Fig. 1. (a) Support weights of effective pixels in support regions; (b) corresponding adaptive support regions

Fig. 2. Initial disparity maps with different sizes of filter kernels. (a) l=r˙cmin; (b) l=r˙min; (c) l=r˙max; (d) initial disparity map with regularization term

Fig. 3. Flowchart of proposed algorithm

Fig. 4. Disparity maps of stereo matching algorithms based on image filtering. (a) Original color images; (b) real disparity maps; (c) disparity maps obtained by guided filtering cost aggregation; (d) disparity maps obtained by multiscale guided filtering cost aggregation; (e) disparity maps obtained by proposed algorithm

Fig. 5. Comparison of running time and matching accuracy of several stereo matching algorithms based on guided image filtering

Table 1. Percentage of mismatching pixels of different algorithms