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公开(公告)号：US08532422B2
公开(公告)日：2013-09-10
申请号：US13057059
申请日：2009-08-06
IPC分类号： G06K9/00
摘要： A simple and practical image restoring device capable of improving the performance of image restoration. An image restoring device (100) is provided with a first restoration processing unit (160a) and estimates original image information from the degraded image information into which information unnecessary for the original image information is incorporated. A correlation calculating section (164) calculates the correlation value of the estimation error of when the state amount of a system at time n+1 including the original image information is estimated by information up to time n or the time n+1 with respect to the degraded image information of only the time n. A weighting factor calculating section (166) calculates a weighting factor to define the relationship of the optimum estimated value of the state amount at the time n+1 by the information up to the time n+1, the optimum estimated value of the state amount at the time n+1 by the information up to the time n, and an estimation error of an observed amount including the degraded image information by using the correlation value with respect to the degraded image information of only the time n. An optimum estimated value calculating section (168) calculates the optimum estimated value of the state amount at the time n+1 by the information up to the time n+1 by using the weighting factor with respect to the degraded image information of only the time n.
摘要翻译： 一种能够提高图像恢复性能的简单实用的图像恢复装置。 图像恢复装置（100）设置有第一恢复处理单元（160a），并且从包含原始图像信息所不需要的信息的劣化图像信息中估计原始图像信息。 相关计算部（164）计算当包括原始图像信息在内的时刻n + 1的系统的状态量通过直到时刻n或时间n + 1的信息来估计的估计误差的相关值相对于 退化的图像信息只有时间n。 加权系数计算部（166）计算加权系数，以确定在时刻n + 1的状态量的最佳估计值与直到时刻n + 1的信息，状态量的最佳推定值 在时刻n + 1处的信息，以及通过使用相对于劣化图像信息仅与时间n相关的值的包含劣化图像信息的观测量的估计误差。 最佳估计值计算部分（168）通过使用相对于劣化图像信息的加权因子来计算直到时间n + 1的信息在时间n + 1处的状态量的最佳估计值 n。
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公开(公告)号：US20100262425A1
公开(公告)日：2010-10-14
申请号：US12746416
申请日：2009-03-18
申请人： Nari Tanabe , Toshihiro Furukawa
发明人： Nari Tanabe , Toshihiro Furukawa
CPC分类号： G06T5/50 , G06T5/002 , G06T5/003 , G06T2207/10016 , G06T2207/20076 , G06T2207/20182 , G06T2207/20221 , G10L21/0208 , G10L25/06 , G10L2021/02163
摘要： Disclosed is a noise suppression device capable of better noise suppression by means of a simpler structure and with a lighter computational load. A noise suppression device (100) has a noise suppression processor (150) to estimate the required information only from the observed information, which is the required information corrupted by noise. A correlator (154) calculates the correlation of the estimation error when the state quantity, which contains the required information, of the system at time n+1 was estimated from the information until time n or time n+1 for the observed information at only time n. A weighting coefficient calculator (156) uses the correlation calculated by the correlator (154) for the observed information at only time n to calculate the weighting coefficients for specifying the relationships of the optimum estimate of the state quantity at that time based on the information until time n+1, the optimum estimate of the state quantity at time n+1 based on the information until time n, and the estimation error of the observed quantity including the observed information. An optimum estimate calculator (158) uses the weighting coefficients calculated by the weighting coefficient calculator (156) for the observed information only at time n to calculate the optimum estimate of the state quantity at that time based on the information until time n or time n+1.
