公开(公告)号：US5715009A

公开(公告)日：1998-02-03

申请号：US477855

申请日：1995-06-07

申请人： Katsumi Tahara ,  Hiromi Yoshinari

发明人： Katsumi Tahara ,  Hiromi Yoshinari

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50 ,  H04N7/133 ,  H04N7/137

CPC分类号： H04N7/54 ,  H04N19/159 ,  H04N19/172 ,  H04N19/40 ,  H04N19/46 ,  H04N19/61 ,  H04N21/23614 ,  H04N21/4348 ,  H04N9/8047

摘要： A picture type identifier, indicating one of intra-picture coding (an I-picture), forward or backward predictive coding (a P-picture) and bi-directionally predictive coding (a B-picture), is included with a picture signal when the signal is encoded and when the signal is decoded. Each of initial and subsequent encoding and decoding is a function of the included picture type.

公开(公告)号：US5691767A

公开(公告)日：1997-11-25

申请号：US638987

申请日：1996-04-24

申请人： Katsumi Tahara

发明人： Katsumi Tahara

IPC分类号： H04N7/08 ,  G06T3/40 ,  H04N7/081 ,  H04N7/14 ,  H04N7/24 ,  H04N19/00 ,  H04N19/107 ,  H04N19/126 ,  H04N19/136 ,  H04N19/152 ,  H04N19/176 ,  H04N19/196 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/51 ,  H04N19/59 ,  H04N19/60 ,  H04N19/65 ,  H04N19/70 ,  H04N19/85 ,  H04N19/89 ,  H04N19/91

CPC分类号： H04N7/147 ,  G06T3/40 ,  H04N19/105 ,  H04N19/124 ,  H04N19/137 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/198 ,  H04N19/423 ,  H04N19/61 ,  H04N19/82 ,  H04N21/2383 ,  H04N21/4382 ,  H04N19/107 ,  H04N19/146

摘要： Image data of four frames are stored in four memories and the image data from the four memories are sequentially transmitted, whereby still picture image data having a resolution twice the resolution of a common intermediate format (CIF) image based on the video CODEC recommendation H.261 can be transmitted.

摘要翻译： 四个帧的图像数据被存储在四个存储器中，并且顺序地发送来自四个存储器的图像数据，由此静止图像数据具有基于视频CODEC推荐H的公共中间格式（CIF）图像的分辨率的两倍的分辨率。 261可以传输。

公开(公告)号：US5642165A

公开(公告)日：1997-06-24

申请号：US520841

申请日：1995-08-29

申请人： Teruhiko Suzuki ,  Katsumi Tahara ,  Tak Yen Tong

发明人： Teruhiko Suzuki ,  Katsumi Tahara ,  Tak Yen Tong

IPC分类号： G06T9/00 ,  H04N1/41 ,  H04N19/115 ,  H04N19/117 ,  H04N19/126 ,  H04N19/134 ,  H04N19/14 ,  H04N19/146 ,  H04N19/162 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/194 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91 ,  H04N7/36 ,  H04N7/50

CPC分类号： H04N19/80 ,  H04N19/107 ,  H04N19/112 ,  H04N19/117 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N19/146

摘要： A motion picture encoding method and apparatus for adaptively switching filters in accordance with the property of a motion picture and the condition for encoding and to improve the encoding efficiency. A motion picture is encoded a plurality of times, an encoding parameter for encoding is optimized, the property of the motion picture signal is measured, and filtering is performed by using the encoding parameter or the property of the measured motion picture signal and thereby optimizing the filter characteristic only for the final-time encoding so as to practically generate and output an encoding signal (bit stream).

