Dense disparity estimation using Gabor filters and image derivatives

• Published in: Proceedings, Second International Conference on 3-D Digital Imaging and Modeling : October 4-8, 1999, Ottawa, Canada pp. 483 - 489
• Main Authors: Ouali, M., Ziou, D., Laurgeau, C.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1999
• Subjects: Band pass filters; Cepstral analysis; Dynamic programming; Electrical capacitance tomography; Error analysis; Frequency; Gabor filters; Image reconstruction; Robotics and automation; Satellites
• ISBN: 9780769500621; 0769500625
• DOI: 10.1109/IM.1999.805380

We tackle the recurrent problem of disparity estimation since the mapping from disparity to depth is well understood while the automatic disparity extraction is still subject to errors. We propose to use the image derivatives with the phase-based approach to overcome the tuning problem of the filter. Moreover we propose a quadratic model for the singularities neighborhood detection. The approach is characterized by the simplicity of its implementation. It also provides dense and accurate disparity maps. A numerical error analysis shows that the results are very satisfactory.