Learn More
Automatic license plate recognition (ALPR) is the extraction of vehicle license plate information from an image or a sequence of images. The extracted information can be used with or without a database in many applications, such as electronic payment systems (toll payment, parking fee payment), and freeway and arterial monitoring systems for traffic(More)
The appearance of a face image is severely affected by illumination conditions that hinder the automatic face recognition process. To recognize faces under varying illuminations, we propose a wavelet-based normalization method so as to normalize illuminations. This method enhances the contrast as well as the edges of face images simultaneously, in the(More)
The pose variation involved in facial images significantly degrades the performance of face recognition systems. In this paper, a component-wise pose normalization method for facilitating pose-invariant face recognition is proposed. The main idea is to normalize a non-frontal facial image to a virtual frontal image component by component. In this method, we(More)
Variable illumination conditions, especially the side lighting effects in face images, form a main obstacle in face recognition systems. To deal with this problem, this paper presents a novel adaptive region-based image preprocessing scheme that enhances face images and facilitates the illumination invariant face recognition task. The proposed method first(More)
Gabor wavelets are widely employed in face representation to decompose face images into their spatial-frequency domains. The Gabor wavelet transform, however, introduces very high dimensional data. To reduce this dimensionality, uniform sampling of Gabor features has traditionally been used. Since uniform sampling equally treats all the features, it can(More)
Human's safety in construction areas is vital. A hard hat is required to enter a construction area. Stopping a person who is not wearing a hard hat entering a construction area is very important. Video-based surveillance to detect hard hat is a new solution to this safety problem. This paper brings different video processing techniques together to construct(More)
Illumination changes in face images form a main obstacle in face recognition systems. To deal with this problem, this study presents a novel adaptive region-based image preprocessing scheme that enhances face images and facilitates the face recognition task. This method enhances both the edges and the contrast in face images regionally so as to alleviate(More)
Varying illumination conditions affect the appearance of face images significantly. Thus, it severely degrades image-based face recognition performance. This paper presents a novel face image pre-processing approach that deals with the illumination problem to make face recognition robust to illumination variations. In the proposed method, logarithm(More)
As distributed heterogeneous database multiple different physical locations, so will inevitably lead to a heterogeneous web server access to the database server response time difference, so in a distributed heterogeneous database access must be considered the database response time. This design technique based on hibernate database middleware, the(More)