公开(公告)号：US20130335634A1

公开(公告)日：2013-12-19

申请号：US13527577

申请日：2012-06-19

申请人： Albert Hua Tai

发明人： Albert Hua Tai

IPC分类号： H04N5/21

CPC分类号： H04N5/213

摘要： A noise reduction device and a noise reduction method are disclosed. The noise reduction device includes a DC removal unit for removing a DC component of a luminance; a first wavelet transform unit for performing a wavelet transform on an output of the DC removal unit for outputting a first low and high band signals; a first low and high band noise estimation units for estimating a first low and high band noise values; a first low and high band soft threshold processing units for forming a first low and high band noise reduction signals according to the first low and high band noise values; and a first inverse wavelet transform unit for performing an inverse wavelet transform on the first low and high band noise reduction signals. The present invention is capable of reducing or removing a noise in the luminance signal.

摘要翻译： 公开了降噪装置和降噪方法。 降噪装置包括用于去除亮度的DC分量的DC去除单元; 第一小波变换单元，用于对所述DC去除单元的输出执行小波变换，以输出第一低和高频带信号; 用于估计第一低和高频带噪声值的第一低频和高频带噪声估计单元; 用于根据所述第一低和高频带噪声值形成第一低频和高频带降噪信号的第一低频和高频带软阈值处理单元; 以及第一逆小波变换单元，用于对第一低频和高频带降噪信号执行逆小波变换。 本发明能够减少或去除亮度信号中的噪声。

公开(公告)号：US08411207B1

公开(公告)日：2013-04-02

申请号：US13339107

申请日：2011-12-28

申请人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

发明人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

IPC分类号： H04N9/77 ,  H04N9/78 ,  H04N5/21

CPC分类号： H04N5/142 ,  H04N9/78

摘要： A device for outputting a luminance signal and a method thereof are disclosed. The device includes an image smoothing unit, a band pass filter unit, and a summing unit. The image smoothing unit receives a 2D luminance signal and decreases a signal intensity of a component of the 2D luminance signal within a frequency range with respect to a carrier frequency of a chrominance component. The band pass filter unit passes the component of the 2D luminance signal within the frequency range with respect to the carrier frequency. The summing unit sums the output of the image smoothing unit and the output of the band pass filter unit to generate a resultant luminance signal. The present invention is capable of avoiding the occurrence of saw-tooth or sparkling situation caused by inharmonious switching between a 1D comb filter and a 2D comb filter.

摘要翻译： 公开了一种用于输出亮度信号的装置及其方法。 该装置包括图像平滑单元，带通滤波器单元和求和单元。 图像平滑单元接收2D亮度信号，并且在相对于色度分量的载波频率的频率范围内降低2D亮度信号的分量的信号强度。 带通滤波器单元在相对于载波频率的频率范围内通过2D亮度信号的分量。 求和单元将图像平滑单元的输出和带通滤波器单元的输出相加以产生合成的亮度信号。 本发明能够避免由1D梳状滤波器和2D梳状滤波器之间的不协调切换引起的锯齿或起泡状况的发生。

公开(公告)号：US20130335633A1

公开(公告)日：2013-12-19

申请号：US13527582

申请日：2012-06-19

申请人： Albert Hua Tai ,  Heng-Yi Liu ,  Feng-Chi Wei

发明人： Albert Hua Tai ,  Heng-Yi Liu ,  Feng-Chi Wei

IPC分类号： H04N5/21

CPC分类号： H04N5/213 ,  H04N5/142

摘要： An image sharpness device and a method for the same are disclosed. The image sharpness device includes a DC removal unit, at least one filter, at least one noise estimation unit, at least one soft threshold processing unit, and a summing unit. The DC removal unit receives a luminance signal of a field of a frame and removes a DC component of the luminance signal. The filter passes a component of an output of the DC removal unit within a predetermined frequency band. The noise estimation unit estimates a noise value of the field. The soft threshold processing unit forms a sharpness signal according to the noise value. The summing unit sums the luminance signal and the sharpness signal to output a resultant luminance signal. The present invention is capable of avoiding the problem that a noise in the luminance signal is enhanced.

