In this paper, we present an algorithm that can correctly recognize the state of a Chinese chess game by processing a photo of the chessboard. Some major steps of the algorithm include chessboard rectification using Hough transformation and homographic transformation, chess piece detection using circular Hough transformation and chess piece recognition using SIFT (Scale-Invariant Feature Transf...

Geophysical potential field data are usually interpolated onto a regular grid before data enhancement and interpretation. Unfortunately the inherent smoothing in the gridding process can be sufficient to distort or even hide small-amplitude anomalies that are nevertheless of economic importance. Circular features may correspond to anomalies from Kimberlite pipes or meteorite impact craters, and...

A novel method of junction detection in images is investigated. Junctions are modeled using locally applied Hough transforms. Two types of the Hough transform are proposed: (a) 1D transforms to characterize orientations of the junction segments and (b) 2D transforms to additionally estimate lengths of the segments. For any location of the circular window, the best-fit junction can be found and ...

An authentic personal identification infrastructure is required to control the access in order to secure areas or materials. Biometric technology is based on physiological or behavioral characteristics of a human body. Iris recognition system consists of image acquisition, localization, normalization, features extraction and encoding, and classification. Iris images are downloaded from CASIA Ir...

Coins are the vital part of our life. It is used at every point whether it is small cafe or in mall. So it’s our fundamental need to recognize the coins. Image Processing is a field in which working is done on images. By using this, recognition of different denomination of coins is done. For recognition, first canny edge detection is used to detect edges then Hough Transformation is used to det...