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1. 发明公开

EP2979487A1 EARLY PACKET LOSS DETECTION AND FEEDBACK 有权
标题翻译： RÜCKKOPPLUNG的FRÜHEPAKETVERLUSTERKENNUNG
公开(公告)号：EP2979487A1
公开(公告)日：2016-02-03
申请号：EP14728713.0
申请日：2014-03-28
申请人： VID SCALE, Inc.
发明人： LIU, Weimin , VANAM, Rahul , MA, Liangping , REZNIK, Yuriy , STERNBERG, Gregory, S. , CHEN, Wei , VEER, Dharm
IPC分类号： H04W28/04
CPC分类号： H04L1/1887 , H04L1/18 , H04L43/0847 , H04L47/14 , H04L47/54 , H04L47/746 , H04N19/105 , H04N19/107 , H04N19/164 , H04N19/172 , H04N21/6437 , H04N21/6473 , H04N21/64776 , H04W28/04
摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.
摘要翻译：视频编码设备（例如，无线发射/接收单元（WTRU））可以使用传输协议来发送具有帧序列号的编码帧。视频编码装置，视频编码装置上的应用程序和/或编码装置上的协议层可以通过接收到错误通知来检测分组丢失。可以在MAC层检测到丢包。可以使用诸如欺骗性NACK分组，欺骗性XR分组或欺骗性ACK分组之类的欺骗分组来发信号通知丢包。可以在MAC层（例如，由编码设备或无线路径上的另一设备）重传丢失的分组。可以在上行链路操作和/或下行链路操作中执行分组丢失检测，和/或可以在通过云的视频获取应用中执行。视频编码设备可以基于错误通知生成并发送第二编码帧。

2. 发明公开

EP2842338A1 METHOD AND APPARATUS FOR SMOOTH STREAM SWITCHING IN MPEG/3GPP-DASH 审中-公开
标题翻译：方法和装置在MPEG / 3GPP DASH无缝STREAM CHANGE
公开(公告)号：EP2842338A1
公开(公告)日：2015-03-04
申请号：EP13721203.1
申请日：2013-04-23
申请人： VID SCALE, Inc.
发明人： REZNIK, Yuriy , ASBUN, Eduardo , CHEN, Zhifeng , VANAM, Rahul
IPC分类号： H04N21/2343 , H04N21/434 , H04L29/06 , H04N21/845 , H04N7/26
CPC分类号： H04N21/4402 , H04L65/4084 , H04L65/602 , H04L65/80 , H04N21/234327 , H04N21/4347 , H04N21/8451
摘要： A method and apparatus for providing smooth stream switching in video and/or audio encoding and decoding may be provided. Smooth stream switching may include the generation and/or display of one or more transition frames that may be utilized between streams of media content encoded at different rates. The transition frames may be generated via crossfading and overlapping, crossfading and transcoding, post-processing techniques using filtering, post-processing techniques using re-quantization, etc. Smooth stream switching may include receiving a first data stream of media content characterized by a first signal-to-noise ratio (SNR) and a second data stream of the media content characterized by a second SNR. Transition frames may be generated using at least one of frames of the first data stream and frames of the second data stream. The transition frames may be characterized by one or more SNR values that are between the first SNR and the second SNR.

3. 发明公开

EP3939268A1 INTRA SUB-PARTITIONS IN VIDEO CODING 审中-公开
公开(公告)号：EP3939268A1
公开(公告)日：2022-01-19
申请号：EP20716347.8
申请日：2020-03-11
申请人： VID SCALE, Inc.
发明人： YANG, Hua , VANAM, Rahul , HE, Yuwen
IPC分类号： H04N19/11 , H04N19/593 , H04N19/105 , H04N19/176

