Introduction: An accurate and representative catalog of impact craters on the surface of the Moon is necessary to infer information about the age of surfaces and the sequence of geological events [1]. The existing global catalogs of lunar craters contain ~2700 craters [2] and ~8500 craters [3], respectively. They suffer from uneven areal coverage as they were compiled from images having differe...

This work presents the first results of an experiment aiming to derive a high resolution Digital Terrain Model (DTM) by kinematic GPS surveying. The accuracy of the DTM depends on both the operational GPS precision and the density of GPS samples. The operational GPS precision, measured in the field, is about 10 cm. A Monte Carlo analysis is performed to study the dependence of the DTM error on ...

In this paper, we introduce the notion of DTM-signature, a measure on R+ that can be associated to any metric-measure space. This signature is based on the distance to a measure (DTM) introduced by Chazal, Cohen-Steiner and Mérigot. It leads to a pseudo-metric between metric-measure spaces, upper-bounded by the Gromov-Wasserstein distance. Under some geometric assumptions, we derive lower bound...

Checkpointing and closed nesting are mechanisms typically used for implementing partial roll-back in transactional systems. Closed nesting limits the amount of work to redo on an abort by allowing sub-transactions to abort and retry independently from their parents. Checkpointing goes further and allows a transaction to be rolled back to any previous point where a checkpoint was saved. Checkpoi...

Many automated processes in digital photogrammetry such as relative orientation of a stereopair of aerial images or a derivation of a digital terrain model (DTM) are based on image matching. Several approaches to image matching have been developed. In this paper, attention is paid to area based matching. Using of MATLAB in procedures of finding parameters of exterior orientation of an aerial im...

ii To my beloved parents Mr. Aswath Narayana and Mrs. Shubha, and my precious brother Aryan Rajeev. iii Acknowledgements I take this opportunity to express my profound gratitude and deep regards to my primary advisor Dr. Amlan Ganguly for his exemplary guidance, monitoring and constant encouragement throughout this thesis. Dr. Amlan dedicated his valuable time to review my work constantly and p...

Rapidly developed automated data gathering techniques and methods like LIDAR (Light Detection And Ranging), GPS, integrated barymetric measurements consisted of GPS and digital sounder, are often used for obtaining observations for creation Digital Terrain Model (DTM). Methods mentioned above produce large data sets, which may cause problems for users at the stage of main processing, in which D...

The paper introduces the extraction of objects that are higher than their surroundings, like houses, trees, or bridges, by combining the results of a segmentation of a DTM and a texture analysis of the gray image. We propose a new algorithm (called dual rank) to extract the ground in the DTM, which can be seen as an extension of the gray opening. The extraction of trees in the gray image is don...

The trigger for the nonlinear destabilization of the double tearing mode (DTM), referred to as a structuredriven instability leading to explosive growth and subsequent collapse, is investigated. We use the reduced MHD equations that solve the evolution of perturbations from an equilibrium deformed by two-dimensional magnetic islands during the slow evolution of the quasi-steady nonlinear regime...

Novel technique for enhanced visual recognition of the landform features developed by spatial analysis on the digital terrain model (DTM) is proposed. The approach called “visibility simulation technique” is consisted form the following steps: (1) visibility calculation, (2) altering an azimuth and zenith angle (following the proposed algorithm), (3) generating continuous surfaces that indicate...