Title :
Binary Mth band filters for image size conversion
Author :
Yang, Seungjoon ; Nguyen, Truong Q.
Author_Institution :
Digital Media Res. Center, Samsung Electron. Co. Ltd., South Korea
Abstract :
Images and video sequences often have to be scaled to a different size. We present binary interpolation filters obtained from the Mth band eigenfilters via the lifting steps for the sampling rate alteration. The binary filters are implemented with only the shift and add operations, providing an efficient way to perform image size conversion. Scaled images using the proposed filters show superb image quality
Keywords :
digital arithmetic; image resolution; image sampling; image sequences; interpolation; linear phase filters; low-pass filters; video signal processing; add operations; binary Mth band filters; binary interpolation filters; eigenfilters; image quality; image resolution; image size conversion; lifting steps; linear phase filter; low pass filter; sampling rate alteration; shift operations; video sequences; Band pass filters; Cutoff frequency; Image converters; Image quality; Image sampling; Interpolation; Low pass filters; Nonlinear filters; Sampling methods; Video sequences;
Conference_Titel :
Multimedia Signal Processing, 2001 IEEE Fourth Workshop on
Conference_Location :
Cannes
Print_ISBN :
0-7803-7025-2
DOI :
10.1109/MMSP.2001.962728
