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Download Advanced Concepts for Intelligent Vision Systems: 15th by Christophe Deknudt, Franc̨ois-Xavier Coudoux, Patrick Corlay, PDF

By Christophe Deknudt, Franc̨ois-Xavier Coudoux, Patrick Corlay, Marc Gazalet (auth.), Jacques Blanc-Talon, Andrzej Kasinski, Wilfried Philips, Dan Popescu, Paul Scheunders (eds.)

This e-book constitutes the completely refereed complaints of the fifteenth overseas convention on complex strategies for clever imaginative and prescient platforms, ACIVS 2013, held in Poznań, Poland, in October 2013. The sixty three revised complete papers have been rigorously chosen from 111 submissions. the themes lined are aquisition, pre-processing and coding, biometry, type and popularity, intensity, 3D and monitoring, effective implementation and frameworks, low point picture research, segmentation and video analysis.

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Additional info for Advanced Concepts for Intelligent Vision Systems: 15th International Conference, ACIVS 2013, Poznań, Poland, October 28-31, 2013. Proceedings

Example text

3 Decision Making Process and ET Modification This process is intended to make a decision about if the ET must be modified or it is valid, without requiring any change. With such purpose we compute the histogram of the ROI for the three RGB spectral channels, which the source of information for the proposed decision making process. Figure 3(a) displays an original image with the ROI outlined on the field under perspective projection and with the system geometry known [14]. Figure 3(b) displays the corresponding histogram obtained from the ROI.

For a fixed focal length Distance Estimation with a Two or Three Aperture SLR Digital Camera 31 camera, f will be given in the lens specification. If a zoom lens is used, an additional step of calibration would be required. The value of α that converts shifts in millimeters to shifts in pixels may be determined from the image sensor specifications as discussed in Sect. 3. It is assumed that cz , the location of the apertures along the z-axis, is the same for all apertures. In this case, the value of cz may be found using a simple calibration procedure as follows.

In this case, the value of cz may be found using a simple calibration procedure as follows. First, the camera is focused on an object at a known distance z0 from the camera, thereby setting the plane of focus to a given value. ) Then, with two additional objects at different but known distances, z1 and z2 , the shifts between two color channels of each object are found. Assume, for example, that the shifts between the blue and red channels are Δy1 and Δy2 for the first and second object, respectively.

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