DocumentCode
2827253
Title
BTC image coding using two-dimensional median filter roots
Author
Zeng, Bing ; Wang, Qiaofei ; Neuvo, Yrjö
Author_Institution
Signal Process. Lab., Tampere Univ. of Technol., Finland
fYear
1991
fDate
11-14 Jun 1991
Firstpage
400
Abstract
Application of root signals of two-dimensional median filters to BTC (block truncation coding) is investigated. The 2D median filters considered are the 3×3 separable median (SM) filter and the 5-point cross window median (CWM) filter, as these two types of filters preserve image details well. Some properties of the root signal sets of these two filters are studied. It is shown that using the root signals of SM or CWM filters to perform BTC coding, little degradation results in the coded images, whereas the bits/pixel needed reduce to 1.69 or 1.81, respectively, compared to the standard BTC coding method whose bits/pixel are 2.0
Keywords
digital filters; encoding; filtering and prediction theory; picture processing; 2D median filters; BTC; BTC coding; block truncation coding; filter roots; image coding; root signal sets; Code standards; Decoding; Degradation; Filters; Image coding; Laboratories; Mean square error methods; Pixel; Samarium; Signal processing;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN
0-7803-0050-5
Type
conf
DOI
10.1109/ISCAS.1991.176358
Filename
176358
Link To Document