Abstract:

Registration is a key technique in an augmented reality (AR) system. A recent registration method based on fundamental matrix does not need auxiliary instruments and manmade markers, therefore is easily implemented and widely adaptable. However its registration accuracy needs improvement. In this paper the Tsai algorithm is used to introduce a non-linear camera model and correct distortion in the image feature points. The corrected feature points are then applied to the registration method based on a fundamental matrix. Experimental results show that the new registration technique provides better accuracy than the original method.

Key words: registration method, Tsai algorithm, augmented reality