3 results for “projective geometry”

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Research ArticleOpen accessPhrase in the titlePresents Some Aspects and Applications of Projective GeometryRelly Victoria Virgil PetrescuProjective geometry is that area of geometry that treats geometric figures from the point of view of the perspective and the horizon line, figures that are considered invariable by projection. The origins are found in the Pappus works of Alexandria (4th century AD), which, referring to the results of Apollonius in Perga, introduces the concept of an anarchic report. The … …Journal of Mechatronics and Robotics, Vol. 3, Issue 1 · 10 Jul 2019 · 11,799 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsA New Method to Track Line Segment in Sequence of Images Using Only its SlopeS. Ait Kaci Azzou, S. LarabiIn this paper, we present a novel approach to track a line segment in the sequence of images obtained by camera in motion. We use the slope of segment as feature to track. The proposed method is based only on the formalism of the slope of the segment. We use the definition of the projection of points and the relation … …Journal of Computer Science, Vol. 2, Issue 10 · 31 Oct 2006 · 6,668 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordA Main Object-oriented Projective Invariant Image Watermarking ApproachMalik F. AlamairehDigital Watermarking is a technology that enables to protect distributed digital content from unauthorized reuse. Robust watermarks must be able to survive a range of geometrical "attacks," such as image resizing, cropping, translation, rotation, scaling, smoothing, filtering, and simplification. In the current paper we extend existing approaches that are based partially on image invariant features; by introducing new image invariant … …American Journal of Applied Sciences, Vol. 4, Issue 6 · 30 Jun 2007 · 6,737 accessesView PDF Cite