专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07505084B2 Picture quality improvement device and picture quality improvement method 有权
标题翻译：图像质量改进装置和图像质量改进方法
公开(公告)号：US07505084B2
公开(公告)日：2009-03-17
申请号：US11258154
申请日：2005-10-26
申请人： Michio Kobayashi , Eifu Nezu , Reiichi Kobayashi
发明人： Michio Kobayashi , Eifu Nezu , Reiichi Kobayashi
IPC分类号： H04N5/21
CPC分类号： H04N5/14
摘要： An average value signal of the G two-phase input signal is generated by means of an average value calculation circuit. This average value signal is regarded as a signal in which a one-dimensional low-pass filter process, in which the number of taps is 2 and the filter coefficient for each tap is 0.5, has been carried out for a single-phase signal and the number of items of data then thinned to one half. A two-dimensional LPF circuit next subjects this average value signal to a low-pass filter process to eliminate the high-frequency component (edge component). The average value signal that has undergone the low-pass filter process is then subtracted from the input signal of each phase to extract the edge component of the input signal of each phase. An amplification circuit then multiplies the edge component of the input signal of each phase by a prescribed factor, and an addition circuit next adds this multiplied edge component to the input signal of each phase. The above-described processes emphasize the edges of a video picture that is realized by a two-phase signal and thus realize flare correction.
摘要翻译：通过平均值计算电路产生G两相输入信号的平均值信号。该平均值信号被认为是针对单相信号执行其中抽头数为2并且每个抽头的滤波器系数为0.5的一维低通滤波处理的信号，数据项目的数量减少到一半。接下来，二维LPF电路将该平均值信号进行低通滤波处理以消除高频分量（边缘分量）。然后从各相输入信号中减去经过低通滤波处理的平均值信号，以提取每相输入信号的边沿分量。然后，放大电路将每相的输入信号的边沿分量乘以规定的因子，并且下一个加法电路将该相乘的边沿分量加到每相的输入信号上。上述处理强调由两相信号实现的视频图像的边缘，从而实现闪光校正。

2. 发明授权

US07518660B2 Picture quality improvement device and picture quality improvement method 有权
标题翻译：图像质量改进装置和图像质量改进方法
公开(公告)号：US07518660B2
公开(公告)日：2009-04-14
申请号：US11272783
申请日：2005-11-15
申请人： Michio Kobayashi , Eifu Nezu
发明人： Michio Kobayashi , Eifu Nezu
IPC分类号： H04N5/21
CPC分类号： H04N5/208
摘要： A field delay circuit aligns the phases of two field signals. An average value calculation circuit generates an average value signal of the two field signals. This average value signal can be regarded as a signal that has undergone a one-dimensional low-pass filter process in the row direction in which the number of taps for a progressive signal is 2 and the filter coefficient for each tap is 0.5 and that has then been thinned to one-half the data. A two-dimensional LPF circuit subjects this average value signal to a low-pass filter process and eliminates the high-frequency components (edge components). A subtraction circuit subtracts the average value signal that has undergone the LPF process from each field signal and thus extracts the edge components of each field signal. An amplification circuit multiplies the edge components of each field signal by a prescribed factor. An addition circuit adds the resulting amplified edge components to each field signal.
摘要翻译：场延迟电路对准两个场信号的相位。平均值计算电路产生两个场信号的平均值信号。该平均值信号可以被认为是在行方向上进行了一维低通滤波处理的信号，其中逐行信号的抽头数为2，并且每个抽头的滤波器系数为0.5，并且具有然后被稀释为数据的一半。二维LPF电路将该平均值信号作为低通滤波处理，并消除高频分量（边缘分量）。减法电路从每个场信号中减去经过LPF处理的平均值信号，从而提取每个场信号的边缘分量。放大电路将每个场信号的边缘分量乘以规定的因子。加法电路将所产生的放大的边缘分量加到每个场信号上。

3. 发明授权

US08422814B2 Apparatus and method for geometric distortion correction in video signals 有权
标题翻译：视频信号中几何失真校正的装置和方法
公开(公告)号：US08422814B2
公开(公告)日：2013-04-16
申请号：US12312189
申请日：2008-01-25
申请人： Eifu Nezu
发明人： Eifu Nezu
IPC分类号： G06K9/40
CPC分类号： H04N5/217 , H04N5/74
摘要： Unnecessary flare correction at the boundary between a blanking area and video signal area is suppressed. An image quality improving apparatus includes 2-dimensional low-pass filter circuit 2 that extracts low-frequency components from an input video signal; subtractor circuit 4 that obtains high-frequency components by subtracting the low-frequency components extracted by 2-dimensional low-pass filter circuit 2 from the input video signal; and adder circuit 6 that adds the high-frequency components obtained by subtractor circuit 4 as a correction signal to the input video signal. The input video signal contains blanking signals without any video information. 2-dimensional low-pass filter circuit 2 starts extraction of the low-frequency components after a lapse of a predetermined unit time from when the input video signal changed from the blanking signal to the signal that contains the video information.
摘要翻译：在消隐区域和视频信号区域之间的边界处的不必要的光斑校正被抑制。图像质量改善装置包括从输入视频信号中提取低频分量的二维低通滤波器电路2; 减法器电路4，通过从输入视频信号中减去由二维低通滤波器电路2提取的低频分量来获得高频分量; 以及加法器电路6，其将由减法器电路4获得的高频分量作为校正信号添加到输入视频信号。输入视频信号包含没有任何视频信息的消隐信号。二维低通滤波器电路2在从输入视频信号从消隐信号变为包含视频信息的信号之后经过预定单位时间之后开始提取低频分量。

