| 摘要 |
A computation unit (1) subtracts a predicted image from an input image. An orthogonal transformation unit (2) performs an orthogonal transformation on the output from the computation unit (1). A quantization unit (3) quantizes the output from the orthogonal transformation unit (2). An encoding unit (4) encodes the output from the quantization unit (3). A prediction mode determination unit (11) determines a different prediction mode in accordance with the picture type from the input image, that is, an I-picture, P-picture, or B-picture. |
