Design of multiprocessor DSP chip set for superhigh-definition image  processing

Tatsuya Fujii; Tomoko Sawabe; Mitsuru Nomura; Tetsuro Fujii; Sadayasu Ono

doi:10.1117/12.131430

1 November 1992 Design of multiprocessor DSP chip set for superhigh-definition image processing

Tatsuya Fujii, Tomoko Sawabe, Mitsuru Nomura, Tetsuro Fujii, Sadayasu Ono

Proceedings Volume 1818, Visual Communications and Image Processing '92; (1992) https://doi.org/10.1117/12.131430
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

This paper details the design of a DSP chip set for NOVI-III, a massively parallel digital signal processing system for super high definition (SHD) image coding. In the first step, achieving real-time SHD image processing, we implemented the JPEG coding algorithm on the highly parallel DSP system called NOVI-II HiPIPE, and evaluated its processing performance. The result shows that a real-time CODEC must have an average computational performance of over 100 GFlops (floating point operations) to process SHD motion images. Based on our experience of still SHD image coding, a new DSP chip set is being designed for NOVI-III. The chip set consists of three main chips. The first chip is a vector processor that, in its original form, had a peak performance of 120 MFlops. It is being redesigned to achieve a peak performance of 540 MFlops with 0.5 micrometers fabrication technology. Second is an intercommunication network switch that has six 400 Mbps data links. Third is a RISC type DSP core which controls the vector processor, communication switch and internal memories. This DSP core also has a special function that efficiently performs the bit operations required by the Huffman coding process.

Citation Download Citation

Tatsuya Fujii, Tomoko Sawabe, Mitsuru Nomura, Tetsuro Fujii, and Sadayasu Ono "Design of multiprocessor DSP chip set for superhigh-definition image processing", Proc. SPIE 1818, Visual Communications and Image Processing '92, (1 November 1992); https://doi.org/10.1117/12.131430

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