One example of color constancy is color transparency: when a surface is seen both in plain view and through a transparent overlay, the visual system still identifies it as a single surface. Previous studies suggest that color changes across a region of an image that can be described as translations and/or convergences in a linear trichromatic color space lead to the perception of transparency, ...

The aim was to compare the detection frequency of periodontopathogens by using the Pado Test 4.5 and checkerboard DNA-DNA hybridization technique in chronic periodontitis patients.Thirty patients with chronic periodontitis were tested cross-sectionally with DNA/RNA oligogenomic probe method (IAI Pado Test 4.5) and DNA/DNA whole genomic probe (checkerboard) method. Samples were taken by two pape...

This paper proposes a fisheye camera calibration method based on multiple chessboard detection. To address the complexity and multiple-frame requirement of traditional methods, this detects corner points using libcbdetect algorithm obtains pixel coordinates. Then, it uses depth-first search to obtain world coordinates corners calculates homography matrix world-pixel pair through RANSAC algorith...

We consider transversely modulated fronts in a directionally quenched Cahn–Hilliard equation, posed on two-dimensional infinite channel, with both parameter and source-term type heterogeneities. Such quenching heterogeneities travel through the domain, excite instabilities, can select pattern formed their wake. particular study striped patterns which are oblique to direction as well checkerboar...

Future 6G wireless networks will once again have to raise the performance in most technology domains by a factor of 10–100. Depending on application, future requirements include peak data rates 1 Tb/s per user, 0.1 ms latency, less than one out million outage, centimeter accurate positioning, near zero energy consumption at device, and operation different environments including factories, vehic...

The geometric dual of a cellularly embedded graph is fundamental concept in theory and also appears many other branches mathematics. partial an essential generalization which can be obtained by forming the with respect to only subset edges graph. Twisted duality further from combining Petrials duals. Ribbon graphs are new equivalent form old graphs. In this paper, we first characterize regular ...