Automatic detection of impact craters on Mars using a modified adaboosting method

	Automatic detection of impact craters on Mars using a modified adaboosting method
	Jin, Shuanggen1 ; Zhang, Tengyu 1,2
刊名	PLANETARY AND SPACE SCIENCE
	2014-09-01
卷号	99 期号:1 页码:112-117
关键词	Crater detection Adaboost algorithm Dual-threshold Weights updating
英文摘要	The accurate recognition of impact craters is important to analyze and understand the relative dating of Martian surface. Since manually identifying small craters in a deluge of high-resolution Martian images is a tremendous task, a robust automatic detection algorithm of the crater is needed, but subject to lots of uncertainties and low successful detection rates. In this paper, a modified adaboosting approach is developed to detect small size craters on Mars. First, we construct a dual-threshold weak classifier based on the characteristics of the feature value distribution instead of the single threshold classifier. Second, we adjust the criterion of updating weights in the process of training. The small craters on Mars are autamatically detected based on the modified algorithm using the images from the High Resolution Stereo Camera (HRSC) onboard Mars Express with a resolution of 12.5 m/pixel. A high threshold with 0.85 is determined, and the true detection rate of small size craters on Mars is improved by almost 10% when compared to the original method. The true detection rate can be obtained as high as 85% with only 10% false detection rate. Therefore, the modified adaboosting method has greatly improved the detecting performance of the crater and reduced the detection time. (C) 2014 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RESOLUTION PLANETARY IMAGES ; DETECTION ALGORITHMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000339699900011
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/16189]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jin, Shuanggen,Zhang, Tengyu. Automatic detection of impact craters on Mars using a modified adaboosting method[J]. PLANETARY AND SPACE SCIENCE,2014,99(1):112-117.
APA	Jin, Shuanggen,&Zhang, Tengyu.(2014).Automatic detection of impact craters on Mars using a modified adaboosting method.PLANETARY AND SPACE SCIENCE,99(1),112-117.
MLA	Jin, Shuanggen,et al."Automatic detection of impact craters on Mars using a modified adaboosting method".PLANETARY AND SPACE SCIENCE 99.1(2014):112-117.