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1. 发明公开

EP3257245A1 NEAR VISUALLY LOSSLESS VIDEO RECOMPRESSION 审中-公开
标题翻译：近视力无损视频恢复
公开(公告)号：EP3257245A1
公开(公告)日：2017-12-20
申请号：EP16704312.4
申请日：2016-01-26
申请人： Qualcomm Incorporated
发明人： PANDA, Prasanjit , MALAYATH, Narendranath , MOORTHY, Anush, Krishna , TIWARI, Mayank
IPC分类号： H04N19/124 , H04N19/172 , H04N19/14 , H04N19/40
CPC分类号： H04N19/124 , H04N19/14 , H04N19/172 , H04N19/40 , H04N19/428 , H04N19/44 , H04N19/85
摘要： Techniques are described for performing near visually lossless video recompression. The disclosed techniques generate video frames having relatively small bitrates and relatively small file sizes while retaining approximately a same level of visually perceivable video quality as the originally recorded video frames. In general, recompression of a video frame takes an input video frame and produces a second copy of the video frame that has the same or lower bitrate. The proposed techniques address the problem of recompressing a video frame with no perceivable loss in visual quality (i.e., visually lossless recompression) compared to the original recording of the video frame. In addition, the disclosed techniques provide one-step recompression of video frames that includes a single decoding and encoding of each video frame.

2. 发明授权

EP2640074B1 System and method for adaptive frame re-compression in video processing system 有权
标题翻译：视频处理系统中自适应帧重新压缩的系统和方法
公开(公告)号：EP2640074B1
公开(公告)日：2017-10-04
申请号：EP12004503.4
申请日：2012-06-14
申请人： MediaTek Inc.
发明人： Liu, Tsu-Ming , Chang, Yung-Chang , Ju, Chi-Cheng
IPC分类号： H04N19/105 , H04N19/159 , H04N19/172 , H04N19/61 , H04N19/156 , H04N19/44 , H04N19/426
CPC分类号： H04N19/428 , H04N19/105 , H04N19/156 , H04N19/159 , H04N19/172 , H04N19/44 , H04N19/61

3. 发明公开

EP3125551A1 SYSTEM AND METHOD OF TRANSMITTING DISPLAY DATA 审中-公开
标题翻译：系统VERFAHREN ZUM SENDEN VON ANZEIGEDATEN
公开(公告)号：EP3125551A1
公开(公告)日：2017-02-01
申请号：EP16181511.3
申请日：2016-07-27
申请人： Samsung Display Co., Ltd.
发明人： COOK, Gregory W. , STOLITZKA, Dale F. , LU, Ning
IPC分类号： H04N19/426 , H04N19/503
CPC分类号： H04L65/607 , H04N19/426 , H04N19/428 , H04N19/503
摘要： A system of transmitting display data is presented. The system includes a frame encoding part configured to receive a source frame and output a compressed frame. The frame encoding part has: a difference unit configured to generate a difference frame using the source frame and an encode reference frame; an encode output unit configured to output a compressed version of either the source frame or the difference frame as a compressed frame; and a first compressed frame buffer configured to store a compressed version of the source frame as a new encode reference frame, wherein the frame encoding part further includes a frame decision unit configured to compare the image quality of frames respectively derived from the source frame and the difference frame.
摘要翻译：提出一种传输显示数据的系统。该系统包括被配置为接收源帧并输出压缩帧的帧编码部分。帧编码部具有：差分部，被配置为使用源帧和编码参考帧生成差分帧; 编码输出单元，被配置为将源帧或差帧的压缩版本输出为压缩帧; 以及第一压缩帧缓冲器，被配置为将源帧的压缩版本存储为新的编码参考帧，其中，所述帧编码部分还包括帧判定单元，被配置为将从源帧分别导出的帧的图像质量与差异框架

4. 发明公开

EP2652950A4 METHOD AND DEVICE FOR STORING A COMPRESSION RATIO INDICATION IN A PIXEL VALUE BUFFER IN TILE ENCODING 审中-公开
标题翻译：方法和设备，用于存储压缩比显示像素值缓冲区瓷砖编码
公开(公告)号：EP2652950A4
公开(公告)日：2016-07-06
申请号：EP10860879
申请日：2010-12-14
申请人： ERICSSON TELEFON AB L M
发明人： STRÖM JACOB , WENNERSTEN PER
IPC分类号： G06T9/00 , H04N19/426 , H04N19/46 , H04N19/91
CPC分类号： G06T9/005 , G06T9/00 , H04N19/428 , H04N19/46 , H04N19/91