摘要翻译： 公开了一种图像清晰度装置及其方法。 图像清晰度装置包括DC去除单元，至少一个滤波器，至少一个噪声估计单元，至少一个软阈值处理单元和求和单元。 DC去除单元接收帧的场的亮度信号并去除亮度信号的DC分量。 滤波器将DC去除单元的输出的分量通过预定频带。 噪声估计单元估计场的噪声值。 软阈值处理单元根据噪声值形成清晰度信号。 求和单元将亮度信号和清晰度信号相加，以输出合成的亮度信号。 本发明能够避免亮度信号中的噪声增强的问题。

公开(公告)号：US20130135432A1

公开(公告)日：2013-05-30

申请号：US13307891

申请日：2011-11-30

申请人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

发明人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

IPC分类号： H04N13/00

CPC分类号： H04N9/78

摘要： A device for outputting a chrominance signal and a method thereof are disclosed. The device includes a motion detection unit, a frame edge detection unit, and an output unit. The motion detection unit judges a motion degree of a frame. The frame edge detection unit judges whether a non-3D luminance signal is extracted from an edge of the frame. The output unit outputs one of a 3D chrominance signal and a non-3D chrominance signal as a resultant chrominance signal according to the motion degree which is judged by the motion detection unit and the judgment result of the frame edge detection unit. The present invention is capable of appropriately selecting the 3D chrominance signal and the non-3D chrominance signal when the frame is in the motion condition.

摘要翻译： 公开了一种用于输出色度信号的装置及其方法。 该装置包括运动检测单元，帧边缘检测单元和输出单元。 运动检测单元判断帧的运动程度。 帧边缘检测单元判断是否从帧的边缘提取非3D亮度信号。 输出单元根据由运动检测单元判断的运动程度和帧边缘检测单元的判断结果，输出3D色度信号和非3D色度信号之一作为合成色度信号。 本发明能够在帧处于运动状态时适当地选择3D色度信号和非3D色度信号。

公开(公告)号：US08421926B1

公开(公告)日：2013-04-16

申请号：US13290040

申请日：2011-11-04

申请人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

发明人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

IPC分类号： H04N9/78

CPC分类号： H04N9/78

摘要： A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.

摘要翻译： 公开了一种用于输出亮度信号的装置。 该装置包括色度判断单元，场观察单元和输出单元。 色度判断单元和场观察单元用于确定3D亮度信号是否受到影响。 输出单元根据色度判断单元和场观察单元的确定结果输出合成的亮度信号。 根据本发明，即使在运动条件中错误地使用3D梳状滤波器，也可以通过判断3D亮度信号和3D色度信号的特性来精确地获得合成的亮度信号。

公开(公告)号：US08760580B2

公开(公告)日：2014-06-24

申请号：US13527582

申请日：2012-06-19

申请人： Albert Hua Tai ,  Heng-Yi Liu ,  Feng-Chi Wei

发明人： Albert Hua Tai ,  Heng-Yi Liu ,  Feng-Chi Wei

IPC分类号： H04N5/14 ,  H04N5/00

CPC分类号： H04N5/213 ,  H04N5/142

摘要： An image sharpness device and a method for the same are disclosed. The image sharpness device includes a DC removal unit, at least one filter, at least one noise estimation unit, at least one soft threshold processing unit, and a summing unit. The DC removal unit receives a luminance signal of a field of a frame and removes a DC component of the luminance signal. The filter passes a component of an output of the DC removal unit within a predetermined frequency band. The noise estimation unit estimates a noise value of the field. The soft threshold processing unit forms a sharpness signal according to the noise value. The summing unit sums the luminance signal and the sharpness signal to output a resultant luminance signal. The present invention is capable of avoiding the problem that a noise in the luminance signal is enhanced.

摘要翻译： 公开了一种图像清晰度装置及其方法。 图像清晰度装置包括DC去除单元，至少一个滤波器，至少一个噪声估计单元，至少一个软阈值处理单元和求和单元。 DC去除单元接收帧的场的亮度信号并去除亮度信号的DC分量。 滤波器将DC去除单元的输出的分量通过预定频带。 噪声估计单元估计场的噪声值。 软阈值处理单元根据噪声值形成清晰度信号。 求和单元将亮度信号和清晰度信号相加，以输出合成的亮度信号。 本发明能够避免亮度信号中的噪声增强的问题。

公开(公告)号：US20130113998A1

公开(公告)日：2013-05-09

申请号：US13290040

申请日：2011-11-04

申请人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

发明人： Albert Hua Tai ,  Feng Chi Wei ,  Heng Yi Liu

IPC分类号： H04N9/78

CPC分类号： H04N9/78

摘要： A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.

摘要翻译： 公开了一种用于输出亮度信号的装置。 该装置包括色度判断单元，场观察单元和输出单元。 色度判断单元和场观察单元用于确定3D亮度信号是否受到影响。 输出单元根据色度判断单元和场观察单元的确定结果输出合成的亮度信号。 根据本发明，即使在运动条件中错误地使用3D梳状滤波器，也可以通过判断3D亮度信号和3D色度信号的特性来精确地获得合成的亮度信号。