Search Results - "16th Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI 2003)"

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  1. 1

    A hole-filling strategy for reconstruction of smooth surfaces in range images by Wang, J., Oliveira, M.M.

    “…Creating models of real scenes is a complex task for which the use of traditional modelling techniques is inappropriate. For this task, laser rangefinders are…”
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    Conference Proceeding
  2. 2

    Automatic shadow segmentation in aerial color images by Polidorio, A.M., Flores, F.C., Imai, N.N., Tommaselli, A.M.G., Franco, C.

    “…A robust and efficient technique to segment shaded areas in aerial color images is presented here. This technique is based on the physical phenomenon of…”
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    Conference Proceeding
  3. 3

    A non-self-intersection Douglas-Peucker algorithm by Wu, S.-T., Marquez, M.R.G.

    “…The classical Douglas-Peucker line-simplification algorithm is recognized as the one that delivers the best perceptual representations of the original lines…”
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    Conference Proceeding
  4. 4

    Image feature extraction for application of biometric identification of iris - a morphological approach by De Mira, J., Mayer, J.

    “…We present a new approach based on morphological operators for application of biometric identification of individuals by segmentation and analysis of the iris…”
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    Conference Proceeding
  5. 5

    Blood vessels segmentation in nonmydriatic images using wavelets and statistical classifiers by Leandro, J.J.G., Soares, J.V.B., Cesar, R.M., Jelinek, H.F.

    “…This work describes a new framework for automatic analysis of optic fundus nonmydriatic images, focusing on the segmentation of the blood vessels by using…”
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    Conference Proceeding
  6. 6

    Moving least squares multiresolution surface approximation by Mederos, B., Velho, L., De Figueiredo, L.H.

    “…We describe a new method for surface reconstruction based on unorganized point clouds without normals. We also present a new algorithm for refining the initial…”
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    Conference Proceeding
  7. 7

    Visual speech recognition: a solution from feature extraction to words classification by Da Silveira, L.G., Facon, J., Borges, D.L.

    “…Audio-visual speech recognition has been an active area of research lately. A bit, and yet unsolved part of this problem is the visual only recognition, or lip…”
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    Conference Proceeding
  8. 8

    Secure authentication watermarking for binary images by Kim, H.Y., Afif, A.

    “…Authentication watermarking is a hidden data inserted into an image, in order to detect any alterations. It seems to be almost impossible to design a really…”
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    Conference Proceeding
  9. 9

    Texture segmentation considering multiband, multiresolution and affine invariant roughness by de Oliveira Nunes, E., Conci, A.

    “…Texture segmentation is a basic task in the process of satellite image analysis. However, texture characterization is not an easy task specially when more than…”
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    Conference Proceeding
  10. 10

    A computer vision framework for eye gaze tracking by Mimica, M.R.M., Morimoto, C.H.

    “…Eye gaze tracking (EGT) allows us to estimate the direction of gaze and the point of regard. This technique has been successfully used as a pointing device in…”
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    Conference Proceeding
  11. 11

    Picking and snapping for 3D input devices by Wu, S.-T., Abrantes, M., Tost, D., Batagelo, H.C.

    “…A picking mechanism (pointing and indicating) with the cursor is essential for any direct-manipulation application. The windowing systems, under whose control…”
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    Conference Proceeding
  12. 12

    Frequency plot and relevance plot to enhance visual data exploration by Rodrigues, J.F., Traina, A.J.M., Traina, C.

    “…We present two techniques aiming at exploring databases through multivariate visualizations. Both techniques intend to deal with the problem caused by the…”
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    Conference Proceeding
  13. 13

    Regularized pel-recursive motion estimation using generalized cross-validation and spatial adaptation by Estrela, V., Rivera, L.A., Beggio, P.C., Lopes, R.T.

    “…The computation of 2D optical flow by means of regularized pel-recursive algorithms raises a host of issues, which include the treatment of outliers, motion…”
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    Conference Proceeding
  14. 14

    Semiautomatic hysteroscopic video summarization by Gaviao, W., Scharcanski, J., Filho, J.S.C.

    “…Hysteroscopic videos have been used to measure the uterus appearance, and are of fundamental importance for gynecologists. Unfortunately, such videos contain…”
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    Conference Proceeding
  15. 15

    Reconstruction using surface dedicated tensorial field by Vieira, M.B., Cord, M., Martins, P.P., Philipp-Foliguet, S., Araujo, A.A.

    “…We propose a new strategy to estimate surface normals from sparse data for reconstruction. Our approach is based on tensorial fields morphologically adapted to…”
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    Conference Proceeding
  16. 16

    Image inpainting and denoising by nonlinear partial differential equations by Barcelos, C.A.Z., Batista, M.A.

    “…A new approach is presented for recovering shapes from noisy and damaged images as well as the filling in of missing information or the removal of objects from…”
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    Conference Proceeding
  17. 17

    Effective image retrieval by shape saliences by Torres, R.S., Picado, E.M., Falcao, A.X., Costa, L.F.

    “…Content-based image retrieval (CBIR) systems have been developed aiming at enabling users to search and retrieve images based on their properties such as…”
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    Conference Proceeding
  18. 18

    Reliable algorithms for ray intersection in computer graphics based on interval arithmetic by Sanjuan-Estrada, J.F., Casado, L.G., Garcia, I.

    “…We study the reliability and performance of interval arithmetic for ray tracing implicit surfaces. We analyze when and how to use interval arithmetic as an…”
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    Conference Proceeding
  19. 19

    Exploration and search-by-similarity in CBIR by Cord, M., Fournier, J., Philipp-Foliguet, S.

    “…We deal with content-based image indexing and category retrieval in general databases. When large categories are searched, systems must explore the database…”
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    Conference Proceeding
  20. 20

    Multiscale image segmentation using wavelets and watersheds by Jung, C.R.

    “…We propose a new multiscale segmentation technique based on wavelet decompositions and watersheds. The wavelet transform is applied to the image, producing…”
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    Conference Proceeding