CAJ | 학술논문

考虑到自主导航过程中的特征区域检测与跟踪问题，提出了一种新的跟踪算法。该算法是基于DIMES 框架。首先，对在软着陆过程中拍摄的行星表面图像进行亮度均衡化，对处理后的图像进行二值化；然后，对二值化特征区域进行模板匹配找出高度相关位置点；最后，根据特征区域之间的几何关系确定特征区域的搜索范围，再分别提取这些相关点所代表区域的特征向量，并且与模板的特征向量进行相似性分析从而找到相似性最大的位置点。通过两组小行星表面图片进行分析验证得到了较好的效果。
고필도자주도항과정중적특정구역검측여근종문제，제출료일충신적근종산법。해산법시기우DIMES 광가。수선，대재연착륙과정중박섭적행성표면도상진행량도균형화，대처리후적도상진행이치화；연후，대이치화특정구역진행모판필배조출고도상관위치점；최후，근거특정구역지간적궤하관계학정특정구역적수색범위，재분별제취저사상관점소대표구역적특정향량，병차여모판적특정향량진행상사성분석종이조도상사성최대적위치점。통과량조소행성표면도편진행분석험증득도료교호적효과。
A new algorithm is proposed for the landmark tracking in the process of asteroid soft landing that based on the frame of DIMES.Firstly,a method of luminance equalization is used for highlight the shadow areas and light areas,and convert the image into the binary one to find the connection areas.Secondly,find the high correlation location of the binary areas by template matching.Finally,confirm the characteristic areas by the geometrical relationship of different characteristic areas,and extract the characteristic vectors of the high correlation areas,and analyze the degree of similar between areas and the land mark to find the most similarity location.Two groups of the terrain picture of asteroid are examined in the paper and the result is well.