Image Processing Device And Method

图像处理设备和方法

  • Inventors: SATO KAZUSHI
  • Assignees: 索尼公司
  • Publication Date: February 01, 2012
  • Publication Number: CN-102342108-A

Abstract

The present invention relates to an image processing device and method which enable increase in compressed information to be suppressed, and also enable prediction precision to be improved. A precision flag generating unit 93 compares the precision parameters of the motion vector information of a current block from a current motion vector precision determining unit 91, and the precision parameters of the motion vector information of an adjacent block from an adjacent motion vector precision determining unit 92, and generates a precision flag indicating whether the precision of the motion vector information of the current block, and the precision of the motion vector information of the adjacent block agree or differ. This precision flag is output to a lossless encoding unit 66 and encoded along with motion vector information mvd E and so forth in the event that a prediction image in the optimal inter prediction mode has been selected by a prediction image selecting unit 77. The present invention may be applied to an image encoding device which performs encoding using the H.264/AVC system, for example.
公开了能够抑制压缩信息的增加并且还能够提高预测精度的图像处理设备和方法。精度标志生成单元(93)将来自当前运动向量精度确定单元(91)的当前块的运动向量信息的精度参数与来自相邻运动向量精度确定单元(92)的相邻块的运动向量信息的精度参数相比较,并且生成指示当前块的运动向量信息的精度与相邻块的运动向量信息的精度是一致还是不同的精度标志。在最优帧间预测模式中的预测图像已由预测图像选择单元(77)选择的情况中,该精度标志与运动向量信息mvdE等一起被输出给无损编码单元(66)并被编码。本发明可以应用于例如使用H.264/AVC系统执行编码的图像编码设备。

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