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    • 3. 发明授权
    • Method and apparatus for expanding bit resolution using local information of image
    • 使用图像的局部信息来扩展位分辨率的方法和装置
    • US07649652B2
    • 2010-01-19
    • US11544620
    • 2006-10-10
    • Seung-sin LeeDu-sik ParkAron BaikChang-yeong Kim
    • Seung-sin LeeDu-sik ParkAron BaikChang-yeong Kim
    • H04N1/409
    • G06T3/40
    • A method and apparatus for expanding bit resolution using local information of an image receives an input image. First, second and third threshold value used to enhance bit resolution, to detect a texture and to detect a pattern, respectively, are determined considering global information of the input image. A texture existing in a mask region composed of surrounding pixels within a predetermined range around a current pixel is determined using the second threshold value. A regularly repeated pattern existing in the mask region is determined using the third threshold value if no texture exists in the mask region. The first threshold value is decreased if a texture or pattern exists in the mask region. Values of mask region pixels are adjusted depending on the first threshold value, and bit resolution of the current pixel value is enhanced using a resultant value obtained by filtering the adjusted pixel values.
    • 使用图像的局部信息来扩展位分辨率的方法和装置接收输入图像。 考虑输入图像的全局信息,确定用于增强比特分辨率,分别检测纹理和检测图案的第一,第二和第三阈值。 使用第二阈值确定存在于由当前像素周围的预定范围内的周围像素构成的掩模区域中的纹理。 如果掩模区域中没有纹理,则使用第三阈值来确定存在于掩模区域中的规则重复图案。 如果掩模区域中存在纹理或图案,则第一阈值减小。 根据第一阈值调整掩模区域像素的值,并且使用通过对调整后的像素值进行滤波而获得的合成值来增强当前像素值的位分辨率。
    • 8. 发明申请
    • Method and apparatus for expanding bit resolution using local information of image
    • 使用图像的局部信息来扩展位分辨率的方法和装置
    • US20070081193A1
    • 2007-04-12
    • US11544620
    • 2006-10-10
    • Seung-sin LeeDu-sik ParkAron BaikChang-yeong Kim
    • Seung-sin LeeDu-sik ParkAron BaikChang-yeong Kim
    • H04N1/409
    • G06T3/40
    • A method and apparatus for expanding bit resolution using local information of an image receives an input image. First, second and third threshold value used to enhance bit resolution, to detect a texture and to detect a pattern, respectively, are determined considering global information of the input image. A texture existing in a mask region composed of surrounding pixels within a predetermined range around a current pixel is determined using the second threshold value. A regularly repeated pattern existing in the mask region is determined using the third threshold value if no texture exists in the mask region. The first threshold value is decreased if a texture or pattern exists in the mask region. Values of mask region pixels are adjusted depending on the first threshold value, and bit resolution of the current pixel value is enhanced using a resultant value obtained by filtering the adjusted pixel values.
    • 使用图像的局部信息来扩展位分辨率的方法和装置接收输入图像。 考虑输入图像的全局信息,确定用于增强比特分辨率,分别检测纹理和检测图案的第一,第二和第三阈值。 使用第二阈值确定存在于由当前像素周围的预定范围内的周围像素构成的掩模区域中的纹理。 如果掩模区域中没有纹理,则使用第三阈值来确定存在于掩模区域中的规则重复图案。 如果掩模区域中存在纹理或图案,则第一阈值减小。 根据第一阈值调整掩模区域像素的值,并且使用通过对调整后的像素值进行滤波而获得的合成值来增强当前像素值的位分辨率。
    • 9. 发明授权
    • Apparatus and method of up-converting frame rate of decoded frame
    • 帧转换帧速率的装置和方法
    • US08457205B2
    • 2013-06-04
    • US11946203
    • 2007-11-28
    • Aron BaikDu-sik Park
    • Aron BaikDu-sik Park
    • H04N7/26
    • H04N7/014H04N7/0127H04N19/513H04N19/587H04N19/61
    • An apparatus and method of up-converting a frame rate using frames that are decoded from a video decoder and motion information, the apparatus including: a motion vector resampling unit to resample a motion vector for the interpolated frame by filtering a motion vector of a current block using the motion vector of the current block and motion vectors of adjacent blocks in the decoded frame; a motion compensating unit to compensate a motion of the decoded frame by the resampled motion vector to produce the interpolated frame; and a switch to selectively output one of the decoded frame and the interpolated frame according to the sequential order of the frames.
    • 一种使用从视频解码器解码的帧和运动信息对帧速率进行上变频的装置和方法,所述装置包括:运动矢量重采样单元,用于通过对当前帧的运动矢量进行滤波来重新采样内插帧的运动矢量 使用当前块的运动矢量和解码帧中的相邻块的运动矢量; 运动补偿单元,用于通过重采样运动矢量补偿解码帧的运动,以产生内插帧; 以及根据帧的顺序选择性地输出解码帧和插值帧之一的开关。