公开(公告)号：US08204319B2

公开(公告)日：2012-06-19

申请号：US12428761

申请日：2009-04-23

申请人： Toshiyuki Katsumoto ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

发明人： Toshiyuki Katsumoto ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

IPC分类号： G06K9/46

CPC分类号： H04N13/106 ,  H04N13/10 ,  H04N13/161 ,  H04N13/204 ,  H04N13/239 ,  H04N13/243 ,  H04N13/271

摘要： An image compression apparatus includes: first and second imaging sections for capturing an image of a subject to generate first and second image signals, respectively; first and second encoding sections for encoding the first and second image signals to generate first and second image data, respectively; first and second distance measuring sections for measuring a distance to the subject for each of image blocks, at the same time as the first and second imaging sections perform image capturing, to generate first and second distance information, respectively; first and second multiplexing sections for generating first and second multiplexed data on the basis of the first and second image data and the distance, respectively, by respectively multiplexing the first and second image data and first and second distance data, which are generated on the basis of the first and second distance information and indicate the distance to the subject for each of predefined pixel blocks in the first and second image data, respectively; and a compression processing section for reducing amounts of the first and second multiplexed data to generate compressed data. The compression processing section generates the compressed data by extracting long-distance blocks in the first and second image data on the basis of the first and second distance data, respectively, calculating a differential between the long-distance blocks in the first and second multiplexed data, and deleting the long-distance blocks in the first or second multiplexed data which are identical to their counterparts in the other multiplexed data.

摘要翻译： 一种图像压缩装置包括：第一和第二成像部分，分别用于捕获对象的图像以分别产生第一和第二图像信号; 第一和第二编码部分，用于分别编码第一和第二图像信号以产生第一和第二图像数据; 第一和第二距离测量部分，用于在与第一和第二成像部分进行图像捕获的同时，分别测量与每个图像块对象的距离，分别产生第一和第二距离信息; 第一和第二复用部分，用于分别基于第一和第二图像数据和距离分别复用第一和第二图像数据以及基于第一和第二距离数据生成的第一和第二距离数据，生成第一和第二复用数据 并且分别指示第一和第二图像数据中每个预定义像素块到被摄体的距离; 以及压缩处理部，用于减少第一和第二多路复用数据的量以产生压缩数据。 压缩处理部分分别通过基于第一和第二距离数据提取第一和第二图像数据中的长距离块来生成压缩数据，计算第一和第二多路复用数据中的长距离块之间的差分 并删除第一或第二复用数据中与其他多路复用数据中的对应物相同的长距离块。

公开(公告)号：US20090304294A1

公开(公告)日：2009-12-10

申请号：US12429669

申请日：2009-04-24

申请人： Toshiyuki KATSUMOTO ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

发明人： Toshiyuki KATSUMOTO ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

IPC分类号： G06K9/36

CPC分类号： H04N19/597 ,  H04N13/128 ,  H04N13/194 ,  H04N13/261 ,  H04N2213/003

摘要： An image encoding device includes a single image pickup unit generating image data by shooting a subject, an image compression unit generating digital image data by encoding the image data, a distance measuring unit measuring a distance to the subject during the shooting, and a multiplexing unit generating multiplexed data based on the digital image data and the measured distance by multiplexing distance data indicating the distance to a subject of each of given pixel blocks of the digital image data onto the digital image data.

摘要翻译： 图像编码装置包括通过拍摄对象来生成图像数据的单个图像拾取单元，通过编码图像数据生成数字图像数据的图像压缩单元，在拍摄期间测量到被摄体的距离的距离测量单元，以及多路复用单元 通过将指示与数字图像数据的每个给定像素块的对象的距离的距离数据复用到数字图像数据上，基于数字图像数据和测量距离生成多路复用数据。

公开(公告)号：US08369630B2

公开(公告)日：2013-02-05

申请号：US12429669

申请日：2009-04-24

申请人： Toshiyuki Katsumoto ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

发明人： Toshiyuki Katsumoto ,  Nobuhiro Igi ,  Hiromasa Watanabe ,  Yukio Yanagihara

IPC分类号： G06K9/36

CPC分类号： H04N19/597 ,  H04N13/128 ,  H04N13/194 ,  H04N13/261 ,  H04N2213/003

摘要： An image encoding device includes a single image pickup unit generating image data by shooting a subject, an image compression unit generating digital image data by encoding the image data, a distance measuring unit measuring a distance to the subject during the shooting, and a multiplexing unit generating multiplexed data based on the digital image data and the measured distance by multiplexing distance data indicating the distance to a subject of each of given pixel blocks of the digital image data onto the digital image data.

