| 摘要 |
<p>An orthogonal transform coefficient D6 which is image data to be encoded is created by carrying out a predetermined data conversion of a frame image D1 (step S100), and coded data D7 is created by arithmetically encoding the orthogonal transform coefficient D6 by using a predetermined probability table (S103). In performing a variable-length encoding for creating the coded data D7, it is set whether or not the probability table is initialized for each slice layer, and a flag showing the presence/absence of the initialization is added to the header of a predetermined layer. In such a way, an image encoding method enabling a probability to be preferably set for all the coded data and enabling an improvement of the efficiency of data compression of coded data, an image decoding method, an image encoder, an image decoder, a program, a computer data signal, and an image transmission system are realized.</p> |
