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1. 发明申请

US20070160135A1 Multi-view video coding method and apparatus 审中-公开
标题翻译：多视点视频编码方法及装置
公开(公告)号：US20070160135A1
公开(公告)日：2007-07-12
申请号：US11638462
申请日：2006-12-14
申请人： Akio Ishikawa , Ryoichi Kawada , Atsushi Koike
发明人： Akio Ishikawa , Ryoichi Kawada , Atsushi Koike
IPC分类号： H04N11/04 , H04N7/18
CPC分类号： H04N7/181 , H04N5/247 , H04N19/50 , H04N19/597
摘要： A multi-view video coding method comprises the steps of: collecting position information of the video cameras, determining one video camera as a base video camera among the video cameras, collecting sequences of synchronism from the video cameras, independently coding a sequence of the base video camera, predictively coding a sequence of a video camera adjacent to the video camera of a previously coded sequence, in reference to the previously coded sequence, repeating the predictive coding step for sequence of an adjacent video camera, till sequences of all video cameras are coded.
摘要翻译：多视点视频编码方法包括以下步骤：收集摄像机的位置信息，在摄像机中确定一个摄像机作为基本摄像机，收集来自摄像机的同步序列，独立编码基站的序列视频摄像机，参照先前编码的序列预测编码与摄像机相邻的摄像机的序列，重复相邻摄像机序列的预测编码步骤，直到所有摄像机的序列为编码。

2. 发明授权

US08189036B2 Concealed regions complementing system of free viewpoint video images 有权
标题翻译：隐藏区域补充免费观点视频图像系统
公开(公告)号：US08189036B2
公开(公告)日：2012-05-29
申请号：US12630191
申请日：2009-12-03
申请人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
发明人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
IPC分类号： H04N13/04 , H04N13/00
CPC分类号： G06T15/20 , H04N13/111
摘要： A sender produces a background video image 4 from a reference video image 1 and a depth map 3 and synthesizes the background video image 4 in a background buffer 5. A projection converting matrix 6 for synthesizing is calculated. A receiver receives the reference video image 1, the depth map 3 and the projection converting matrix 6. The receiver produces a free viewpoint video image 11 and a background video image 12. The background buffer 13 is dynamically renewed. The free viewpoint video image 11 and the image in the background buffer 13 are synthesized with each other, and the background video image in the concealed regions in the free viewpoint video image are complemented to obtain the complemented image 14.
摘要翻译：发送者从参考视频图像1和深度图3生成背景视频图像4，并在背景缓冲器5中合成背景视频图像4.计算用于合成的投影转换矩阵6。接收器接收参考视频图像1，深度图3和投影转换矩阵6.接收器产生空闲视点视频图像11和背景视频图像12.背景缓冲器13被动态地更新。自由视点图像11和背景缓冲器13中的图像彼此合成，并且对自由视点视频图像中的隐藏区域中的背景视频图像进行补码以获得补码图像14。

3. 发明授权

US08134598B2 Picture quality monitoring apparatus 失效
标题翻译：图像质量监测仪
公开(公告)号：US08134598B2
公开(公告)日：2012-03-13
申请号：US11712428
申请日：2007-03-01
申请人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
发明人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
IPC分类号： H04N17/00 , H04N17/02 , H04N7/173
CPC分类号： H04N17/02
摘要： Picture having a band of 6 MHz is distributed to the set-top box (STB) 14 via the compression encoder 11, the distribution server 12, and the network 13. The low-pass filter 151 in the picture quality monitoring apparatus 15 removes high-frequency components of an inputted digital signal and inputs luminance signal, the band of which is limited to 4 MHz, into the PSNR calculator 153. The Y/C separator 152 separates a luminance signal from NTSC analog composite signal, which are sent out from the set-top box 14. The separated luminance signal has a band of 4 MHz. The PSNR calculator 153 calculates PSNR between the luminance signal from the low-pass filter 151 and the luminance signal from the Y/C separator 152.
摘要翻译：具有6MHz的频带的图像经由压缩编码器11，分发服务器12和网络13分配到机顶盒（STB）14。图像质量监视装置15中的低通滤波器151去除高输入数字信号的频率分量，并将其频带限制为4MHz的亮度信号输入到PSNR计算器153中.Y / C分离器152将从NTSC模拟复合信号中分离出的亮度信号从分离的亮度信号具有4MHz的频带。 PSNR计算器153计算来自低通滤波器151的亮度信号和来自Y / C分离器152的亮度信号之间的PSNR。

