Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2003.07e
- /
- Pages.1767-1770
- /
- 2003
Spectral-Reflectance Estimation Using Adaptive Principle Component Analysis in Similar Color Region
유사 색상 영역의 적응적인 주성분 분석을 이용한 표면분광반사율 추정
Abstract
This paper proposes an algorithm that can reduce the estimation error of surface spectral-reflectance(SR) when using a conventional 3-band RGB camera. In the proposed method, the estimation error is reduced by using adaptive principle components (PCs) for each color region. To build an adaptive set of PCs, n SR populations are organized for n PC sets using the Lloyd quantizer design algorithm. The Macbeth Color Checker is utilized for the initial representative SR values for 1485 Munsell color chips as the total color population, then the Munsell chips arc divided into subsets with a set of corresponding adaptive PCs organized for each subset.
Keywords