摘要翻译： 图像编码装置包括通过拍摄对象来生成图像数据的单个图像拾取单元，通过编码图像数据生成数字图像数据的图像压缩单元，在拍摄期间测量到被摄体的距离的距离测量单元，以及多路复用单元 通过将指示与数字图像数据的每个给定像素块的对象的距离的距离数据复用到数字图像数据上，基于数字图像数据和测量距离生成多路复用数据。

公开(公告)号：US07394851B2

公开(公告)日：2008-07-01

申请号：US10861748

申请日：2004-06-04

申请人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

发明人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

IPC分类号： H04N7/12 ,  G06K9/36

CPC分类号： H04N21/44016 ,  G11B27/034 ,  G11B27/036 ,  G11B2220/20 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N19/115 ,  H04N19/124 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/196 ,  H04N19/197 ,  H04N19/40 ,  H04N19/61 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/23655 ,  H04N21/44004

摘要： An encoder to encode video streams representing a moving picture is provided whose video encoder calculates a bit storage quantity an STD video buffer should have when input of a stream ending with a first picture to the STD video buffer ends, calculates an initial bit storage quantity of a second picture of a stream concatenated to the end of the first picture and starting with the second picture, in a VBV buffer, based on the calculated bit storage quantity of the STD buffer, and encodes the stream based on the bit storage quantity. The video encoder further calculates a bit storage quantity of the STD video buffer, for decoding a picture of the stream in the STD video buffer, calculates, based on the calculated bit storage quantity, a bit storage quantity the VBV buffer should have for ending decoding of a fourth picture of a second stream concatenated to the beginning of a third picture and ending with the fourth picture, and encodes the stream based on the calculated bit storage quantity. With such encoding, a part of video streams can be re-coded without referencing to information indicative of an initial status of a video buffer when editing the video streams.

摘要翻译： 提供一种用于对表示运动图像的视频流进行编码的编码器，其视频编码器计算STD视频缓冲器在以STD视频缓冲器结束的流的输入结束时应当具有的位存储量，计算出初始位存储量 基于所计算的STD缓冲器的比特存储量，在VBV缓冲器中连接到第一图像的结尾并以第二图像开始的流的第二图像，并且基于比特存储量对流进行编码。 视频编码器进一步计算STD视频缓冲器的比特存储量，用于对STD视频缓冲器中的流的图像进行解码，基于计算的比特存储量计算VBV缓冲器应该具有的用于结束解码的比特存储量 连接到第三图像的开始并以第四图像结束的第二流的第四图像，并且基于所计算的比特存储量对流进行编码。 通过这样的编码，当编辑视频流时，可以对视频流的一部分进行重新编码而不参考指示视频缓冲器的初始状态的信息。

公开(公告)号：US20050276334A1

公开(公告)日：2005-12-15

申请号：US11211301

申请日：2005-08-25

申请人： Nobuhiro Igi ,  Motoki Kato

发明人： Nobuhiro Igi ,  Motoki Kato

IPC分类号： H04N5/92 ,  H03M7/30 ,  H04N7/24 ,  H04N19/00 ,  H04N19/102 ,  H04N19/115 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/147 ,  H04N19/177 ,  H04N19/194 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/61 ,  H04N19/625 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91 ,  H04N11/04

CPC分类号： H04N19/179 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/172

摘要： An input video signal is coded by a 1-pass type coding system highly efficiently by taking the proportions of the components of the input image. The coding difficulty level computation circuit 33 determines the coding difficulty level d of the input moving image signal S1 and sends it to the amount of allocated bits computation circuit/controller 34. The amount of allocated bits computation circuit/controller 34 determines a reference value of amount of allocated coding bits on the basis of the coding difficulty level d and, when shifting the reference value to the actual amount of allocated coding bits b_x, it stores part of the sum of the amounts of allocated bits a per unit time for a certain period of time as virtual buffer in advance and the actual reference value of the amount of allocated coding bits is obtained by dividing the sum of the amounts of allocated coding bits per unit time less the part stored as virtual buffer by said period of time. As long as the virtual buffer is positive, the provision of an amount of bits exceeding said reference value is permitted.

