Title :
How to provide pattern representations for learning and recognizing differently located objects from arbitrary camera positions
Author :
Hartmann, G. ; Drue, S. ; Krauter, K.O. ; Seidenberg, E. ; Wiemers, H.
Author_Institution :
Fachbereich 14 Elektrotech., Univ. Gesamthochschule Paderborn, Germany
Abstract :
Our robot vision system is able to recognize differently located objects from arbitrary positions of a hand mounted camera. The type, position and orientation of the workpieces are provided with sufficient accuracy for gripping. Unknown objects are learnt, and may be recognized as soon as a name is assigned. Shift invariance is due to correct foveation by the moving camera. Parametric mappings controlled by distance and object orientation provide normalized representations to the associative network. These representations based on a special retina are sufficiently tolerant against minor deviations in size, position, and orientation, and allow the system to extract object orientation at high accuracy.
Keywords :
feature extraction; knowledge representation; learning (artificial intelligence); neural nets; object recognition; robot vision; associative network; feature extraction; learning; moving camera; object orientation; object recognition; parametric mappings; pattern representations; robot vision; workpiece location; Cameras; Face recognition; Neurons; Pattern recognition; Pixel; Retina; Robot vision systems; Shape measurement; Telecommunication traffic; Visual system;
Conference_Titel :
Neural Networks, 1993. IJCNN '93-Nagoya. Proceedings of 1993 International Joint Conference on
Print_ISBN :
0-7803-1421-2
DOI :
10.1109/IJCNN.1993.714155