公开(公告)号：US20060203913A1

公开(公告)日：2006-09-14

申请号：US11362920

申请日：2006-02-28

申请人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinoy

发明人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinoy

IPC分类号： H04N11/02 ,  H04N11/04 ,  H04N7/12 ,  H04B1/66

CPC分类号： H04N19/186 ,  H04N19/103 ,  H04N19/107 ,  H04N19/147 ,  H04N19/176 ,  H04N19/51 ,  H04N19/593

摘要： A prediction image generation method and apparatus using a single coding mode for all color components and image and video encoding and decoding methods and apparatuses using the same are provided. The prediction image generation apparatus includes: a spatial prediction image generation unit applying an identical prediction direction for each image component in an original image composed of at least two image components, and obtaining a spatial prediction image from a pixel spatially close to a pixel block of a predetermined size of a current frame; a temporal prediction image generation unit applying an identical block size, motion vector, and motion interpolation method for each image component in an original image composed of at least two image components, and obtaining a temporal prediction image by estimating motion in units of blocks of a predetermined size between a previous frame and a current frame of each of the image components; an encoding mode selection unit selecting an encoding mode by using the spatial prediction image and the temporal prediction image; and a single mode prediction image generation unit generating a prediction image by identically applying the encoding mode selected in the encoding mode selection unit to each component. By increasing the redundancy of information between prediction error signals of color components, the encoding efficiency can be enhanced in the method and apparatus.

摘要翻译： 提供了一种用于所有颜色分量的单一编码模式的预测图像生成方法和装置，以及使用其的图像和视频编码和解码方法和装置。 预测图像生成装置包括：空间预测图像生成单元，对于由至少两个图像分量构成的原始图像中的每个图像分量应用相同的预测方向，并且从空间上靠近像素块的像素获得空间预测图像 当前帧的预定大小; 时间预测图像生成单元，对于由至少两个图像分量构成的原始图像中的每个图像分量应用相同的块大小，运动矢量和运动内插方法，并且通过以单位为单位估计运动来获得时间预测图像 每个图像分量的先前帧和当前帧之间的预定大小; 编码模式选择单元，通过使用空间预测图像和时间预测图像来选择编码模式; 以及通过将编码模式选择单元中选择的编码模式相同地应用于每个分量来生成预测图像的单模式预测图像生成单元。 通过增加颜色分量的预测误差信号之间的信息的冗余度，可以在方法和装置中提高编码效率。