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1. 发明申请

US20020122484A1 Video data compression apparatus and method of same 有权
标题翻译：视频数据压缩装置及其方法
公开(公告)号：US20020122484A1
公开(公告)日：2002-09-05
申请号：US10045576
申请日：2001-03-20
申请人： SONY CORPORATION
发明人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
IPC分类号： H04N007/12
CPC分类号： H04N19/198 , H04N19/114 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/142 , H04N19/146 , H04N19/149 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/194 , H04N19/196 , H04N19/61
摘要： A video data compression apparatus with which compressed video data of suitable amounts of data can be produced and in addition the time required for processing is short. An encoder control unit performs a preprocessing for compression and coding and, at the same time, produces a flatness and an intra AC as parameters indicating the difficulty of the pattern of pictures to be compressed to I pictures. A motion detector calculates a predictive error amount (ME residual) of the motion prediction. An FIFO memory delays each picture of the input video data. A host computer approximates a real difficulty data Dj indicating the difficulty of the pattern of each picture by the ME residual, flatness, and intra AC and further calculates the target amount of data Tj of the compressed video data from the approximated real difficulty data Dj. The encoder performs the compression and coding so that the amount of data of the compressed video data becomes substantially the target amount of data Tj.
摘要翻译：可以产生适当数据量的压缩视频数据的视频数据压缩装置，另外处理所需的时间短。编码器控制单元执行压缩和编码的预处理，并且同时产生平坦度和内部AC作为指示要压缩到I图像的图像的图案的难度的参数。运动检测器计算运动预测的预测误差量（ME残差）。 FIFO存储器延迟输入视频数据的每个图像。主计算机通过ME残差，平坦度和内部AC来逼近指示每个图像的模式的难度的实际困难数据Dj，并且还根据近似的实际困难数据Dj计算压缩视频数据的目标数据量Tj。编码器执行压缩和编码，使得压缩视频数据的数据量基本上变为目标数据量Tj。

2. 发明申请

US20010000675A1 Video data encoding apparatus, video data encoding method, and video data transmission method 审中-公开
标题翻译：视频数据编码装置，视频数据编码方法和视频数据传输方法
公开(公告)号：US20010000675A1
公开(公告)日：2001-05-03
申请号：US09739058
申请日：2000-12-18
申请人： SONY CORPORATION.
发明人： Nobuhisa Obikane , Kanji Mihara , Takuya Kitamura
IPC分类号： H04N007/12
CPC分类号： H04N21/23655 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/18
摘要： Plural n number of encoders 21, 22 . . . 2n carry out reading in advance of parameter information PAR. null1, null2 . . . nulln with respect to respective n number of programs prog. 1, 2 . . . n to allow a controller 3 to estimate encoding difficulty related information nulldifficultynull when picture is encoded, and to compression-encode the plural n number of programs on the basis of target encoding rate that the controller 3 has calculated on the basis of the parameter information. The controller 3 calculates allocation code quantities target_rate null1, null2 . . . nulln every respective programs from the parameter information PAR. null1, null2 . . . nulln. A multiplexer 4 multiplexes streams nullstreamnull null1, null2 . . . nulln that the encoders 21, 22 . . . 2n have encoded in correspondence with the allocation code quantities target_rate null1, null2 . . . nulln.
摘要翻译：多个n个编码器21,22。。。 2n在参数信息PAR之前进行读取。＃1，＃2。。。 #n相对于相应的n个程序进行。 1，2。。。 n，以便控制器3估计图像编码时的编码难度相关信息“难度”，并且基于控制器3已经基于参数计算出的目标编码率对多个n个程序进行压缩编码信息。控制器3计算分配码量target_rate＃1，＃2。。。 #n参数信息PAR的各个程序。＃1，＃2。。。 #n。复用器4复用流“流”＃1，＃2。。。 #n编码器21,22。。。 2n根据分配码量target_rate＃1，＃2进行编码。。。 #n。

3. 发明申请

US20030128766A1 Transcoding system using encoding history information 有权
标题翻译：转码系统使用编码历史信息
公开(公告)号：US20030128766A1
公开(公告)日：2003-07-10
申请号：US10342055
申请日：2003-01-14
申请人： SONY CORPORATION
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04N007/12
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
摘要翻译：本发明提供一种具有MPEG解码器和MPEG编码器的代码转换器，用于改变作为编码处理的结果获得的编码比特流的GOP结构和比特率。 MPEG编码器接收在过去的编码处理中生成的过去的编码参数作为历史信息，并且通过选择性地使用过去的编码参数来执行当前编码处理，使得当前编码处理被优化。此外，编码器将过去的编码参数描述为编码比特流中的历史信息，以便在预编码处理中重用历史信息。即使通过代码转换器重复执行解码和编码处理，视频数据的图像质量也不会劣化。

