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1. 发明授权

US08130274B2 Video quality objective assessment device, assessment method, and program 有权
标题翻译：视频质量客观评估装置，评估方法和程序
公开(公告)号：US08130274B2
公开(公告)日：2012-03-06
申请号：US11663679
申请日：2005-10-17
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00
CPC分类号： H04N17/00 , H04N17/004
摘要： A video quality objective assessment device includes a temporal/spatial feature amount derivation unit (12) which derives a temporal/spatial feature amount (PC) which is the feature amount of deterioration which has occurred in a deteriorated video signal (PI), from the deteriorated video signal (PI) to be assessed and a reference video signal (RI) which is a signal before deterioration of the deteriorated video signal, and a subjective quality estimation unit (14) which weights the temporal/spatial feature amount (PC) according to the relationship between the deteriorated video obtained in advance and the user subjective assessment value, thereby estimating the subjective quality (Y) of the deteriorated video signal (PI). Thus, it is possible to estimate a video subjective quality even when deterioration occurs locally in the video in the temporal/spatial direction.
摘要翻译：视频质量客观评估装置包括时间/空间特征量导出单元（12），该时间/空间特征量导出单元（12）从劣化的视频信号（PI）中导出作为劣化的特征量的时间/空间特征量（PC）劣质视频信号（PI）和作为恶化视频信号劣化前的信号的参考视频信号（RI），以及主观质量估计单元（14），其根据关于预先获得的劣化视频与用户主观评估值之间的关系，从而估计劣化视频信号（PI）的主观质量（Y）。因此，即使当在时间/空间方向上的视频中局部发生劣化时，也可以估计视频主观质量。

2. 发明申请

US20100157144A1 Video Quality Assessing Apparatus 有权
标题翻译：视频质量评估仪
公开(公告)号：US20100157144A1
公开(公告)日：2010-06-24
申请号：US12717983
申请日：2010-03-05
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N7/01 , H04N5/04
CPC分类号： H04N17/04 , H04N17/00
摘要： A subjective quality estimating part (11) receives an undeteriorated reference video signal (RI) and a deteriorated video signal (PI) produced from the reference video signal, calculates video signal feature values for both the signals, and according to a difference between the calculated video signal feature values of the signals, estimates a subjective quality of the deteriorated video signal. A feature value calculating part (12) calculates the video signal feature values of the reference video signal. A correction information storing part (13) stores correction information that corresponds to video signal feature values and is used to correct the subjective quality. A correction calculating part (14) receives the video signal feature values of the reference video signal from the feature value calculating part (12), retrieves correction information corresponding to the received video signal feature values from the correction information storing part (13), and transfers the retrieved correction information to a correcting part (15). According to the transferred correction information, the correcting part (15) corrects the subjective quality estimated by the subjective quality estimating part (11).
摘要翻译：主观质量估计部分（11）接收未参照视频信号（RI）和从参考视频信号产生的劣化视频信号（PI），计算两个信号的视频信号特征值，并根据计算出的信号的视频信号特征值估计劣化的视频信号的主观质量。特征值计算部分（12）计算参考视频信号的视频信号特征值。校正信息存储部分（13）存储与视频信号特征值对应的校正信息，并用于校正主观质量。校正计算部分（14）从特征值计算部分（12）接收参考视频信号的视频信号特征值，从校正信息存储部分（13）检索对应于接收的视频信号特征值的校正信息，以及将检索到的校正信息传送到校正部分（15）。根据传送的校正信息，校正部件（15）校正由主观质量估计部件（11）估计出的主观质量。

3. 发明申请

US20090303386A1 Video Matching Apparatus and Video Matching Method 有权
标题翻译：视频匹配设备和视频匹配方法
公开(公告)号：US20090303386A1
公开(公告)日：2009-12-10
申请号：US12308152
申请日：2007-04-26
申请人： Jun Okamoto , Keishirou Watanabe , Takaaki Kurita
发明人： Jun Okamoto , Keishirou Watanabe , Takaaki Kurita
IPC分类号： H04N5/04 , H04N5/00
CPC分类号： G06T5/10 , G06T5/002 , G06T5/20 , G06T2207/10016 , G06T2207/20032 , H04N17/004
摘要： A singular point removing unit (12) removes a singular point as invisible high-frequency component noise from a degraded video signal and a reference video signal. A pixel value correcting unit (13) removes pixel-value bias added to the degraded video signal. The singular point removing unit (12) transforms the video signal into a spatial frequency, removes a high-frequency component, and restores the video signal by inverse transformation, or removes a singular point by using an averaging filter or a median filter. The pixel value correcting unit (13) obtains the correlation between the pixel values of the reference video signal and the corresponding pixel values of the degraded video signal, and corrects the pixel values of the reference video signal or the degraded video signal so as to match the pixel values of the degraded video signal with the pixel values of the reference video signal.
摘要翻译：奇异点去除单元（12）从劣化的视频信号和参考视频信号中除去奇异点作为不可见的高频分量噪声。像素值校正单元（13）去除添加到劣化视频信号的像素值偏差。奇异点去除单元（12）将视频信号变换为空间频率，去除高频分量，并通过逆变换恢复视频信号，或者通过使用平均滤波器或中值滤波器去除奇异点。像素值校正单元（13）获得参考视频信号的像素值与劣化视频信号的相应像素值之间的相关性，并且校正参考视频信号或劣化视频信号的像素值以便匹配具有参考视频信号的像素值的劣化视频信号的像素值。

