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Machine Vision
Machine Vision :
Machine vision is the application of computer vision to factory automation. Just as human inspectors working on assembly lines visually inspect parts to judge the quality of workmanship, so machine vision systems use digital cameras and image processing software to perform similar inspections. A machine vision system is a computer that makes decisions based on the analysis of digital images.
From: en.wikipedia.org/wiki/Machine_vision
Machine Vision Without Pixels
This software is based on mathematical models that describe brain cells as linear filters.
The algorithm involves covering an image with an overlapping circular grid. Computations are performed on each circle (NOT at every pixel). At every circular receptive field, the subimage is convolved with steerable oriented filters that approximate the first and second derivatives of a Gaussian. Assuming that the subimage approximates a bar or an edge, it is possible to find its orientation and subpixel position. When we examine features normal to the dominant orientation, we can locate corners or interest points. The main output from the algorithm is a list of feature points, but the software also produces an image for quick verification. Preliminary investigations indicate that its speed is at least competitive with the Canny edge detector and Harris corner detector.
The algorithm involves covering an image with an overlapping circular grid. Computations are performed on each circle (NOT at every pixel). At every circular receptive field, the subimage is convolved with steerable oriented filters that approximate the first and second derivatives of a Gaussian. Assuming that the subimage approximates a bar or an edge, it is possible to find its orientation and subpixel position. When we examine features normal to the dominant orientation, we can locate corners or interest points. The main output from the algorithm is a list of feature points, but the software also produces an image for quick verification. Preliminary investigations indicate that its speed is at least competitive with the Canny edge detector and Harris corner detector.
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