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A deep learning approach to crater detection

Blumenkamp, Jan (2019) A deep learning approach to crater detection. Bachelor's, Universität Bremen.

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Detecting craters can be useful for a broad variety of tasks, such as monitoring the development of celestial bodies over time or for navigational purposes. Deep learning as a tool for solving complex tasks in image processing became increasingly popular in the recent years. While there are a few works targeting crater detections with deep learning, most focus on monitoring celestial bodies, for which the requirements are different than for the purpose of navigation, where less computing power is available and additional crater parameters must be recovered from the image. In this work, a deep learning approach to crater detection is developed, implemented and evaluated. Due to the absence of proper training data a way to generate the training data with the Planet and Asteroid Natural Scene Generation Utility (PANGU) simulator is implemented. With this simulator a data set consisting of 20000 images and crater labels was generated. A segmentation approach is then used to create probability distributions for crater rims and centers which is then post-processed with conventional methods by using domain knowledge. The researched approaches are evaluated in terms of precision, recall and general accuracy. The different crater parameters are evaluated by categorizing the detections into true positives, false positives and false negatives which are then analyzed separately. Furthermore, the execution time of both approaches is compared. Lastly, the approach is evaluated by applying it to images taken on recent missions to the moon and other celestial bodies.

Item URL in elib:https://elib.dlr.de/129587/
Document Type:Thesis (Bachelor's)
Title:A deep learning approach to crater detection
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:26 June 2019
Refereed publication:No
Open Access:No
Number of Pages:58
Keywords:deep learning, optical navigation
Institution:Universität Bremen
Department:Fachbereich 03 - Mathematik und Informatik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Optical navigation on hybrid avionics architecture
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Krüger, Hans
Deposited On:18 Oct 2019 11:11
Last Modified:18 Oct 2019 11:11

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