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Title: Low cost subpixel method for vibration measurement

Traditional vibration measurement methods are based on devices that acquire local data by direct contact (accelerometers, GPS) or by laser beams (Doppler vibrometers). Our proposal uses video processing to obtain the vibration frequency directly from the scene, without the need of auxiliary targets or devices. Our video-vibrometer can obtain the vibration frequency at any point in the scene and can be implemented with low-cost devices, such as commercial cameras. Here we present the underlying theory and some experiments that support our technique.
Authors:
 [1] ; ; ; ;  [2] ;  [3]
  1. Department of Civil Engineering, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)
  2. Inst. of Physics Applied to the Sciences and Technologies, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)
  3. Department of Optics, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)
Publication Date:
OSTI Identifier:
22311317
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1600; Journal Issue: 1; Conference: AIVELA 2014: 11. international conference on vibration measurements by laser and noncontact techniques, Ancona (Italy), 25-27 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAMERAS; DOPPLER EFFECT; LASER RADIATION; MEASURING METHODS; MECHANICAL VIBRATIONS