Devices and methods for intra- encoding an image block , the storage medium carrying the intra- coded image block , and the use of a processing device for decoding an intra- coded image blocks

摘要

The method uses the processing means , by using the quantization parameter values are quantized transform form of residual intra prediction of the image block , the step of encoding the converted form quantized , further use the processing means is , the method comprising the steps of coding costs already quantization parameter value and the corresponding used to determined to be available in the storage means , quantization parameter values that have already been used , similar to the image block are , or quantization parameter values already used , the steps , which have been already used to quantize the other image blocks having the same complexity as the image block , the corresponding coding cost , and target bit rate and using , and a step of determining the quantization parameter values . Therefore, it is possible to determine the quantization parameter value such flicker artifacts are avoided .