Abstract:Multi-channel projection fusion is an important solution of modern exhibition. This paper presents the design and implementation of projection fusion system in museum exhibition, which proposes a new trigonometric function as blending function, which proposes SURF algorithm for feature extraction and image registering processing with optical flow algorithm. Main steps and program chart of the projection fusion are analysed, the characteristics, advantages and disadvantages of this method are explained. The direction of the 3D development is pointed out about projection fusion. The procedure gets the SURF feature point sets and the projection transformation matrix of the photo, then three steps for geometric calibration, edge blending, projection color balance are executed. After field sampling and testing, visual inspection and PSNR data illustrate the good effect of fusion.