|
|
| 11. |
Image enhancement: using background discriminant transformation |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2153-2167
K. V. SHETTIGARA,
Preview
|
PDF (478KB)
|
|
摘要:
The success of automatic pattern recognition systems depends on the enhancement of significant features in relation to the irrelevant background information in the pre-processing stage. In images, the objects of relevance are generally enhanced by linear/non-linear stretching, histogram equalization and spatial filtering, which are all operations in a single band (univariate). In a multivariate space, linear transformations such as principal component analysis are very popular for this purpose. A simple rotation of axes, as in the principal component transformation, to the maximum variance direction is often insufficient to enhance objects camouflaged by the background. This is often due to the enhancement of the background together with the features of interest or non-background. In this paper a new technique is presented to address this problem. The images are modelled as having two classes, namely background and non-background. The technique, called background discriminant transformation (BDT), is designed to maximize the non-background class variance relative to the background variance. The technique has applications to image enhancement in mineral exploration, planetary sciences, biological and medical sciences, and defence applications.
ISSN:0143-1161
DOI:10.1080/01431169108955242
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
| 12. |
A Review of: “A Guide to Remote Sensing. Interpreting Images of the Earth”. By S. A. DRURY (Oxford: Oxford University Press, 1990.) [Pp. 199.] Price £20. (paperback). |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2169-2170
FranzK. LIST,
Preview
|
PDF (91KB)
|
|
ISSN:0143-1161
DOI:10.1080/01431169108955244
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
| 13. |
A Review of: “Millimetric Radar Backscatler from Snowcover”. By E. D. WILLIAMS, D. E. SUGDEN, J. G. GALLAGHER and R. V. BIRNIE (London: Remote Sensing Society, 1990) [Pp. 131] Price £1800. |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2170-2171
JAMESB. MEAD,
Preview
|
PDF (101KB)
|
|
ISSN:0143-1161
DOI:10.1080/01431169108955245
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
| 14. |
A Review of: “Cartography, Past, Present and Future: A Festschrift for F. J. Ormeling”. Edited by D. W. RHIND and D. R. F. TAYLOR (London: Published on behalf of the ICA by Elsevier Applied Science Publishers, 1989) [Pp. 193, 17 figures.] Price £3500. |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2171-2172
MICHAEL WOOD,
Preview
|
PDF (99KB)
|
|
ISSN:0143-1161
DOI:10.1080/01431169108955246
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
| 15. |
A Review of: “Microwave Radiometer Systems”: Design and Analysis. By NILS SKOU. (Norwood, Massachusetts: Artech House, Inc., 1989.) [Pp. 162]. |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2172-2172
MARTTI HALLIKAINEN,
Preview
|
PDF (48KB)
|
|
ISSN:0143-1161
DOI:10.1080/01431169108955247
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
| 16. |
A Review of: “Remote Sensing, theorie en toepassingen van landobservatie (Remoie Sensing theory and applications of land observation”). Edited by H, J. BUITEN and J. G. P. W. CLEVERS. Series ‘Dynamiek, indenting and bcheer van landelijke gebieden’, part 2. (Wageningen: Pudoe Publ., 1990.) [Pp. 504 ] (312 figs, 38 tables, 22 colour plates. 10 supplements, glossary.) |
| |
International Journal of Remote Sensing,
Volume 12,
Issue 10,
1991,
Page 2173-2173
J. J. NOSSIN,
Preview
|
PDF (46KB)
|
|
ISSN:0143-1161
DOI:10.1080/01431169108955248
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
|
|
首页
