Nonlinear Approach for Enhancement of Image Focus Volume in Shape From Focus

Mostly, shape-from-focus algorithms use local averaging using a fixed rectangle window to enhance the initial focus volume. In this linear filtering, the window size affects the accuracy of the depth map. A small window is unable to suppress the noise properly, whereas a large window oversmoothes th...

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Veröffentlicht in:	IEEE transactions on image processing 2012-05, Vol.21 (5), p.2866-2873
Hauptverfasser:	Mahmood, M. T., Tae-Sun Choi
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Anisotropic nonlinear diffusion filtering (ANDF) Applied sciences depth map Detection, estimation, filtering, equalization, prediction Diffusion Exact sciences and technology Filtering Filtration focus measure Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Image processing Image sequences Information, signal and communications theory Maximum likelihood detection Noise Nonlinear Dynamics Nonlinearity Rectangles Reproducibility of Results Sensitivity and Specificity Shape shape from focus (SFF) Signal and communications theory Signal processing Signal, noise Smoothing methods Telecommunications and information theory Three dimensional Three dimensional displays
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