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    • 4. 发明授权
    • Image processing apparatus, image processing method, program, and recording medium
    • 图像处理装置,图像处理方法,程序和记录介质
    • US08750635B2
    • 2014-06-10
    • US13614502
    • 2012-09-13
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • G06K9/36
    • G06T5/002G06T5/50G06T7/223G06T2207/10016H04N5/21H04N5/23267
    • There is provided an image processing apparatus including a local-motion-compensation-processing unit which generates a local-motion-compensation image by detecting a local motion vector, which is a motion vector for each block forming an image, from a standard image and a reference image, and performing motion compensation on the reference image using the local motion vector, a global-motion-compensation-processing unit which generates a global-motion-compensation image by calculating a global motion vector, which is a motion vector for an entire image between the standard image and the reference image, using the local motion vector, and performing motion compensation on the reference image using the global motion vector, and a blend processing unit which generates a blend-motion-compensation image by combining a pixel value of a pixel in the local-motion-compensation image and a pixel value of a pixel in the global-motion-compensation image based on a noise intensity for a luminance value of an image.
    • 提供了一种图像处理装置,其包括局部运动补偿处理单元,其通过从标准图像检测作为形成图像的每个块的运动矢量的局部运动矢量来生成局部运动补偿图像,以及 参考图像,并使用局部运动矢量对参考图像执行运动补偿;全局运动补偿处理单元,其通过计算全局运动补偿图像来生成全局运动补偿图像,该全局运动补偿图像是用于 使用局部运动矢量在标准图像和参考图像之间的整个图像,以及使用全局运动矢量对参考图像执行运动补偿;以及混合处理单元,其通过组合像素值来生成混合运动补偿图像 的局部运动补偿图像中的像素和全局运动补偿图像中的像素的像素值,基于亮度的噪声强度 图像的值。
    • 5. 发明申请
    • IMAGE PROCESSING APPARATUS AND METHOD, PROGRAM AND RECORDING MEDIUM
    • 图像处理装置和方法,程序和记录介质
    • US20130084017A1
    • 2013-04-04
    • US13608267
    • 2012-09-10
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • G06K9/68
    • H04N19/86H04N5/145
    • An image processing apparatus includes a motion estimation processing section that detects a motion vector of block units which configure an image from a standard image and a reference image; a motion compensation processing section that produces a motion compensation image by performing motion compensation of the reference image using the motion vector; a difference calculation section that calculates a difference value between pixel values of a pixels of the standard image and pixel values of pixels of the motion compensation image; and a threshold value processing section that determines whether block noise is contained in the motion compensation image of a block unit or not by performing a threshold value processing on the difference value.
    • 一种图像处理装置,包括运动估计处理部,其检测从标准图像和参考图像构成图像的块单位的运动矢量; 运动补偿处理部,其通过使用所述运动矢量进行所述参考图像的运动补偿来生成运动补偿图像; 差分计算部分,计算标准图像的像素的像素值和运动补偿图像的像素的像素值之间的差值; 以及阈值处理部,其通过对所述差值执行阈值处理来判定块单位的运动补偿图像中是否包含块噪声。
    • 6. 发明申请
    • IMAGE PROCESSING DEVICE AND METHOD, PROGRAM, AND RECORDING MEDIUM
    • 图像处理设备和方法,程序和记录介质
    • US20140226726A1
    • 2014-08-14
    • US14343062
    • 2012-10-05
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • Masatoshi YokokawaTakefumi NagumoJun Luo
    • H04N19/55
    • H04N19/55H04N19/117H04N19/136H04N19/167H04N19/182H04N19/51H04N19/82H04N19/86
    • The present technique relates to an image processing device, an image processing method, a program, and a recording medium that enable more accurate block noise correction without degradation of image quality.A motion predicting unit detects, from a criteria image and a reference image, the motion vector of each of blocks constituting an image. A motion compensating unit generates a motion-compensated image by performing motion compensation on the reference image, using the motion vectors. A correction value calculating unit calculates a correction value for correcting the pixel value of a current pixel in a current block in the motion-compensated image based on a boundary difference value between the criteria image and the motion-compensated image, the boundary difference value being a difference value with respect to the pixel value of a boundary pixel in a boundary portion adjacent to an adjacent block in the current block. An adding unit adds the correction value to the pixel value of the current pixel in the motion-compensated image. The present technique can be applied to image processing devices.
    • 本技术涉及能够在不降低图像质量的情况下实现更精确的块噪声校正的图像处理装置,图像处理方法,程序和记录介质。 运动预测单元从标准图像和参考图像检测构成图像的每个块的运动矢量。 运动补偿单元通过使用运动矢量对参考图像执行运动补偿来生成运动补偿图像。 校正值计算单元基于标准图像和运动补偿图像之间的边界差值,计算用于校正运动补偿图像中的当前像素中的当前像素的像素值的校正值,边界差值为 相对于当前块中与相邻块相邻的边界部分中的边界像素的像素值的差值。 添加单元将校正值与运动补偿图像中的当前像素的像素值相加。 本技术可以应用于图像处理装置。