| 摘要 |
<p>A method for generating a stream of image data which is to be transmitted via a data channel, in particular a mobile radio channel. In this method, the images are divided into a quantity of macroblocks. In addition, the image information elements are divided into classes of information elements of the same kind. The image data of at least a portion of the classes are inserted into the stream by macroblocks. In a deviation from the proposed H.263 standard, the image data in each macroblock which have a fixed word length, in particular the DQUANT and INTRADC values, are combined into a class (ADMIN+DC-INTRA) provided for them, and are inserted consecutively into the stream with no variable-length image data being transmitted between them. A method for analyzing a stream of data is also provided.In this, a first quantity of coded macroblocks is decoded from the end with the bits of the image data transmitted first, and a second quantity of coded macroblocks is decoded from the end with the bits of the class transmitted last.</p> |
