Learning Depth From Stereo. Pattern Recognition
Fabian Sinz, Joaquin Quinonero Candela, Goekhan Hasan Bakir, Carl Edward Rasmussen and Matthias Franz
In: Proc. 26th DAGM Symposium, 30th Aug - 1st Sept 2004, Tuebingen, Germany.
We compare two approaches to the problem of estimating the depth of a point in space from observing its image position in two different cameras: 1. The classical photogrammetric approach explicitly models the two cameras and estimates their intrinsic and extrinsic parameters using a tedious calibration procedure; 2. A generic machine learning approach where the mapping from image to spatial coordinates is directly approximated by a Gaussian Process regression. Our results show that the generic learning approach, in addition to simplifying the procedure of calibration, can lead to higher depth accuracies than classical calibration although no specific domain knowledge is used.