , H04N19/126 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/70 , H04N19/895 , H04N21/4728
摘要： The disclosure is directed to decoder-side region-of-interest (ROI) video processing. A video decoder determines whether ROI assistance information is available. If not, the decoder defaults to decoder-side ROI processing. The decoder-side ROI processing may estimate the reliability of ROI extraction in the bitstream domain. If ROI reliability is favorable, the decoder applies bitstream domain ROI extraction. If ROI reliability is unfavorable, the decoder applies pixel domain ROI extraction. The decoder may apply different ROI extraction processes for intra-coded (I) and inter-coded (P or B) data. The decoder may use color-based ROI generation for intra-coded data, and coded block pattern (CBP)-based ROI generation for inter-coded data. ROI refinement may involve shape-based refinement for intra-coded data, and motion- and color-based refinement for inter-coded data.
摘要翻译：本公开涉及解码器侧感兴趣区域（ROI）视频处理。视频解码器确定ROI辅助信息是否可用。如果不是，则解码器默认为解码器侧ROI处理。解码器侧ROI处理可以估计比特流域中的ROI提取的可靠性。如果ROI可靠性较好，则解码器应用比特流域ROI提取。如果ROI可靠性不利，则解码器应用像素域ROI提取。解码器可以对帧内编码（I）和帧间编码（P或B）数据应用不同的ROI提取处理。解码器可以使用用于帧内编码数据的基于颜色的ROI生成，以及用于帧间编码数据的基于编码块模式（CBP）的ROI生成。 ROI细化可能涉及帧内编码数据的基于形状的细化，以及帧间编码数据的基于运动和颜色的细化。

6. 发明授权

US08744203B2 Decoder-side region of interest video processing 有权
标题翻译：解码器侧感兴趣区域视频处理
公开(公告)号：US08744203B2
公开(公告)日：2014-06-03
申请号：US13458387
申请日：2012-04-27
申请人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
发明人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
IPC分类号： G06K9/00
CPC分类号： H04N21/4621 , H04N19/117 , H04N19/126 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/70 , H04N19/895 , H04N21/4728
摘要： The disclosure is directed to decoder-side region-of-interest (ROI) video processing. A video decoder determines whether ROI assistance information is available. If not, the decoder defaults to decoder-side ROI processing. The decoder-side ROI processing may estimate the reliability of ROI extraction in the bitstream domain. If ROI reliability is favorable, the decoder applies bitstream domain ROI extraction. If ROI reliability is unfavorable, the decoder applies pixel domain ROI extraction. The decoder may apply different ROI extraction processes for intra-coded (I) and inter-coded (P or B) data. The decoder may use color-based ROI generation for intra-coded data, and coded block pattern (CBP)-based ROI generation for inter-coded data. ROI refinement may involve shape-based refinement for intra-coded data, and motion- and color-based refinement for inter-coded data.
摘要翻译：本公开涉及解码器侧感兴趣区域（ROI）视频处理。视频解码器确定ROI辅助信息是否可用。如果不是，则解码器默认为解码器侧ROI处理。解码器侧ROI处理可以估计比特流域中的ROI提取的可靠性。如果ROI可靠性较好，则解码器应用比特流域ROI提取。如果ROI可靠性不利，则解码器应用像素域ROI提取。解码器可以对帧内编码（I）和帧间编码（P或B）数据应用不同的ROI提取处理。解码器可以使用用于帧内编码数据的基于颜色的ROI生成，以及用于帧间编码数据的基于编码块模式（CBP）的ROI生成。 ROI细化可能涉及帧内编码数据的基于形状的细化，以及帧间编码数据的基于运动和颜色的细化。

7. 发明授权

US08582660B2 Selective video frame rate upconversion 有权
标题翻译：选择性视频帧速率上变频
公开(公告)号：US08582660B2
公开(公告)日：2013-11-12
申请号：US11468041
申请日：2006-08-29
申请人： Vijay Mahadevan , Brijesh Pillai , Khaled Helmi El-Maleh , Fang Shi , Vijayalakshmi R. Raveendran
发明人： Vijay Mahadevan , Brijesh Pillai , Khaled Helmi El-Maleh , Fang Shi , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12
CPC分类号： H04N19/44 , H04N7/0127 , H04N7/0137 , H04N19/587 , H04N19/85
摘要： This disclosure is directed to techniques for selective video frame rate upconversion (FRUC) in a video decoder. A video decoder selectively enables or disables FRUC based on one or more adaptive criteria. The adaptive criteria may be selected to indicate whether FRUC is likely to introduce spatial artifacts. Adaptive criteria may include a motion activity threshold, a mode decision threshold, or both. The criteria are adaptive, rather than fixed. When the criteria indicate that a frame includes excessive motion or new content, the decoder disables FRUC.
摘要翻译：本公开涉及视频解码器中用于选择性视频帧速率上变频（FRUC）的技术。视频解码器基于一个或多个自适应标准选择性地启用或禁用FRUC。可以选择适应性标准来指示FRUC是否可能引入空间伪像。自适应标准可以包括运动活动阈值，模式判定阈值或两者。标准是适应性的，而不是固定的。当标准表示帧包含过多运动或新内容时，解码器禁用FRUC。

8. 发明申请

US20080152245A1 DECODER-SIDE REGION OF INTEREST VIDEO PROCESSING 有权
标题翻译：解码器视频处理领域
公开(公告)号：US20080152245A1
公开(公告)日：2008-06-26
申请号：US11615470
申请日：2006-12-22
申请人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
发明人： Khaled Helmi El-Maleh , Vijay Mahadevan , Haohong Wang
IPC分类号： H04N11/20
CPC分类号： H04N21/4621 , H04N19/117 , H04N19/126 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/70 , H04N19/895 , H04N21/4728
摘要： The disclosure is directed to decoder-side region-of-interest (ROI) video processing. A video decoder determines whether ROI assistance information is available. If not, the decoder defaults to decoder-side ROI processing. The decoder-side ROI processing may estimate the reliability of ROI extraction in the bitstream domain. If ROI reliability is favorable, the decoder applies bitstream domain ROI extraction. If ROI reliability is unfavorable, the decoder applies pixel domain ROI extraction. The decoder may apply different ROI extraction processes for intra-coded (I) and inter-coded (P or B) data. The decoder may use color-based ROI generation for intra-coded data, and coded block pattern (CBP)-based ROI generation for inter-coded data. ROI refinement may involve shape-based refinement for intra-coded data, and motion- and color-based refinement for inter-coded data.
摘要翻译：本公开涉及解码器侧感兴趣区域（ROI）视频处理。视频解码器确定ROI辅助信息是否可用。如果不是，则解码器默认为解码器侧ROI处理。解码器侧ROI处理可以估计比特流域中的ROI提取的可靠性。如果ROI可靠性较好，则解码器应用比特流域ROI提取。如果ROI可靠性不利，则解码器应用像素域ROI提取。解码器可以对帧内编码（I）和帧间编码（P或B）数据应用不同的ROI提取处理。解码器可以使用用于帧内编码数据的基于颜色的ROI生成，以及用于帧间编码数据的基于编码块模式（CBP）的ROI生成。 ROI细化可能涉及帧内编码数据的基于形状的细化，以及帧间编码数据的基于运动和颜色的细化。

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