4. 发明申请

US20060103763A1 Picture quality improvement device and picture quality improvement method 有权
公开(公告)号：US20060103763A1
公开(公告)日：2006-05-18
申请号：US11272783
申请日：2005-11-15
申请人： Michio Kobayashi , Eifu Nezu
发明人： Michio Kobayashi , Eifu Nezu
IPC分类号： H04N5/21
CPC分类号： H04N5/208
摘要： A field delay circuit aligns the phases of two field signals. An average value calculation circuit generates an average value signal of the two field signals. This average value signal can be regarded as a signal that has undergone a one-dimensional low-pass filter process in the row direction in which the number of taps for a progressive signal is 2 and the filter coefficient for each tap is 0.5 and that has then been thinned to one-half the data. A two-dimensional LPF circuit subjects this average value signal to a low-pass filter process and eliminates the high-frequency components (edge components). A subtraction circuit subtracts the average value signal that has undergone the LPF process from each field signal and thus extracts the edge components of each field signal. An amplification circuit multiplies the edge components of each field signal by a prescribed factor. An addition circuit adds the resulting amplified edge components to each field signal.

5. 发明申请

US20090279806A1 IMAGE QUALITY IMPROVING APPARATUS AND IMAGE QUALITY IMPROVING METHOD 有权
标题翻译：图像质量改进装置和图像质量改进方法
公开(公告)号：US20090279806A1
公开(公告)日：2009-11-12
申请号：US12312189
申请日：2008-01-25
申请人： Eifu Nezu
发明人： Eifu Nezu
IPC分类号： G06K9/40
CPC分类号： H04N5/217 , H04N5/74
摘要： Unnecessary flare correction at the boundary between a blanking area and video signal area is suppressed. An image quality improving apparatus includes 2-dimensional low-pass filter circuit 2 that extracts low-frequency components from an input video signal; subtractor circuit 4 that obtains high-frequency components by subtracting the low-frequency components extracted by 2-dimensional low-pass filter circuit 2 from the input video signal; and adder circuit 6 that adds the high-frequency components obtained by subtractor circuit 4 as a correction signal to the input video signal. The input video signal contains blanking signals without any video information. 2-dimensional low-pass filter circuit 2 starts extraction of the low-frequency components after a lapse of a predetermined unit time from when the input video signal changed from the blanking signal to the signal that contains the video information.
摘要翻译：在消隐区域和视频信号区域之间的边界处的不必要的光斑校正被抑制。图像质量改善装置包括从输入视频信号中提取低频分量的二维低通滤波器电路2; 减法器电路4，通过从输入视频信号中减去由二维低通滤波器电路2提取的低频分量来获得高频分量; 以及加法器电路6，其将由减法器电路4获得的高频分量作为校正信号添加到输入视频信号。输入视频信号包含没有任何视频信息的消隐信号。二维低通滤波器电路2在从输入视频信号从消隐信号变为包含视频信息的信号之后经过预定单位时间之后开始提取低频分量。

6. 发明申请

US20060098122A1 Picture quality improvement device and picture quality improvement method 有权
公开(公告)号：US20060098122A1
公开(公告)日：2006-05-11
申请号：US11258154
申请日：2005-10-26
申请人： Michio Kobayashi , Eifu Nezu , Reiichi Kobayashi
发明人： Michio Kobayashi , Eifu Nezu , Reiichi Kobayashi
IPC分类号： H04N5/14
CPC分类号： H04N5/14
摘要： An average value signal of the G two-phase input signal is generated by means of an average value calculation circuit. This average value signal is regarded as a signal in which a one-dimensional low-pass filter process, in which the number of taps is 2 and the filter coefficient for each tap is 0.5, has been carried out for a single-phase signal and the number of items of data then thinned to one half. A two-dimensional LPF circuit next subjects this average value signal to a low-pass filter process to eliminate the high-frequency component (edge component). The average value signal that has undergone the low-pass filter process is then subtracted from the input signal of each phase to extract the edge component of the input signal of each phase. An amplification circuit then multiplies the edge component of the input signal of each phase by a prescribed factor, and an addition circuit next adds this multiplied edge component to the input signal of each phase. The above-described processes emphasize the edges of a video picture that is realized by a two-phase signal and thus realize flare correction.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式