公开(公告)号：US20090256964A1

公开(公告)日：2009-10-15

申请号：US12480207

申请日：2009-06-08

申请人： Shinichiro Okada ,  Shigeyuki Okada

发明人： Shinichiro Okada ,  Shigeyuki Okada

IPC分类号： H04N5/445

CPC分类号： H04N5/4401 ,  G11B27/105 ,  G11B27/28 ,  G11B27/326 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/2562 ,  H04N5/45 ,  H04N5/76 ,  H04N5/781 ,  H04N9/8042 ,  H04N9/8205 ,  H04N9/8227 ,  H04N21/4316 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/440263 ,  H04N21/440281 ,  H04N21/47217 ,  H04N21/8455

摘要： The moving images under reproduction are displayed in a main screen and a plurality of thumbnail images that serve as indexes by which to search for a desired scene are displayed. Moreover, the thus displayed thumbnail images are updated at a predetermined timing according as the moving images progress.

摘要翻译： 正在再现的运动图像显示在主屏幕中，并且显示用作搜索期望场景的索引的多个缩略图。 此外，根据运动图像的进行，由此显示的缩略图像以预定的定时更新。

公开(公告)号：US20090022412A1

公开(公告)日：2009-01-22

申请号：US12172621

申请日：2008-07-14

申请人： Shigeyuki OKADA

发明人： Shigeyuki OKADA

IPC分类号： G06K9/36

CPC分类号： H04N19/59 ,  H04N19/132 ,  H04N19/162 ,  H04N19/17 ,  H04N19/172 ,  H04N19/196 ,  H04N19/33 ,  H04N19/40 ,  H04N19/61

摘要： A hierarchical coding unit hierarchically codes picked-up moving images. A storage stores moving image coded data which have been coded by the hierarchical coding unit. A hierarchical decoding unit decodes part of the moving image coded data so as to generate a moving image whose image quality is lower than the moving images. A recoding unit codes the moving image decoded by the hierarchical decoding unit. The hierarchical decoding unit decodes the moving image coded data starting from a lowest hierarchy up to a hierarchy corresponding to a specified resolution.

摘要翻译： 分层编码单元分层编码拾取的运动图像。 存储器存储由分层编码单元编码的运动图像编码数据。 分层解码单元解码部分运动图像编码数据，以便生成图像质量低于运动图像的运动图像。 记录单元对由分层解码单元解码的运动图像进行编码。 分层解码单元将从最低层次开始的运动图像编码数据解码为对应于指定分辨率的层次结构。

公开(公告)号：US20080212886A1

公开(公告)日：2008-09-04

申请号：US12073047

申请日：2008-02-28

申请人： Yasuo Ishii ,  Mitsuru Suzuki ,  Shigeyuki Okada

发明人： Yasuo Ishii ,  Mitsuru Suzuki ,  Shigeyuki Okada

IPC分类号： G06K9/36

CPC分类号： H04N19/17 ,  H04N19/105 ,  H04N19/124 ,  H04N19/152 ,  H04N19/176

摘要： A correlation evaluation unit evaluates a correction between a predetermined region in a targeted picture and a region corresponding to the region in a picture differing from the targeted picture in a temporal direction. A quantization control unit adaptively controls quantization processing for the predetermined region in the targeted picture, according to an evaluation obtained by the correlation evaluation unit. For example, when it is determined by an evaluation value obtained by the correlation evaluation unit that the correlation is weaker than a predetermined threshold value, the quantization control unit enlarges a quantization step used for quantization of the predetermined region.

摘要翻译： 相关评估单元在时间方向上评估目标图像中的预定区域和与目标图像不同的图像中的区域的区域之间的校正。 量化控制单元根据由相关评估单元获得的评估自适应地控制目标图像中的预定区域的量化处理。 例如，当由相关评估单元获得的评估值确定相关性弱于预定阈值时，量化控制单元放大用于量化预定区域的量化步长。

公开(公告)号：US07418146B2

公开(公告)日：2008-08-26

申请号：US11054537

申请日：2005-02-10

申请人： Tsuyoshi Watanabe ,  Shigeyuki Okada

发明人： Tsuyoshi Watanabe ,  Shigeyuki Okada

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/436 ,  H04N19/13 ,  H04N19/42 ,  H04N19/44 ,  H04N19/61 ,  H04N19/63

摘要： Coded data are inputted from a stream analyzing unit to an entropy decoding unit. A group of peripheral information registers stores peripheral information on a target pixel for estimating a context used for arithmetic decoding of the coded data. Based on the peripheral information stored in the group of peripheral registers, a context estimation unit estimates a context and delivers the estimated context to an arithmetic decoding unit. The arithmetic decoding unit decodes the coded data based on a context label, then derives a decision and supplies the decision to an inverse quantization unit. The peripheral information stored in the group of peripheral registers is updated by a decoding result of the arithmetic decoding unit in the same cycle as the decoding.

