Title :
A hierarchical multiprocessor architecture based on heterogeneous processors for video coding applications
Author :
Gehrke, W. ; Hoffer, R. ; Pirsch, P.
Author_Institution :
Lab. fur Informationstechnol., Hannover Univ., Germany
Abstract :
A heterogenous processor architecture for video coding applications based on hybrid coding schemes is proposed. To support high computational power and architectural flexibility, the processor consists of function oriented and programmable modules. The key components of the architecture are a RISC core which performs control tasks and module synchronisation, a programmable module for tasks like DCT, quantization and filtering and a function oriented blockmatching module for motion estimation. Applying a 0.6 micron CMOS process, a single chip video codec for CIF-30 Hz video signals can be implemented. For higher video source rates several processors can be combined to a multiprocessor system
Keywords :
CMOS digital integrated circuits; VLSI; digital signal processing chips; hierarchical systems; motion estimation; multichip modules; multiprocessing systems; quantisation (signal); reduced instruction set computing; synchronisation; video codecs; 0.6 micron; 30 Hz; CIF-30 Hz video signals; CMOS process; DCT; RISC core; architectural flexibility; blockmatching module; computational power; control tasks; filtering; function oriented modules; heterogeneous processors; hierarchical multiprocessor architecture; hybrid coding; module synchronisation; motion estimation; multiprocessor system; programmable module; programmable modules; quantization; single chip video codec; source rates; video coding; CMOS process; Computer architecture; Discrete cosine transforms; Filtering; Motion control; Motion estimation; Quantization; Reduced instruction set computing; Video codecs; Video coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389633
