DocumentCode
1283071
Title
Focusing criterion
Author
Charfi, Malek ; Nyeck, A. ; Tosser, A.
Author_Institution
ENIM Lab. de Mecatronique Ind., Metz, France
Volume
27
Issue
14
fYear
1991
fDate
7/4/1991 12:00:00 AM
Firstpage
1233
Lastpage
1235
Abstract
A focusing criterion using the discrete cosine transform is described. This criterion may be used for improving an automatic focusing procedure with the aim of performing faster measurement and more objective collection of data in, for example, quality control and pattern recognition. The principle of this criterion and the set of used parameters are given. A discussion of several laboratory experiments is added to show the extended field of implementation of this criterion.
Keywords
computerised picture processing; focusing; transforms; DCT; autofocusing criterion; automatic focusing procedure; discrete cosine transform; field of implementation; focusing control; focusing criterion; laboratory experiments; objective collection of data; performing faster measurement;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19910774
Filename
81160
Link To Document