TY - GEN
T1 - Increasing correlation using a few bits for multiple description coding
AU - Ito, Akinori
AU - Makino, Shozo
PY - 2007/12/1
Y1 - 2007/12/1
N2 - In this paper we investigated methods that increase correlation between two values using one or two bits of extra information. For methods that use one bit, we investigated '1 -bit quantization,' 'sign correction' and 'difference quantization' methods. For those that use two bits, we investigated '2-bit quantization,' 'sign corrections+difference quantization' and '2-bit difference quantization' methods. From theoretical analysis and numerical experiments, it has been found that the quantization-based method is best when correlation of the original data is weak, while 'difference quantization ' or combination of sign correction is better when the original data have strong correlation. Then we applied the methods to multiple description coding of speech signals.
AB - In this paper we investigated methods that increase correlation between two values using one or two bits of extra information. For methods that use one bit, we investigated '1 -bit quantization,' 'sign correction' and 'difference quantization' methods. For those that use two bits, we investigated '2-bit quantization,' 'sign corrections+difference quantization' and '2-bit difference quantization' methods. From theoretical analysis and numerical experiments, it has been found that the quantization-based method is best when correlation of the original data is weak, while 'difference quantization ' or combination of sign correction is better when the original data have strong correlation. Then we applied the methods to multiple description coding of speech signals.
UR - http://www.scopus.com/inward/record.url?scp=47349111917&partnerID=8YFLogxK
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U2 - 10.1109/IIHMSP.2007.4457700
DO - 10.1109/IIHMSP.2007.4457700
M3 - Conference contribution
AN - SCOPUS:47349111917
SN - 0769529941
SN - 9780769529943
T3 - Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
SP - 259
EP - 262
BT - Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
T2 - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007
Y2 - 26 November 2007 through 28 November 2007
ER -