公开(公告)号：US07876980B2

公开(公告)日：2011-01-25

申请号：US11271128

申请日：2005-11-10

申请人： Takuma Chiba ,  Kazuo Okamoto ,  Yuji Nagaishi ,  Tatsuro Juri

发明人： Takuma Chiba ,  Kazuo Okamoto ,  Yuji Nagaishi ,  Tatsuro Juri

IPC分类号： G06K9/22 ,  H04N1/04 ,  G06K9/00

CPC分类号： H04N5/23212 ,  H04N5/3454 ,  H04N5/3456 ,  H04N5/347 ,  H04N5/374

摘要： The resolution, frame rate, or both can be improved when imaging moving subjects in an imaging apparatus using a CMOS image sensor. The imaging apparatus has an image sensor having a two-dimensional array of pixels. Each of the pixels includes an element operable to produce an electric charge by photoelectrically converting light from an imaged subject and a part operable to accumulate the produced charge and output an accumulated charge or a signal representing the accumulated charge. The imaging apparatus also has an area control unit operable to define a specified area of the image sensor containing a plurality of pixels and an area density control unit operable to specify a density of pixels read from the specified area defined by the area control unit.

摘要翻译： 当使用CMOS图像传感器对成像设备中的移动物体进行成像时，可以提高分辨率，帧速率或两者。 成像装置具有具有二维像素阵列的图像传感器。 每个像素包括可操作以通过对来自成像对象的光进行光电转换来产生电荷的元件和可操作以累积所产生的电荷并输出累积电荷或表示累积电荷的信号的部分。 成像装置还具有区域控制单元，其可操作以限定包含多个像素的图像传感器的指定区域，以及区域密度控制单元，用于指定从区域控制单元定义的指定区域读取的像素的浓度。

公开(公告)号：US07860160B2

公开(公告)日：2010-12-28

申请号：US11354082

申请日：2006-02-15

申请人： Hiroaki Shimazaki ,  Takashi Masuno ,  Takuma Chiba ,  Kei Tasaka ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo

发明人： Hiroaki Shimazaki ,  Takashi Masuno ,  Takuma Chiba ,  Kei Tasaka ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo

IPC分类号： H04N7/12 ,  H04N9/12 ,  G06K9/46

CPC分类号： H04N19/152 ,  H04N19/61 ,  H04N19/91

摘要： The present invention provides a video encoding device in which a capacity of a binary data storing unit is small, a size of the video encoding device is small, a video signal can be processed in real time, and reduction in quality of images generated from the eventually obtained data can be prevented. The video encoding device according to the present invention includes: a video encoding unit which encodes a video signal; a binarization unit which binarizes an encoded value obtained from the video encoding unit; and an entropy encoding unit which subjects entropy encoding to binary data obtained from the binarization unit. Here, the video encoding unit encodes the video signal based on a characteristic of the binarization performed by the binarization unit, so that an amount of binary data obtained from the binarization unit by binarizing the encoded value that is encoded based on the characteristic is less than an amount of binary data obtained by binarizing an encoded value that is encoded without being based on the characteristic.

摘要翻译： 本发明提供了一种视频编码装置，其中二进制数据存储单元的容量小，视频编码装置的尺寸小，可以实时处理视频信号，并且降低从 可以防止最终获得的数据。 根据本发明的视频编码装置包括：视频编码单元，其对视频信号进行编码; 二值化单元，其将从所述视频编码单元获得的编码值二值化; 以及熵编码单元，其对来自二值化单元的二进制数据进行熵编码。 这里，视频编码单元基于由二值化单元执行的二值化的特性对视频信号进行编码，从而通过二值化基于特性编码的编码值从二值化单元获得的二进制数据量小于 通过对编码的值进行二值化而获得的二进制数据量，而不是基于特征。

公开(公告)号：US07439880B2

公开(公告)日：2008-10-21

申请号：US11822971

申请日：2007-07-11

申请人： Yukinaga Seki ,  Takuma Chiba ,  Tatsuro Juri ,  Kenjiro Tsuda

发明人： Yukinaga Seki ,  Takuma Chiba ,  Tatsuro Juri ,  Kenjiro Tsuda

IPC分类号： H03M7/34

CPC分类号： H04N19/174 ,  H04N19/12 ,  H04N19/13 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： An image coding device is provided that includes an image coding unit which codes image data, a binarization unit which binarizes the coded data, an intermediate buffer, an accumulated amount measuring unit which measures an amount of data in the intermediate buffer, and an I_PCM judging unit which compares the measured amount of data with a threshold. A buffer input selection unit is also provided which causes the intermediate buffer to accumulate next binary data when the amount of the data does not exceed the threshold and causes the intermediate buffer to accumulate next I_PCM data when the amount of the data exceeds the threshold. In addition, the device includes an arithmetic coding unit that arithmetically codes the binary data accumulated in the intermediate buffer and an output selection unit outputs the arithmetically coded data or the I_PCM data.

