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SPATIAL RESOLUTION CONVERSION METHOD OF IMAGE SIGNAL IN IMAGE COMPRESSION SYSTEM BASED ON MOTION COMPENSATION

机译:基于运动补偿的图像压缩系统中图像信号的空间分辨率转换方法

摘要

A spatial resolution conversion method of a video signal in a video compression system based on motion compensation is provided to guarantee stability of resolution conversion, avoid implementation of a complex logic and greatly improve image quality. It is determined whether a frame of a video signal refers to another frame. Resolution of the video signal is converted by the first conversion method if the frame of the video signal does not refer to another frame. The resolution of the video signal is converted by one of the first and second conversion methods according to size of a motion vector if the frame of the video signal refers to another frame. The motion vector indicates variation of a block in the frame which refers to another frame with respect to a block in another frame to which the frame refers.
机译:提供一种基于运动补偿的视频压缩系统中视频信号的空间分辨率转换方法,以保证分辨率转换的稳定性,避免实现复杂的逻辑并大大提高图像质量。确定视频信号的帧是否参考另一帧。如果视频信号的帧不参考另一帧,则通过第一转换方法来转换视频信号的分辨率。如果视频信号的帧参考另一帧,则根据运动矢量的大小通过第一和第二转换方法之一来转换视频信号的分辨率。运动矢量指示参考另一帧的帧中的块相对于该帧所参考的另一帧中的块的变化。

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