NDLI: User-Oriented Image Quality Assessment of ZY-3 Satellite Imagery

Content Provider	IEEE Xplore Digital Library
Author	Lin Li Heng Luo Mengyuan She Haihong Zhu
Copyright Year	2008
Abstract	For the purpose of evaluating the image quality of ZY-3 (Ziyuan-3) satellite imagery and from the perspective of data users in various professions, this paper proposed a user-oriented quality assessment to assess the panchromatic and multispectral images of ZY-3, which included the assessment of its image statistical characteristics, image visual effect, and interpretability. In order to better understand the quality level of the ZY-3 image product and the scope of its applications, a comparison of image quality factors was conducted between ZY-3 image and SPOT-5 image due to the close similarity between their functionalities. As far as the ZY-3 image was concerned, features of its gray-scale statistics showed the advantage in its wider data range, higher standard deviation, and a better histogram presenting in image. The analysis of texture from the two images also revealed better performance of the ZY-3 image than that of SPOT-5 with respect to homogeneity (HOM), contrast (CON), entropy (ENT), and angular second moment (ASM). Moreover, the result of visual effect assessment also confirmed the good performance of ZY-3 data. An evaluation of the interpretability was conducted by using the National Imagery Interpretability Rating Scale (NIIRS). According to the relationship between NIIRS and mapping scale, the suitable mapping scales of the images from both ZY-3 and SPOT-5 were estimated from the viewpoint of image quality. As our survey shows, ZY-3 image products are marked by good gray scale characteristics and texture effect. According to its moderate NIIRS rating and result of mapping scale estimation, its maximum mapping scale potential is about 1:16 000.
Starting Page	4601
Ending Page	4609
Page Count	9
File Size	1272025
File Format	PDF
ISSN	19391404
Volume Number	7
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellites Correlation Image quality Gray-scale Standards Satellite broadcasting Visual effects ZY-3 (Ziyuan-3) Gray scale image quality image texture analysis interpretability National Imagery Interpretability Rating Scale (NIIRS) SPOT-5 user-oriented
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Computers in Earth Sciences

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