1440 /spl times/ 1080 pixel, 30 frames per second motion-JPEG 2000 codec for HD-movie transmission
H. Yamauchi, Shigeyuki Okada, K. Taketa, Yoshio Matsuda, T. Mori, Takanori Watanabe, Yasutaka Matsuo, Y. Matsushita · IEEE Journal of Solid-State Circuits · 2005
This paper describes techniques and approaches capable of achieving real-time motion-JPEG2000 encoding/decoding of high definition images with low power consumption. We propose a highly efficient VLSI implementation of procedure of two-dimensional wavelet transform that uses intermediate results through wavelet calculation. Double data-BUS and double encoder architecture with cross data flow is also introduced in order to make an improvement in coding performance and power consumption. The processor performs compression of 1440 /spl times/ 1080 pixels images with the speed of 30 frames per second (fps) at a required operating frequency as low as 54 MHz. A test chip of this implementation has been fabricated in a 0.18-/spl mu/m 5-layer CMOS process. The chip is 9.2 /spl times/ 9.2 mm/sup 2/ in size and consumes 0.9 W when supplied with 1.8 V and 54 MHz.