摘要翻译： 一种用于根据运动图像的属性和编码条件自适应地切换滤波器并提高编码效率的运动图像编码方法和装置。 对运动图像进行多次编码，对编码的编码参数进行优化，测量运动图像信号的特性，并通过使用编码参数或所测量的运动图像信号的特性进行滤波，从而优化 滤波器特性仅用于最终时间编码，以实际生成并输出编码信号（比特流）。

公开(公告)号：US5537147A

公开(公告)日：1996-07-16

申请号：US875025

申请日：1992-04-28

申请人： Katsumi Tahara

发明人： Katsumi Tahara

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N19/102 ,  H04N19/107 ,  H04N19/126 ,  H04N19/132 ,  H04N19/136 ,  H04N19/14 ,  H04N19/152 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/587 ,  H04N19/59 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/82 ,  H04N19/85 ,  H04N19/91 ,  H04N7/30 ,  H04N7/32

CPC分类号： H04N19/90 ,  H04N19/107 ,  H04N19/51 ,  H04N19/61

摘要： A coding apparatus and method for intraframe and interframe coding a digital video signal to produce intraframe coded data and interframe coded data, respectively. The intraframe and interframe coded data are both orthogonally transformed to produce transformed intraframe and interframe coded data. Either the transformed intraframe coded data or the transformed interframe coded data is selected in accordance with respective coefficient data of the intraframe and interframe coded data.

摘要翻译： 一种用于帧内和帧间编码数字视频信号以分别产生帧内编码数据和帧间编码数据的编码装置和方法。 帧内和帧间编码数据都进行正交变换，以产生经变换的帧内和帧间编码数据。 根据帧内和帧间编码数据的相应系数数据来选择经变换的帧内编码数据或经变换的帧间编码数据。

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.

公开(公告)号：US08170118B2

公开(公告)日：2012-05-01

申请号：US11510995

申请日：2006-08-28

申请人： Takuya Kitamura ,  Mamoru Ueda ,  Katsumi Tahara

发明人： Takuya Kitamura ,  Mamoru Ueda ,  Katsumi Tahara

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

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.

摘要翻译： 将图像的编码参数和对多个应用的​​重要性的较高层以及对于所有应用不重要的切片和较低层的编码参数被转换成分别插入到V消隐区域和H消隐区域的H消隐区域中的辅助分组 由视频解码系统中采用的历史信息复用装置输出的视频数据信号。 另一方面，视频编码系统从输入基带视频信号中提取叠加在V消隐区域和H消隐区域上的辅助分组。 结果，可以根据信息的重要性来改变对数据叠加信息的技术，并且可以容易地获得所需的信息。

公开(公告)号：US08160134B2

公开(公告)日：2012-04-17

申请号：US12487356

申请日：2009-06-18

申请人： Katsumi Tahara ,  Yoshihiro Murakami

发明人： Katsumi Tahara ,  Yoshihiro Murakami

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N21/4342 ,  H04N19/172 ,  H04N19/177 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23602 ,  H04N21/8547

摘要： The present invention relates to an encoding system for encoding input video data and a multiplexing system for multiplexing a plurality of encoded streams. More particularly, it proposes a system and method that involve describing, in encoded streams, information on the picture order of input video data, and using the picture order information when generating packetized elementary stream (PES) packets, to prevent delays associated with the PES packet generation.MPEG encoders generate PTS_count and DTS_count based on the information obtained from the number of fields in the input video data and describe the PTS_count and DTS_count data as picture order information in encoded streams. The packetizers for generating packetized elementary stream take out PTS_count and DTS_count described in the encoded streams, generate presentation time stamps and decoding time stamps based on PTS_count and DTS_count, and add these time stamps as PES header data.

