In the paper, according to analyzing features of flight multi-targets in the far distance, a new multi-target recognition algorithm based on conformability degree principle for multistage searching process is introduced In the cursory searching period, all possible targets are quickly detected with the round template in the filtering binary image. After the cluster analysis for all possible targets based on distance conformability degree principle is finished, the centroid of all possible points in a same target is used as center of a local entropy region. In the precision searching period, the position of maximum entropy value of the local entropy region being labeled is gained to use as a growing seed for implementing region growing. In order to decrease operation amount and improve system real-time character, with entropy conformability degree principle, an improved region growing algorithm being combined simple linking algorithm with sub-region combination algorithm is used to rebuild image target
Based on the analysis on the bottleneck for improving CCD measurement resolving power in the high-accuracy image detection system, sub-pixel subdivision technology is presented. Through comparison the advantage and disadvantage of current subdivision algorithms, we propose a new 1D sub- pixel subdivision algorithm called Adaptive Weighing Fitting algorithm in the paper, which is suitable for such image as low contrast, low SNR and complex background. And we implement the real-time algorithm in the high-speed system platform based on TMS320C50. Then a fast 2D sub-pixel subdivision algorithm based on correlation feature and direction feature of image border is also discussed for improving the location accuracy of complex border. By many simulation experiments and practical detection in spot, the satisfied subdivision result are obtained.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.