5. 发明公开

EP2800369A4 MOVING IMAGE COMPRESSING APPARATUS, IMAGE PROCESSING APPARATUS, MOVING IMAGE COMPRESSING METHOD, IMAGE PROCESSING METHOD, AND DATA STRUCTURE OF MOVING IMAGE COMPRESSED FILE 有权转让
标题翻译：运动图像压缩装置，图像处理装置，运动图像压缩方法，图像处理和压缩的运动图像文件的数据结构
公开(公告)号：EP2800369A4
公开(公告)日：2015-08-19
申请号：EP12862302
申请日：2012-10-24
申请人： SONY COMPUTER ENTERTAINMENT INC
发明人： INADA TETSUGO , OHBA AKIO , SEGAWA HIROYUKI
IPC分类号： H04N19/105 , H04N19/50 , H04N19/102 , H04N19/119 , H04N19/132 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/174 , H04N19/196 , H04N19/31 , H04N19/33 , H04N19/423 , H04N19/426 , H04N19/503 , H04N19/587 , H04N19/59 , H04N19/593 , H04N19/96
CPC分类号： H04N19/51 , H04N19/105 , H04N19/137 , H04N19/14 , H04N19/167 , H04N19/174 , H04N19/198 , H04N19/428 , H04N19/587 , H04N19/59 , H04N19/593
摘要： A frame sequence of moving picture data is divided into a tile image sequence 250, and the color space of the tile image sequence 250 is converted to generate a YCbCr image sequence 252 (S10). Each frame is reduced to 1/2 time in the vertical and horizontal directions (S12), and a compression process is carried out to generate compression data 260 of a reference image (S14). The compression data 260 of the reference image is decoded and decompressed similarly as upon image display to restore a YCbCr image as the reference image, and a difference image sequence 262 is generated from the reference image and the original YCbCr image 252 (S16). Then, compression data 266 of a difference image is generated (S18), and compression data 268 obtained by connecting the compression data 260 of the reference image and the compression data 266 of the difference image is generated for every four frames of a tile image (S20).
摘要翻译：运动图像数据的帧序列被划分为区块图像序列250，以及平铺图像序列250的颜色空间转换，以生成YCbCr图像序列252（S10）。每个帧被减小到在垂直和水平方向上（S12）一半时间，以及压缩处理被执行，以产生压缩数据的参考图像（S14）的260。所述参考图像的压缩数据260进行解码，并在图像显示类似于解压缩以恢复YCbCr图像作为基准图像，和差图像序列262从参考图像和原始YCbCr图像252（S16）生成的。然后，在差分图像的压缩数据266产生（S18），和压缩数据268通过连接压缩数据的参考图像的260和用于平铺图像的每四个帧而被产生的差图像266的压缩数据（获得 S20）。

6. 发明公开

EP2894859A1 Memory management control operation for interlaced sequences 审中-公开
标题翻译：嵌套序列存储器管理控制操作
公开(公告)号：EP2894859A1
公开(公告)日：2015-07-15
申请号：EP14193472.9
申请日：2003-07-15
申请人： Panasonic Intellectual Property Corporation of America
发明人： Schlockermann, Martin , Schuur, Bernhard , Kadono, Shinya
IPC分类号： H04N19/423 , H04N19/127 , H04N19/16 , H04N19/172 , H04N19/573 , H04N19/58
CPC分类号： H04N19/423 , H04N19/127 , H04N19/16 , H04N19/172 , H04N19/428 , H04N19/433 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/573 , H04N19/58 , H04N19/61 , H04N19/85 , H04N19/91
摘要： A video encoder (70) for coding moving pictures comprising a buffer (16c) with a plurality of memory areas capable of storing frames composed of top fields and bottom fields, a motion estimation unit (19) operable to code, field by field, inputted pictures performing moving estimation and moving compensation by referring, field by field, to the picture data stored in a memory area, a motion compensation unit (16d), a subtractor (11), a transformation unit (13) and a quantization unit (14), a memory management unit (71) operable to manage, frame by frame, a plurality of memory areas, an inverse quantization unit (16a) and inverse discrete cosine transform unit (16b) operable to decode picture data in coded fields and store the picture data in the decoded field in any of the plurality of memory areas under the management by the memory management unit (71).

