TY - GEN
T1 - A balanced vector-quantization processor eliminating redundant calculation for real-time motion picture compression
AU - Konda, Masahiro
AU - Nakayama, Takahiro
AU - Miyamoto, Naoto
AU - Ohmi, Tadahiro
PY - 2007/12/1
Y1 - 2007/12/1
N2 - A balanced vector-quantization (VQ) processor has been developed for real-time encoding of motion pictures (640x480 pixels) by using FPGA. The VQ processor employs a search algorithm for VQ encoding to reduce computational complexity and hardware volume. And this VQ processor employs a new architecture of distance calculation unit. By adopting the pipeline composition of each element, the number of distance calculation units could be reduced compared with fully parallel hardware architecture. Besides, in order to reduce memory size of codebook, 2048 template vectors consist of 512 basic template vectors, and the distance calculation units using pipeline composition are arranged in parallel for rotated template vectors. As a result, real-time VQ processor on FPGA is balanced architecture compared with the fully parallel architecture.
AB - A balanced vector-quantization (VQ) processor has been developed for real-time encoding of motion pictures (640x480 pixels) by using FPGA. The VQ processor employs a search algorithm for VQ encoding to reduce computational complexity and hardware volume. And this VQ processor employs a new architecture of distance calculation unit. By adopting the pipeline composition of each element, the number of distance calculation units could be reduced compared with fully parallel hardware architecture. Besides, in order to reduce memory size of codebook, 2048 template vectors consist of 512 basic template vectors, and the distance calculation units using pipeline composition are arranged in parallel for rotated template vectors. As a result, real-time VQ processor on FPGA is balanced architecture compared with the fully parallel architecture.
UR - http://www.scopus.com/inward/record.url?scp=50149112821&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50149112821&partnerID=8YFLogxK
U2 - 10.1109/FPT.2007.4439277
DO - 10.1109/FPT.2007.4439277
M3 - Conference contribution
AN - SCOPUS:50149112821
SN - 1424414725
SN - 9781424414727
T3 - ICFPT 2007 - International Conference on Field Programmable Technology
SP - 325
EP - 328
BT - ICFPT 2007 - International Conference on Field Programmable Technology
T2 - International Conference on Field Programmable Technology, ICFPT 2007
Y2 - 12 December 2007 through 14 December 2007
ER -