摘要翻译： 通过采用输入图像的分量的比例，通过1遍式编码系统高效地对输入视频信号进行编码。 编码难度等级计算电路33确定输入的运动图像信号S1的编码难度级d，并将其发送到分配的比特计算电路/控制器34的量。 分配比特计算电路/控制器34的数量基于编码难度级d确定分配的编码比特量的参考值，并且当将参考值移位到分配的编码比特b_x的实际量时，它存储部分 通过将每单位分配的编码比特量的和除以每一单位时间内的分配比特数a的总和，作为预先提供的虚拟缓冲器和分配的编码比特量的实际参考值， 在所述时间段内减少存储为虚拟缓冲器的部分。 只要虚拟缓冲器为正，则允许提供超过所述参考值的位数。

公开(公告)号：US06825886B2

公开(公告)日：2004-11-30

申请号：US10106290

申请日：2002-03-25

申请人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

发明人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

IPC分类号： H04N718

CPC分类号： H04N9/8042 ,  H04N5/85 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

摘要： A picture signal processing method and apparatus in which the block distortion as well as the mosquito noise produced on encoding/decoding a picture is to be suppressed. The picture signal processing apparatus includes a filter for filtering a picture, an encoder 5 for block-encoding the picture, a decoder 13 for decoding an encoded picture from the encoder 5 and a noise reducing unit 14 for reducing at least the block distortion of a picture decoded by the decoding unit 13 to reduce the noise otherwise produced on encoding/decoding the picture.

摘要翻译： 抑制图像编码/解码时产生的块失真以及产生的蚊式噪声的图像信号处理方法和装置。 图像信号处理装置包括用于对图像进行滤波的滤波器，用于对图像进行块编码的编码器5，用于从编码器5解码编码图像的解码器13和用于至少减少图像信号的块失真的噪声降低单元14 由解码单元13解码的图像，以减少在编码/解码图像时产生的噪声。

公开(公告)号：US06434275B1

公开(公告)日：2002-08-13

申请号：US09230465

申请日：1999-06-07

申请人： Kyoko Fukuda ,  Hiroshi Kobayashi ,  Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

发明人： Kyoko Fukuda ,  Hiroshi Kobayashi ,  Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

IPC分类号： G06K936

CPC分类号： H04N19/40 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86

摘要： An apparatus incorporates encoding-degree-of-difficulty detecting means 3 for detecting a parameter indicating an encoding degree of difficulty from supplied image data; parameter calculating means 4 for calculating a parameter required to determine block distortion from supplied image data; block distortion determining means 6 for determining block distortion in accordance with a result of detection of the parameter indicating the encoding degree of difficulty and a result of the calculation for obtaining the parameter; correction-value calculating means 7 for calculating a correction value for reducing block distortion; and means for subjecting supplied image data to a correction using a correction value corresponding to a result of the determination of block distortion so as to produce an output.

摘要翻译： 一种装置包括难以编码的检测装置3，用于从提供的图像数据中检测指示编码难度的参数; 参数计算装置4，用于从提供的图像数据计算确定块失真所需的参数; 块失真确定装置6，用于根据指示编码难易度的参数的检测结果和用于获得参数的计算结果来确定块失真; 校正值计算装置7，用于计算减小块失真的校正值; 以及用于使用与块失真的确定结果对应的校正值对所提供的图像数据进行校正以产生输出的装置。

公开(公告)号：US07593463B2

公开(公告)日：2009-09-22

申请号：US11211301

申请日：2005-08-25

申请人： Nobuhiro Igi ,  Motoki Kato

发明人： Nobuhiro Igi ,  Motoki Kato

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/179 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/172

摘要： An input video signal is coded by a 1-pass type coding system highly efficiently by taking the proportions of the components of the input image. The coding difficulty level computation circuit 33 determines the coding difficulty level d of the input moving image signal S1 and sends it to the amount of allocated bits computation circuit/controller 34. The amount of allocated bits computation circuit/controller 34 determines a reference value of amount of allocated coding bits on the basis of the coding difficulty level d and, when shifting the reference value to the actual amount of allocated coding bits b_x, it stores part of the sum of the amounts of allocated bits a per unit time for a certain period of time as virtual buffer in advance and the actual reference value of the amount of allocated coding bits is obtained by dividing the sum of the amounts of allocated coding bits per unit time less the part stored as virtual buffer by said period of time. As long as the virtual buffer is positive, the provision of an amount of bits exceeding said reference value is permitted.

