In this paper we demonstrate the use of second derivative of Gaussian filters (SDG) together
with pyramid technique for fingerprint image enhancement. The quality of enhanced image …

In this paper, we propose a technique for enhancing the quality of fingerprint images.
Directional wavelet transform and second derivative of a Gaussian filter are applied. The …

Palmprint shows great potential in biometric-based security due to its advantages of great
stability, easy collection, and high accuracy. However, with insufficient training samples, how …

Several researchers have used image enhancement methods to reduce detection errors
and increase verification accuracy in palmprint identification. Divergent opinions exist …

In recent years, palmprint recognition has made great progress and many methods have
been put forward. The extraction of robust orientation features and finding efficient matching …

Biometrics, similar to other pattern recognition systems, are essentially based on data
collection and learning techniques. In this chapter, we will first give an overview on the …

This paper reports on a feasibility study of contactless hand biometrics using an RGB-Depth
(RGB-D) camera such as the Kinect v2 prototype. The RGB, depth, and near-infrared (near …

In this paper biometric methods for user-centric, contactless and unrestricted access control
dedicated for mobile devices are proposed. The major contribution is a novel low …

In this paper, we present a novel bidirectional aggregated features representation from
convolutional neural networks (CNNs) with score-level fusion for palmprint recognition. Our …

Orientation-based coding approaches have recently been widely employed for face and
palmprint recognition where generally, one starts with a set of Gabor filters to extract …