摘要翻译： 编码数据从流分析单元输入到熵解码单元。 一组周边信息寄存器存储关于用于估计用于编码数据的算术解码的上下文的目标像素的外围信息。 基于存储在外围寄存器组中的外围信息，上下文估计单元估计上下文并将估计上下文传送到算术解码单元。 算术解码单元基于上下文标签解码编码数据，然后导出判定，并将判定提供给逆量化单元。 存储在外围寄存器组中的外围信息通过与解码相同的周期的算术解码单元的解码结果来更新。

公开(公告)号：US20080174668A1

公开(公告)日：2008-07-24

申请号：US12076715

申请日：2008-03-21

申请人： Shigeyuki Okada ,  Hiroshi Hanafusa ,  Noriaki Kojima

发明人： Shigeyuki Okada ,  Hiroshi Hanafusa ,  Noriaki Kojima

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.

摘要翻译： 在数码相机中，当在记录运动图像期间指示快照拍摄时，将拍摄静止图像暂时推到存储区域中，以用于在帧缓冲器（7）中推送（7a）。 在显示器（9）上并行显示当前拍摄的运动图像和静止图像，使得用户可以确认快照的内容。 移动图像即使在推挽操作期间也继续记录。 在运动图像处理完成之后，静止图像由图像校正电路（4）处理。 帧缓冲器（7）包括多个帧记录区域，并且在运动图像处理和静止图像处理的情况下共享。 在正常运动图像处理中，这些区域以循环方式使用，并且当拍摄静止图像时，将利用任何区域。 此后，其余区域以循环方式用于运动图像。 移动图像和静止图像的记录功能以低成本提高，容易拍摄快照，商品尺寸不增加。

公开(公告)号：US07403563B2

公开(公告)日：2008-07-22

申请号：US10449537

申请日：2003-06-02

申请人： Shigeyuki Okada ,  Hideki Yamauchi

发明人： Shigeyuki Okada ,  Hideki Yamauchi

IPC分类号： H04B1/66

CPC分类号： H04N21/4402 ,  H04N21/23424 ,  H04N21/44016

摘要： A variable-length decoding (VLD) unit performs a variable-length decoding on an MPEG video stream. An inverse quantization (IQ) unit computes a discrete-cosine-transform (DCT) coefficient by performing an inverse quantization on results of decoding by the VLD unit. An inverse-discrete-cosine-transform (IDCT) unit carries out an IDCT for the DCT coefficients computed by the IQ unit so as to convert frequency components into the original signals. A motion-compensated-prediction (MC) unit performs a best-effort reproduction processing on received frames, during the time until the arrival of a frame serving as a reference for decoding, and returns to a normal decoding processing after the reference frame has been received.

摘要翻译： 可变长度解码（VLD）单元对MPEG视频流执行可变长度解码。 逆量化（IQ）单元通过对VLD单元的解码结果执行逆量化来计算离散余弦变换（DCT）系数。 逆离散余弦变换（IDCT）单元对由IQ单元计算的DCT系数执行IDCT，以将频率分量转换为原始信号。 运动补偿预测（MC）单元在直到作为用于解码的参考的帧的到达之前的时间内对接收到的帧执行尽力再现处理，并且在参考帧已经被执行之后返回到正常解码处理 收到了

公开(公告)号：US20070047649A1

公开(公告)日：2007-03-01

申请号：US11511439

申请日：2006-08-29

申请人： Mitsuru Suzuki ,  Shigeyuki Okada ,  Hideki Yamauchi

发明人： Mitsuru Suzuki ,  Shigeyuki Okada ,  Hideki Yamauchi

IPC分类号： H04N11/04 ,  H04N11/02

CPC分类号： H04N19/61 ,  H04N19/52

摘要： A motion vector search unit determines a unit area of a bidirectional prediction frame for each motion vector of a backward reference frame to pass through, and stores information on the unit area to be passed into a pass area number holding unit. A reference vector prediction unit consults the pass area number holding unit to acquire the motion vector of the backward reference frame that passes a target unit area of the bidirectional prediction frame from a motion vector holding unit, and determines a reference vector to be applied to this target unit area. The motion vector search unit applies the reference vector to the target unit area of the bidirectional prediction frame, determines a forward motion vector and a backward motion vector of the target unit area by linear prediction, and makes a motion compensated prediction on the target unit area bidirectionally to generate a predicted image.

