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Optical navigation technology is widely used in precision guidance for autonomous landing and obstacle avoidance. According to the requirements of the computer vision landing location system on a planetary lander, this paper mainly studies the image feature matching algorithm in the process of autonomous navigation during landing on asteroids. A matching algorithm based on local feature regions was...
Optical navigation technology is widely used in precision guidance for autonomous landing and hazard avoidance. According to the requirements of the computer vision landing location system on a planetary lander, this paper proposed an algorithm to automatically obtain the precise landing position, which is based on optical image features. The main contents of this paper are as follows: Firstly, an...
Selecting a subset of marker genes from thousands of genes is an important topic in microarray experiments for diseases classification and prediction. In this paper, we proposed a novel hybrid approach that combines gene ranking, heuristic clustering analysis and wrapper method to select marker genes for tumor classification. In our method, we firstly employed gene filtering to select the informative...
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