摘要翻译： 提供一种图像编码装置，其包括对图像数据进行编码的图像编码单元，对编码数据进行二值化的二值化单元，中间缓冲器，测量中间缓冲器中的数据量的累积量测量单元，以及I_PCM判断 将测量的数据量与阈值进行比较的单元。 还提供缓冲器输入选择单元，当数据量不超过阈值时，使中间缓冲器累积下一个二进制数据，并且当数据量超过阈值时使中间缓冲器累积下一个I_PCM数据。 此外，该装置包括对累积在中间缓冲器中的二进制数据进行算术编码的算术编码单元，输出选择单元输出算术编码数据或I_PCM数据。

公开(公告)号：US07990424B2

公开(公告)日：2011-08-02

申请号：US11993942

申请日：2006-07-07

申请人： Takuma Chiba ,  Kazuo Okamoto ,  Yuji Nagaishi ,  Tatsuro Juri

发明人： Takuma Chiba ,  Kazuo Okamoto ,  Yuji Nagaishi ,  Tatsuro Juri

IPC分类号： H04N5/225 ,  H04N5/228

CPC分类号： H04N5/772 ,  H04N5/3458 ,  H04N9/045 ,  H04N9/7921

摘要： A device is provided for taking high resolution still pictures while recording video without pausing video recording. Plural channels are provided for reaching pixel values from a CMOS sensor, and the output of each channel is input to a corresponding A/D conversion circuit. The channels are configured so that the pixels that are added together are read simultaneously. The data added by the pixel value adder is used as the video data for video recording. When a still picture is captured during video recording, the pixel data is stored in memory with capacity to store one frame, and is sequentially output from the image sensor as the still picture data.

摘要翻译： 提供了一种用于在录制视频时拍摄高分辨率静态图片而不停止视频录制的设备。 提供多个通道用于从CMOS传感器达到像素值，并且每个通道的输出被输入到相应的A / D转换电路。 通道被配置为使得被加在一起的像素被同时读取。 将由像素值加法器添加的数据用作用于视频记录的视频数据。 当在视频记录期间捕获静止图像时，像素数据被存储在具有存储一帧的能力的存储器中，并且作为静止图像数据从图像传感器顺序地输出。

公开(公告)号：US20100254682A1

公开(公告)日：2010-10-07

申请号：US12746222

申请日：2008-12-03

申请人： Takashi Masuno ,  Tatsuro Juri ,  Kenjiro Tsuda ,  Hiroaki Shimazaki ,  Katsuo Saigo ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

发明人： Takashi Masuno ,  Tatsuro Juri ,  Kenjiro Tsuda ,  Hiroaki Shimazaki ,  Katsuo Saigo ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

IPC分类号： H04N7/26

CPC分类号： H04N9/8042 ,  H04N5/772 ,  H04N19/114 ,  H04N19/162 ,  H04N19/423 ,  H04N19/61

摘要： An image coder with a pre-record function includes a coding unit (11) which codes a motion-picture signal to generate closed GOPs or open GOPs, a buffer unit (14) in which at least one of the GOPs generated by the coding unit (11) is stored in a first-in first-out manner, a user I/F unit (12a) which receives instructions to start or stop capturing a moving picture, and a recording control unit (12b) which, before the user I/F unit (12a) receives an instruction to start capturing a moving picture, establishes a non-recording status and causes the coding unit (11) to start and continue coding the motion-picture signal so as to generate a GOP sequence including a closed GOP, and when the user I/F unit (12a) receives the instruction, switches from the non-recording status to a non-recording status and causes the coding unit (11) to generate a GOP sequence including only open GOPs.

摘要翻译： 具有预记录功能的图像编码器包括对运动图像信号进行编码以产生闭合GOP或开放GOP的编码单元（11），其中由编码单元生成的至少一个GOP （11）以先进先出的方式存储，接收用于开始或停止拍摄运动图像的指令的用户I / F单元（12a），以及在用户I之前的记录控制单元（12b） / F单元（12a）接收开始捕获运动图像的指令，建立非记录状态，并且使编码单元（11）开始并继续编码运动图像信号，以便生成包括闭合的GOP序列 GOP，并且当用户I / F单元（12a）接收到指令时，从非记录状态切换到非记录状态，并使编码单元（11）产生仅包括开放GOP的GOP序列。

公开(公告)号：US20090189996A1

公开(公告)日：2009-07-30

申请号：US12358480

申请日：2009-01-23

申请人： Hiroaki Shimazaki ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Takashi Masuno ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

发明人： Hiroaki Shimazaki ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Takashi Masuno ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

