Title :
Measurement of camera response function based on polarizer
Author :
Wu, Hsien-Huang P. ; Shih-Hsin Chang
Author_Institution :
Grad. Sch. of Eng. Sci. & Technol., Nat. Yunlin Univ. of Sci. & Technol., Douliou, Taiwan
Abstract :
Measurement of camera response function (CRF) has become an important technique in the field of computer graphics and radiance measurement. It can be used to achieve accurate modeling and high dynamic range imaging. A method was developed in this paper by using a polariscope to provide accurate radiance for direct measurement of the CRF. The experimental results show that the accuracy of the estimated CRF obtained by the new approach is about 5% better than that of the previous method.
Keywords :
brightness; cameras; computer graphics; light polarisation; optical variables measurement; polarimeters; CRF; camera response function measurement; computer graphics; high dynamic range imaging; polariscope; polarizer; radiance map; radiance measurement; Brightness; Detectors; Digital cameras; Dynamic range; Estimation; Mathematical model; Camera response function; camera transfer function; high dynamic range imaging; polariscope; radiance map;
Conference_Titel :
Signal and Information Processing (ChinaSIP), 2013 IEEE China Summit & International Conference on
Conference_Location :
Beijing
DOI :
10.1109/ChinaSIP.2013.6625387