摘要翻译： 通过采用输入图像的分量的比例，通过1遍式编码系统高效地对输入视频信号进行编码。 编码难度等级计算电路33确定输入的运动图像信号S1的编码难度等级d，并将其发送到分配的比特计算电路/控制器34的量。分配比特计算电路/控制器34的量确定 根据编码难度等级d分配的编码比特数量，并且当将参考值移位到分配的编码比特b_x的实际量时，它将某一个单位时间内的分配比特量a的总和的一部分存储 作为预先提供的虚拟缓冲器的时间段，并且通过将每单位时间内分配的编码比特量的和除以存储为虚拟缓冲器的部分减去所述时间段来获得所分配的编码比特量的实际参考值。 只要虚拟缓冲器为正，则允许提供超过所述参考值的位数。

公开(公告)号：US06574274B2

公开(公告)日：2003-06-03

申请号：US09256753

申请日：1999-02-24

申请人： Koji Obata ,  Nobuhiro Igi ,  Motoki Kato

发明人： Koji Obata ,  Nobuhiro Igi ,  Motoki Kato

IPC分类号： H04B166

CPC分类号： H04N19/577 ,  H04N19/114 ,  H04N19/15 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/40 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61

摘要： A picture signal processing system is disclosed, that comprises a decoder for generating the number of encoded bits and/or an average quantizing scale as representative value(s) of encoding parameters of an input encoded picture signal, decoding the input encoded picture signal, generating the decoded picture signal, and outputting the encoding parameters along with the generated decoded picture signal, and an encoder for encoding the decoded picture signal with the encoding parameters.

摘要翻译： 公开了一种图像信号处理系统，其包括用于产生编码比特数和/或平均量化比例作为编码输入编码图像信号编码参数的代表值的解码器，对输入编码图像信号进行解码，产生 解码图像信号，并且输出编码参数以及所生成的解码图像信号，以及编码器，用编码参数对解码的图像信号进行编码。

公开(公告)号：US06414999B1

公开(公告)日：2002-07-02

申请号：US09315668

申请日：1999-05-20

申请人： Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

发明人： Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

IPC分类号： H04B166

CPC分类号： G11B27/036 ,  G06T9/007 ,  G11B27/034 ,  G11B2220/20

摘要： An edit point of an earlier GOP1 is placed after an I picture I22. In addition, the edit point is not placed immediately after an I or P picture. Thus, the GOP1 is decoded. A stream placed after the edit point (a P picture and later pictures) is discarded. B pictures B26 and B27 placed after a P picture P25 are re-encoded with a forward moving vector Fw. The remaining pictures other than B pictures B26 and B27 are re-encoded with encoding information used in a decoding process. Since an edit point of a later GOP2 is not placed before the I picture I2, the GOP2 is decoded. A stream placed before the edit point (pictures B0 to P5) is discarded. The first P picture P8 is changed to an I picture. Thereafter, the re-encoding process is performed. The P picture P8 changed from the I picture is used as a predictive reference picture. With the P picture P8, a backward moving vector Bk is obtained. With only the moving vector Bk, the B pictures B6 and B7 placed before the P picture P8 are re-encoded.

摘要翻译： 较早GOP1的编辑点放置在I图片I22之后。 另外，编辑点不会立即放置在I或P图像之后。 因此，GOP1被解码。 放置在编辑点之后的流（P图片和更晚的图片）被丢弃。 放置在P图像P25之后的B图像B26和B27用前向移动矢量Fw重新编码。 除了B图像B26和B27之外的其余图像被用解码处理中使用的编码信息重新编码。 由于稍后GOP2的编辑点未放置在I图像I2之前，因此对GOP2进行解码。 放置在编辑点之前的流（图B0至P5）被丢弃。 第一个P图像P8被更改为I图像。 此后，执行重新编码处理。 从I图像改变的P图像P8用作预测参考图像。 利用P图像P8，获得向后移动矢量Bk。 只有移动矢量Bk，放置在P图像P8之前的B图像B6和B7被重新编码。