4. 发明申请

US20090040311A1 Video matching device, method, and program 有权
标题翻译：视频匹配设备，方法和程序
公开(公告)号：US20090040311A1
公开(公告)日：2009-02-12
申请号：US11921209
申请日：2006-07-11
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： A matched state detection unit (33) of a video matching device (100) detects a reference video frame, of the respective video frames of a reference video (1) and degraded video (2B), which is in a matched state in which it is spatially and temporally matched with each degraded video frame. A matching degree derivation unit (34) controls a degradation amount derivation unit (40) to acquire the first degradation amount indicating the degradation amount between a reference video frame and a degraded video frame in the matched state and the second degradation amount indicating the degradation amount between a reference video frame and a degraded video frame in a state shifted from the matched state by a predetermined number of pixels and calculate a matching degree on the basis of the ratio between the first degradation amount and the second degradation amount. A matching information output unit (35) outputs the matching degree between the reference video and the degraded video after matching.
摘要翻译：视频匹配装置（100）的匹配状态检测单元（33）检测参考视频（1）和劣化视频（2B）的各个视频帧的参考视频帧，该视频帧处于匹配状态在空间和时间上与每个降级的视频帧匹配。匹配度导出单元（34）控制劣化量导出单元（40）获取指示匹配状态下的参考视频帧和劣化视频帧之间的劣化量的第一劣化量，以及指示降级量的第二劣化量在从匹配状态转移预定数量的像素的状态下的参考视频帧和降级视频帧之间，并且基于第一劣化量和第二劣化量之间的比率来计算匹配度。匹配信息输出单元（35）在匹配之后输出参考视频和劣化视频之间的匹配度。

5. 发明申请

US20080143837A1 Video Quality Objective Assessment Device, Assessment Method, and Program 有权
标题翻译：视频质量目标评估装置，评估方法和方案
公开(公告)号：US20080143837A1
公开(公告)日：2008-06-19
申请号：US11663679
申请日：2005-10-17
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00
CPC分类号： H04N17/00 , H04N17/004
摘要： A video quality objective assessment device includes a temporal/spatial feature amount derivation unit (12) which derives a temporal/spatial feature amount (PC) which is the feature amount of deterioration which has occurred in a deteriorated video signal (PI), from the deteriorated video signal (PI) to be assessed and a reference video signal (RI) which is a signal before deterioration of the deteriorated video signal, and a subjective quality estimation unit (14) which weights the temporal/spatial feature amount (PC) according to the relationship between the deteriorated video obtained in advance and the user subjective assessment value, thereby estimating the subjective quality (Y) of the deteriorated video signal (PI). Thus, it is possible to estimate a video subjective quality even when deterioration occurs locally in the video in the temporal/spatial direction.
摘要翻译：视频质量客观评估装置包括时间/空间特征量导出单元（12），该时间/空间特征量导出单元（12）从劣化的视频信号（PI）中导出作为劣化的特征量的时间/空间特征量（PC）劣质视频信号（PI）和作为恶化视频信号劣化前的信号的参考视频信号（RI），以及主观质量估计单元（14），其根据关于预先获得的劣化视频与用户主观评估值之间的关系，从而估计劣化视频信号（PI）的主观质量（Y）。因此，即使当在时间/空间方向上的视频中局部发生劣化时，也可以估计视频主观质量。