4. 发明授权

EP3042503B1 VIEWING CONDITIONS' ESTIMATION FOR ADAPTIVE DELIVERY OF VISUAL INFORMATION IN A VIEWING ENVIRONMENT 有权
公开(公告)号：EP3042503B1
公开(公告)日：2018-06-27
申请号：EP14777951.6
申请日：2014-09-04
申请人： VID SCALE, Inc.
发明人： REZNIK, Yuriy , ASBUN, Eduardo , OLESEN, Robert, L. , STERNBERG, Gregory, S. , KEROFSKY, Louis , NEFF, Ralph , VANAM, Rahul
IPC分类号： H04N21/2343 , H04N21/422 , H04N21/462 , H04N21/2662 , H04N21/6587 , H04N5/44
CPC分类号： H04N21/4621 , H04N5/4403 , H04N21/2343 , H04N21/234363 , H04N21/23439 , H04N21/238 , H04N21/25841 , H04N21/2662 , H04N21/42202 , H04N21/4223 , H04N21/44209 , H04N21/44218 , H04N21/8456 , H04N2005/4444
摘要： Visual information may be delivered to streaming-capable devices in a viewing environment, such as a home environment or a commercial environment. The visual information can be adapted to user behavior and/or viewing conditions in such a way as to deliver a satisfactory user experience while conserving network resources, such as bandwidth and/or capacity. Viewing distance and/or ambient light, which may affect viewing conditions in a viewing environment, may be estimated. Bandwidth may be reduced by eliminating details that may not be perceived by the user in the estimated viewing conditions (e.g., by determining a spatial resolution (e.g. a maximum spatial resolution) perceptible under the viewing conditions and not exceeding that spatial resolution).

5. 发明公开

EP2917892A2 TEMPORAL FILTER FOR DENOISING A HIGH DYNAMIC RANGE VIDEO 审中-公开
标题翻译： ZEITLICHER FILTER ZURENTSTÖRUNGEINES VIDEOS MIT HOHEM DYNAMIKBEREICH
公开(公告)号：EP2917892A2
公开(公告)日：2015-09-16
申请号：EP13853955.6
申请日：2013-11-06
申请人： VID SCALE, Inc.
发明人： VANAM, Rahul , REZNIK, Yuriy
IPC分类号： G06T5/00
CPC分类号： H04N5/21 , G06K9/4652 , G06T5/00 , G06T5/002 , G06T7/90 , G06T2207/10016 , G06T2207/10024 , G06T2207/20012 , G06T2207/20182 , H04N9/643 , H04N9/646 , H04N19/117 , H04N19/167 , H04N19/186 , H04N19/85
摘要： Systems, methods, and instrumentalities are disclosed for denoising high dynamic range video using a temporal filter. A frame of an uncompressed video stream may be received. The frame may include a plurality of pixels. It may be determined that a chroma component of a pixel of the plurality of pixels belongs to a predefined region. The region may be predefined on the basis of one or more chroma components. The predefined region may be a CbCr space. The chroma component of the pixel may be compared with a chroma component of a co-located pixel to determine if the chroma component of the co-located pixel belongs to the predefined region. The pixel may be filtered using a denoising filter. The denoising filter may be a temporal filter. The denoising filter may be a Crawford filter. The uncompressed video stream including the filtered pixel may be encoded.
摘要翻译：公开了使用时间滤波器对高动态范围视频进行去噪的系统，方法和手段。可以接收未压缩视频流的帧。该帧可以包括多个像素。可以确定多个像素的像素的色度分量属于预定区域。可以基于一个或多个色度分量来预定义该区域。预定义的区域可以是CbCr空间。可以将像素的色度分量与同位置像素的色度分量进行比较，以确定同位置像素的色度分量是否属于预定义区域。可以使用去噪滤波器对像素进行滤波。去噪滤波器可以是时间滤波器。去噪滤波器可以是克劳福德滤波器。可以编码包括滤波像素的未压缩视频流。

6. 发明授权

EP2979487B1 EARLY PACKET LOSS DETECTION AND FEEDBACK 有权
公开(公告)号：EP2979487B1
公开(公告)日：2018-11-28
申请号：EP14728713.0
申请日：2014-03-28
申请人： VID SCALE, Inc.
发明人： LIU, Weimin , VANAM, Rahul , MA, Liangping , REZNIK, Yuriy , STERNBERG, Gregory, S. , CHEN, Wei , VEER, Dharm
IPC分类号： H04L12/863 , H04W28/04
CPC分类号： H04L1/1887 , H04L1/18 , H04L43/0847 , H04L47/14 , H04L47/54 , H04L47/746 , H04N19/105 , H04N19/107 , H04N19/164 , H04N19/172 , H04N21/6437 , H04N21/6473 , H04N21/64776 , H04W28/04
摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.

