Patent Document ID: 9285309
Application ID: 13953895
Patent Status: 1

Claim One:
1. An image fusion apparatus using a multi-spectral filter array sensor, the image fusion apparatus comprising at least one processor to implement: a separation unit configured to separate an input image input through the multi-spectral filter array sensor into an RGB image and a near infrared (NIR) image; a color reconstruction unit configured to extract an RGB image in a visible band by removing an NIR value incident together with R, G and B values through the multi-spectral filter array sensor from the R, G and B values; and an image fusion unit configured to fuse the RGB image in the visible band with the NIR image, in which a fusion rate of the RGB image and the NIR image is based on a size of each of the R, G and B values of the RGB image in the visible band, wherein respective color channels R′, G′, and B′ fused by the image fusion unit are given by: ( R ′ G ′ B ′ ) = ( 1 + k 0 0 0 1 + k 0 0 0 1 + k ) · ( R G B ) , where k = 3 ⁢ N R + G + B , and N indicates the NIR image.