TY - GEN
T1 - Effects of stochastic phase spectrum differences on phase-only correlation functions
T2 - 2012 3rd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2012
AU - Yamaki, Shunsuke
AU - Odagiri, Jun
AU - Abe, Masahide
AU - Kawamata, Masayuki
PY - 2012/12/1
Y1 - 2012/12/1
N2 - This paper analyzes effects of stochastic phase spectrum differences on phase-only correlation (POC) functions. We assume phase spectrum differences between two signals are statistically constant for frequency indices. That is, they have identical probability density function for all frequency indices. We derive the general expressions of the expectation and variance of the POC functions. Relationships between the POC functions and the phase spectrum differences are formulated. This result mathematically guarantees the validity of the POC functions used for similarity measure in matching techniques.
AB - This paper analyzes effects of stochastic phase spectrum differences on phase-only correlation (POC) functions. We assume phase spectrum differences between two signals are statistically constant for frequency indices. That is, they have identical probability density function for all frequency indices. We derive the general expressions of the expectation and variance of the POC functions. Relationships between the POC functions and the phase spectrum differences are formulated. This result mathematically guarantees the validity of the POC functions used for similarity measure in matching techniques.
KW - Expectation
KW - Phase-only correlation functions
KW - Phase-spectrum differences
KW - variance
UR - http://www.scopus.com/inward/record.url?scp=84874327710&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874327710&partnerID=8YFLogxK
U2 - 10.1109/ICNIDC.2012.6418775
DO - 10.1109/ICNIDC.2012.6418775
M3 - Conference contribution
AN - SCOPUS:84874327710
SN - 9781467322027
T3 - Proceedings - 2012 3rd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2012
SP - 360
EP - 364
BT - Proceedings - 2012 3rd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2012
Y2 - 21 September 2012 through 23 September 2012
ER -