Fingerprint Ridge Line Reconstruction

Abstract

Abstract:Reconstruction of fingerprint ridge lines is a critical pre-processing step in the identification of poor quality fingerprint images. This paper presents a new fingerprint ridge line reconstruction approach by way of ridge line tracing. In our research, the fingerprint ridge line in a gray scale image is viewed as a track of a ridge segment moving along the ridge. The curve tracing problem is solved by the target tracking technique in computer vision. We first formulate the model of fingerprint ridge line segments and then apply a target tracking method to trace each of the ridge lines. In addition, a feedback technique is adopted to correct the fingerprint directional image in each tracing step in order to improve tracing accuracy. By connecting all the traced ridge line segments, a polyline reconstruction of the ridge line can be obtained. We objectively assess the performance of this approach by using NIST fingerprint images.

Pore-based ridge reconstruction for fingerprint recognition

“…Ridge reconstruction is an important step in different AFIS and consists in locating ridges and representing them through their skeleton. Ridges can be used in different fingerprint analysis, such as matching [2], minutiae extraction [5] and image compression [4], and previous works explored different ideas to reconstruct them: line tracing [12], ridge points detection [3], image binarization and thin-ning [1] and so on. We propose a novel ridge reconstruction approach based on a connect-the-dots strategy.…”

A Novel Approach for Partial Fingerprint Identification to Mitigate MasterPrint Generation

“…A fingerprint is composed of ridges, which are the dark lines and valley, which is the white portion between dark lines [2]. Most of the fingerprint recognition system uses minutiae, a point where three ridges emerge, or a single ridge ends, as the basis for recognising an individual.…”