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Comments on "An Analog 2-D DCT Processor"

DSpace at IIT Bombay

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Title Comments on "An Analog 2-D DCT Processor"
 
Creator NOOLU, SP
BAGHINI, MS
 
Subject discrete cosine transform (dct)
peak signal-to-noise ratio (psnr)
 
Description In the paper "An analog 2-D DCT processor," authors have presented a row-column method for computing 2-D discrete cosine transform (DCT). They have reported minimum peak signal-to-noise ratios (PSNR) 40.6 dB and 31.4 dB for 4-point and 8-point DCT, respectively. The main objective of this comment letter is to point out that those PSNR values are not correctly calculated. The actual minimum PSNR values are shown to be 24.7 dB and 22.7 dB for 4-point and 8-point DCT, respectively. Similarly, maximum PSNR values are corrected in this letter.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2011-07-31T22:25:53Z
2011-12-26T12:53:10Z
2011-12-27T05:40:22Z
2011-07-31T22:25:53Z
2011-12-26T12:53:10Z
2011-12-27T05:40:22Z
2010
 
Type Article
 
Identifier IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 20(8), 1162-1163
1051-8215
http://dx.doi.org/10.1109/TCSVT.2010.2051281
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8258
http://hdl.handle.net/10054/8258
 
Language en