A New Design of Embedded Processor for Image Coding

Based on the design of MIPS[1], an novel 32-bit CPU is proposed, whose structure is simple and efficient for image processing. The specially designed CPU can be embedded into video encoder or other multimedia processor, and work well, it can also be used to do DWT (digital wavelet transform) with only few instructions. Furthermore, we take good advantage of the same hardware model to implement more complicated multimedia algorithms at a high speed. Compared with the fixed ASIC mode of image coding, the reconfigurable CPU circuit adopted in this paper is more flexible and has low cost. The experimental results prove the validity and practicability of our design.