Mr. Chow Jeng Wong Profile

Chow Jeng Wong

Senior Lecturer at Univ Sains Malaysia

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Author

Publications (21)

Proceedings Article | 11 May 2009 Paper

Multispectral air pollution sensor to characterize of total suspended particulates (TSP) concentration

H. S. Lim, S. G. Daraigan, M. Z. MatJafri, K. Abdullah, C. J. Wong

Proceedings Volume 7336, 73361O (2009) https://doi.org/10.1117/12.820306

KEYWORDS: Sensors, Air contamination, Optical sensors, Light emitting diodes, Photodetectors, Earth's atmosphere, Algorithm development, Particles, Visible radiation, Photodiodes

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Proceedings Article | 11 May 2009 Paper

Temporal and spatial air quality monitoring using internet protocol camera and LANSAT5 satellite image

K. Abdullah, T. S. Chin, H. S. Lim, M. Z. MatJafri, C. J. Wong

Proceedings Volume 7336, 73361P (2009) https://doi.org/10.1117/12.820322

KEYWORDS: Reflectivity, Atmospheric particles, IP cameras, Satellites, Landsat, Algorithm development, Image quality, Earth observing sensors, Satellite imaging, Aerosols

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Proceedings Article | 28 April 2009 Paper

Water quality mapping using Landsat TM imagery

K. Abdullah, M. Z. MatJafri, C. J. Wong, H. S. Lim, N. Mohd Saleh, A. N. Alias, M. R. Mustapha-Rosli

Proceedings Volume 7341, 734107 (2009) https://doi.org/10.1117/12.820308

KEYWORDS: Algorithm development, Landsat, Water, Reflectivity, Satellites, Absorption, Satellite imaging, Earth observing sensors, Calibration, Optical properties

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Proceedings Article | 28 April 2009 Paper

Using webcam for indoor air quality monitoring

M. Z. MatJafri, H. S. Lim, K. Abdullah, C. K. Teo, C. J. Wong

Proceedings Volume 7341, 734110 (2009) https://doi.org/10.1117/12.820329

KEYWORDS: Algorithm development, Reflectivity, Phase modulation, Image processing, Cameras, Atmospheric particles, Digital imaging, Aerosols, Image quality, Molecules

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Proceedings Article | 27 April 2009 Paper

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

C. Wong, K. Abdullah, M. Mat Jafri, H. Lim

Proceedings Volume 7334, 73341I (2009) https://doi.org/10.1117/12.820326

KEYWORDS: Cameras, Particles, Reflectivity, Atmospheric particles, Algorithm development, Digital cameras, Aerosols, Molecules, Scattering, Pollution

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Proceedings Article | 27 April 2009 Paper

Sea surface temperature algorithm with transmittance and sea surface emissivity dependence

H. Ng, C. Wong, M. MatJafri, K. Abdullah

Proceedings Volume 7334, 73341H (2009) https://doi.org/10.1117/12.820302

KEYWORDS: Transmittance, Sensors, Algorithm development, Temperature metrology, MODIS, Atmospheric sensing, Clouds, Infrared radiation, Data modeling, Black bodies

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Proceedings Article | 13 October 2008 Paper

A satellite AOT derived from the ground sky transmittance measurements

M. MatJafri, C. Wong, K. Abdullah, K. Tan, N. Mohd. Saleh, H. Lim

Proceedings Volume 7110, 711019 (2008) https://doi.org/10.1117/12.800067

KEYWORDS: Reflectivity, Atmospheric particles, Satellites, Transmittance, Aerosols, Atmospheric optics, Atmospheric monitoring, Landsat, Algorithm development, Earth observing sensors

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Proceedings Article | 10 October 2008 Paper

Remote sensing retrievals from SPOT measurements of aerosol over Penang Island, Malaysia

N. Mohd. Saleh, H. S. Lim, K. Abdullah, C. J. Wong, M. Z. MatJafri, K. C. Tan

Proceedings Volume 7109, 71090Y (2008) https://doi.org/10.1117/12.800166

KEYWORDS: Reflectivity, Satellites, Algorithm development, Aerosols, Earth observing sensors, Atmospheric particles, Satellite imaging, Atmospheric optics, Remote sensing, Air contamination

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Proceedings Article | 7 October 2008 Paper

Using visible remotely sensed data for air quality study

K. Abdullah, M. Z. MatJafri, K. C. Tan, C. J. Wong, N. Mohd Saleh, H. S. Lim

Proceedings Volume 7114, 71140T (2008) https://doi.org/10.1117/12.800163

KEYWORDS: Reflectivity, Atmospheric particles, Satellites, Algorithm development, Aerosols, Landsat, Earth observing sensors, Air contamination, Visible radiation, Mid-IR

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Proceedings Article | 18 April 2008 Paper

Algorithm for haze determination using digital camera images

H. S. Lim, K. Abdullah, C. J. Wong, M. Z. MatJafri, S. A. Hashim

Proceedings Volume 6951, 69510E (2008) https://doi.org/10.1117/12.777897

KEYWORDS: Digital cameras, Algorithm development, Atmospheric particles, Reflectivity, Air contamination, Aerosols, Detection and tracking algorithms, Atmospheric modeling, Atmospheric optics, Data modeling

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Proceedings Article | 17 March 2008 Paper

