Title :
A novel approach for finding the movement of an object in video sequences by an artificial neural network for 2.5D object modeling
Author :
Malhorta, R. ; Takaya, Kunio
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask.
Abstract :
In this paper we propose a system that identifies and tracks the movement of an object appearing fully or partially hidden by occlusion in a video sequence for the ultimate purpose of modeling the moving object in 2.5D space using the SfM (structure from motion) concepts. This paper presents a novel algorithm to detect moving objects in video sequences by first performing image segmentation on the frame sequences based on the criteria of motion, and then applying a motion vector estimation algorithm to find geometrically identical points in two consecutive video frames. An ANN (artificial neural network) based model was adopted to segment the moving object(s) out of the stationary background. The next step involves applying motion vector search on the motion segmented images to obtain a correspondence between a pixel of the object in the reference frame and a pixel in the subsequent frame such that the pixels corresponds to the same part and geometrical location of the object. Results from various video sequences of motion based segmentation using ANN and the subsequent motion vector estimation have been presented in this paper. Eventually, a wire-frame diagram is constructed to represent a moving object in 2D
Keywords :
hidden feature removal; image resolution; image segmentation; image sequences; motion estimation; neural nets; object detection; video signal processing; 2.5D object modeling; artificial neural network; frame sequences; geometrical location; image segmentation; motion based segmentation; motion vector estimation algorithm; motion vector search; moving objects detection; object movement finding; occlusion; reference frame; structure from motion concepts; video frames; video sequences; wire-frame diagram; Artificial neural networks; Electronic mail; Image segmentation; Intelligent networks; Motion detection; Motion estimation; Neural networks; Object detection; Pixel; Video sequences;
Conference_Titel :
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location :
Saskatoon, Sask.
Print_ISBN :
0-7803-8885-2
DOI :
10.1109/CCECE.2005.1557141