In a feature-based geometrically robust watermarking system, it is a challenging task to detect geometric-invariant regions (GIRs) which can survive a broad range of image processing operations. Instead of commonly used Harris detector or Mexican hat wavelet method, a more robust corner detector named multi-scale curvature product (MSCP) is adopted to extract salient features in this paper. Bas...

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Classification of digital image content is mainly done by identifying low level imagefeatures such as corners and edges. The literature shows variety algorithms for the identification ofcorner non-corner pixels, important objects’ segmentation. However,all these produce different results same data therefore, suitable limitedapplications. This paper proposes a hybrid solution combining complemen...

Technological Research Council (Tubitak). The magazine’s editor, Cigdem Atakuman, was also sacked for ‘exceeding her authority’ by commissioning the article, which the council said was “not planned or scientifically evaluated beforehand”. The government has denied playing any role in the article’s withdrawal and has joined in the condemnation, despite its wellknown opposition to evolutionary th...

submersible's spotlights as a slow-motion blizzard of mucus. Indeed, the biologists on this trip say they probably identified a dozen new species. (They need to double-check with their Russian colleagues, who have been at this business a lot longer and who have a literature that's both rich and hard to access). They're on the frontier of marine biology. The US Coast Guard provided the icebreake...

India has an estimated 12 million visually impaired people and is home to the world’s largest number in any country. Smart walking stick devices use various technologies including machine vision different sensors for improving safe movement of persons. In vision, accurately recognizing object that near them still a challenging task. This paper provides system enable navigation guidance by imple...

We propose a computational step, called surround suppression, to improve detection of object contours and region boundaries in natural scenes. This step is inspired by the mechanism of non-classical receptive field inhibition that is exhibited by most orientation selective neurons in the primary visual cortex and that influences the perception of groups of edges or lines. We illustrate the prin...

We present a new checkerboard detection algorithm which is able to detect checkerboards at extreme poses, or checkerboards which are highly distorted due to lens distortion even on low-resolution images. On the detected pattern we apply a surface fitting based subpixel refinement specifically tailored for checkerboard X-junctions. Finally, we investigate how the accuracy of a checkerboard detec...