High-spatial resolution land cover mapping using remotely sensed image

H. S. Lim, A. N. Alias, S. AlSultan, N. Mohd. Saleh, M. Z. MatJafri, C. J. Wong, K. Abdullah

Proceedings Volume 6977, 69770S (2008) https://doi.org/10.1117/12.777240

KEYWORDS: Satellites, Image classification, Satellite imaging, Earth observing sensors, Remote sensing, Digital imaging, Accuracy assessment, Image resolution, Associative arrays, Image processing

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Proceedings Article | 17 March 2008 Paper

Calibration of visible and near infrared spectrums for measuring freshness of vegetables

M. S. Jaafar, M. Z. Mat Jafri, C. J. Wong, Faisal Abdullah

Proceedings Volume 6939, 69390J (2008) https://doi.org/10.1117/12.777713

KEYWORDS: Light sources, Near infrared, Light emitting diodes, Visible radiation, Scattering, Sensors, Backscatter, Tissue optics, Absorption, Calibration

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Proceedings Article | 17 March 2008 Paper

Land cover mapping after the tsunami event over Nanggroe Aceh Darussalam (NAD) province, Indonesia

N. Mohd. Saleh, M. S. Surbakti, K. Abdullah, H. S. Lim, M. Z. MatJafri, A. N. Alias, C. J. Wong

Proceedings Volume 6977, 69770H (2008) https://doi.org/10.1117/12.777256

KEYWORDS: Remote sensing, Image classification, Satellites, Landsat, Satellite imaging, Earth observing sensors, Accuracy assessment, Analytical research, Digital imaging, Physics

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Proceedings Article | 4 May 2007 Paper

Real-time air quality monitoring by using internet video surveillance camera

C. Wong, K. Low, M. MatJafri, H. Lim, K. Abdullah

Proceedings Volume 6538, 65381Q (2007) https://doi.org/10.1117/12.719137

KEYWORDS: IP cameras, Cameras, Internet, Video surveillance, Reflectivity, Algorithm development, Image compression, Error analysis, Sensors, Atmospheric particles

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Proceedings Article | 30 April 2007 Paper

Real-time PM10 concentration monitoring on Penang Bridge by using traffic monitoring CCTV

K. L. Low, C. J. Wong, M. MatJafri, K. Abdullah, H. S. Lim

Proceedings Volume 6560, 65600R (2007) https://doi.org/10.1117/12.719055

KEYWORDS: Reflectivity, Algorithm development, Bridges, Cameras, Atmospheric particles, Content addressable memory, Error analysis, Atmospheric modeling, Internet, Calibration

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Proceedings Article | 17 May 2006 Paper

Tropospheric aerosols remote sensing over the water surface of Penang Island

N. Mohd. Salleh, S. Hashim, C. Wong, H. Lim, K. Abdullah, M. MatJafri

Proceedings Volume 6235, 62351N (2006) https://doi.org/10.1117/12.665432

KEYWORDS: Aerosols, Transmittance, Atmospheric particles, Remote sensing, Satellites, Reflectivity, Ocean optics, Digital image processing, Image analysis, Earth observing sensors

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Proceedings Article | 10 May 2006 Paper

Water pollution monitoring using optical sensor based on transmitted light

Mohd Matjafri, Sami Gumaan Daraigan, Syahril Hashim, Lim San, Khiruddin Abdullah

Proceedings Volume 6201, 62010U (2006) https://doi.org/10.1117/12.665421

KEYWORDS: Solids, Light emitting diodes, Optical sensors, Sensors, Algorithm development, Light scattering, Particles, Water contamination, Optical testing, Scattering

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Proceedings Article | 10 May 2006 Paper

Multi-spectral optical sensor based on light scattering for measuring total suspended solids

Khiruddin Abdullah, Mohd Matjafri, Wong Jeng, Lim San

Proceedings Volume 6201, 62010W (2006) https://doi.org/10.1117/12.665407

KEYWORDS: Light scattering, Solids, Light emitting diodes, Optical sensors, Sensors, Photodetectors, Scattering, Particles, Silicon, Photodiodes

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Proceedings Article | 4 May 2006 Paper

Image data transfer over the Internet protocol for air quality studies

H. Lim, K. Abdullah, M. MatJafri, C. Wong

Proceedings Volume 6233, 62330Z (2006) https://doi.org/10.1117/12.665425

KEYWORDS: Reflectivity, Image quality, Atmospheric particles, Digital cameras, Internet, Digital imaging, IP cameras, Atmospheric modeling, Algorithm development, Aerosols

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Proceedings Article | 4 May 2006 Paper

The relationship between air pollution and satellite data from OCTS

N. Saleh, H. Lim, C. Wong, K. Abdullah, M. MatJafri

Proceedings Volume 6233, 62331O (2006) https://doi.org/10.1117/12.665429

KEYWORDS: Reflectivity, Optical coherence tomography, Satellites, Algorithm development, Earth observing sensors, Aerosols, Satellite imaging, Atmospheric particles, Infrared radiation, Thermography

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Proceedings Article | 17 April 2006 Paper

Land cover mapping from remote sensing data

N. Saleh, K. Abdullah, Sultan AlSultan, C. Wong, H. Lim, M. MatJafri

Proceedings Volume 6245, 62450P (2006) https://doi.org/10.1117/12.665433

KEYWORDS: Associative arrays, Remote sensing, Image classification, Satellites, Landsat, Satellite imaging, Earth observing sensors, Scene classification, Physics, Aluminum

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Showing 5 of 21 publications

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