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Fingerprint indexing is a key technique in automatic fingerprint identification systems (AFIS). However, handling fingerprint distortion is still a problem. This paper concentrates on a more accurate fingerprint indexing algorithm that efficiently retrieves the top <i>N</i> possible matching candidates from a huge database. To this end, we design a novel(More)
This paper is concentrated on an accurate and efficient fingerprint indexing algorithm, which efficiently retrieves the top N possibly matched candidates from a huge database. In order to have ability of coping with distorted fingerprints, the proposed algorithm uses novel features, which are insensitive to distortion, formed by the Delau-nay triangulation(More)
Euler number of a binary image is a fundamental topological feature that remains invariant under translation, rotation , scaling, and rubber-sheet transformation of the image. In this work, a run-based method for computing Euler number is formulated and a new hardware implementation is described. Analysis of time complexity and performance measure is(More)
The coverage problem in wireless sensor network deals with the problem of covering a region or parts of it with sensors. In this paper, we address the problem of covering a set of line segments with minimum number of sensors. A line segment &#x2113; is said to be 1-covered if it intersects the sensing region of at least one among the sensors distributed in(More)
This paper represents novel iris recognition technique which uses textural and topological features. Converting circular iris pattern into rectangular pattern makes it rotation invariant. Most of the research in iris recognition is on encoding and recognition of iris pattern but segmenting exact iris pattern is itself very tedious task in this paper we are(More)
A new combinatorial characterization of a gray-tone image called Euler Vector is proposed. The Euler number of a binary image is a well-known topological feature, which remains invariant under translation, rotation, scaling, and rubber-sheet transformation of the image. The Euler vector comprises a 4-tuple, where each element is an integer representing the(More)
Recent field-programmable gate array (FPGA) architectures are heterogeneous, owing to the presence of millions of gates in configurable logic blocks (CLBs), block RAMs, and multiplier blocks (MULs) which can host fairly large designs. While their physical design calls for floorplanning, the traditional algorithms for application-specific integrated circuits(More)