Mr. Nabin K. Shrestha Profile

Nabin K. Shrestha

at Kathmandu Univ

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Proceedings Article | 19 March 2009 Paper

Classification of biological and non-biological fluvial particles using image processing and artificial neural network

Bim Prasad Shrestha, Nabin Kumar Shrestha, Laxman Poudel

Proceedings Volume 7343, 73430K (2009) https://doi.org/10.1117/12.818655

KEYWORDS: Particles, Image processing, Neural networks, Water, Reflectivity, Image classification, Artificial neural networks, Imaging spectroscopy, Cameras, CCD cameras

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Particles flowing along with water largely affect safe drinking water, irrigation, aquatic life preservation and hydropower generation. This research describes activities that lead to development of fluvial particle characterization that includes detection of biological and non-biological particles and shape characterization using Image Processing and Artificial Neural Network (ANN). Fluvial particles are characterized based on multi spectral images processing using ANN. Images of wavelength of 630nm and 670nm are taken as most distinctive characterizing properties of biological and non-biological particles found in Bagmati River of Nepal. The samples were collected at pre-monsoon, monsoon and post-monsoon seasons. Random samples were selected and multi spectral images are processed using MATLAB 6.5. Thirty matrices were built from each sample. The obtained data of 42 rows and 60columns were taken as input training with an output matrix of 42 rows and 2 columns. Neural Network of Perceptron model was created using a transfer function. The system was first validated and later on tested at 18 different strategic locations of Bagmati River of Kathmandu Valley, Nepal. This network classified biological and non biological particles. Development of new non-destructive technique to characterize biological and non-biological particles from fluvial sample in a real time has a significance breakthrough. This applied research method and outcome is an attractive model for real time monitoring of particles and has many applications that can throw a significant outlet to many researches and for effective utilization of water resources. It opened a new horizon of opportunities for basic and applied research at Kathmandu University in Nepal.

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