Studying That Smile

Author

Ribés, Alejandro ; Pillay, Ruven ; Schmitt, Francis ; Lahanier, Christian

Volume

25

Issue

4

fYear

2008

fDate

7/1/2008 12:00:00 AM

Firstpage

14

Lastpage

26

Abstract

A description of multispectral image capture is presented from a signal processing point of view. Indeed, this article is based on an equation that models the multispectral acquisition of images. The main components of this equation are described. They correspond to the lighting conditions, the filters, the sensor sensitivity, and associated noise sources. Moreover, the optimization problems involved in the design of multispectral cameras, their calibration, and the processing of the obtained data are introduced within the same mathematical framework.

Keywords

calibration; cameras; filtering theory; humanities; image colour analysis; lighting; noise; optimisation; painting; Mona Lisa painting; associated noise sources; camera calibration; filters; image multispectral acquisition; lighting conditions; mathematical framework; multispectral cameras design; optimization problems; sensor sensitivity; signal processing; Art; Cameras; Charge-coupled image sensors; Image restoration; Optical filters; Optical retarders; Optical sensors; Painting; Reflectivity; Sensor arrays;

fLanguage

English

Journal_Title

Signal Processing Magazine, IEEE

Publisher

ieee

ISSN

1053-5888

Type

jour

DOI

10.1109/MSP.2008.923091

Filename

4545845