IPC分类号： H04N5/228 ,  H04N7/26

CPC分类号： G11B27/105 ,  H04N21/2389 ,  H04N21/4385

摘要： An image recording device includes: a reference clock generation generating a reference clock; a first compression unit generating first compressed image data by compressing a first picture that is included in pictures in the captured image and that is equivalent to image captured at the first frame rate; a second compression unit generating second compressed image data by compressing a second picture that is included in the pictures in the captured image except the first picture; a first timestamp generation unit generating a first timestamp indicating a time for presentation of the first picture with reference to the reference clock; a second timestamp generation unit generating a second timestamp indicating a time for presentation of the second picture with reference to the reference clock; a first assignment unit assigning the first timestamp to the first compressed image data; a second assignment unit assigning the second timestamp to the second compressed image data; and a recording unit recording, to the recording medium, (i) the first compressed image data assigned with the first timestamp and (ii) the second compressed image data assigned with the second timestamp.

摘要翻译： 图像记录装置包括：产生参考时钟的参考时钟产生; 第一压缩单元，通过压缩包含在拍摄图像中的图像中的与在第一帧速率捕获的图像相当的第一图像来生成第一压缩图像数据; 第二压缩单元，通过压缩除了第一图像之外的捕获图像中的图像中包括的第二图像来生成第二压缩图像数据; 第一时间戳产生单元，其参考参考时钟产生指示用于呈现第一图像的时间的第一时间戳; 第二时间戳生成单元，生成指示参考所述参考时钟显示所述第二图像的时间的第二时间戳; 第一分配单元，将第一时间戳分配给第一压缩图像数据; 第二分配单元，将第二时间戳分配给第二压缩图像数据; 以及记录单元向记录介质记录（i）分配有第一时间戳的第一压缩图像数据和（ii）分配有第二时间戳的第二压缩图像数据。

公开(公告)号：US20070092150A1

公开(公告)日：2007-04-26

申请号：US11582440

申请日：2006-10-18

申请人： Takuma Chiba ,  Hiroaki Shimazaki ,  Takashi Masuno ,  Kei Tasaka ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Keiichi Ishida

发明人： Takuma Chiba ,  Hiroaki Shimazaki ,  Takashi Masuno ,  Kei Tasaka ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Keiichi Ishida

IPC分类号： G06K9/36

CPC分类号： H03M7/4006 ,  H04N19/184 ,  H04N19/517 ,  H04N19/61 ,  H04N19/91

摘要： The coding apparatus according to the present invention is a coding apparatus which codes data regarding a moving picture, and includes: a DCT coefficient advanced-coding unit which performs advanced-coding on multivalued data representing a quantized DCT coefficient or a motion vector, so as to reduce the bit length of binary data obtained by binarizing the multivalued data; an advanced-coded coefficient/binary coefficient conversion unit which converts the advanced-coded data obtained by the DCT coefficient advanced-coding unit into the binary data; and an arithmetic coding unit which performs arithmetic coding on the binary data obtained by the advanced-coded coefficient/binary coefficient conversion unit.

摘要翻译： 根据本发明的编码装置是编码关于运动图像的数据的编码装置，包括：对表示量化的DCT系数或运动矢量的多值数据执行高级编码的DCT系数预测编码单元， 以减少通过二值化多值数据而获得的二进制数据的位长度; 高级编码系数/二进制系数转换单元，其将由DCT系数预测编码单元获得的高级编码数据转换为二进制数据; 以及算术编码单元，对由先进编码系数/二进制系数转换单元获得的二进制数据执行算术编码。

公开(公告)号：US08675979B2

公开(公告)日：2014-03-18

申请号：US12937563

申请日：2009-12-11

申请人： Takuma Chiba ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Yuki Kobayashi ,  Takashi Masuno ,  Katsuo Saigo ,  Yukinaga Seki ,  Hiroaki Shimazaki

发明人： Takuma Chiba ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Yuki Kobayashi ,  Takashi Masuno ,  Katsuo Saigo ,  Yukinaga Seki ,  Hiroaki Shimazaki

IPC分类号： G06K9/46

CPC分类号： H04N19/40 ,  H04N19/107 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/61 ,  H04N19/86

摘要： A transcoder reduces the processing amount when a coded stream to which at least intra prediction is applied is transcoded into a coded stream to which intra prediction and inter prediction are applied. The transcoder converts a first coded stream to at least part of which intra prediction is applied, into a second coded stream to which intra prediction and inter prediction are applied. The transcoder includes a decoding unit that decodes the first coded stream to generate decoded image data; a prediction mode obtaining unit that obtains a prediction mode of intra prediction applied in decoding; and a coding unit that codes the decoded image data by applying the intra prediction or inter prediction to generate the second coded stream. A control unit controls causes the coding unit to use the prediction mode obtained by the prediction mode obtaining unit when the coding unit applies intra prediction.

