Hou Zheng-xin, Guo Xu-jing, Yang Xi . A Hierarchical Coding Technique Based on All Phase IDCT Interpolation[J]. Journal of Electronics & Information Technology, 2005, 27(6): 865-869.
Citation:
Hou Zheng-xin, Guo Xu-jing, Yang Xi . A Hierarchical Coding Technique Based on All Phase IDCT Interpolation[J]. Journal of Electronics & Information Technology, 2005, 27(6): 865-869.
Hou Zheng-xin, Guo Xu-jing, Yang Xi . A Hierarchical Coding Technique Based on All Phase IDCT Interpolation[J]. Journal of Electronics & Information Technology, 2005, 27(6): 865-869.
Citation:
Hou Zheng-xin, Guo Xu-jing, Yang Xi . A Hierarchical Coding Technique Based on All Phase IDCT Interpolation[J]. Journal of Electronics & Information Technology, 2005, 27(6): 865-869.
This paper proposes a hierarchical coding technique based on the All Phase Inverse Discrete Cosine Transform (APIDCT) interpolation. The All Phase Digital Filter (APDF) is a new type of linear phase filter. This paper compares the performances of several kinds of APDF and demonstrates that the APIDCT filter has the best performance in image interpolation. By combining the interpolation filter with multi-subsampling and adaptive arithmetic coding, a simple hierarchical image coding method is shaped up. This technique can be used to scalable coding in spatial resolution. Simulation results show that the compression ratio and restored image quality better than JPEG11 compression can be achieved by only three layers, and no block effect is found even in high compression ratio.
Said A, Pearlman W A. An image multiresolution representatoin for lossless and lossy compression[J].IEEE Trans. on Image Processing.1996, 5(9):1303-[2]毕厚杰.静止图像编码[J].通信学报,1993,14(2):48-54.[3]侯正信,王兆华,杨喜.全相位DFT数字滤波器的设计与实现[J].电子学报,2003,3l(4):539-543.[4]侯正信.离散余弦列率滤波器的设计及应用[J].天津大学学报,1999,32(3):324-328.[5]Croft L H, Robinson J A. Subband image coding using watershed and watercourse lines of the wavelet transform [J].IEEE Trans.on Image Processing.1994, 3(6):759-
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