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    • 1. 发明授权
    • Image processing apparatus and image processing method
    • 图像处理装置和图像处理方法
    • US07995146B2
    • 2011-08-09
    • US12561080
    • 2009-09-16
    • Eiichiro Tomonaga
    • Eiichiro Tomonaga
    • H04N9/74
    • G06T3/4053H04N7/0125H04N7/0127H04N7/014
    • According to one embodiment, an image processing apparatus includes a scaling converter, a luminance histogram detector, a determination module, and a super resolution processor. The scaling converter converts a first image signal to a second image signal having more pixels. The luminance histogram detector detects a luminance histogram. The determination module determines whether the second image signal includes a graphics image based on the luminance histogram. The super resolution processor converts the second image signal to a third image signal with a higher resolution than that of the second image signal, and performs sharpening based on the reference gain. When the second image signal includes a graphics image, the super resolution processor sets the gain of sharpening below the reference gain.
    • 根据一个实施例,图像处理装置包括缩放转换器,亮度直方图检测器,确定模块和超分辨率处理器。 缩放转换器将第一图像信号转换为具有更多像素的第二图像信号。 亮度直方图检测器检测亮度直方图。 确定模块基于亮度直方图确定第二图像信号是否包括图形图像。 超分辨率处理器将第二图像信号转换成具有比第二图像信号更高的分辨率的第三图像信号,并且基于参考增益执行锐化。 当第二图像信号包括图形图像时,超分辨率处理器将锐化的增益设置为低于参考增益。
    • 5. 发明申请
    • Video signal processing device and video signal processing method
    • 视频信号处理装置和视频信号处理方法
    • US20070046825A1
    • 2007-03-01
    • US11512172
    • 2006-08-30
    • Eiichiro TomonagaHimio Yamauchi
    • Eiichiro TomonagaHimio Yamauchi
    • H04N5/00H04N5/14
    • H04N5/21H04N5/144H04N9/646
    • A buffer delays an input luminance signal by a 1-frame period. A screen unit motion detection section determines whether an image indicated by the input luminance signal is a moving image or a static image by a screen unit, and outputs a gradual determination result from the static image to the moving image. A subtracter outputs a differential signal obtained by subtracting the input luminance signal from the luminance signal delayed by the 1-frame period. A pixel unit motion detector detects motion of a pixel unit and outputs a detection result by using a plurality of level values within a predetermined range. A limiter limits the differential signal in accordance with the determination result of the screen unit motion detector. An adder adds an output signal of the multiplier and the input luminance signal together.
    • 缓冲器将输入亮度信号延迟1帧周期。 屏幕单元运动检测部分确定由输入亮度信号指示的图像是否是屏幕单元的运动图像或静态图像,并且将静态图像的逐渐确定结果输出到运动图像。 减法器输出通过从延迟了1帧周期的亮度信号中减去输入亮度信号而获得的差分信号。 像素单元运动检测器检测像素单元的运动,并通过使用预定范围内的多个电平值来输出检测结果。 限幅器根据屏幕单元运动检测器的确定结果来限制差分信号。 加法器将乘法器和输入亮度信号的输出信号加在一起。
    • 7. 发明授权
    • Video signal processing device and video signal processing method
    • 视频信号处理装置和视频信号处理方法
    • US07817209B2
    • 2010-10-19
    • US11512172
    • 2006-08-30
    • Eiichiro TomonagaHimio Yamauchi
    • Eiichiro TomonagaHimio Yamauchi
    • H04N9/78
    • H04N5/21H04N5/144H04N9/646
    • A buffer delays an input luminance signal by a 1-frame period. A screen unit motion detection section determines whether an image indicated by the input luminance signal is a moving image or a static image by a screen unit, and outputs a gradual determination result from the static image to the moving image. A subtracter outputs a differential signal obtained by subtracting the input luminance signal from the luminance signal delayed by the 1-frame period. A pixel unit motion detector detects motion of a pixel unit and outputs a detection result by using a plurality of level values within a predetermined range. A limiter limits the differential signal in accordance with the determination result of the screen unit motion detector. An adder adds an output signal of the multiplier and the input luminance signal together.
    • 缓冲器将输入亮度信号延迟1帧周期。 屏幕单元运动检测部分确定由输入亮度信号指示的图像是否是屏幕单元的运动图像或静态图像,并且将静态图像的逐渐确定结果输出到运动图像。 减法器输出通过从延迟了1帧周期的亮度信号中减去输入亮度信号而获得的差分信号。 像素单元运动检测器检测像素单元的运动,并通过使用预定范围内的多个电平值来输出检测结果。 限幅器根据屏幕单元运动检测器的确定结果来限制差分信号。 加法器将乘法器和输入亮度信号的输出信号加在一起。
    • 8. 发明申请
    • Image Processing Apparatus and Image Processing Method
    • 图像处理装置和图像处理方法
    • US20100214472A1
    • 2010-08-26
    • US12561080
    • 2009-09-16
    • Eiichiro Tomonaga
    • Eiichiro Tomonaga
    • H04N7/01G06K9/00
    • G06T3/4053H04N7/0125H04N7/0127H04N7/014
    • According to one embodiment, an image processing apparatus includes a scaling converter, a luminance histogram detector, a determination module, and a super resolution processor. The scaling converter converts a first image signal to a second image signal having more pixels. The luminance histogram detector detects a luminance histogram. The determination module determines whether the second image signal includes a graphics image based on the luminance histogram. The super resolution processor converts the second image signal to a third image signal with a higher resolution than that of the second image signal, and performs sharpening based on the reference gain. When the second image signal includes a graphics image, the super resolution processor sets the gain of sharpening below the reference gain.
    • 根据一个实施例,图像处理装置包括缩放转换器,亮度直方图检测器,确定模块和超分辨率处理器。 缩放转换器将第一图像信号转换为具有更多像素的第二图像信号。 亮度直方图检测器检测亮度直方图。 确定模块基于亮度直方图确定第二图像信号是否包括图形图像。 超分辨率处理器将第二图像信号转换成具有比第二图像信号更高的分辨率的第三图像信号,并且基于参考增益执行锐化。 当第二图像信号包括图形图像时,超分辨率处理器将锐化的增益设置为低于参考增益。