摘要翻译： 本发明涉及用于编码输入视频数据的编码系统和用于复用多个编码流的复用系统。 更具体地，提出了一种系统和方法，其涉及在编码流中描述关于输入视频数据的图像顺序的信息，以及在生成分组化基本流（PES）分组时）使用图像顺序信息，以防止与PES相关联的延迟 数据包生成 MPEG编码器基于从输入视频数据中的字段数获得的信息生成PTS_count和DTS_count，并将PTS_count和DTS_count数据描述为编码流中的图像顺序信息。 用于产生分组化基本流的打包器取出编码流中描述的PTS_count和DTS_count，基于PTS_count和DTS_count产生演示时间标记和解码时间戳，并将这些时间戳作为PES头数据添加。

公开(公告)号：USRE43238E1

公开(公告)日：2012-03-13

申请号：US12152290

申请日：2008-05-12

申请人： Katsumi Tahara ,  Hiromi Yoshinari

发明人： Katsumi Tahara ,  Hiromi Yoshinari

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

CPC分类号： H04N21/4348 ,  H04N5/765 ,  H04N7/54 ,  H04N9/8042 ,  H04N19/159 ,  H04N19/172 ,  H04N19/40 ,  H04N19/46 ,  H04N19/61 ,  H04N21/23614

摘要： A picture type identifier, indicating one of intra-picture coding (an I-picture), forward or backward predictive coding (a P-picture) and bi-directionally predictive coding (a B-picture), is included with a picture signal when the signal is encoded and when the signal is decoded. Each of initial and subsequent encoding and decoding is a function of the included picture type.

公开(公告)号：US07953718B2

公开(公告)日：2011-05-31

申请号：US10475870

申请日：2003-02-26

申请人： Yoshiaki Shibata ,  Takumi Yoshida ,  Katsumi Tahara

发明人： Yoshiaki Shibata ,  Takumi Yoshida ,  Katsumi Tahara

IPC分类号： G06F17/30

CPC分类号： G11B20/10 ,  G11B27/28

摘要： A UMID extracting/embedding unit 10 extracts UMID data embedded in material data. A CPU 11 updates a generation indicated by generation data in the extracted UMID data to generate new generation data when processing accompanied by a deterioration of quality is applied to the material data such as recording to a database 8. The UMID extracting/embedding unit 10 embeds the new generation data in the material data.

摘要翻译： UMID提取/嵌入单元10提取嵌入物料数据中的UMID数据。 CPU 11通过提取的UMID数据中的生成数据所指示的代数来更新，以便在伴随着质量恶化的处理被应用于材料数据如记录到数据库8时产生新的生成数据.MUID提取/嵌入单元10嵌入 材料数据中的新一代数据。

公开(公告)号：US07551672B1

公开(公告)日：2009-06-23

申请号：US09647620

申请日：2000-02-04

申请人： Katsumi Tahara ,  Yoshihiro Murakami

发明人： Katsumi Tahara ,  Yoshihiro Murakami

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N21/4342 ,  H04N19/172 ,  H04N19/177 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23602 ,  H04N21/8547

摘要： The present invention relates to an encoding system for encoding input video data and a multiplexing system for multiplexing a plurality of encoded streams. More particularly, it proposes a system and method that involve describing, in encoded streams, information on the picture order of input video data, and using the picture order information when generating packetized elementary stream (PES) packets, to prevent delays associated with the PES packet generation.MPEG encoders generate PTS_count and DTS_count based on the information obtained from the number of fields in the input video data and describe the PTS_count and DTS_count data as picture order information in encoded streams. The packetizers for generating packetized elementary stream take out PTS_count and DTS_count described in the encoded streams, generate presentation time stamps and decoding time stamps based on PTS_count and DTS_count, and add these time stamps as PES header data.

摘要翻译： 本发明涉及用于编码输入视频数据的编码系统和用于复用多个编码流的复用系统。 更具体地，提出了一种系统和方法，其涉及在编码流中描述关于输入视频数据的图像顺序的信息，以及在生成分组化基本流（PES）分组时）使用图像顺序信息，以防止与PES相关联的延迟 数据包生成 MPEG编码器基于从输入视频数据中的字段数获得的信息生成PTS_count和DTS_count，并将PTS_count和DTS_count数据描述为编码流中的图像顺序信息。 用于产生分组化基本流的打包器取出编码流中描述的PTS_count和DTS_count，基于PTS_count和DTS_count产生演示时间标记和解码时间戳，并将这些时间戳作为PES头数据添加。