Quality-driven design by bitwidth optimization for video applications

ABSTRACT

This paper presents a novel system-level design methodology, called quality-driven design for video applications by bitwidth optimization (QDDV). An output quality adaptive approach based on a forward and a backward propagation technique, which are effective bitwidth analysis and output-quality-based bitwidth analysis are also presented for variable bitwidth optimization. In order to illustrate the potential of the proposed methodology, MPEG-2 video is used as the driver application. Experimental results show the effectiveness of the methodology.

REFERENCES

• 1: Luc Sèmèria , Renu Mehra , Barry Pangrle , Arjuna Ekanayake , Andrew Seawright , Daniel Ng, RTL c-based methodology for designing and verifying a multi-threaded processor, Proceedings of the 39th conference on Design automation, June 10-14, 2002, New Orleans, Louisiana, USA [doi>10.1145/513918.513951]
• 2: Markus Willems , Volker Bürsgens , Holger Keding , Thorsten Grötker , Heinrich Meyr, System level fixed-point design based on an interpolative approach, Proceedings of the 34th annual conference on Design automation, p.293-298, June 09-13, 1997, Anaheim, California, United States [doi>10.1145/266021.266105]
• 3: Marc-Andre Cantin and Yvon Savaria, "An Automatic Word Length Determination Method," Proc. of The IEEE International Symposium on Circuit and Systems, V53--V56, May. 2001.
• 4: H. Yasuura, H. Tomiyama, A. Inoue and F. N. Eko, "Embedded System Design Using Soft-core Processor and Valen-C," IPSJ. Info. Sci. Eng. vol. 14, pp. 587--603, Sept. 1998.
• 5: S. Mahlke, R. Ravindran, M. Schansker, R. Schreiber and T. Sherwood, "Bitwidth Congnizant Architecture Synthesus of Custom Hardware Accelerators," IEEE Transactions on Computer-aided Design of Integrated Circuit and Systems, Vol.20, No. 11, Nov. 2001.
• 6: David Brooks , Margaret Martonosi, Dynamically Exploiting Narrow Width Operands to Improve Processor Power and Performance, Proceedings of the 5th International Symposium on High Performance Computer Architecture, p.13, January 09-12, 1999
• 7: H. Yamashita , H. Yasnura , F. N. Eko , Cao Yun, Variable size analysis and validation of computation quality, Proceedings of the IEEE International High-Level Validation and Test Workshop (HLDVT'00), p.95, November 08-10, 2000
• 8: Mark Stephenson , Jonathan Babb , Saman Amarasinghe, Bidwidth analysis with application to silicon compilation, Proceedings of the ACM SIGPLAN 2000 conference on Programming language design and implementation, p.108-120, June 18-21, 2000, Vancouver, British Columbia, Canada
• 9: Yun Cao , Hiroto Yasuura, A system-level energy minimization approach using datapath width optimization, Proceedings of the 2001 international symposium on Low power electronics and design, p.231-236, August 2001, Huntington Beach, California, United States [doi>10.1145/383082.383142]
• 10: Yun Cao , Hiroyuki Tomiyama , Takanori Okuma , Hiroto Yasuura, Data memory design considering effective bitwidth for low-energy embedded systems, Proceedings of the 15th international symposium on System Synthesis, October 02-04, 2002, Kyoto, Japan [doi>10.1145/581199.581245]
• 11: K. Kum, and W. Y. Sung, "Combined Word-Length Optimization and High-Level Synthesis of Digital Signal Processing Systems," IEEE Transactions on Computer-aided Design of Integrated Circuit and Systems, Vol.20, No.8, Aug. 2001
• 12: Clark N. Taylor, Sujit Dey, and Debashis Panigrahi, "Energy/Latency/Image Quality Tradeoffs in Enabling Mobile Multimedia Communication," Proc. of Software Radio: Technologies and Services, Enrico Del Re, Springer Verlag Ltd., pp. 55--66, January 2001.
• 13: Barry Shackleford , Mitsuhiro Yasuda , Etsuko Okushi , Hisao Koizumi , Hiroyuki Tomiyama , Hiroto Yasuura, Memory-CPU size optimization for embedded system designs, Proceedings of the 34th annual conference on Design automation, p.246-251, June 09-13, 1997, Anaheim, California, United States [doi>10.1145/266021.266083]
• 14: CCIR, "Rec. 500-2, Method for the subjective assessment of the quality of television pictures," Recommendations and reports of the CCIR, Geneva, 1982.
• 15: Yun Cao and Hiroto Yasuura, "Video Quality Modeling for Quality-driven Design," the 10th Workshop on System and System Integration of Mixed Technologies, Oct. 2001.