Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/5625

VECON : a practical vision system for vehicle license plate number and container number recognition

Practical vision system for vehicle license plate number and container number recognition

Authors Wong, Wing-kin
Issue Date 1996
Summary A practical vision system called VECON for VEhicle and CONtainer ID number recognition is described in this thesis. A robust technique for character extraction is proposed. The preprocessing locates potential character regions using selective line segment filtering allowing fast focus on real ID numbers. The potential characters regions are extracted through successive projection segmentation. Then the characters are extracted by a multi-extraction module integrated with variable threshold binarization. The extracted characters are finally grouped, normalized, and fed into a backpropagation neural recognizer for recognition. After being tested on more than 2000 container images and 2000 vehicle images under real scene conditions, and used probationally in an international container terminal, in several container depots and at the HKUST entrance, the system has proven to be fast, effective, and accurate. The system is PC-based and no dedicated hardware is needed.
Note Thesis (M.Phil.)--Hong Kong University of Science and Technology, 1996
Subjects
Language English
Format Thesis
Access
Files in this item:
File Description Size Format
th_redirect.html 345 B HTML