摘要翻译： 当至少应用帧内预测的编码流被代码转换为应用帧内预测和帧间预测的编码流时，代码转换器减少处理量。 代码转换器将第一编码流转换为应用了帧内预测的至少一部分，被应用到帧内预测和帧间预测中的第二编码流中。 代码转换器包括解码单元，其对第一编码流进行解码以生成解码图像数据; 预测模式获取单元，其获得在解码中应用的帧内预测的预测模式; 以及编码单元，其通过应用帧内预测或帧间预测来生成第二编码流来对解码图像数据进行编码。 当编码单元应用帧内预测时，控制单元控制使得编码单元使用由预测模式获得单元获得的预测模式。

公开(公告)号：US08406306B2

公开(公告)日：2013-03-26

申请号：US12717367

申请日：2010-03-04

申请人： Tatsuro Juri ,  Takuma Chiba

发明人： Tatsuro Juri ,  Takuma Chiba

IPC分类号： H04B1/66

CPC分类号： H04N19/423 ,  H04N19/44 ,  H04N19/51

摘要： An image decoding apparatus that performs decoding using motion compensation includes: a reference area specifying unit that specifies, prior to decoding performed on a block-by-block basis, a reference area that is an existing range of reference pixels in a reference picture based on a block on which motion compensation is to be performed; a decoded pixel memory which stores decoded pixel data; a reference pixel buffer that holds reference pixel data; a reference-pixel-reading control unit that copies pixel data of an area including the reference area specified by said reference area specifying unit, from said decoded pixel memory into said reference pixel buffer; a motion compensation unit that generates interpolation pixel data by performing the motion compensation using reference pixel data copied into said reference pixel buffer; and a pixel value decoding unit that generates decoded pixel data using the interpolation pixel data.

摘要翻译： 使用运动补偿执行解码的图像解码装置包括：参考区域指定单元，其在逐块执行的解码之前，基于基准区域指定参考图像中的参考像素的现有范围的参考区域 要执行运动补偿的块; 解码像素存储器，其存储解码的像素数据; 保持参考像素数据的参考像素缓冲器; 参考像素读取控制单元，将包括由所述参考区域指定单元指定的参考区域的区域的像素数据从所述解码像素存储器复制到所述参考像素缓冲器中; 运动补偿单元，其通过使用复制到所述参考像素缓冲器中的参考像素数据执行运动补偿来生成内插像素数据; 以及像素值解码单元，其使用所述插值像素数据生成解码像素数据。

公开(公告)号：US08018502B2

公开(公告)日：2011-09-13

申请号：US12358480

申请日：2009-01-23

申请人： Hiroaki Shimazaki ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Takashi Masuno ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

发明人： Hiroaki Shimazaki ,  Kenjiro Tsuda ,  Tatsuro Juri ,  Katsuo Saigo ,  Takashi Masuno ,  Yuki Kobayashi ,  Takuma Chiba ,  Yukinaga Seki

IPC分类号： H04N5/76 ,  H04N5/222

CPC分类号： G11B27/105 ,  H04N21/2389 ,  H04N21/4385

摘要： An image recording device includes: a reference clock generation generating a reference clock; a first compression unit generating first compressed image data by compressing a first picture that is included in pictures in the captured image and that is equivalent to image captured at the first frame rate; a second compression unit generating second compressed image data by compressing a second picture that is included in the pictures in the captured image except the first picture; a first timestamp generation unit generating a first timestamp indicating a time for presentation of the first picture with reference to the reference clock; a second timestamp generation unit generating a second timestamp indicating a time for presentation of the second picture with reference to the reference clock; a first assignment unit assigning the first timestamp to the first compressed image data; a second assignment unit assigning the second timestamp to the second compressed image data; and a recording unit recording, to the recording medium, (i) the first compressed image data assigned with the first timestamp and (ii) the second compressed image data assigned with the second timestamp.

摘要翻译： 图像记录装置包括：产生参考时钟的参考时钟产生; 第一压缩单元，通过压缩包含在拍摄图像中的图像中的与在第一帧速率捕获的图像相当的第一图像来生成第一压缩图像数据; 第二压缩单元，通过压缩除了第一图像之外的捕获图像中的图像中包括的第二图像来生成第二压缩图像数据; 第一时间戳产生单元，其参考参考时钟产生指示用于呈现第一图像的时间的第一时间戳; 第二时间戳生成单元，生成指示参考所述参考时钟显示所述第二图像的时间的第二时间戳; 第一分配单元，将第一时间戳分配给第一压缩图像数据; 第二分配单元，将第二时间戳分配给第二压缩图像数据; 以及记录单元向记录介质记录（i）分配有第一时间戳的第一压缩图像数据和（ii）分配有第二时间戳的第二压缩图像数据。