| 摘要 |
The invention relates to a method and a device for the scalable coding of image information, especially video image information. According to said method, in a first coding step comprising an entropy coding (EC), an input signal (IS) containing the image information is converted into a first coded signal comprising a plurality of code words (C1, C2,..., CN). A decoded value is associated with each code word (C1, C2,..., CN) and the first coded signal is converted into a second coded signal in a second coding step (SC). The first coded signal is compressed according to a desired transfer rate for the transmission of the image information and the compressed signal forms the second coded signal, the code words of the first coded signal being shortened and a representative being associated with each shortened code word. |
