| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve image quality of a decoded image, and further to also improve image quality of an image to be referred to from now in motion compensation. <P>SOLUTION: A mosquito noise filter 114 is disposed within a motion compensation loop comprising at least a computation unit 13, an orthogonal transformation unit 111, a quantization unit 112, an inverse quantization unit 18, an inverse orthogonal transformation unit 19, a computation unit 20, a frame memory 22, a switch 23, a motion prediction and compensation unit 25, and a prediction image selection unit 26. The mosquito noise filter 114 employs information from the orthogonal transformation unit 111, the quantization unit 112, and a reversible coding unit 113 to determine whether to apply filtering for eliminating mosquito noise. The present invention may be applied to, for example, an image coding device that codes images based on H.264/AVC system. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
