AN IMPROVED POWER CEPSTRUM BASED STEREO CORRESPONDENCE METHOD FOR TEXTURED SCENES

This paper analyzes the performance of cepstral approaches for solving the stereo correspondence problem. A quantitative analysis of the eff ects of noise,foreshortening differences, and photometric variations o n existing cepstral correspondence techniques is presented: A modified approach that Is less sensitive to these effects is developed for tex tured scenes, and analytical arguments for its robustness are develope d. The results of a comparative study of the new cepstral technique, t he original cepstral algorithm and the cross-correlation approach are shown and discussed. The performance of the new method is experimental ly verified on textured surfaces.