Dr. Junqing Chen Profile

Dr. Junqing Chen

Software Engineer

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Publications (5)

Proceedings Article | 2 September 2009 Paper

Focus recovery for extended depth-of-field mobile imaging systems

Dan Lelescu, Kartik Venkataraman, Rob Mullis, Pravin Rao, Cheng Lu, Junqing Chen, Brian Keelan

Proceedings Volume 7443, 74430H (2009) https://doi.org/10.1117/12.824623

KEYWORDS: Image restoration, Point spread functions, Signal to noise ratio, Sensors, Interference (communication), Image processing, Imaging systems, Image sensors, Cameras, Signal processing

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Proceedings Article | 19 January 2009 Paper

Softcopy quality ruler method: implementation and validation

Elaine Jin, Brian Keelan, Junqing Chen, Jonathan Phillips, Ying Chen

Proceedings Volume 7242, 724206 (2009) https://doi.org/10.1117/12.805922

KEYWORDS: Modulation transfer functions, Image quality, Cameras, Standards development, Image quality standards, Steiner quadruple pulse system, Image processing, Zoom lenses, Digital imaging, Calibration

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Proceedings Article | 18 March 2005 Paper

Experimental determination of visual color and texture statistics for image segmentation

Junqing Chen, Thrasyuouloss Pappas

Proceedings Volume 5666, (2005) https://doi.org/10.1117/12.597000

KEYWORDS: Image segmentation, Image processing algorithms and systems, Statistical analysis, Image classification, Visualization, Data modeling, Feature extraction, Statistical modeling, Digital filtering, Visual system

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Proceedings Article | 17 June 2003 Paper

Perceptual color and spatial texture features for segmentation

Junqing Chen, Thrasyvoulos Pappas, Alexandra Mojsilovic, Bernice Rogowitz

Proceedings Volume 5007, (2003) https://doi.org/10.1117/12.485528

KEYWORDS: Image segmentation, Image processing algorithms and systems, Feature extraction, Digital filtering, Visual system, Image retrieval, Algorithm development, Image resolution, Image compression, Distance measurement

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Proceedings Article | 8 June 2001 Paper

Perceptual coders and perceptual metrics

Junqing Chen, Thrasyvoulos Pappas

Proceedings Volume 4299, (2001) https://doi.org/10.1117/12.429485

KEYWORDS: Image compression, Image quality, Photonic integrated circuits, Wavelets, Visualization, Quantization, Visual process modeling, Visual system, Image resolution, Eye models

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