7. 发明公开

EP2920965A1 PERCEPTUAL PREPROCESSING FILTER FOR VIEWING-CONDITIONS-AWARE VIDEO CODING 审中-公开
标题翻译：佩雷泽维尔VORVERARBEITUNGSFILTER ZUR ANZEIGEBEDINGUNGSBEWUSSTEN VIDEOCODIERUNG
公开(公告)号：EP2920965A1
公开(公告)日：2015-09-23
申请号：EP13801929.4
申请日：2013-11-15
申请人： VID SCALE, Inc.
发明人： VANAM, Rahul , REZNIK, Yuriy , KEROFSKY, Louis
IPC分类号： H04N19/182 , H04N19/136 , H04N19/117 , H04N19/164
CPC分类号： H04N19/80 , H04N19/117 , H04N19/136 , H04N19/164 , H04N19/182
摘要： A perceptual filter may be implemented to filter one or more spatial frequencies from a video signal that are below a contrast sensitivity limit of a viewer of the video signal. The perceptual filter may be configured to adapt one or more perceptual filter parameters on a pixel-basis based on, for example, content, viewing distance, display density, contrast ratio, display luminance, background luminance, and/or age of the viewer. Estimates of DC, amplitude, and contrast sensitivity of a video frame may be performed. A spatial cutoff frequency of the perceptual filter may be mapped to a contrast sensitivity. The perceptual filter may be used as a preprocessing step for a video encoder so as to lower an encoded bitrate. The oblique effect phenomena of the human visual system may be incorporated into the perceptual filter.
摘要翻译：可以实现感知滤波器以从低于视频信号的观看者的对比度灵敏度极限的视频信号滤波一个或多个空间频率。感知滤波器可以被配置为基于例如内容，观看距离，显示密度，对比度，显示亮度，背景亮度和/或观看者的年龄在像素的基础上调整一个或多个感知滤波器参数。可以执行视频帧的DC，幅度和对比度灵敏度的估计。感知滤波器的空间截止频率可以被映射到对比敏感度。感知滤波器可以用作视频编码器的预处理步骤，以便降低编码比特率。人类视觉系统的倾斜效应现象可以并入感知过滤器中。

8. 发明公开

EP2817968A2 VIDEO CODING USING PACKET LOSS DETECTION 审中-公开
标题翻译：带包装丢失检测视频编码
公开(公告)号：EP2817968A2
公开(公告)日：2014-12-31
申请号：EP13709604.6
申请日：2013-02-15
申请人： VID SCALE, Inc.
发明人： VANAM, Rahul , LIU, Weimin , RAPAPORT, Avi , MA, Liangping , ASBUN, Eduardo , CHEN, Zhifeng , REZNIK, Yuriy , ZEIRA, Ariela
IPC分类号： H04N21/2343
CPC分类号： H04N19/154 , H04L43/0829 , H04L65/604 , H04L65/607 , H04N19/103 , H04N19/172 , H04N19/46 , H04N19/65 , H04N21/2343 , H04N21/6131 , H04N21/6181 , H04N21/6379 , H04N21/64723
摘要： Using wireless packet loss data in the encoding of video data. In one embodiment, the method includes receiving wireless packet loss data at a wireless transmit receive unit (WTRU); generating video packet loss data from the wireless packet loss data, and providing the video packet loss data to a video encoder application running on the WTRU for use in encoding video data. The video encoder may perform an error propagation reduction process in response to the video packet loss data. The error propagation reduction process includes one or more of generating an instantaneous Decode Refresh frame or generating an Intra Refresh frame. Some embodiments may be characterized as using a reference picture selection method, or a reference set of pictures selection method.

9. 发明公开

EP3909240A1 IMPROVED INTRA PLANAR PREDICTION USING MERGE MODE MOTION VECTOR CANDIDATES 审中-公开
公开(公告)号：EP3909240A1
公开(公告)日：2021-11-17
申请号：EP20704143.5
申请日：2020-01-10
申请人： Vid Scale, Inc.
发明人： VANAM, Rahul , HE, Yuwen
IPC分类号： H04N19/105 , H04N19/11 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/593

10. 发明公开

EP3704858A1 METHODS FOR SIMPLIFYING ADAPTIVE LOOP FILTER IN VIDEO CODING 审中-公开
公开(公告)号：EP3704858A1
公开(公告)日：2020-09-09
申请号：EP18807774.7
申请日：2018-10-31
申请人： Vid Scale, Inc.
发明人： VANAM, Rahul , HE, Yuwen , YE, Yan
IPC分类号： H04N19/82 , H04N19/117 , H04N19/14 , H04N19/187

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