Techniques and standards for image, video, and audio coding
Techniques and standards for image, video, and audio coding
JPEG Still Image Data Compression Standard
JPEG Still Image Data Compression Standard
A simple and efficient hierarchical image coder
ICIP '97 Proceedings of the 1997 International Conference on Image Processing (ICIP '97) 3-Volume Set-Volume 3 - Volume 3
High-performance JPEG 2000 encoder with rate-distortion optimization
IEEE Transactions on Multimedia
High performance scalable image compression with EBCOT
IEEE Transactions on Image Processing
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
IEEE Transactions on Circuits and Systems for Video Technology
Vector SPIHT for embedded wavelet video and image coding
IEEE Transactions on Circuits and Systems for Video Technology
Efficient, low-complexity image coding with a set-partitioning embedded block coder
IEEE Transactions on Circuits and Systems for Video Technology
| Hi-index | 0.00 |
Embedded image coding in wavelet domain has drawn a lot of attention. Among noteworthy algorithms is the embedded block coding with optimized truncation (EBCOT) algorithm, which has been adopted by the JPEG2000 standard. EBCOT is a two-tier algorithm. Tier-1 is composed of bit-plane coding followed by entropy coding. Tier-2 performs the so-called post compression rate distortion optimization (PCRD), which requires a large memory space for storing all the code streams of code blocks; however, some code blocks of less importance might not be needed for the optimal decoded image at a bit rate. To avoid waste of computational power and memory space, a simple context based rate distortion estimation (CBRDE) is thus proposed to arrange the scanning order of code blocks in an adaptive manner. The CBRDE algorithm is based on the MQ table of JPEG2000, which is available at both encoder and decoder. As a result, there is no need to store and transmit the rate distortion information of code blocks. Experimental results show that the rate distortion curves are almost convex; this demonstrates the potential of CBRDE for embedded wavelet image coding.