4. 发明申请

US20040196907A1 Device and method for controlling image encoding, encoding system, transmission system and broadcast system 失效
标题翻译：用于控制图像编码，编码系统，传输系统和广播系统的装置和方法
公开(公告)号：US20040196907A1
公开(公告)日：2004-10-07
申请号：US10832665
申请日：2004-04-23
申请人： SONY CORPORATION
发明人： Kanji Mihara , Takuya Kitamura
IPC分类号： H04N007/12
CPC分类号： H04N21/2365 , H04N19/115 , H04N19/126 , H04N19/127 , H04N19/137 , H04N19/146 , H04N19/149 , H04N19/152 , H04N19/156 , H04N19/172 , H04N19/177 , H04N19/192 , H04N19/61 , H04N21/23655 , H04N21/4347
摘要： The present invention employs a statistical multiplexing method to enable suitable assignment of a target code rate to each program data. A controller (3) acquires encoding difficulty (Di) of each program from each of image encoders (2i). In accordance with an equation for transforming the encoding difficulty (Di) into a bit rate, the controller (3) calculates a temporary bit rate (Tmp_Ratei). Moreover, the controller (3) causes the sum of the target bit rates (Target_Ratei) to satisfy a predetermined allowable value by correcting the temporary bit rate (Tmp_Ratei) so as to determine a final target bit rate (Target_Ratei) and inputing the final target bit rate (Target_Ratei) to each of the image encoders (2i).
摘要翻译：本发明采用统计复用方法，使目标码率适合于每个节目数据的分配。控制器（3）从每个图像编码器（2i）获取每个节目的编码难度（Di）。根据用于将编码难度（Di）变换为比特率的方程式，控制器（3）计算临时比特率（Tmp_Ratei）。此外，控制器（3）通过校正临时比特率（Tmp_Ratei）来使目标比特率（Target_Ratei）的和满足预定的允许值，以便确定最终的目标比特率（Target_Ratei）并输入最终目标比特率（Target_Ratei）到每个图像编码器（2i）。

5. 发明申请

US20040228539A1 Image coding apparatus and method, and program and recording medium 失效
标题翻译：图像编码装置和方法以及程序和记录介质
公开(公告)号：US20040228539A1
公开(公告)日：2004-11-18
申请号：US10625520
申请日：2003-07-24
申请人： Sony Corporation
发明人： Shigeo Fujishiro , Takuya Kitamura
IPC分类号： G06K009/36
CPC分类号： H05K3/361 , H05K3/305 , H05K3/323 , H05K2201/10977
摘要： An bit-plane coding pass generator is provided in which for SP-pass processing quantization coefficient of each code block divided into bit planes, nullsignificant (S)null or nullnon-significant (N)null data in a predetermined area and those around the area and compared with an S/N matching pattern. The S/N matching pattern has been set when a jump can be made from an arbitrary sample point to a next sample point to be processed by SP pass. The jump is made to the next sample point to be processed by SP pass according to a jump address value obtained from a pattern coincident with a current S/N matching pattern. Thus, by reducing the time for the significant propagation (SP) pass defined in JPEG-2000, a code block can be coded at a higher speed by three coding passes.
摘要翻译：提供了一种位平面编码遍发生器，其中针对每个代码块的SP-pass处理量化系数分为比特平面，在预定区域中的“有效（S）”或“非有效（N）”数据）与S / N匹配模式进行比较。当可以从任意采样点到下一个待通过SP处理的采样点进行跳变时，设置S / N匹配模式。根据从与当前S / N匹配模式一致的图案获得的跳转地址值，对通过SP pass处理的下一个采样点进行跳转。因此，通过缩短在JPEG-2000中定义的显着传播（SP）传递的时间，可以通过三次编码通过以更高的速度对代码块进行编码。

6. 发明申请

US20030128292A1 Information processing apparatus, information processing method and recording medium 有权
公开(公告)号：US20030128292A1
公开(公告)日：2003-07-10
申请号：US10371897
申请日：2003-02-20
申请人： SONY CORPORATION
发明人： Takuya Kitamura , Mamoru Ueda , Katsumi Tahara
IPC分类号： H04N007/12 , H04N011/04
CPC分类号： H04N5/4401 , H04N7/083 , H04N7/085 , H04N7/088 , H04N11/20 , H04N19/107 , H04N19/11 , H04N19/112 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/137 , H04N19/149 , H04N19/152 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/188 , H04N19/196 , H04N19/40 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/70 , H04N21/2343 , H04N21/235 , H04N21/23602 , H04N21/23614 , H04N21/2662 , H04N21/4342 , H04N21/4348 , H04N21/435
摘要： Encoding parameters of picture and higher layers of importance to a number of applications, and encoding parameters of slice and lower layers of no importance to all applications are converted into auxiliary packets inserted respectively into a V-blanking area and an H-blanking area of a video-data signal output by a history-information-multiplexing apparatus employed in a video-decoding system. On the other hand, a video-encoding system extracts back the auxiliary packets superposed on the V-blanking area and the H-blanking area from an input base-band video signal. As a result, a technique of superposing information on data can be changed in accordance with the importance of the information and required information can be fetched with ease.

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