Wavelet based detection of moving tree branches and leaves in video
Author
Töreyin, B. Uğur
Çetin, A. Enis
Date
2006-05Source Title
Proceedings - IEEE International Symposium on Circuits and Systems
Print ISSN
0271-4310
Publisher
IEEE
Pages
931 - 934
Language
English
Type
Conference PaperItem Usage Stats
130
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98
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Abstract
A method for detection of tree branches and leaves in video is proposed. It is observed that the motion vectors of tree branches and leaves exhibit random motion. On the other hand regular motion of green colored objects has well-defined directions. In this paper, the wavelet transform of motion vectors are computed and objects are classified according to the wavelet coefficients of motion vectors. Color information is also used to reduce the search space in a given image frame of the video. Motion trajectories of moving objects are modeled as Markovian processes and Hidden Markov Models (HMMs) are used to classify the green colored objects in the final step of the algorithm. © 2006 IEEE.
Keywords
Color image processingFeature extraction
Hidden Markov models
Motion estimation
Vector quantization
Wavelet transforms
Color information
Motion trajectories
Motion vectors
Wavelet based detection
Image analysis