4. 发明申请

US20050041737A1 Concealed regions complementing system of free viewpoint video images 失效
标题翻译：隐藏区域补充免费观点视频图像系统
公开(公告)号：US20050041737A1
公开(公告)日：2005-02-24
申请号：US10898166
申请日：2004-07-26
申请人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
发明人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
IPC分类号： G06T15/20 , H04N7/12 , H04N13/00
CPC分类号： G06T15/20 , H04N13/111
摘要： A sender produces a background video image 4 from a reference video image 1 and a depth map 3 and synthesizes the background video image 4 in a background buffer 5. A projection converting matrix 6 for synthesizing is calculated. A receiver receives the reference video image 1, the depth map 3 and the projection converting matrix 6. The receiver produces a free viewpoint video image 11 and a background video image 12. The background buffer 13 is dynamically renewed. The free viewpoint video image 11 and the image in the background buffer 13 are synthesized with each other, and the background video image in the concealed regions in the free viewpoint video image are complemented to obtain the complemented image 14.
摘要翻译：发送者从参考视频图像1和深度图3生成背景视频图像4，并在背景缓冲器5中合成背景视频图像4.计算用于合成的投影转换矩阵6。接收器接收参考视频图像1，深度图3和投影转换矩阵6.接收器产生空闲视点视频图像11和背景视频图像12.背景缓冲器13被动态地更新。自由视点图像11和背景缓冲器13中的图像彼此合成，并且对自由视点视频图像中的隐藏区域中的背景视频图像进行补码以获得补码图像14。

5. 发明授权

US07738664B2 Apparatus for fault detection for parallelly transmitted audio signals and apparatus for delay difference detection and adjustment for parallelly transmitted audio signals 失效
标题翻译：用于并行发送音频信号的故障检测装置和用于并行传输音频信号的延迟差检测和调整装置
公开(公告)号：US07738664B2
公开(公告)日：2010-06-15
申请号：US10957574
申请日：2004-10-05
申请人： Ryoichi Kawada , Atsushi Koike , Masahiro Wada , Shuichi Matsumoto
发明人： Ryoichi Kawada , Atsushi Koike , Masahiro Wada , Shuichi Matsumoto
IPC分类号： H04B3/00
CPC分类号： H04H20/12 , H04H20/22 , H04N5/04 , H04N5/60 , H04N21/439 , H04N21/44209
摘要： Characteristic amounts in each small region of audio signals transmitted in the working system and the standby system are extracted by characteristic amount calculators 6-1, 6-2. A characteristic amount comparator 7 compares the characteristic amounts and judges occurrence of a fault. Characteristic amount difference calculators 9-1, 9-2, ∥D∥ comparator 10, and faulty system judging unit 11 judges the system having a fault. Majority decision processor 12 and significance judging unit 13 enhance the reliability of the judgment. Delay difference of audio signals between systems is roughly detected by sub-sampling audio signals of two systems and comparing them, and then accurately detected without sub-sampling. Delay difference between audio signals is adjusted by the detected delay difference.
摘要翻译：通过特征量计算器6-1,6-2提取在工作系统和备用系统中发送的音频信号的每个小区域中的特征量。特征量比较器7比较特征量并判断故障的发生。特征量计算器9-1,9-2，∥D‖比较器10和故障系统判断单元11判断具有故障的系统。多数决定处理器12和有效性判断单元13提高判断的可靠性。通过对两个系统的子采样音频信号进行比较，大致检测出系统之间音频信号的延迟差异，然后在不进行子采样的情况下准确检测。通过检测到的延迟差来调整音频信号之间的延迟差。

