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Publications

  1. F. Fignoni; Stefano Messelodi; Carla Maria Modena,
    Rassegna su OCR dattiloscritto: Implicazioni sul progetto Grandi Archivi Multimediali,
    1996
  2. F. Fignoni; Stefano Messelodi; Carla Maria Modena,
    Review of the State of the Art in Optical Character Recognition. Part 2: Hand Printed Documents,
    The automatic recognition of hand written text is an important practical problem with a great variety of potential applications: fax reading, form reading, help to blind people, signature verification, check reading, code recognition, address reading, document database population, and many more. Therefore, the interest of academic groups and commercial associations in hand written recognition is high. In this state of the art review, we address the field of the off-line recognition of unconstrained hand printed characters. We illustrate the results of two comparative tests of ICR systems conducted by NIST: the first deals with the recognition of isolated hand printed characters and the second with the reading of hand printed words from U.S. census forms. Starting from these results and from our experience, we focus our attention on the available commercial products we consider the most reliable. Finally, we present recent trends of the academic research in this area of machine vision, aiming at identifying the most challenging fields for future research,
    1996
  3. Roberto Brunelli; Ornella Mich; Carla Maria Modena,
    A Survey on Automatic Indexing of Audio - Video Data,
    Today considerable amount of audio-video data in multimedia databases requires sophisticated indices for its effective use. Manual indexing is the more effective method to do this, but it is also the slowest and the more expensive. Automated methods have then to be developed. This paper surveys several approaches and algorithms that have been recently proposed to help in automatically structuring audio-visual data, both for annotation and access,
    1996
  4. Brunelli, R.; Falavigna, D.,
    People Identification using Multiple Cues,
    in «IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE»,
    vol. 17,
    n. 10,
    1995
    , pp. 955 -
    966
  5. Roberto Brunelli; Stefano Messelodi,
    Robust Estimation of Correlation with Applications to Computer Vision,
    in «PATTERN RECOGNITION»,
    vol. 28,
    n. 6,
    1995
    , pp. 833 -
    841
  6. Alessandro Leonardi; Stefano Messelodi; Luigi Stringa,
    Book Recognition as an Example of Flat and Structured Objects Classification,
    in «CYBERNETICS AND SYSTEMS»,
    vol. 26,
    n. 6,
    1995
    , pp. 621 -
    645
  7. Roberto Brunelli; Giuseppe Falavigna; T. Poggio; Luigi Stringa,
    Automatic Person Recognition by Using Acoustic and Geometric Features,
    in «MACHINE VISION AND APPLICATIONS»,
    vol. 8,
    n. 5,
    1995
    , pp. 621 -
    645
  8. Roberto Brunelli; Gian Pietro Tecchiolli,
    Stochastic Minimization with Adaptive Memory,
    in «JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS»,
    vol. 57,
    1995
    , pp. 329 -
    343
  9. Roberto Brunelli; Giuseppe Falavigna,
    Person Recognition Using Multiple Cues,
    in «IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE»,
    vol. 17,
    n. 10,
    1995
    , pp. 955 -
    966
  10. Roberto Brunelli,
    On the Generation of Codebooks for Vector Quantization,
    In this paper we investigate the problem of codebook generation for Vector Quantizers which optimize non-Euclidean as well as Euclidean distortions. A new algorithm for minimizing non-Euclidean distortions is introduced together with some speed-up heuristics. The structure of local minima for different distortion measures is analyzed statistically and using techniques for multidimensional scaling. The latter are also used to improve compression rates by codebook ordering,
    1995

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