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Shape from focus for large image fields
- 1.0455225 - FZÚ 2016 RIV US eng J - Journal Article
Pavlíček, Pavel - Hamarová, Ivana
Shape from focus for large image fields.
Applied Optics. Roč. 54, č. 33 (2015), s. 9747-9751. ISSN 1559-128X. E-ISSN 2155-3165
R&D Projects: GA ČR GA13-12301S
Institutional support: RVO:68378271
Keywords : shape from focus * large image fields * optically rough surface
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 1.598, year: 2015
Shape from focus is a method for the accurate measurement of the geometrical shape of objects. The measurement principle is the local focus search. The method is suitable only for objects with a texture (optically rough surface). The longitudinal coordinate of a surface point is determined from the maximum of the focus measure function. The focus measure function expresses the quality of focus in a small image area. The measurement is fast because the focus measure function shows no oscillations. Thus, a large sampling step can be used. We present experimental results that demonstrate the capability of the proposed method.
Permanent Link: http://hdl.handle.net/11104/0255877
Number of the records: 1