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公开(公告)号：US20070025444A1
公开(公告)日：2007-02-01
申请号：US11494767
申请日：2006-07-28
CPC分类号： H04N19/527 , H04N19/114 , H04N19/17 , H04N19/174 , H04N19/46 , H04N19/52 , H04N19/61 , H04N19/70
摘要： A local motion vector detection unit 66 obtains a local motion vector LMV for each macro block in a coding target frame image. A region setting unit 64 sets multiple global regions in the frame image. A global motion vector calculation unit 68 calculates a global motion vector GMV which indicates the global motion within each global region. A local motion vector difference coding unit 72 performs coding of the difference ΔLMV which has been obtained by making the difference between each of the local motion vectors LMV within the global region and the global motion vector GMV obtained for each global region. A global motion vector difference coding unit 74 performs coding of the difference ΔGMV which has been obtained by making the difference between each of the global motion vectors GMV obtained for corresponding global region and the reference global motion vector GMVB serving as a reference.
摘要翻译： 局部运动矢量检测单元66在编码目标帧图像中获得每个宏块的局部运动矢量LMV。 区域设置单元64在帧图像中设置多个全局区域。 全局运动矢量计算单元68计算指示每个全局区域内的全局运动的全局运动矢量GMV。 局部运动矢量差分编码单元72对通过使全局区域内的每个局部运动矢量LMV与为每个全局区域获得的全局运动矢量GMV之间的差而获得的差值DeltaLMV进行编码。 全局运动矢量差分编码单元74对通过使针对相应的全局区域获得的每个全局运动矢量GMV与基准全局运动矢量GMV B之间的差进行差分DeltaGMV的编码， 作为参考。
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公开(公告)号：US5668601A
公开(公告)日：1997-09-16
申请号：US387581
申请日：1995-02-13
申请人： Shigeyuki Okada , Hideki Yamauchi
发明人： Shigeyuki Okada , Hideki Yamauchi
CPC分类号： H04N21/4307 , H04N21/4305 , H04N21/4341
摘要： An audio/video decoding system capable of providing sufficient synchronization between an audio output and a video output. The decoding system has a parser, an audio decoder and a video decoder. The parser extracts an SCR (System Clock Reference), an audio time stamp and a video time stamp from a system stream, and demultiplexing the system stream into an audio stream and a video stream. The audio decoder computes an output timing for an audio output based on its decoding time, the SCR and the audio time stamp, and decodes the audio stream in accordance with the output timing. The video decoder computes an output timing for a video output based on its decoding time, the SCR and the video time stamp, and decodes the video stream in accordance with the output timing.
摘要翻译： 能够在音频输出和视频输出之间提供足够的同步的音频/视频解码系统。 解码系统具有解析器，音频解码器和视频解码器。 解析器从系统流中提取SCR（系统时钟参考），音频时间戳和视频时间戳，以及将系统流解复用为音频流和视频流。 音频解码器根据其解码时间，SCR和音频时间戳计算音频输出的输出定时，并根据输出定时对音频流进行解码。 视频解码器根据其解码时间，SCR和视频时间戳计算视频输出的输出定时，并根据输出定时对视频流进行解码。
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13.发明授权公开(公告)号：US07925097B2
公开(公告)日：2011-04-12
申请号：US11356470
申请日：2006-02-17
申请人： Tetsu Tarumoto , Tsuyoshi Watanabe , Yasuo Ishii , Shigeyuki Okada , Yoshihiro Matsuo , Hideki Yamauchi , Noriaki Kojima
发明人： Tetsu Tarumoto , Tsuyoshi Watanabe , Yasuo Ishii , Shigeyuki Okada , Yoshihiro Matsuo , Hideki Yamauchi , Noriaki Kojima
CPC分类号： H04N21/234327 , H04N7/17318 , H04N19/132 , H04N19/154 , H04N19/187 , H04N19/31 , H04N19/33 , H04N19/36 , H04N19/61 , H04N19/63 , H04N21/25866 , H04N21/2662 , H04N21/4318 , H04N21/8355
摘要： An image coding apparatus is provided which satisfies various levels of demands on image distribution, both from image providers and from users. The image coding apparatus includes a coding block which codes predetermined image data. A separation unit separates the coded image data into basic data for reproducing contents of the coded image data as a visible image, and complementary data for complementing the basic data, so that the two pieces of data are distributed on different occasions. An adding unit adds information for independent copyright control to at least either one of the basic data and the complementary data.
