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Proceedings Paper

Modulation transfer function determination of video capture cards by speckle patterns
Author(s): Antonio M. Pozo; José J. Castro; Manuel Rubiño
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Paper Abstract

Today, video cameras connected to frame grabbers or video capture cards (VCCs) are used in many applications such as traffic control, surveillance, medical systems or machine vision. In this work, we present a method for determining the spatial-frequency response of VCCs. This method is based on the modulation transfer function (MTF) determination from speckle patterns using a low-cost experimental setup. We have evaluated and compared three different VCCs. The three VCCs produce an amplification (boost) in the horizontal MTF in a different spatial-frequency range, also differing in the maximum amplification value.

Paper Details

Date Published: 11 September 2012
PDF: 6 pages
Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 841316 (11 September 2012); doi: 10.1117/12.978187
Show Author Affiliations
Antonio M. Pozo, Univ. de Granada (Spain)
José J. Castro, Univ. de Granada (Spain)
Manuel Rubiño, Univ. de Granada (Spain)

Published in SPIE Proceedings Vol. 8413:
Speckle 2012: V International Conference on Speckle Metrology
Ángel Fernandez Doval; Cristina Trillo, Editor(s)

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