Abstract
Viewed from the perspective of the problem to be solved, presence verification appears easily grasped and structurally rather simple. This is the reason why presence verification is often used as an introductory example to image processing. In reality, the concept of presence verification is quite difficult to define precisely: is it simply counting objects or are properties of these objects of importance? Are these properties simple features or is the entire appearance of the object to be considered? Do properties relate to individual objects only or do we have to take relationships between objects into account, for example, when doing assembly verification.
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Actually more than 360° are unrolled to avoid cutting off a bore hole in the image because it is at the starting point of the revolution. With line-scan camera applications it's a common approach to capture slightly more than a full revolution.
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© 2013 Springer-Verlag Berlin Heidelberg
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Demant, C., Garnica, C., Streicher-Abel, B. (2013). Presence Verification. In: Industrial Image Processing. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33905-9_9
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DOI: https://doi.org/10.1007/978-3-642-33905-9_9
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-33904-2
Online ISBN: 978-3-642-33905-9
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