| 摘要 |
<p>A method and apparatus for adjusting encoding parameters in accordance with a perceptual metric derived from analyzing the contents of an image or video being coded (104). Namely, the perceptual metric is produced (112) by comparing an original image (102) (or image sequence) to a reconstructed image (110) (or image sequence) and processing the comparison results using a quantitative perceptual difference measure (112). The difference measure results in a perceptual metric representing the 'fidelity' of the reconstructed image. The metric is used to control the encoding parameters (108) such that the coding of the image can be iteratively adjusted. Furthermore, the method and apparatus is used to provide an automated steerable image compression system.</p> |
