W I L L K O M M E N
	Universität Freiburg - Institut für Informatik Lehrstuhl für Mustererkennung und Bildverarbeitung (LMB)

LMB Mitarbeiter Forschung Studien-, Diplom- und Bachelor... Algorithmen zur Klassifikation... Trifocal Tensor Estimation () Evaluation of Blind Deconvolut... Matching of crystal surfaces Lernen von visuellen Objektkla... Comparison of Polar Fourier Tr... Subpixelgenaue Bewegungsschaet... Konturdetektion in zeitaufgelo... Bildverarbeitungspraktikum I Project: Bildrektifikation Project: Active Countour und S... Lehrveranstaltungen Veranstaltungen Publikationen Awards () Stellenangebote TILDA Software () Interna  Diese Seite optimiert für Ausdruck [No english page available]

ALBERT-LUDWIGS-UNIVERSITÄT FREIBURG INSTITUTE FOR COMPUTER SCIENCE Chair of Pattern Recognition and Image Processing Prof. Dr.-Ing. Hans Burkhardt Georges-Köhler-Allee 52, Room 01-029, D-79110 Freiburg, Tel. 0761-203-8260 The Chair of Pattern Recognition and Image Processing is currently offering a Bachelor-/ Studienarbeit (Student research project) on Matching of crystal surfaces Finding nucleating agents for phase change materials (PCM) in large crystal structure databases is a crucial step towards the development of an efficient energy storage. One expects that, analogous to growing crystals on substrates of a (geometrically) similar structure, a structure is probable to act as a nucleating agent for another structure if there exists a strong similarity between the surfaces of both structures. One way to represent crystal surfaces is by considering their electron density distribution. The aim of this work is to compare precomputed electron density distributions of surfaces of a small database consisting of 30 crystal structures. This can be done by registration; the remaining distance after registration is a measure of dissimilarity of the matched structures. Different methods for rigid registration in 3D shall be tested, e.g.: cross-correlation methods mutual information methods entropy based methods. Bibliography 1 E. Katchalski-Katzir, I. Shariv, M. Eisenstein, A. Friesem, C. Afalo, and A. Vakser: Molecular surface recognition: Determination of geometric fit between proteins and their ligands by correlation techniques . Proceedings of the National Academy of Sciences of the United States of America , 89, pages 2195-2199, 1992. 2 J. Pluim, J. Maintz, and M. Viergever: Mutual-Information-Based Registration of Medical Images: A Survey. IEEE Transactions on medical imaging,22, pages 986-1004, 2003. Candidates: Students in electrical engineering, physics, computer science or mathematics. Please contact: M. Keuper Room: 01-023 Telephon: 0761/203-8271 E-Mail: keuper@informatik.uni-freiburg.de June 2008