6. 发明授权

US08253803B2 Video quality assessing apparatus 有权
标题翻译：视频质量评估仪
公开(公告)号：US08253803B2
公开(公告)日：2012-08-28
申请号：US12717983
申请日：2010-03-05
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00 , H04N17/02
CPC分类号： H04N17/04 , H04N17/00
摘要： A subjective quality estimating part (11) receives an undeteriorated reference video signal (RI) and a deteriorated video signal (PI) produced from the reference video signal, calculates video signal feature values for both the signals, and according to a difference between the calculated video signal feature values of the signals, estimates a subjective quality of the deteriorated video signal. A feature value calculating part (12) calculates the video signal feature values of the reference video signal. A correction information storing part (13) stores correction information that corresponds to video signal feature values and is used to correct the subjective quality. A correction calculating part (14) receives the video signal feature values of the reference video signal from the feature value calculating part (12), retrieves correction information corresponding to the received video signal feature values from the correction information storing part (13), and transfers the retrieved correction information to a correcting part (15). According to the transferred correction information, the correcting part (15) corrects the subjective quality estimated by the subjective quality estimating part (11).
摘要翻译：主观质量估计部分（11）接收未参照视频信号（RI）和从参考视频信号产生的劣化视频信号（PI），计算两个信号的视频信号特征值，并根据计算出的信号的视频信号特征值估计劣化的视频信号的主观质量。特征值计算部分（12）计算参考视频信号的视频信号特征值。校正信息存储部分（13）存储与视频信号特征值对应的校正信息，并用于校正主观质量。校正计算部分（14）从特征值计算部分（12）接收参考视频信号的视频信号特征值，从校正信息存储部分（13）检索对应于接收的视频信号特征值的校正信息，以及将检索到的校正信息传送到校正部分（15）。根据传送的校正信息，校正部件（15）校正由主观质量估计部件（11）估计出的主观质量。

7. 发明授权

US08094196B2 Video matching device, method, and program 有权
标题翻译：视频匹配设备，方法和程序
公开(公告)号：US08094196B2
公开(公告)日：2012-01-10
申请号：US11921209
申请日：2006-07-11
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00 , H04N17/02 , G06F7/02 , H03M13/00 , G01R13/00 , G01R29/26 , G01N37/00
CPC分类号： H04N17/004
摘要： A matched state detection unit (33) of a video matching device (100) detects a reference video frame, of the respective video frames of a reference video (1) and degraded video (2B), which is in a matched state in which it is spatially and temporally matched with each degraded video frame. A matching degree derivation unit (34) controls a degradation amount derivation unit (40) to acquire the first degradation amount indicating the degradation amount between a reference video frame and a degraded video frame in the matched state and the second degradation amount indicating the degradation amount between a reference video frame and a degraded video frame in a state shifted from the matched state by a predetermined number of pixels and calculate a matching degree on the basis of the ratio between the first degradation amount and the second degradation amount. A matching information output unit (35) outputs the matching degree between the reference video and the degraded video after matching.
摘要翻译：视频匹配装置（100）的匹配状态检测单元（33）检测参考视频（1）和劣化视频（2B）的各个视频帧的参考视频帧，该视频帧处于匹配状态在空间和时间上与每个降级的视频帧匹配。匹配度导出单元（34）控制劣化量导出单元（40）获取指示匹配状态下的参考视频帧和劣化视频帧之间的劣化量的第一劣化量，以及指示降级量的第二劣化量在从匹配状态转移预定数量的像素的状态下的参考视频帧和降级视频帧之间，并且基于第一劣化量和第二劣化量之间的比率来计算匹配度。匹配信息输出单元（35）在匹配之后输出参考视频和劣化视频之间的匹配度。

8. 发明授权

US08195010B2 Video matching apparatus and video matching method 有权
标题翻译：视频匹配设备和视频匹配方法
公开(公告)号：US08195010B2
公开(公告)日：2012-06-05
申请号：US12308152
申请日：2007-04-26
申请人： Jun Okamoto , Keishirou Watanabe , Takaaki Kurita
发明人： Jun Okamoto , Keishirou Watanabe , Takaaki Kurita
IPC分类号： G06K9/03
CPC分类号： G06T5/10 , G06T5/002 , G06T5/20 , G06T2207/10016 , G06T2207/20032 , H04N17/004
摘要： A singular point removing unit (12) removes a singular point as invisible high-frequency component noise from a degraded video signal and a reference video signal. A pixel value correcting unit (13) removes pixel-value bias added to the degraded video signal. The singular point removing unit (12) transforms the video signal into a spatial frequency, removes a high-frequency component, and restores the video signal by inverse transformation, or removes a singular point by using an averaging filter or a median filter. The pixel value correcting unit (13) obtains the correlation between the pixel values of the reference video signal and the corresponding pixel values of the degraded video signal, and corrects the pixel values of the reference video signal or the degraded video signal so as to match the pixel values of the degraded video signal with the pixel values of the reference video signal.
摘要翻译：奇异点去除单元（12）从劣化的视频信号和参考视频信号中除去奇异点作为不可见的高频分量噪声。像素值校正单元（13）去除添加到劣化视频信号的像素值偏差。奇异点去除单元（12）将视频信号变换为空间频率，去除高频分量，并通过逆变换恢复视频信号，或者通过使用平均滤波器或中值滤波器去除奇异点。像素值校正单元（13）获得参考视频信号的像素值与劣化视频信号的相应像素值之间的相关性，并且校正参考视频信号或劣化视频信号的像素值以便匹配具有参考视频信号的像素值的劣化视频信号的像素值。

