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Presentation 2024-03-19 11:10
Evaluation of interpolation methods for luminance CSF whole visual field model by measured data
Kotaro Kitakami, Suguru Saito (titech), Keiji Uchikawa (kait)
Abstract (in Japanese) (See Japanese page) 
(in English) Contrast sensitivity functions (CSFs) are applicable to rendering wide-field of view images and saliency analysis. In our previous report, we proposed three luminance CSF models for whole visual field by three interpolation ways with CSFs in the nasal, superior, temporal, and inferior eccentricity directions. In this study, we compared the errors between those CSF models and the measured contrast thresholds in an interpolated eccentricity direction. The results showed that the linear interpolation of the two CSFs with cartesian coordinate values is inappropriate because the errors are larger than those of the other two interpolation methods. When comparing interpolations by the other two methods with CSF models in the nasal, superior, temporal, and inferior directions, it was found there are larger errors to the actual measurements. Therefore, in application use, it is necessary to set three times margin the perceptual judgement threshold than that for the nasal, superior, temporal, and inferior directions.
Keyword (in Japanese) (See Japanese page) 
(in English) luminance contrast sensitivity function / peripheral vision / whole visual field / / / / /  
Reference Info. ITE Tech. Rep., vol. 48, no. 13, HI2024-18, pp. 23-26, March 2024.
Paper # HI2024-18 
Date of Issue 2024-03-12 (HI) 
ISSN Online edition: ISSN 2424-1970
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Conference Information
Committee HI  
Conference Date 2024-03-19 - 2024-03-19 
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Paper Information
Registration To HI 
Conference Code 2024-03-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of interpolation methods for luminance CSF whole visual field model by measured data 
Sub Title (in English)  
Keyword(1) luminance contrast sensitivity function  
Keyword(2) peripheral vision  
Keyword(3) whole visual field  
1st Author's Name Kotaro Kitakami  
1st Author's Affiliation Tokyo Institute of Technology (titech)
2nd Author's Name Suguru Saito  
2nd Author's Affiliation Tokyo Institute of Technology (titech)
3rd Author's Name Keiji Uchikawa  
3rd Author's Affiliation Kanagawa Institute of Tecnology (kait)
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Speaker Author-1 
Date Time 2024-03-19 11:10:00 
Presentation Time 20 minutes 
Registration for HI 
Paper # HI2024-18 
Volume (vol) vol.48 
Number (no) no.13 
Page pp.23-26 
Date of Issue 2024-03-12 (HI) 

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