6. 发明授权

US07385627B2 Picture feature extraction system and picture quality evaluation system 失效
标题翻译：图像特征提取系统和图像质量评估系统
公开(公告)号：US07385627B2
公开(公告)日：2008-06-10
申请号：US10901186
申请日：2004-07-29
申请人： Osamu Sugimoto , Ryoichi Kawada , Atsushi Koike
发明人： Osamu Sugimoto , Ryoichi Kawada , Atsushi Koike
IPC分类号： H04N17/00 , H04N17/02 , G06K9/66 , G06K9/46
CPC分类号： H04N17/004 , H04N19/14 , H04N19/154 , H04N19/85
摘要： This invention is intended to reduce a line rate of a monitoring line necessary for transmission of a picture feature without complicating a system. A video signal xi (n0, n1) of each block is subjected to spread spectrum by multiplying the video signal xi(n0, n1) by a PN sequences SPN1 (n0, n1) (in a step S1). The resultant video signal is orthogonally transformed by DFT, DCT, WHT, or the like (in a step S2). An amplitude component Ai=|Xi(SE0, SE1)| of an arbitrary component (SE0, SE1) in a coefficient Xi(S0, S1) obtained by the steps S1 and S2 is extracted (in a step S3), and the extracted amplitude component is quantized with a step size M (in a step S4). The picture feature F[i] is given as a residue obtained under a modulus Nm of a quantized typical value obtained by the quantization (in the step S4) (in a step S5).
摘要翻译：本发明旨在降低传输图像特征所需的监视线的线路速率，而不会使系统复杂化。每个块的视频信号x 1（n 0，n 1，n 1，...）通过将视频信号x < （n> 0，...，n）（n> 0，...，n）（在步骤S1中）。所得到的视频信号通过DFT，DCT，WHT等进行正交变换（步骤S 2）。振幅分量A 1（X E 1，...，E 1）| | 在系数X 1（S 0，S 3）中的任意分量（S E E，S 1，E 2）提取通过步骤S1和S2获得的（SUB> 1）（在步骤S3中），并且以步长M量化提取的振幅分量（在步骤S 4中）。给出图像特征F [i]作为通过量化获得的量化典型值（在步骤S 4中）（在步骤S 5中）获得的在模数N N m下获得的残差。

7. 发明授权

US07199819B2 Device for automatically detecting picture degradation 失效
标题翻译：用于自动检测图像劣化的设备
公开(公告)号：US07199819B2
公开(公告)日：2007-04-03
申请号：US10781632
申请日：2004-02-20
申请人： Osamu Sugimoto , Ryoichi Kawada , Atsushi Koike , Masahiro Wada
发明人： Osamu Sugimoto , Ryoichi Kawada , Atsushi Koike , Masahiro Wada
IPC分类号： H04N17/00
CPC分类号： H04N17/00
摘要： Feature quantities of a transmitted picture and a received picture are extracted from a first and second block-by-block feature quantity extraction parts which are provided on a transmitting and receiving sides, respectively. The extracted feature quantities are transmitted to a block degradation calculation part which compares the transmitted feature quantities and finds the degree of picture quality degradation for each block. Next, a median filter replaces the degree of picture quality degradation for the each block with a median of the degrees of picture quality degradation among the neighboring blocks of the each block. Then, a degraded block detection part compares the median with a predetermined threshold and detects a degraded block. Finally, a degraded region detection part removes an isolated degraded block and detects a degraded region. According to the invention, local picture quality degradation in a frame caused by transmission failure can be automatically detected with high accuracy.
摘要翻译：从发送和接收侧分别提供的第一和第二逐块特征量提取部分提取发送图像和接收图像的特征量。提取的特征量被发送到块劣化计算部分，其比较发送的特征量并且找出每个块的图像质量劣化程度。接下来，中值滤波器用每个块的相邻块之间的图像质量劣化程度的中值替代每个块的图像质量劣化程度。然后，劣化块检测部分将中值与预定阈值进行比较，并检测劣化块。最后，劣化区域检测部分去除孤立的降级块并检测劣化区域。根据本发明，可以以高精度自动检测由传输失败引起的帧中的局部图像质量劣化。

