| 摘要 |
<p>It is possible to always maintain a preferable image quality regardless of the target bit rate of encoding. An encoding device (210) includes: a conversion unit (103) for converting image data for displaying a dynamic image into a frequency component coefficient in a predetermined unit, a decision unit (212) for deciding a matrix for defining the frequency bit allocation characteristic according to the resolution of the dynamic image and the encoding target bit rate specified in advance, a quantization unit (204) for quantizing each of the coefficients according to the decided matrix and generating a quantization value, and an encoding unit (105) for encoding the quantization value and generating encoded dynamic image data.</p> |