摘要翻译： 提供一种图像编码装置，其满足来自图像提供者和用户对图像分发的各种要求。 图像编码装置包括编码预定图像数据的编码块。 分离单元将编码图像数据分离为用于再现作为可见图像的编码图像数据的内容的基本数据，以及用于补充基本数据的补充数据，使得两个数据在不同的场合下分布。 添加单元将用于独立版权控制的信息添加到基本数据和补充数据中的至少一个。
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公开(公告)号：US20070064809A1
公开(公告)日：2007-03-22
申请号：US11520859
申请日：2006-09-14
申请人： Tsuyoshi Watanabe , Shinichiro Okada , Yasuo Ishii , Shigeyuki Okada , Hideki Yamauchi , Yuh Matsuda , Yoshihiro Matsuo , Haruhiko Murata
发明人： Tsuyoshi Watanabe , Shinichiro Okada , Yasuo Ishii , Shigeyuki Okada , Hideki Yamauchi , Yuh Matsuda , Yoshihiro Matsuo , Haruhiko Murata
CPC分类号： H04N19/517 , H04N19/146 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/61 , H04N19/63
摘要： A motion vector holding unit 61 holds motion vector information with respect to a backward reference frame detected beforehand and received from a motion compensation unit 60. A motion vector calculation unit 63 calculates multiple motion vectors for each macro block defined in a coding target frame with reference to the motion vector information with respect to the backward reference frame held by the motion vector holding unit 61 according to each calculation mode of a set of different calculation modes. A motion compensation prediction unit 64 performs motion compensation using motion vectors obtained for each calculation mode, thereby creating predicted images. The predicted images are output to a coding amount estimation unit 65. The coding amount estimation unit 65 estimates the coding amount of the subtraction image, which is the subtraction between the predicted image and the original image, for each calculation mode. A motion vector selection unit 67 makes a comparison between the coding amounts of the subtraction images, and selects the motion vector which provides the smallest coding amount.
摘要翻译： 运动矢量保持单元61保持关于事先检测并从运动补偿单元60接收的反向参考帧的运动矢量信息。 运动矢量计算单元63根据运动矢量保持单元61保持的反向参考帧的运动矢量信息，根据组的每个计算模式，计算在编码目标帧中定义的每个宏块的多个运动矢量 的不同计算模式。 运动补偿预测单元64使用针对每个计算模式获得的运动矢量来执行运动补偿，由此创建预测图像。 将预测图像输出到编码量估计单元65。 编码量估计单元65针对每个计算模式估计作为预测图像和原始图像之间的减法的减法图像的编码量。 运动矢量选择部67进行减法图像的编码量的比较，并选择提供最小编码量的运动矢量。
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15.发明申请Coding method producing generating smaller amount of codes for motion vectors 审中-公开产生较小量运动矢量代码的编码方法公开(公告)号：US20070064791A1
公开(公告)日：2007-03-22
申请号：US11520024
申请日：2006-09-13
申请人： Shigeyuki Okada , Yuh Matsuda , Hideki Yamauchi
发明人： Shigeyuki Okada , Yuh Matsuda , Hideki Yamauchi
摘要： A motion vector coder performs coding on motion vectors MV0, MV1 and MV2 in the stated order. Initially, the motion vector coder receives the motion vectors MV0-MV2 from a motion vector holder. The motion vector coder codes the motion vector MV0 at the lowest layer 0. Subsequently, the motion vector coder codes (½*MV0-MV1), which is a difference between ½ of MV0 and MV1, instead of coding the motion vector MV1 at layer 1. The motion vector coder then codes (½*MV1-MV2), which is a difference between ½ of MV1 and MV2, instead of coding the motion vector MV2 at layer 2.
摘要翻译： 运动矢量编码器按照所述顺序对运动矢量MV 0，MV 1和MV 2进行编码。 最初，运动矢量编码器从运动矢量保持器接收运动矢量MV 0 -MV 2 2。 运动矢量编码器对最下层0的运动矢量MV <0> <0>进行编码。随后，运动矢量编码器对（1/2 * MV 0 -MV 1 / SUB>），它是MV 1和MV 1之间的差值，而不是在层1处编码运动矢量MV 1 <1>。 运动矢量编码器然后编码（1/2 * MV 1 -MV 2 2），其是MV＆lt; 1＆gt;和MV＆lt; SUB＆lt; > 2 ，而不是在层2处编码运动矢量MV 2 。
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公开(公告)号：US07999859B2
公开(公告)日：2011-08-16
申请号：US12076702
申请日：2008-03-21
CPC分类号： H04N1/212 , H04N1/2112 , H04N1/2137 , H04N5/23293 , H04N5/772 , H04N5/907 , H04N9/7921
摘要： In a digital camera, when snapshot shooting is instructed during recording of a moving image, a shot still image is temporarily pushed aside in a memory area for use in pushing aside (7a) in a frame buffer (7). A currently shooting motion image and a still image are displayed in parallel on a display (9), so that a user can confirm a content of a snapshot. The moving image continues to be recorded even during a push-aside operation. After a moving image processing is completed, the still image is processed by an image correcting circuit (4). The frame buffer (7) comprises a plurality of frame recording areas, and is shared on the occasions of a moving image processing and a still image processing. In a normal moving image processing, these areas are utilized in a cyclic manner, and when the still image is shot, any of areas will be utilized. Thereafter, the rest of areas are utilized in the cyclic manner for the moving images. The recording function for the moving image and still image is improved at low cost, it becomes easy to take a snapshot, and the merchandise size is not increased.
