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We propose a novel palm vein recognition scheme based on an adaptive 2D Gabor filter. Three key steps were studied in this scheme: region of interest (ROI) extraction, adaptive Gabor filtering, and template matching. First, in the palm vein image extraction step, the authors used the index finger on both sides of the valley to locate the square area, and then iteratively expanded the area of the square...
Many local features such as Speeded Up Robust Features (SURF) have been widely utilized in image matching due to their notable performances. However, the original SURF algorithm ignores the geometric relationship among SURF features. To overcome this drawback, an improved method combining SURF with Maximally Stable Extremal Regions (MSER) for image matching is proposed in this paper. By combining...
In this paper, a novel method based on orientation entropy is proposed for incomplete fingerprint to extract the Region of Interest (ROI) centered at the reference point, which is applied to achieve fingerprint matching and fingerprint classification instead of the whole fingerprint information. Firstly, according to the properties of competition of the local fingerprint, complementation and redundancy...
Packet losses or errors of compressed video streams during transmission over error-prone channel may cause serious decline in video quality. Error concealment (EC) at decoder side is an effective technology to reduce this degradation. This paper proposes a Directional Temporal Boundary Match Algorithm (DTBMA) for H.264 considering pixel differences in three directions and "guessing" the...
Fingerprint enhancement proceeds by fully utilizing the intrinsic properties of original images to improve the ridges and eliminate the noises. Although Gabor filter is a classical enhancement method, its function may suffer for the low-quality images due to the unreliable orientation and frequency map estimated by conventional approach. In this paper, a new approach has been proposed to estimate...
Fingerprint image segmentation heavily influences the performance of fingerprint verification systems. In recent years, some new methods have been introduced to the image segmenting processing in order to get better disposal results. And most of the proposed algorithms are based on threshold segmentation. In this paper, a novel approach is put forward to segment fingerprint images based on multiple...
A critical and indispensable step of an automatic fingerprint identification system (AFIS) is fingerprint image thinning. many algorithms have been devised and applied trying to obtain one pixel wide and 8 neighbor connected thinning result. In this paper, a method of improving the thinning result through adding eliminate structure templates is proposed. The ZS algorithm is a parallel thinning algorithm...
Motivated by the reported out performance in the fingerprint recognition thesises of PCA by ICA in the linear case where only a single factor is allowed to vary, and the outperformance of PCA by FET when multiple factors are allowed to vary, it is natural to ask whether there a multilinear generalization of ICA and if its performance is better than the other two methods. In this paper, We have presented...
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