摘要翻译： 运动矢量搜索单元确定要通过的反向参考帧的每个运动矢量的双向预测帧的单位面积，并存储关于要传递到通过区域号保持单元的单位区域的信息。 参考矢量预测单元参考通过区域号保持单元，以从运动矢量保持单元获取通过双向预测帧的目标单位区域的反向参考帧的运动矢量，并且确定应用于该参考矢量预测帧的参考矢量 目标单位面积。 运动矢量搜索单元将参考矢量应用于双向预测帧的目标单位区域，通过线性预测确定目标单位区域的向前运动矢量和后向运动矢量，并对目标单位区域进行运动补偿预测 双向生成预测图像。

公开(公告)号：US20070025444A1

公开(公告)日：2007-02-01

申请号：US11494767

申请日：2006-07-28

申请人： Shigeyuki Okada ,  Hideki Yamauchi ,  Yuh Matsuda ,  Mitsuru Suzuki ,  Haruhiko Murata

发明人： Shigeyuki Okada ,  Hideki Yamauchi ,  Yuh Matsuda ,  Mitsuru Suzuki ,  Haruhiko Murata

IPC分类号： H04N11/02 ,  H04N11/04

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。

公开(公告)号：US20060203918A1

公开(公告)日：2006-09-14

申请号：US11436519

申请日：2006-05-19

申请人： Shigeyuki Okada

发明人： Shigeyuki Okada

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

CPC分类号： H04N5/783 ,  H04N9/8042

摘要： When a reverse reproduction is instructed, an MPEG video stream is once decoded and is converted to image video signals by a first display circuit. Thereafter, the image video signals are again recoded by an image input circuit and an MPEG video encoder, so as to be overwritten in a storage area of a hard disk. An MPEG video decoder reads out this recoded data sequence in a reverse time-series manner and decodes it successively. Then the thus decoded data are converted to image video signals by a second display circuit, so as to be displayed on a display.

公开(公告)号：US20060188021A1

公开(公告)日：2006-08-24

申请号：US11360495

申请日：2006-02-24

申请人： Mitsuru Suzuki ,  Shigeyuki Okada

发明人： Mitsuru Suzuki ,  Shigeyuki Okada

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

CPC分类号： H04N19/53 ,  G06T7/207 ,  H04N19/105 ,  H04N19/152 ,  H04N19/433

摘要： A motion vector detecting unit 24 detects a motion vector between an input image and a reference image. A reduced image creation unit 40 reads out pixel data of the reference image from the frame memory, and creates a reduced image at a lower resolution than that of the original reference image. A reduced image holding unit 42 stores a part or all of the reduced image thus created. A computation unit 44 performs matching computation between the input image and the reference image using the reduced images, thereby detecting an approximate motion vector. Subsequently, the computation unit 44 detects a motion vector using the images at the original resolution with reference to the approximate motion vector. When the computation unit 44 detects the motion vector using the reduced images, a part of the reduced image stored in the reduced image holding unit 42 is not newly created, and is read out from the reduced image holding unit 42.

摘要翻译： 运动矢量检测单元24检测输入图像和参考图像之间的运动矢量。 缩小图像创建单元40从帧存储器读出参考图像的像素数据，并以比原始参考图像低的分辨率创建缩小图像。 缩小图像保持单元42存储由此产生的缩小图像的一部分或全部。 计算单元44使用缩小图像执行输入图像和参考图像之间的匹配计算，从而检测近似运动矢量。 随后，计算单元44参照近似运动矢量使用原始分辨率的图像来检测运动矢量。 当计算单元44使用缩小图像检测运动矢量时，不重新创建存储在缩小图像保持单元42中的部分缩小图像，并且从缩小图像保持单元42读出。