| 摘要 |
PROBLEM TO BE SOLVED: To improve the corresponding-point detecting accuracy between a color image or a monochrome image generated from the color image and a single wavelength image.SOLUTION: A spectral reflectance image generation unit 11 estimates spectral reflectance for each pixel by winner estimation, using foresight information obtained from a pixel value of a color image, spectral sensitivity of an RGB camera 20, a spectrum of observation illumination light, and statistical property of a photographic subject, and generates a spectral reflectance image having the estimated spectral reflectance as a pixel value. A single wavelength image generation unit 12 generates a single wavelength image having the same wavelength band as a photographed single wavelength image by photography simulation using the generated spectral reflectance image, the spectrum of the observation illumination light, spectral transmittance of a narrow band pass filter, and the spectral sensitivity of the RGB camera 20. Phase image generation units 13a and 13b, a correlation image generation unit 14, and a corresponding-point detecting unit 15 detect a corresponding point of the generated single wavelength image and the photographed single wavelength image. |
