Dr. Vidya Venkatachalam Profile

Dr. Vidya Venkatachalam

Vision System Research Eng at Mitutoyo Research & Development America Inc

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Publications (5)

Proceedings Article | 22 May 2003 Paper

Comprehensive investigation of subpixel edge detection schemes in metrology

Vidya Venkatachalam, Richard Wasserman

Proceedings Volume 5011, (2003) https://doi.org/10.1117/12.474070

KEYWORDS: Signal to noise ratio, Edge detection, Reconstruction algorithms, Data modeling, Image resolution, Point spread functions, Computer simulations, Visual process modeling, Detection and tracking algorithms, Image processing

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Proceedings Article | 22 May 2003 Paper

Effect of acquisition system features on algorithm performance

Vidya Venkatachalam, Richard Wasserman, Hiroyuki Yoshida, Hidemitsu Asano, Yasuhiro Takahama

Proceedings Volume 5011, (2003) https://doi.org/10.1117/12.474069

KEYWORDS: Cameras, Signal to noise ratio, Light sources and illumination, Imaging systems, Quantization, Digital cameras, Image quality, Analog electronics, Image resolution, Spatial resolution

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Proceedings Article | 4 December 2000 Paper

Pseudo power signatures for image classification: SVD and projector approaches

Vidya Venkatachalam

Proceedings Volume 4119, (2000) https://doi.org/10.1117/12.408629

KEYWORDS: Wavelet transforms, Wavelets, Image segmentation, Image classification, Matrices, Principal component analysis, Projection systems, Algorithm development, Pattern recognition, Time-frequency analysis

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Proceedings Article | 24 August 2000 Paper

Multiscale SAR image segmentation using wavelet-domain hidden Markov tree models

Vidya Venkatachalam, Hyeokho Choi, Richard Baraniuk

Proceedings Volume 4053, (2000) https://doi.org/10.1117/12.396322

KEYWORDS: Image segmentation, Wavelets, Synthetic aperture radar, Wavelet transforms, Image processing, Data modeling, Image fusion, Expectation maximization algorithms, Image processing algorithms and systems, Speckle

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Proceedings Article | 24 August 2000 Paper

Unsupervised SAR image segmentation using recursive partitioning

Vidya Venkatachalam, Robert Nowak, Richard Baraniuk, Mario Figueiredo

Proceedings Volume 4053, (2000) https://doi.org/10.1117/12.396323

KEYWORDS: Image segmentation, Synthetic aperture radar, Data modeling, Image processing, Image processing algorithms and systems, Receivers, Computer programming, Roads, Detection and tracking algorithms, Wavelets

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