Download Automated Multi-Camera Surveillance: Algorithms and Practice by Omar Javed PDF

By Omar Javed

ISBN-10: 0387788808

ISBN-13: 9780387788807

The deployment of surveillance structures has captured the curiosity of either the examine and the economic worlds in recent times. the purpose of this attempt is to extend safety and security in different software domain names comparable to nationwide safeguard, domestic and financial institution safeguard, site visitors tracking and navigation, tourism, and armed forces functions. The video surveillance platforms at present in use proportion one characteristic: A human operator needs to visual display unit them normally, hence restricting the variety of cameras and the realm below surveillance and lengthening fee. A better process could have non-stop energetic caution features, capable of alert defense officers in the course of or maybe sooner than the occurring of against the law.

Existing computerized surveillance platforms will be categorized into different types in accordance to:

  • The atmosphere they're basically designed to observe;
  • The variety of sensors that the automatic surveillance procedure can handle;
  • The mobility of sensor.

The fundamental hindrance of this e-book is surveillance in an out of doors city surroundings, the place it isn't attainable for a unmarried digicam to monitor the full niche. a number of cameras are required to watch such huge environments. This ebook discusses and proposes suggestions for improvement of an automatic multi-camera surveillance method for out of doors environments, whereas choosing the real concerns procedure must do something about in real looking surveillance eventualities. The target of the learn provided during this ebook is to construct structures which could deal successfully with those life like surveillance needs.

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Additional resources for Automated Multi-Camera Surveillance: Algorithms and Practice

Example text

Note that, it is not valid to assume that regions correspond to objects. In case of occlusion multiple objects can belong to the same region. Also similarity in color between a object and background can result in splitting of that object’s silhouette into multiple regions. Therefore, a model of object is required which can tolerate these split and merge cases. Uninteresting objects like trees and flags can also show up as foreground regions for short periods of time. To prevent these objects from affecting the tracking results, we establish a minimum initial observation parameter, Omin .

N}, be the base classifiers selected by the boosting algorithm. In order to set confidence thresholds on the labels given the base classifiers, we use a validation set of labeled images. 6 The Co-Training Framework 37 base is set to be the highest posterior probability achieved by a negative threshold T j,c i example. This means that all examples in the validation set labeled as ci by h j with a base actually belong to the class c . Thus during the online probability higher than T j,c i i base is very phase of the classifier, any example which has a probability higher than T j,c i likely to belong to the class ci .

The removal of regions based on gradient information is also useful in removing spurious foreground regions generated due to the motion of a previously static object. When such a object is moved, the uncovered region shows as foreground since the background model has no information about the appearance of this region. However, as edges do not delineate the boundary of the uncovered area, the region-level process removes the region 24 2 IDENTIFYING REGIONS OF INTEREST IN IMAGE SEQUENCES from the foreground.

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