This work proposes to learn visual encodings of attention patterns that enables sequential attention for object detection in real world environments. The system embeds a saccadic decision procedure in a cascaded process where visual evidence is probed at informative image locations. It is based on the extraction of information theoretic saliency by determining informative local image descriptors that provide selected foci of interest. The local information in terms of code book vector responses and the geometric information in the shift of attention contribute to recognition states of a Markov decision process. A Q-learner performs then performs search on useful actions towards salient locations, developing a strategy of action sequences directed in state space towards the optimization of information maximization. The method is evaluated in outdoor object recognition and demonstrates efficient performance.
|Title of host publication||Proceedings of the Joint Hungarian-Austrian Conference on Image Processing and Pattern Recognition (HACIPPR 2005)|
|Editors||D. Chetverikov, L. Czuni, M. Vincze|
|Publisher||Austrian Computer Society|
|Number of pages||8|
|Publication status||Published - 1 May 2005|