This research compared the feature points that are detected
by using two method between Harris [2] and SIFT [3] .The 3D
computer graphics image is used as reference image for the
rectification of photo image as shown in Figure 4. Camera
position and attitude used to create 3D computer graphics.
Also, the viewing angles and image size must be set the same
as that of the photo image. The magnitude for elevation is set at
1.0. The shading effect is considered. The 3D computer
graphics image has fixed camera attitude (ω, ψ, κ), while the
camera attitude of photo image are only approximates.