Share Email Print
cover

Proceedings Paper

The study and implementation of extraction HJ1A HSI image data based on A HDF5 file
Author(s): Yuanfeng Wu; Bing Zhang; Junsheng Li; Hao Zhang; Qian Shen; Di Wu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

HJ1A HSI is an interferometric imaging spectrometer (Hyper-spectral Imager, sensor ID: HSI) of HJ-1 small satellite. The hyper-spectral image data are organized and stored in hierarchical data format version 5 (HDF5) files. This paper presents the data model, file structure, library and programming model of HDF5 file format. The adapter design pattern is used for translating hdf5 interface into a compatible interface. Then, we give a detailed analysis of HJ1A hyper-spectral image data. The HJ1A hyper-spectral image data model includes five groups: 'GlobalAttributes', 'ImageAttributes', 'ImageData', 'MapInformation', and 'ProductParameters'' under the root group. The 'ImageData' group includes three datasets: 'BandData', 'CalibrationCoefficient', and 'WaveLength'. Based on the relationships between the models and implementations, we give a flow chart of extraction HJ1A hyper-spectral image data from hdf5 files. The level2 product of HJ1A hyper-spectral image data is used for experiment. We present the RGB color composite image and 3D cube of the extracted data. Tests show that the data extraction is correct and rapid with this approach. This work provides a solid foundation for quality evaluation and application of HJ1A hyper-spectral image.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7494, MIPPR 2009: Multispectral Image Acquisition and Processing, 74941L (30 October 2009); doi: 10.1117/12.833065
Show Author Affiliations
Yuanfeng Wu, Ctr. for Earth Observation and Digital Earth, CAS (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Bing Zhang, Ctr. for Earth Observation and Digital Earth, CAS (China)
Junsheng Li, Ctr. for Earth Observation and Digital Earth, CAS (China)
Hao Zhang, Ctr. for Earth Observation and Digital Earth, CAS (China)
Qian Shen, Ctr. for Earth Observation and Digital Earth, CAS (China)
Di Wu, Ctr. for Earth Observation and Digital Earth, CAS (China)
Graduate Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 7494:
MIPPR 2009: Multispectral Image Acquisition and Processing
Faxiong Zhang; Faxiong Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top