7. 发明授权

EP1443772B1 MOVING PICTURE ENCODING DEVICE AND MOVING PICTURE DECODING DEVICE 有权转让
标题翻译：设备编码MOVING FOR解码运动图像的图片与设备
公开(公告)号：EP1443772B1
公开(公告)日：2015-03-04
申请号：EP03741394.5
申请日：2003-07-15
申请人： Panasonic Intellectual Property Corporation of America
发明人： SCHLOCKERMANN, Martin , SCHUUR, Bernhard , KADONO, Shinya
IPC分类号： H04N19/00
CPC分类号： H04N19/423 , H04N19/127 , H04N19/16 , H04N19/172 , H04N19/428 , H04N19/433 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/573 , H04N19/58 , H04N19/61 , H04N19/85 , H04N19/91
摘要： A memory management control for a memory section is provided for use in a motion estimation or a compensation unit using a plurality of reference images. The plurality of reference images is stored in a memory section providing a memory area for each of the reference images. Each of the memory areas being adapted to store video data of one frame including a top field and a bottom field. The storage of video data in the memory section is controlled by a memory control section. A storage enable flag is assigned to each of the memory areas to enable the storage of image data of two successive fields in a single memory area.

8. 发明公开

EP2719177A1 INTERNAL BIT DEPTH INCREASE IN VIDEO CODING 审中-公开
标题翻译：实习医生BITTIEFENZUNAHME DER VIDEOCODIERUNG
公开(公告)号：EP2719177A1
公开(公告)日：2014-04-16
申请号：EP12727575.8
申请日：2012-06-08
申请人： Qualcomm Incorporated
发明人： CHEN, Ying , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/98 , H04N19/124 , H04N19/159 , H04N19/164 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/30 , H04N19/40 , H04N19/428 , H04N19/61 , H04N19/70
摘要： In an example aspects of this disclosure generally relate to a method of coding video data that includes determining a first bit depth for outputting video data and a second bit depth for coding the video data, wherein the first bit depth is less than the second bit depth. The method also includes determining whether the video data will be used as reference data when coding other video data. The method also includes storing, based on the determination, the video data at the first bit depth when the video data is not used as reference data, and the video data at the second bit depth when the video data is used as reference data.

9. 发明公开

EP2685717A1 VIDEO IMAGE ENCODING METHOD AND VIDEO IMAGE DECODING METHOD 审中-公开
标题翻译：方法用于解码视频编码的视频和方法
公开(公告)号：EP2685717A1
公开(公告)日：2014-01-15
申请号：EP11860461.0
申请日：2011-03-09
申请人： Kabushiki Kaisha Toshiba
发明人： SHIODERA, Taichiro , TANIZAWA, Akiyuki , YAMAKAGE, Tomoo , CHUJOH, Takeshi
IPC分类号： H04N7/32
CPC分类号： H04N19/51 , H04N19/428 , H04N19/52
摘要： According to one embodiment, disclosed is a method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.
摘要翻译：。根据一个实施例，盘游离缺失是分割输入图像信号划分成像素块，并且对分割的像素块执行帧间预测的方法。此方法包括选择从运动信息缓冲器中存储在运动中编码的区域信息来预测的运动信息，并且通过使用预测的运动信息预测编码对象块的运动信息。该方法包括：获取从运动信息项的多个另外的代表性的运动信息中，以编码的区域在雅舞蹈与第一信息，其指示选择的预测运动信息的方法，从而获得仅代表的运动信息。

10. 发明公开

EP2622863A1 CODING PREDICTION MODES IN VIDEO CODING 审中-公开
标题翻译：视频编码中的编码预测模式
公开(公告)号：EP2622863A1
公开(公告)日：2013-08-07
申请号：EP11770008.8
申请日：2011-09-30
申请人： Qualcomm Incorporated
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/428 , H04N19/13 , H04N19/159 , H04N19/194 , H04N19/196 , H04N19/463 , H04N19/61 , H04N19/96
摘要： A video encoder can maintain, by generating, storing, adjusting, altering, and/or updating, one or more variable length coding (VLC) tables that represent a mapping of prediction modes to codewords. One or more codewords representing a selected prediction mode can be communicated to the decoder for a CU of a frame. The decoder maintains one or more VLC tables that match the VLC tables maintained by the video encoder. Thus, based on the one or more codewords received from the video encoder, the video decoder can determine the prediction mode used to encode a CU.
摘要翻译：视频编码器可通过生成，存储，调整，更改和/或更新表示预测模式到码字的映射的一个或多个可变长度编码（VLC）表来维护。表示所选预测模式的一个或多个码字可以针对帧的CU传送给解码器。解码器维护与由视频编码器维护的VLC表匹配的一个或多个VLC表。因此，基于从视频编码器接收的一个或一个以上码字，视频解码器可确定用于编码CU的预测模式。

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