B. Vijayakumar

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To recognize three-dimensional objects bounded by smooth curved surfaces from monocular image contours, viewpoint-dependent image features must be related to object geometry. Contour bitangents and innections along with associated parallel tangents points are the projection of surface points that lie on the occluding contour for a ve-parameter family of(More)
The silhouette of a smooth 3D object observed by a moving camera changes over time. Past work has shown how surface geometry can be recovered using the deformation of the silhouette when the camera motion is known. This paper addresses the problem of estimating both the full Euclidean surface structure and the camera motion from a dense set of silhouettes(More)
CURVED 3D OBJECTS Tanuja Joshi and Jean Ponce B. Vijayakumar and David J. Kriegman Beckman Institute Center for Systems Science University of Illinois, Urbana, IL 61801 Yale University, New Haven, CT 06520 Abstract: We represent arbitrary smooth curved 3D shapes by a discrete set of HOT curves where a surface admits High Order Tangents. These curves(More)
1 I n t r o d u c t i o n While in the "classical approach" to object recognition from images, an intermediate 2 89 or 3D representation is constructed and matched to object models, the approach presented in this paper bypasses this intermediate representation and instead directly matches point image features to three dimensional vertices, edges or(More)
In this paper we investigate how to perform face recognition on the hardest experiment (Exp4) in Face Recognition Grand Challenge(FRGC) phase-II data which deals with subjects captured under uncontrolled conditions such as harsh overhead illumination, some pose variations and facial expressions in both indoor and outdoor environments. Other variations(More)
A good watermarking technique embeds information into a carrier image with virtually imperceptible modification of the image. The present paper found a novel fact that by inserting the watermark using Least Significant Bit (LSB), the grey value of the image pixel either remains same or increases or decreases to one. The present paper is focused on this(More)
This paper deals with Web Structure Mining, using the Breadth First Search strategy. While browsing the web, the user has to go through many pages of the Internet, filter data and download required information. This task of searching and downloading is time consuming. Sometimes the search queries call for specific option, say, limiting search to few links.(More)
This paper deals with Web Content Mining. While browsing the web, the user has to go through many pages of the Internet, filter the data and download related documents and files. This task of searching and downloading is time consuming. Sometimes the search queries call for specific option, say, limiting search to few links. To reduce the time spent by(More)
The present work deals with designing and creating a Academic Search Web Application that provides the user with a range of options. It also discusses the ways in which the files are accessed from the MySQL database. The implementation has been carried out in PHP and MySQL and the test scenario has been presented. The present work will assist in organized(More)