Effective hardware-oriented technique for the rate control of JPEG2000 encoding
A great deal of computation for JPEG2000 encoding is a redundancy when the compression rate is high. That is because many coded bit-streams will be truncated after the rate control of JPEG2000. In this paper, an effective scheme for JPEG2000 rate control is proposed. Through this scheme, the computation complexity for JPEG2000 entropy coding, that is, EBCOT Tier-1, can be greatly reduced almost without paying any penalty on the image quality, especially at lower bit-rate. Moreover, the proposed method is considered to be suitable for the hardware implementation since the existing techniques for the rate control of JPEG2000 are all software-oriented. By the proposed rate control method, a dedicated hardware of JPEG2000 with high-speed processing and effective rate control ability can be achieved.