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Depth estimation of an object in a scene from images intensity is an essential problem in machine vision applications. Here, In order to obtain the distance between object and camera, a novel method presented for depth estimation from a single defocus blurred image. Unlike other methods for depth estimation which are based on the characteristics of the three-dimensional information, here, only constant...
In Close Range Photometry, the rapid development of low-cost digital imaging systems has led to an increased adaptation of uncalibrated consumer cameras for metrological purposes. Many well-developed techniques to derive parameters describing the unknown imaging behavior of camera and optics from a set of recorded images exist. Within an industrial measurement environment, further constraints may...
In this paper a vision system for the control quality in a factory of corrugated cardboard is described. The problem under study is the automatic detection and monitoring of the sheets of cardboard constituting a unit of sale. A precise measurement of the number of sheets is a difficult task, since, during the process, some sheets must be discarded, because of their inferior quality, or because they...
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