深空探测学报
深空探測學報
심공탐측학보
Journal of Deep Space Exploration
2014年
4期
262-268
,共7页
吴伟仁%王大轶%毛晓艳%黄翔宇
吳偉仁%王大軼%毛曉豔%黃翔宇
오위인%왕대질%모효염%황상우
障碍识别%灰度重构形状%朗伯体模型%Hapke 模型
障礙識彆%灰度重構形狀%朗伯體模型%Hapke 模型
장애식별%회도중구형상%랑백체모형%Hapke 모형
obstacle recognition%shape from shading%Lambert model%Hapke model
针对月球软着陆自主避障的需求,提出了一种适合月球灰尘表面的改进优化 Hapke 模型,给出了相对高程的求解、障碍识别与安全区选取方法,解决了已有纹理法无法识别坡度的问题,实现了利用单幅图像的月面着陆障碍识别与安全区域选取。利用月球软着陆下降段仿真图像,进行了模型解算和三维高程恢复并计算安全区域,结果表明,利用月面单幅图像能够实现障碍的识别与安全区的选取。
針對月毬軟著陸自主避障的需求,提齣瞭一種適閤月毬灰塵錶麵的改進優化 Hapke 模型,給齣瞭相對高程的求解、障礙識彆與安全區選取方法,解決瞭已有紋理法無法識彆坡度的問題,實現瞭利用單幅圖像的月麵著陸障礙識彆與安全區域選取。利用月毬軟著陸下降段倣真圖像,進行瞭模型解算和三維高程恢複併計算安全區域,結果錶明,利用月麵單幅圖像能夠實現障礙的識彆與安全區的選取。
침대월구연착륙자주피장적수구,제출료일충괄합월구회진표면적개진우화 Hapke 모형,급출료상대고정적구해、장애식별여안전구선취방법,해결료이유문리법무법식별파도적문제,실현료이용단폭도상적월면착륙장애식별여안전구역선취。이용월구연착륙하강단방진도상,진행료모형해산화삼유고정회복병계산안전구역,결과표명,이용월면단폭도상능구실현장애적식별여안전구적선취。
A method of ameliorated Hapke model which is the same with satellite surface covered with deep dust is put forward to satisfy the needs of soft landing on the moon.The linearization method is used to calculate the differential equation and to get the relative three-dimensional height of simulative images for obstacle recognition and selection of safe area during landing phase.It can resolve the problem that is difficult to recognize the slope by texture method.Making use of the simulating lunar images during landing,the model calculation,three-dimensional height rebuilding and safe area selection are realized.The results show the validity of this method using single lunar image.