9. 发明授权

US07705881B2 Video quality assessing apparatus, video quality assessing method, and video quality assessing program 有权
标题翻译：视频质量评估仪器，视频质量评估方法和视频质量评估程序
公开(公告)号：US07705881B2
公开(公告)日：2010-04-27
申请号：US10556103
申请日：2004-08-20
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： H04N17/00
CPC分类号： H04N17/04 , H04N17/00
摘要： A subjective quality estimating part (11) receives an undeteriorated reference video signal (RI) and a deteriorated video signal (PI) produced from the reference video signal, calculates video signal feature values for both the signals, and according to a difference between the calculated video signal feature values of the signals, estimates a subjective quality of the deteriorated video signal. A feature value calculating part (12) calculates the video signal feature values of the reference video signal. A correction information storing part (13) stores correction information that corresponds to video signal feature values and is used to correct the subjective quality. A correction calculating part (14) receives the video signal feature values of the reference video signal from the feature value calculating part (12), retrieves correction information corresponding to the received video signal feature values from the correction information storing part (13), and transfers the retrieved correction information to a correcting part (15). According to the transferred correction information, the correcting part (15) corrects the subjective quality estimated by the subjective quality estimating part (11).
摘要翻译：主观质量估计部分（11）接收未参照视频信号（RI）和从参考视频信号产生的劣化视频信号（PI），计算两个信号的视频信号特征值，并根据计算出的信号的视频信号特征值估计劣化的视频信号的主观质量。特征值计算部分（12）计算参考视频信号的视频信号特征值。校正信息存储部分（13）存储与视频信号特征值对应的校正信息，并用于校正主观质量。校正计算部分（14）从特征值计算部分（12）接收参考视频信号的视频信号特征值，从校正信息存储部分（13）检索对应于接收的视频信号特征值的校正信息，以及将检索到的校正信息传送到校正部分（15）。根据传送的校正信息，校正部件（15）校正由主观质量估计部件（11）估计出的主观质量。

10. 发明申请

US20060276983A1 Video quality evaluation device, video quality evaluation method, video quality evaluation program, video matching device, video aligning method and video aligning program 有权
标题翻译：视频质量评估装置，视频质量评估方法，视频质量评估程序，视频匹配装置，视频对准方法和视频对准方案
公开(公告)号：US20060276983A1
公开(公告)日：2006-12-07
申请号：US10556103
申请日：2004-08-20
申请人： Jun Okamoto , Takaaki Kurita
发明人： Jun Okamoto , Takaaki Kurita
IPC分类号： G01R29/26 , H04N17/00
CPC分类号： H04N17/04 , H04N17/00
摘要： A subjective quality estimating part (11) receives an undeteriorated reference video signal (RI) and a deteriorated video signal (PI) produced from the reference video signal, calculates video signal feature values for both the signals, and according to a difference between the calculated video signal feature values of the signals, estimates a subjective quality of the deteriorated video signal. A feature value calculating part (12) calculates the video signal feature values of the reference video signal. A correction information storing part (13) stores correction information that corresponds to video signal feature values and is used to correct the subjective quality. A correction calculating part (14) receives the video signal feature values of the reference video signal from the feature value calculating part (12), retrieves correction information corresponding to the received video signal feature values from the correction information storing part (13), and transfers the retrieved correction information to a correcting part (15). According to the transferred correction information, the correcting part (15) corrects the subjective quality estimated by the subjective quality estimating part (11).
摘要翻译：主观质量估计部分（11）接收未参照视频信号（RI）和从参考视频信号产生的劣化视频信号（PI），计算两个信号的视频信号特征值，并根据计算出的信号的视频信号特征值估计劣化的视频信号的主观质量。特征值计算部分（12）计算参考视频信号的视频信号特征值。校正信息存储部分（13）存储与视频信号特征值对应的校正信息，并用于校正主观质量。校正计算部分（14）从特征值计算部分（12）接收参考视频信号的视频信号特征值，从校正信息存储部分（13）检索对应于接收的视频信号特征值的校正信息，以及将检索到的校正信息传送到校正部分（15）。根据传送的校正信息，校正部件（15）校正由主观质量估计部件（11）估计出的主观质量。

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