DocumentCode :
384236
Title :
Virtual audio system customization using visual matching of ear parameters
Author :
Zotkin, Dmitry N. ; Duraiswami, Ramani ; Davis, Larry S. ; Mohan, Ankur ; Raykar, Vikas
Author_Institution :
Perceptial Interface & Reality Lab., Maryland Univ., College Park, MD, USA
Volume :
3
fYear :
2002
fDate :
2002
Firstpage :
1003
Abstract :
Applications in the creation of virtual auditory spaces (VAS) and sonification require individualized head related transfer functions (HRTFs) for perceptual fidelity. HRTFs exhibit significant variation from person to person due to differences between their pinnae, and their body sizes. We propose and preliminarily implement a simple HRTF customization based on the use of a published database of HRTFs (Algazi et al., 2001) that also contains geometrical measurements of subject pinnae. We measure some of these features via simple image processing, and select the HRTF that has features most closely corresponding to the individual´s features. This selection procedure is implemented along with the virtual auditory system described in (Zotkin et al., 2002), and listener tests conducted comparing the customized HRTF and a fixed HRTF. Despite the simplicity of the method, tests reveal average improvement in localization accuracy of about 25 percent, though performance improvement varies with source location and individuals.
Keywords :
acoustic signal processing; computer vision; medical image processing; HRTF customization; database; ear parameter matching; geometrical measurements; head related transfer functions; medical image processing; performance improvement; sonification; virtual audio system customization; virtual auditory spaces; virtual auditory system; visual matching; Audio systems; Auditory system; Ear; Head; Image databases; Image processing; Position measurement; Spatial databases; System testing; Transfer functions;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pattern Recognition, 2002. Proceedings. 16th International Conference on
ISSN :
1051-4651
Print_ISBN :
0-7695-1695-X
Type :
conf
DOI :
10.1109/ICPR.2002.1048207
Filename :
1048207
Link To Document :
بازگشت