Abstract: Image sensors can only gain the Bayer pattern pictures which arc filtered by CFA. In order to get the full colour information, the other two missing colour samples must be interpolated. An algorithm based on Hamilton-Adam interpolation and trigonometric function rule was presented, which can satisfy the demand of real-time system, and can be implemented by hardware easily. Then statics and simulation pictures produced by matlab were given to estimate this algorithm,and the difficulty of the implement for the algorithm on hardware was discussed at the end. The results of experiments proved that the algorithm can restore the edges of the pictures better, and can provide satisfying speed when implied on hardware.

Key words: Interpolation algorithm, Colour filter array, Bayer pattern, Hardware, FPUA