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公开(公告)号：US20090147847A1
公开(公告)日：2009-06-11
申请号：US11887335
申请日：2006-02-09
申请人： Yasuo Ishii , Hirotoshi Mori , Shigeyuki Okada
发明人： Yasuo Ishii , Hirotoshi Mori , Shigeyuki Okada
CPC分类号： H04N19/17 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/114 , H04N19/119 , H04N19/124 , H04N19/132 , H04N19/139 , H04N19/14 , H04N19/157 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/30 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/91
摘要： An encoding apparatus 100 performs intra-frame encoding or inter-frame encoding using a predetermined scheme, or performs an orthogonal transform on an image as one process in the intra-frame encoding or the inter-frame encoding. In order to perform the intra-frame encoding, the inter-frame encoding, or the orthogonal transform, various parameters to be specified by the encoding apparatus are specified as an abbreviated parameter which uses a number of bits less than the number of bits that is assigned by the specification. This enables to reduce the data amount of a parameter in the coded data.
摘要翻译： 编码装置100使用预定方案进行帧内编码或帧间编码，或者对帧内编码或帧间编码中的一个处理对图像进行正交变换。 为了执行帧内编码，帧间编码或正交变换，由编码装置指定的各种参数被指定为使用少于比特数的比特数的缩写参数 由规范分配。 这使得能够减少编码数据中的参数的数据量。
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公开(公告)号：US20080174669A1
公开(公告)日：2008-07-24
申请号：US12076716
申请日：2008-03-21
IPC分类号： H04N5/243
CPC分类号： H04N1/212 , H04N1/2112 , H04N1/2137 , H04N5/23293 , H04N5/772 , H04N5/907 , H04N9/7921
摘要： In a digital camera, when snapshot shooting is instructed during recording of a moving image, a shot still image is temporarily pushed aside in a memory area for use in pushing aside (7a) in a frame buffer (7). A currently shooting motion image and a still image are displayed in parallel on a display (9), so that a user can confirm a content of a snapshot. The moving image continues to be recorded even during a push-aside operation. After a moving image processing is completed, the still image is processed by an image correcting circuit (4). The frame buffer (7) comprises a plurality of frame recording areas, and is shared on the occasions of a moving image processing and a still image processing. In a normal moving image processing, these areas are utilized in a cyclic manner, and when the still image is shot, any of areas will be utilized. Thereafter, the rest of areas are utilized in the cyclic manner for the moving images. The recording function for the moving image and still image is improved at low cost, it becomes easy to take a snapshot, and the merchandise size is not increased.
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公开(公告)号：US07174046B2
公开(公告)日：2007-02-06
申请号：US10077208
申请日：2002-02-14
申请人： Shigeyuki Okada
发明人： Shigeyuki Okada
CPC分类号： H04N19/1883 , H04N19/124 , H04N19/63
摘要： A monitoring unit monitors continuously wavelet transform component output from a wavelet transformer. When a condition “make all the components of the HH sub-band 0” is applied as a quantization strategy, the monitoring unit detects the maximum value N among the components in the HH sub-band and determines the threshold as N+1. The threshold is then sent to a quantizer.
摘要翻译： 监视单元监视从小波变换器输出的小波变换分量。 当将“使HH子带0的所有分量”作为量化策略时，监视单元检测HH子带中的分量中的最大值N，并将该阈值确定为N + 1。 然后将阈值发送到量化器。
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公开(公告)号：US07050118B2
公开(公告)日：2006-05-23
申请号：US09964578
申请日：2001-09-28
申请人： Shigeyuki Okada , Kouichi Yamada , Mamoru Mukuno
发明人： Shigeyuki Okada , Kouichi Yamada , Mamoru Mukuno
IPC分类号： H04N5/50
CPC分类号： H04N21/4383 , H04N5/4401 , H04N21/4263 , H04N21/433 , H04N21/4382 , H04N21/44016 , H04N21/44209 , H04N21/4435
摘要： The digital broadcast receiving apparatus according to the present invention includes a tuning unit for outputting normal image data for performing a normal reproduction operation corresponding to a user selected channel, a memory unit for outputting background image data for performing a background reproduction operation when the normal reproduction operation cannot be performed, a data selector for receiving the normal image data and the background image data and outputting one of the normal image data and the background image data, and an MPEG video decode unit for decoding image data output by the data selector to generate an image signal. The tuning unit successively receives the respective channel selected in the background independently of the user selection, and stores the background image data corresponding to the respective channels in the memory unit.
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