Determination of particle concentration in the air using a digital SLR camera

C. J. Wong; M. Z. Mat Jafri; K. Abdullah; H. S. Lim

doi:10.1117/12.820326

27 April 2009 Determination of particle concentration in the air using a digital SLR camera

C. J. Wong, M. Z. Mat Jafri, K. Abdullah, H. S. Lim

Proceedings Volume 7334, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XV; 73341I (2009) https://doi.org/10.1117/12.820326
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Many researches showed that pollution particles are associated with adverse health effects. These particles are 10 micrometers in diameter or smaller (PM₁₀). Now the challenge is to develop a better technique for monitoring the concentration of these particles. In this study, we intend to use a Single Lens Reflex (SLR) camera to determine particle concentration in the air using our own developed algorithm. This algorithm was developed based on the regression analysis of relationship between the measured reflectance and the reflected components from a surface material and the atmosphere. This algorithm is used to convert multispectral image pixel values acquired by this camera into quantitative values of the concentrations of PM₁₀. These computed PM₁₀ concentrations were compared to other standard values measured by a DustTrak^TM meter. The validated result of the newly develop algorithm produced a high degree of accuracy as indicated by high correlation coefficient (R²) and low root-mean-square-error (RMS).

Citation Download Citation

C. J. Wong, M. Z. Mat Jafri, K. Abdullah, and H. S. Lim "Determination of particle concentration in the air using a digital SLR camera", Proc. SPIE 7334, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XV, 73341I (27 April 2009); https://doi.org/10.1117/12.820326

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