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1. 发明申请

US20110080943A1 VIDEO DATA COMPRESSION APPARATUS AND METHOD OF SAME 审中-公开
标题翻译：视频数据压缩装置及其方法
公开(公告)号：US20110080943A1
公开(公告)日：2011-04-07
申请号：US12967551
申请日：2010-12-14
申请人： Kanji MIHARA , Takuya Kitamura , Takao Suzuki
发明人： Kanji MIHARA , Takuya Kitamura , Takao Suzuki
IPC分类号： H04N7/26
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 the time required for processing is short. The apparatus 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. An encoder performs 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并且处理所需时间短的视频数据压缩装置。该装置近似实际困难数据Dj，其表示ME残差，平坦度和AC内的每个图像的图案的难度，并进一步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成目标数据量Tj。

2. 发明授权

US06337879B1 Video data compression apparatus and method of same 失效
公开(公告)号：US06337879B1
公开(公告)日：2002-01-08
申请号：US08909448
申请日：1997-08-11
申请人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
发明人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
IPC分类号： H04B166
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.

3. 发明授权

US07881373B2 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：US07881373B2
公开(公告)日：2011-02-01
申请号：US11223162
申请日：2005-09-08
申请人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
发明人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
IPC分类号： H04N7/12 , G06K9/36
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 the time required for processing is short. The apparatus 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. An encoder performs 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并且处理所需时间短的视频数据压缩装置。该装置近似实际困难数据Dj，其表示ME残差，平坦度和AC内的每个图像的图案的难度，并进一步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成目标数据量Tj。

4. 发明授权

US07050495B2 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：US07050495B2
公开(公告)日：2006-05-23
申请号：US10045576
申请日：2001-03-20
申请人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
发明人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
IPC分类号： H04N7/12
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： In the video data compression apparatus 1, the host computer 20 controls the operation of the constituent parts of the video data compression apparatus 1. Further, the host computer 20 receives the amount of data of the compressed video data generated by preliminarily compressing and coding the noncompressed video data VIN by the encoder 162 of the simplified two pass processing unit 16, the value of the direct current component (DC component) of the video data after the DCT processing, and the power value of the alternating current component (AC component) via a control signal C16 and calculates the difficulty of the pattern of the compressed video data based on these received values. Further, the host computer 20 allocates the target amount of data Tj of the compressed video data generated by the encoder 18 via the control signal C18 for every picture based on the calculated difficulty, sets the same in the quantization circuit 168 (FIG. 3) of the encoder 18, and adaptively controls the compression rate of the encoder 18 in units of pictures.
摘要翻译：在视频数据压缩装置1中，主计算机20控制视频数据压缩装置1的组成部分的操作。此外，主计算机20接收通过简化的双通道处理单元16的编码器162预先对非压缩视频数据VIN进行压缩和编码而产生的压缩视频数据的数据量，直流分量）和经由控制信号C16的交流分量（AC分量）的功率值，并基于这些接收值计算压缩视频数据的模式的难度。此外，主计算机20基于计算出的难度，经由编码器18经由控制信号C 18生成的压缩视频数据的目标数量T SUB分配给每个图像，将其设置为编码器18的量化电路168（图3），并且以图像为单位自适应地控制编码器18的压缩率。

5. 发明申请

US20060045364A1 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：US20060045364A1
公开(公告)日：2006-03-02
申请号：US11223162
申请日：2005-09-08
申请人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
发明人： Kanji Mihara , Takuya Kitamura , Takao Suzuki
IPC分类号： G06K9/36
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 the time required for processing is short. The apparatus 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. An encoder performs 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并且处理所需时间短的视频数据压缩装置。该装置通过ME残差，平坦度和内部AC近似表示每个图像的图案的难度的实际困难数据D＆lt; j＆gt; j，并且进一步计算目标数据量T 从近似的实际困难数据D 的压缩视频数据的“SUB”。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T j i。

6. 发明授权

US08938000B2 Transcoding system using encoding history information 有权
公开(公告)号：US08938000B2
公开(公告)日：2015-01-20
申请号：US11879406
申请日：2007-07-17
申请人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04N7/50 , H04N19/115 , H04N19/426 , H04N19/61 , H04N19/152 , H04N19/107 , H04N19/40
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.

7. 发明申请

US20080013626A1 Transcoding system using encoding history information 审中-公开
公开(公告)号：US20080013626A1
公开(公告)日：2008-01-17
申请号：US11879406
申请日：2007-07-17
申请人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04B1/66
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.

8. 发明申请

US20080013625A1 Transcoding system using encoding history information 失效
公开(公告)号：US20080013625A1
公开(公告)日：2008-01-17
申请号：US11879400
申请日：2007-07-17
申请人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04B1/66
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.

9. 发明授权

US08934536B2 Transcoding system using encoding history information 有权
公开(公告)号：US08934536B2
公开(公告)日：2015-01-13
申请号：US11879245
申请日：2007-07-17
申请人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04B1/66 , H04N19/115 , H04N19/426 , H04N19/61 , H04N19/152 , H04N19/107 , H04N19/40
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.

10. 发明授权

US08687690B2 Transcoding system using encoding history information 失效
标题翻译：转码系统使用编码历史信息
公开(公告)号：US08687690B2
公开(公告)日：2014-04-01
申请号：US11879407
申请日：2007-07-17
申请人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
发明人： Katsumi Tahara , Yoshihiro Murakami , Takuya Kitamura , Kanji Mihara
IPC分类号： H04B1/66
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GOP结构和编码比特流的比特率。 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。

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