摘要翻译： 公开了一种噪声抑制装置，其能够通过更简单的结构和更轻的计算负荷来更好地进行噪声抑制。 噪声抑制装置（100）具有噪声抑制处理器（150），仅从所观察到的信息估计所需信息，所述信息是被噪声破坏的所需信息。 相关器（154）根据信息估计包含所需信息的状态量（包含所需信息）时的估计误差的相关性，直到时刻n或时间n + 1为止 时间n 加权系数计算器（156）使用由相关器（154）计算出的相关性仅在时间n的观测信息的相关性，以计算用于根据该信息指定当时状态量的最佳估计的关系的加权系数，直到 时间n + 1，基于直到时间n的信息在时间n + 1的状态量的最佳估计，以及包括观察信息的观测量的估计误差。 最佳估计计算器（158）仅在时间n使用由加权系数计算器（156）计算出的观测信息的加权系数，以基于该信息计算当时状态量的最佳估计，直到时间n或时间n +1。
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公开(公告)号：US08527266B2
公开(公告)日：2013-09-03
申请号：US12746416
申请日：2009-03-18
申请人： Nari Tanabe , Toshihiro Furukawa
发明人： Nari Tanabe , Toshihiro Furukawa
IPC分类号： G10L21/02
CPC分类号： G06T5/50 , G06T5/002 , G06T5/003 , G06T2207/10016 , G06T2207/20076 , G06T2207/20182 , G06T2207/20221 , G10L21/0208 , G10L25/06 , G10L2021/02163
摘要： Disclosed is a noise suppression device capable of better noise suppression by means of a simpler structure and with a lighter computational load. A noise suppression device (100) has a noise suppression processor (150) to estimate the required information only from the observed information, which is the required information corrupted by noise. A correlator (154) calculates the correlation of the estimation error when the state quantity, which contains the required information, of the system at time n+1 was estimated from the information until time n or time n+1 for the observed information at only time n. A weighting coefficient calculator (156) uses the correlation calculated by the correlator (154) for the observed information at only time n to calculate the weighting coefficients for specifying the relationships of the optimum estimate of the state quantity at that time based on the information until time n+1, the optimum estimate of the state quantity at time n+1 based on the information until time n, and the estimation error of the observed quantity including the observed information. An optimum estimate calculator (158) uses the weighting coefficients calculated by the weighting coefficient calculator (156) for the observed information only at time n to calculate the optimum estimate of the state quantity at that time based on the information until time n or time n+1.
摘要翻译： 公开了一种噪声抑制装置，其能够通过更简单的结构和更轻的计算负荷来更好地进行噪声抑制。 噪声抑制装置（100）具有噪声抑制处理器（150），仅从所观察到的信息估计所需信息，所述信息是被噪声破坏的所需信息。 相关器（154）根据信息估计包含所需信息的状态量（包含所需信息）时的估计误差的相关性，直到时刻n或时间n + 1为止 时间n 加权系数计算器（156）使用由相关器（154）计算出的相关性仅在时间n的观测信息的相关性，以计算用于根据该信息指定当时状态量的最佳估计的关系的加权系数，直到 时间n + 1，基于直到时间n的信息在时间n + 1的状态量的最佳估计，以及包括观察信息的观测量的估计误差。 最佳估计计算器（158）仅在时间n使用由加权系数计算器（156）计算出的观测信息的加权系数，以基于该信息计算当时状态量的最佳估计，直到时间n或时间n +1。
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公开(公告)号：US20110135214A1
公开(公告)日：2011-06-09
申请号：US13057059
申请日：2009-08-06
IPC分类号： G06K9/40
摘要： A simple and practical image restoring device capable of improving the performance of image restoration. An image restoring device (100) is provided with a first restoration processing unit (160a) and estimates original image information from the degraded image information into which information unnecessary for the original image information is incorporated. A correlation calculating section (164) calculates the correlation value of the estimation error of when the state amount of a system at time n+1 including the original image information is estimated by information up to time n or the time n+1 with respect to the degraded image information of only the time n. A weighting factor calculating section (166) calculates a weighting factor to define the relationship of the optimum estimated value of the state amount at the time n+1 by the information up to the time n+1, the optimum estimated value of the state amount at the time n+1 by the information up to the time n, and an estimation error of an observed amount including the degraded image information by using the correlation value with respect to the degraded image information of only the time n. An optimum estimated value calculating section (168) calculates the optimum estimated value of the state amount at the time n+1 by the information up to the time n+1 by using the weighting factor with respect to the degraded image information of only the time n.
摘要翻译： 一种能够提高图像恢复性能的简单实用的图像恢复装置。 图像恢复装置（100）设置有第一恢复处理单元（160a），并且从包含原始图像信息所不需要的信息的劣化图像信息中估计原始图像信息。 相关计算部（164）计算当包括原始图像信息在内的时刻n + 1的系统的状态量通过直到时刻n或时间n + 1的信息来估计的估计误差的相关值相对于 退化的图像信息只有时间n。 加权系数计算部（166）计算加权系数，以确定在时刻n + 1的状态量的最佳估计值与直到时刻n + 1的信息，状态量的最佳推定值 在时刻n + 1处的信息，以及通过使用相对于劣化图像信息仅与时间n相关的值的包含劣化图像信息的观测量的估计误差。 最佳估计值计算部分（168）通过使用相对于劣化图像信息的加权因子来计算直到时间n + 1的信息在时间n + 1处的状态量的最佳估计值 n。
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