TY - GEN
T1 - Efficiency evaluation and orthogonal basis determination in functional HRTF modeling
AU - Zhang, Mengqiu
AU - Kennedy, Rodney A.
AU - Abhayapala, Thushara D.
PY - 2011
Y1 - 2011
N2 - This paper consider the problem of how to evaluate the efficiency of a 3D continuous functional HRTF model in representing measured data. The proposed method is based on Karhunen-Loève theorem. After investigating the optimization problem of representing the process with an finite linear combination of orthogonal functions in L2 space by means of the least squared method, the variance of random variables involved in the model is found the key metric in efficiency evaluation of a given functional model. Then, the coefficients of the 3D continuous HRTF model are analyzed. The results show that the efficiency of the model in spatial component expansion is around 70% and the best choice in frequency component expansion is the spherical Bessel function.
AB - This paper consider the problem of how to evaluate the efficiency of a 3D continuous functional HRTF model in representing measured data. The proposed method is based on Karhunen-Loève theorem. After investigating the optimization problem of representing the process with an finite linear combination of orthogonal functions in L2 space by means of the least squared method, the variance of random variables involved in the model is found the key metric in efficiency evaluation of a given functional model. Then, the coefficients of the 3D continuous HRTF model are analyzed. The results show that the efficiency of the model in spatial component expansion is around 70% and the best choice in frequency component expansion is the spherical Bessel function.
KW - Functional Model
KW - HRTF Model
KW - Karhunen-Loève Theorem
KW - Least Squared Method
UR - http://www.scopus.com/inward/record.url?scp=80051622737&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946326
DO - 10.1109/ICASSP.2011.5946326
M3 - Conference contribution
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 53
EP - 56
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -