School of Computer and Information Sciences

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  • Item
    Linear octrees by volume intersection
    ( 1989-01-01) Pujari, Lavakusha Arun K. ; Reddy, P. G.
    The paper describes a new algorithm for constructing a 3D approximation of an object from three orthogonal 2D silhouettes. The 2D views are represented as binary arrays and 3D approximation is obtained as a linear octree. The algorithm makes use of volume intersection of three cylinders obtained by sweeping three views in respective directions. The algorithm takes less time than an existing algorithm which makes use of three quadtrees and an octree for 2D and 3D image representation, respectively. Unlike the previous algorithm, the present algorithm does not require any preprocessing stage or condensation. It is Shown that the proposed algorithm is of o(T), where T is the total number of nodes in the resulting octree. © 1989.
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    Fuzzy rule-based decision support system environment
    (University of Hyderabad, 1991-03-12) Narasimha, Bolloju ; Naveen Prakash ; Reddy, A. S.
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    Optimal pricing of successive generations of product advances
    ( 1993-01-01) Padmanabhan, V. ; Bass, Frank M.
    We obtain the optimal pricing policy of a monopolist marketing successive generations of product advances. We characterize the impact of foresight regarding entry of the second generation product and the technological substitution and market expansion created by the introduction of the second generation product on the optimalpricing policy of the monopolist. We also obtain the optimal pricing policies of the producers in situations where the successive generations of product advances are marketed by independent producers. By contrasting these policies with those of the monopolist marketing successive generations of product advances, we provide insight on the differential impact of foresight, technological substitution and market expansion on the optimal pricing policies of the producers. © 1993.
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    Understanding paper documents
    ( 1993-06-01) Agarwal, Arun
    We describe the organization and several components of an automated document processing system that begins with digitized images of documents and produces representations at higher levels. Such representations inlcude: the visual sketch (connected components extracted from the background), physical layout (spatial extents of blocks corresponding to text, graphics), logical layout (grouping of strings into words and phrases), and block primitives (e.g., recognised characters and words in text blocks, recognition of hand-drawn line drawings i.e. schematic electronic circuits). We describe algorithms for deriving several of the representations and describe the interaction of different modules. The methods are illustrated with examples. © 1993 the Indian Academy of Sciences.
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    Database access in Telugu
    (University of Hyderabad, 1993-07-16) Ravi Shankar, C. ; Sivasankara Reddy, A.
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    Intelligent approach to design tasks
    (University of Hyderabad, 1993-08-22) Naga Prasad, P. ; Sivasankara Reddy, A.
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    Object oriented real time asynchronous production systems
    (University of Hyderabad, 1993-09-12) Siva Perraju, Tolety ; Prasad, B. E.
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    Competitive location and entry deterrence in Hotelling's duopoly model
    ( 1994-01-01) Bhadury, J. ; Chandrasekaran, R. ; Padmanabhan, V.
    This paper analyzes the problem of two firms competing in a common linear market with demand distributed continuously over the market. The firms wish to maximize their respective profits by appropriate choice of number of facilities and their locations. Equilibrium location strategies are derived for uniform and symmetric triangular demand distributions. It is shown that pioneering advantage may help a firm overcome its cost disadvantage with respect to a competitor. © 1995.
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    Cooperative problem solving \b A Knowledge partitioning approach
    (University of Hyderabad, 1994-12-13) Nalini Kumari, Omtri ; Prasad, B. E. ; Uma, G.
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    Enhancing the applied epistemics of an expert system for management applications using neural networks
    (University of Hyderabad, 1994-12-15) Brij Bhushan Sahni ; Reddy, P. G. ; Arun Agarwal
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    Usage Heterogeneity and Extended Warranties
    ( 1995-01-01) Padmanabhan, V.
    The role of product warranty in segmentation of consumer durable product markets is highlighted. I demonstrate that consumer moral hazard and heterogeneity in product usage create variation in the valuation of product warranties by the different segments in the market. In this context, the firm, by offering a self‐selecting menu of base warranty and extended warranties, satisfies the warranty demands of the various segments of the population. The consumer choice behavior prediction of the theory with regard to extended warranty is empirically validated with data from a survey of new car buyers. Copyright © 1995, Wiley Blackwell. All rights reserved
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    A correspondence based approach to segmentation of cursive words
    ( 1995-01-01) Negi, A. ; Swaroop, K. S. ; Agarwal, A.
    A novel contour-based approach to off-line segmentation of cursive words is proposed. The approach avoids expensive processing such as slant correction, thinning, filtering, and regional pixel labeling. Correspondences between the maximum and minimum excursions of the handwriting image are established and categorised. Valid established correspondences additionally provide three types of useful singular features about the segmented letter shapes. These singular features of the handwriting are first defined and isolated as: Loops, ascenders and descenders. A consistent analysis of established valid correspondences gives the segmentation. Correspondences also provide stroke width estimates, character width, and slant estimates that are useful to a recognition system. Results of the proposed approach on images, with variations in slant and types of ligatures are also presented.
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    Detection of courtesy amount block on bank checks
    ( 1995-01-01) Agarwal, A. ; Granowetter, L. ; Hussein, K. ; Gupta, A. ; Wang, P. S.P.
    This paper discusses a technique for locating the courtesy amount block on bank checks. In the analysis and recognition process, connected components in the image are identified first. Then, strings are constructed on the basis of proximity and horizontal alignment of characters. Next, a set of rules and heuristics are applied to these strings to choose the correct one. The chosen string is only accepted if it passes a verification test, which includes an attempt to recognize the currency sign. A deterministic finite automaton system is then used for segmenting the handprinted courtesy amount. Finally, the separated components are passed on to a neural network based recognition system.
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    A correspondence based approach to segmentation of cursive words
    ( 1995-01-01) Negi, A. ; Swaroop, K. S. ; Agarwal, A.
    A novel contour-based approach to off-line segmentation of cursive words is proposed. The approach avoids expensive processing such as slant correction, thinning, filtering, and regional pixel labeling. Correspondences between the maximum and minimum excursions of the handwriting image are established and categorised. Valid established correspondences additionally provide three types of useful singular features about the segmented letter shapes. These singular features of the handwriting are first defined and isolated as: Loops, ascenders and descenders. A consistent analysis of established valid correspondences gives the segmentation. Correspondences also provide stroke width estimates, character width, and slant estimates that are useful to a recognition system. Results of the proposed approach on images, with variations in slant and types of ligatures are also presented.
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    Terms \b tree-structured reason maintenance system
    (University of Hyderabad, 1995-04-26) Shinymol Antony Kondayil ; Arun K. Pujari
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    Investigation on application of AI techniques on GIS
    (University of Hyderabad, 1995-11-18) Ravindra Kumar, C. ; Arun K. Pujari
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    Identification of lanes and bands in DNA autoradiogram images
    ( 1995-12-01) Agarwal, A. ; Srinivas Manohar, C. ; Pujari, Arun K.
    The present work is concerned with the application of image processing to an off-line DNA autoradiogram images. The varying morphology of lanes, nonuniformity in band shapes, intensities and spacing, the spatially varying background of the image and gel-preparative and digitization variations in the autoradiogram images make conventional techniques of image processing unsuitable. The proposed technique is adaptive taking varying background and unpredictable nature of the bands into account. We have successfully accomplished lane detection, lane straightening, adaptive enhancement of lane images and band detection.
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    Role of mediator in inter-agent induction
    ( 1996-01-01) Patra, M. R. ; Mohanty, H.
    In a multi-agent society when agents operate on common platforms, in addition to routine information exchanges some agents try to induce other agents to their own and social benefits. This induction can be achieved through direct interactions among participating agents. However, in situations when induction is not possible through direct interaction, an intended induction may still be achieved through a Mediator agent. In this paper, we investigate the role of a mediator agent in an induction process and formalize the concepts by proposing an agent framework. We utilize an Object-Oriented approach for implementation of the proposed framework. © 1996 Taylor & Francis Group, LLC.
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    Parallel preprocessing algorithms for document image analysis
    ( 1996-01-01) Rao, P. S. ; Srinivas, C. ; Chand, B. Hem ; Agarwal, Arun
    This paper presents the parallel implementation of sequential algorithms for skew estimation, connected components generation and smearing on a hypercube architecture. These algorithms have been tested on PARAM CAMPUS (a 16-node parallel machine) and the test results have been provided. © 1996 Taylor & Francis Group, LLC.
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    Detection of courtesy amount block on bank checks
    ( 1996-01-01) Agarwal, Arun ; Hussein, Karim ; Gupta, Amar ; Wang, Patrick S.P.
    A multi-staged technique for locating the courtesy amount block on bank checks is presented. In the case of a check processing system, many of the proposed methods are not acceptable, due to the the presence of many fonts and text sizes, as well as the short length of many text strings. Particular methods chosen to implement a courtesy amount block locator (CABL) are described. First, the connected components in the image are identified. Next, strings are constructed on the basis of proximity and horizontal alignment of characters. Finally, a set of rules and heuristics are applied to these strings to choose the correct one. The chosen string is only reported if it passes a verification test, which includes an attempt to recognize the currency sign. © 1996 SPIE and IS & T.