Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23821
Title: Effects of JPEG compression on image classification
Authors: Lau, WL
Li, ZL 
Lam, KWK
Issue Date: 2003
Publisher: Taylor & Francis
Source: International journal of remote sensing, 2003, v. 24, no. 7, p. 1535-1544 How to cite?
Journal: International journal of remote sensing 
Abstract: With the improvement of spatial resolution, data volume has become an increasingly significant concern, as the shear volume of data is expensive and inefficient in terms of data transmission, processing and storage. As a result, many image compression methods are in use. JPEG is one of the most popular methods. Indeed JPEG has become an industrial standard and has been implemented in many remote sensing image processing systems. This paper aims to experimentally evaluate the effects of JPEG compression on image classification. A scene of SPOT multispectral images was used. The image was compressed by JPEG at various compression levels (or using compression quality factors). All the compressed images are classified using the maximum likelihood classifier (MLC) of supervised classification and ISODATA of unsupervised classification. The classified result using the original (uncompressed) image was used as the benchmark. From the results, it can be found that there could be a significant decrease in image quality when compression is over 35-fold. As a result, the accuracy of image classification is dramatically deteriorated. However, when the compression ratio is smaller than 35-fold, the deterioration of classification accuracy is linear.
URI: http://hdl.handle.net/10397/23821
ISSN: 0143-1161
EISSN: 1366-5901
DOI: 10.1080/01431160210142842
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

14
Last Week
0
Last month
Citations as of Nov 17, 2017

WEB OF SCIENCETM
Citations

9
Last Week
0
Last month
0
Citations as of Nov 16, 2017

Page view(s)

60
Last Week
2
Last month
Checked on Nov 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.