8. 发明授权

US07675540B2 Concealed regions complementing system of free viewpoint video images 失效
标题翻译：隐藏区域补充免费观点视频图像系统
公开(公告)号：US07675540B2
公开(公告)日：2010-03-09
申请号：US10898166
申请日：2004-07-26
申请人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
发明人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
IPC分类号： H04N13/04 , G06T15/40 , G09G5/00
CPC分类号： G06T15/20 , H04N13/111
摘要： A sender produces a background video image 4 from a reference video image 1 and a depth map 3 and synthesizes the background video image 4 in a background buffer 5. A projection converting matrix 6 for synthesizing is calculated. A receiver receives the reference video image 1, the depth map 3 and the projection converting matrix 6. The receiver produces a free viewpoint video image 11 and a background video image 12. The background buffer 13 is dynamically renewed. The free viewpoint video image 11 and the image in the background buffer 13 are synthesized with each other, and the background video image in the concealed regions in the free viewpoint video image are complemented to obtain the complemented image 14.
摘要翻译：发送者从参考视频图像1和深度图3生成背景视频图像4，并在背景缓冲器5中合成背景视频图像4.计算用于合成的投影转换矩阵6。接收器接收参考视频图像1，深度图3和投影转换矩阵6.接收器产生空闲视点视频图像11和背景视频图像12.背景缓冲器13被动态地更新。自由视点图像11和背景缓冲器13中的图像彼此合成，并且对自由视点视频图像中的隐藏区域中的背景视频图像进行补码以获得补码图像14。

9. 发明申请

US20060044392A1 Transmitted-picture quality monitoring apparatus 有权
标题翻译：传输图像质量监测仪器
公开(公告)号：US20060044392A1
公开(公告)日：2006-03-02
申请号：US11208542
申请日：2005-08-23
申请人： Ryoichi Kawada , Atsushi Koike
发明人： Ryoichi Kawada , Atsushi Koike
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： Picture quality characteristic amounts are extracted with picture quality characteristic amount extracting means 2 and 2′ and are transmitted to a central monitoring room 4 to monitor a transmitted-picture quality. The picture quality characteristic amount extracting means 2 (2′) includes a pixel-position interchanging means 7 (7′) an orthogonal transforming means 8 (8′) and a coefficient extracting means 9 (9′). The picture quality characteristic amount extracting means 2 (2′) may further include a PN-series multiplying means.
摘要翻译：利用图像质量特征量提取装置2和2'提取图像质量特征量，并将其发送到中央监视室4以监视发送图像质量。图像质量特征量提取装置2（2'）包括正交变换装置8（8'）和系数提取装置9（9'）的像素位置交换装置7（7'）。图像质量特征量提取装置2（2'）还可以包括PN系列乘法装置。

10. 发明授权

US07551198B2 Transmitted picture quality monitoring apparatus 有权
标题翻译：传输图像质量监测仪器
公开(公告)号：US07551198B2
公开(公告)日：2009-06-23
申请号：US11059543
申请日：2005-02-17
申请人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
发明人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
IPC分类号： H04N17/00
CPC分类号： H04N7/01 , H04N17/004
摘要： A picture of 625/50 format is converted to a picture of 525/60 format by a format converter provided halfway of the transmission link (1). By thinning scanning lines from the 625/50 format with a scanning line thinning means (2) on an input side of the transmission link (1) and then thinning fields from the format of 525/60 with a field (frame) thinning means (4) on an output side, the formats are matched with each other. After that, a picture quality characteristic amount is extracted by picture quality characteristic amount extracting portions (3), (5) and transmitted to a central monitoring room (6). A comparing means (7) of the central monitoring room (6) compares received picture quality characteristic amount so as to monitor a transmitted picture quality on a transmission link.
摘要翻译：通过传输链路（1）中途的格式转换器将625/50格式的图像转换为525/60格式的图像。通过在传输链路（1）的输入侧上用扫描线稀疏装置（2）从625/50格式中稀疏扫描线，然后用场（帧）稀疏装置（525/60）的格式， 4）在输出侧，格式相互匹配。之后，通过图像质量特征量提取部（3），（5）提取图像质量特征量，并将其发送到中央监视室（6）。中央监控室（6）的比较装置（7）比较接收的图像质量特征量，以便监视传输链路上传输的图像质量。

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