• Light-reflection random-target...

Result: Light-reflection random-target method for measurement of the modulation transfer function of a digital video-camera

Title:
Light-reflection random-target method for measurement of the modulation transfer function of a digital video-camera
Authors:
POSPISIL, J, JAKUBIK, P, MACHALA, L
Source:
Optik (Stuttgart). 116(12):573-585
Publisher Information:
Jena: Elsevier, 2005.
Publication Year:
2005
Physical Description:
print, 25 ref
Original Material:
INIST-CNRS
Subject Terms:
Optics, Optique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Optique, Optics, Formation des images et traitement optique, Imaging and optical processing, Fonctions de transfert optique et de transfert de modulation, Modulation and optical transfer functions, Sciences appliquees, Applied sciences, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Dispositifs optoélectroniques, Optoelectronic devices, Caméra vidéo, Video cameras, Densité spectrale, Spectral density, Echantillonnage, Sampling, Muestreo, Fonction transfert modulation, Modulation transfer function, Función transferencia modulación, Méthode mesure, Measuring methods, Photodétecteur, Photodetectors, Réflexion lumière, Light reflection, Répétabilité, Repeatability, Repetibilidad, 4230L, 8560G, Digital video camera, Light-reflection white-noise target, Power spectral density, Random-target measuring method
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
Department of Experimental Physics, Joint Laboratory of Optics, Palacký University, Academy of Sciences, 17. listopadu 50a, 772 02 Ohmwuc, Czech Republic
ISSN:
0030-4026
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=17262184
Rights:
Copyright 2006 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electronics

Physics: optics
Accession Number:
edscal.17262184
Database:
PASCAL Archive

Further Information

This article reports the suggestion, realization and verification of the newly developed measuring means of the noiseless and locally shift-invariant modulation transfer function (MTF) of a digital video camera in a usualincoherent visible region of optical intensity, especially of its combined imaging, detection, sampling and digitizing steps which are influenced by the additive and spatially discrete photodetector, aliasing and quantization noises. Such means relates to the still camera automatic working regime and static two-dimensional spatially continuous light-reflection random target of white-noise property. The introduced theoretical reason for such a random-target method is also performed under exploitation of the proposed simulation model of the linear optical intensity response and possibility to express the resultant MTF by a normalized and smoothed rate of the ascertainable output and input power spectral densities. The random-target and resultant image-data were obtained and processed by means of a processing and evaluational PC with computation programs developed on the basis of MATLAB 6.5. The present examples of results and other obtained results of the performed measurements demonstrate the sufficient repeatability and acceptability of the described method for comparative evaluations of the performance of digital video cameras under various conditions.