Title :
Real-time estimation of geometrical transformation between views in distributed smart-cameras systems
Author :
Presti, Liliana Lo ; Cascia, Marco La
Author_Institution :
Dipt. di Ing. Inf., Univ. of Palermo, Palermo
Abstract :
We present a method to automatically estimate the geometric relations among different views of cameras with partially overlapping fields of view using the position of moving objects visible at the same time in two or more views. The correspondences among objects are found by comparing their appearance based on dominant colour descriptors. The geometric transformation are computed iteratively and may be used to solve the consistent labelling problem. As a significant part of the processing is performed on smart cameras, the method has been conceived by taking into account the limited resources and low computational capability of the aforementioned devices. Experiments are done on publicly available datasets in order to show the accuracy of the geometric relations found by our method.
Keywords :
distributed sensors; image colour analysis; image motion analysis; image sensors; intelligent sensors; iterative methods; object detection; real-time systems; consistent labelling problem; distributed smart-camera systems; dominant colour descriptors; geometrical transformation; homography; iterative computation; moving objects detection; moving objects position; partially overlapping fields; real-time estimation; Base stations; Event detection; Humans; Labeling; Layout; Object detection; Real time systems; Safety; Smart cameras; Video surveillance; Consistent labelling; homography; midground; motion detection; smart cameras;
Conference_Titel :
Distributed Smart Cameras, 2008. ICDSC 2008. Second ACM/IEEE International Conference on
Conference_Location :
Stanford, CA
Print_ISBN :
978-1-4244-2664-5
Electronic_ISBN :
978-1-4244-2665-2
DOI :
10.1109/ICDSC.2008.4635688