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    • 14. 发明授权
    • Image processing apparatus and image processing method
    • 图像处理装置和图像处理方法
    • US08447131B2
    • 2013-05-21
    • US12829538
    • 2010-07-02
    • Yukihiko Sakashita
    • Yukihiko Sakashita
    • G06K9/40G06K9/32H04N7/01
    • H04N5/208G09G3/36G09G2320/0252G09G2320/0276
    • A characteristic image detection interpolation unit performs interpolation processing for increasing the luminance value in low-luminance area which is partly present in an input image. A minimum value filter unit executes minimum value filter processing on an image subjected to the interpolation processing, and a low-pass filter performs low-pass filter processing on the image subjected to the minimum value filter processing, thereby generating a low-frequency component image. A subtracter generates a high-frequency component image by subtracting the low-frequency component image from the input image. A coefficient multiplier adds the luminance value of the high-frequency component image to the input image by a preset ratio K1, thereby generating a high-frequency component enhanced image. A selector alternately outputs the low-frequency component image and the high-frequency component enhanced image.
    • 特征图像检测插值单元执行用于增加输入图像中部分存在的低亮度区域中的亮度值的内插处理。 最小值滤波器单元对经过内插处理的图像执行最小值滤波处理,并且低通滤波器对经过最小值滤波处理的图像执行低通滤波处理,从而生成低频分量图像 。 减法器通过从输入图像中减去低频分量图像来生成高频分量图像。 系数乘法器将高频分量图像的亮度值以预设比率K1输入到输入图像,从而生成高频分量增强图像。 选择器交替地输出低频分量图像和高频分量增强图像。
    • 15. 发明授权
    • Image processing apparatus and image processing method
    • 图像处理装置和图像处理方法
    • US08174624B2
    • 2012-05-08
    • US12724913
    • 2010-03-16
    • Yukihiko Sakashita
    • Yukihiko Sakashita
    • H04N7/00H04N11/00H04N5/00H04N5/14H04N3/14G06K9/40G09G3/30
    • H04N9/3182G09G3/001G09G3/2022G09G5/363G09G2310/04G09G2320/0261
    • An apparatus outputs an image signal for each frame, divides a frame into sub-frames, acquires a first signal of high frequency components and a second signal of low frequency components of a sub-frame, and generates a third signal by multiplying the second signal by K. If a fourth signal obtained by adding the third signal to the first signal falls within a predetermined range, the apparatus outputs the third signal, whereas if the fourth signal includes a portion exceeding the range, the apparatus outputs a signal obtained by correcting the third signal. The apparatus also generates a composition signal of the output signal and the first signal and a fifth signal by multiplying the third signal by a correction amount y of the third signal. As a sub-frame of interest, either the composition signal or the fifth signal is output.
    • 装置输出每帧的图像信号,将帧划分成子帧,获取高频分量的第一信号和子帧的低频分量的第二信号,并通过将第二信号 如果通过将第三信号添加到第一信号而获得的第四信号落在预定范围内,则装置输出第三信号,而如果第四信号包括超过该范围的部分,则装置输出通过校正获得的信号 第三个信号。 该装置还通过将第三信号乘以第三信号的校正量y来产生输出信号和第一信号的合成信号和第五信号。 作为感兴趣的子帧,输出合成信号或第五信号。
    • 16. 发明申请
    • VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD
    • 视频处理设备和视频处理方法
    • US20110170009A1
    • 2011-07-14
    • US12970076
    • 2010-12-16
    • Shinichi UemuraYukihiko Sakashita
    • Shinichi UemuraYukihiko Sakashita
    • H04N9/76
    • G09G3/3611G09G3/3614G09G2320/0257G09G2340/0435
    • A video processing apparatus in which image quality degradation, such as burn-in, is prevented while reducing motion blurs by implementing pseudo-impulse driving. By combining high-frequency image data and low-frequency image data at the immediately preceding sub-frame at a first composite ratio α, image data is generated as first-sub-frame image data. By combining low-frequency image data and high-frequency image data at a second composite ratio 1−α, image data is generated as second-sub-frame image data. Then, the second-sub-frame image data is output with their polarity inverted with respect to the first-sub-frame image data. The ratio α is gradually decreased frame by frame at the first frame group, and the ratio α is gradually increased frame by frame at the second frame group subsequent to the first frame group.
    • 通过实施伪脉冲驱动来减少运动模糊,防止诸如老化等图像质量下降的视频处理装置。 通过以第一合成比率α将紧邻在前的子帧的高频图像数据和低频图像数据组合,生成图像数据作为第一子帧图像数据。 通过以第二合成比1-α组合低频图像数据和高频图像数据,生成图像数据作为第二子帧图像数据。 然后,第二子帧图像数据以与第一子帧图像数据相反的极性被输出。 比率α逐帧逐帧降低,第一帧组之后的第二帧组逐帧增加比率α。