The purpose of this study is to propose a new landing point determination method for autonomous lunar/planetary landers. To decide a target point for safety landing, the proposed method utilizes image processing algorithms that use brightness value for detecting flat and horizontal regions. In addition, the proposed method applies fractal dimension analysis for judging scientifically interesting regions. The proposed method is evaluated by image processing simulations using a CG image generated by DEM that is produced by fractal modeling method to express natural geometry, based on observed data.%今日,月周回衛星「かぐや」や小惑星探査機「はやぶさ」における成果を受けて,月•惑星探査に対する関心が高まっている.月•惑星探査において着陸を行う場合,地球との通信にタイムラグが生じるため,自律的な着陸が必要となる.自律着陸技術の研究は,従来の「降りやすいところ」に降りるための手法から,近年ではクレータ近傍のように理学的にも価値があるような「降りたいところ」に降りるための手法へと移り変わってきている.
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