|
|
Harbor Target Recognition Based on Inside Region |
Xing Kun; Fu Yi-li |
Advanced Manufacturing Technology Center, Harbin Institute of Technology, Harbin 150001, China |
|
|
Abstract Different inside regions of harbors show different shapes from remote sensing images. A method of harbor target recognition based on inside region is proposed. Firstly, potential sea regions are segmented from image by using histogram and dilation operations. Secondly, the coastline is partitioned into a series of feature points with polygon approximation in order to compress the shape description datum. After calculating the closure from feature points, the inside regions are extracted. Straight lines and corner structures are detected to reduce false alarms. Then the principal orientation of inside region is rotated to the same right horizontally to avoid the rotation effect. Finally, the features are extracted to measure the similarity. Experiments show that harbors are detected accurately using the proposed method. Besides, the extracted features have good invariability and can meet the need of recognition.
|
Received: 13 May 2008
|
|
|
|
|
|
|
|