EFFECTIVENESS OF SPECTRAL SIMILARITY MEASURES TO MONITOR HEALTH OF CROPS FOR SUSTAINABLE AGRICULTURE

Authors

  • Hasmukh J. Chauhan Assistant Professor, Birla Vishwakarma Mahavidyalaya (An Autonomous Engineering Institution), Anand, Gujarat

DOI:

https://doi.org/10.25175/jrd/2018/v37/i2/129633

Keywords:

Spectral Similarity Measure, Spectral Information Measure, Spectral Information Divergence, Regulated Field and Unregulated Field.

Abstract

This research paper attempts to show efficient use of spectral similarity measures to check desired growth of the crops by comparing farmer’s field crops spectra with test field crops spectra of same development stage. Optimum amount of nitrogen (as fertiliser) and water applied increase the NIR reflectance. Dissimilarity in vegetation vigour, resulting from variation in nitrogen and water applied, are easily located when NIR imagery or data are used. Stress is shown by progressive decrease in NIR reflectance. The study is carried out for three different crops and field spectra collected from farmers’ field were compared with test fields at IARI, New Delhi. Spectral Information Divergence is used as spectral similarity measure and close match between farmer’s and test field spectra has been found for four levels of nitrogen and water applied to chickpea, sorghum and wheat crops. Similarity of spectra from farmer’s fields with test fields is mapped by SID measure equivalent to coefficient of correlation and average SID measure equivalent to co-efficient of correlation for chickpea was 0.997, for sorghum was 0.996 and for wheat was 0.994. SID similarity among spectra from farmer’s fields with spectra from test fields, if crops were water stressed: 0.997 for chickpea, 0.996 for sorghum and 0.991 for wheat. SID similarity among spectra of farmer’s and test fields, if crops were Nitrogen stressed: 0.997 for chickpea, 0.994 for sorghum and 0.997 for wheat.

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Published

2018-04-02

How to Cite

Chauhan, H. J. (2018). EFFECTIVENESS OF SPECTRAL SIMILARITY MEASURES TO MONITOR HEALTH OF CROPS FOR SUSTAINABLE AGRICULTURE. Journal of Rural Development, 37(2), 157–166. https://doi.org/10.25175/jrd/2018/v37/i2/129633

References

Chang, C.I., (2000), An Information Theoretic-based Approach to Spectral Variability, Similarity and Discriminability for Hyperspectral Image Analysis, IEEE Transaction on Information Theory, 46 (5), 1927– 1932.

Chang, C.I., (2003), Hyperspectral Imaging: Techniques for Spectral Detection and Classification. Kluwer Academic / Plenum Publishers, New York.

Chauhan Hasmukh and B. Krishna Mohan (2014), Effectiveness of Spectral Similarity Measures to Develop Precise Crop Spectra for Hyperspectral Data Analysis.

Chauhan Hasmukh (2017), ‘Effectiveness of Spectral Similarity Measures to Develop Spectra for Visually Inseparable Classes and Their Classification using Hyperspectral Data’, p. 56, Unpublished Ph.D. Thesis, Indian Institute of Technology Bombay, Mumbai, India.

Cover, T and Thomas, J. (1991), Elements of Information Theory, New York, Wiley, ISBN 0-471-06259-6.

Du H., C.I. Chang, H. Ren, F.M. D’Amico, J. O. and Jensen J. (2004), New Hyperspectral Discrimination Measure for Spectral Characterisation, Optical Engineering. Vol. 43, No. 8, 1777-1786.

Filella I. and Penuelas J. (1994), The red edge position and shape as indicators of plant chlorophyll content, biomass and hydric status, International Journal of Remote Sensing, Vol: 15, No.7, pp. 1459-1470.

Gomez, R.B. (2001), Spectral library issues in hyperspectral imaging applications, Paper presented at the 5th Joint Conference on Standoff detection for Chemical and Biological Defense, Williamsburg, Virginia, 2428, September, 2001.

Kong Xiangbing, Shu Ning, Huang Wenyu and Fu Jing, (2010), The research on effectiveness of spectral similarity measures for hyperspectral image, Presented in 3rd International Congress on Image and Signal Processing (CISP2010), 978-1-4244-6516-2010, IEEE.

Kullback, S. (1997), Information Theory and Statistics, Dover Gloucester, MA.

Lillesand, T.M., and Kiefer, R.W. (1999), Remote Sensing and Image Interpretation, John Wiley & Sons. Inc., New Jersey.

Rao N.R., Garg P.K. and Ghosh, S.K. (2007), Development of an agricultural crops spectral library and classification of crops at cultivar level using hyperspectral data, Precision Agriculture, 8: 173-185, DOI: 10.1007/s11119-007-9037-x.

Van der Meer F. (2005), The effectiveness of spectral similarity measures for the analysis of hyperspectral imagery, International Journal of Applied Earth Observation and Geoinformation, DOI:10.1016/ j.jag.2005.06.001.