We exploit the Accumulator Array of the Hough Transform by finding collections of (2 or more) peaks through which a given sinusoid will pass. Such sinusoids identify points in the original image where lines intersect. Peak collection (or line aggregation) is performed by making a second pass through the edge map, but instead of laying points down in the accumulator array (as with the original Hough Transform), we compute the line integral over each sinusoid that corresponds to the current edge point. If a sinusoid passes through /spl ges/2 peaks, we deposit that sum/integral into a new accumulator array - an array that has a direct one-to-one correspondence with the original image. Thus, "Houghing the Hough" identifies points that correspond to corners, junctions or line intersections in image space. During initial peak collection, we include in the line integral only the most (locally) significant peaks while sifting out other (comparatively) weaker peaks from the current as well as subsequent peak collections. This "contextual peak sifting" greatly reduces computation, the effect of noise and the occurrence of false positives. Virtual line intersections (vanishing points, occluded corners, etc.) are detected as peaks without proximate edge support. Results in real-world images show the technique performs well in identifying corners, junctions and intersecting lines in a variety of scenes containing manmade objects such as buildings, documents, etc.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Houghing the Hough: peak collection for detection of corners, junctions and line intersections


    Beteiligte:
    Barrett, W.A. (Autor:in) / Petersen, K.D. (Autor:in)


    Erscheinungsdatum :

    01.01.2001


    Format / Umfang :

    1045493 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Houghing the Hough: Peak Collection for Detection of Corners, Junctions and Line Intersections

    Barrett, W. A. / Petersen, K. D. / IEEE | British Library Conference Proceedings | 2001


    Contour Tracking by Enhancing Corners and Junctions

    Demi, M. | British Library Online Contents | 1996


    Lay-out of cross roads, junctions and corners

    Engineering Index Backfile | 1929


    Lay-out of cross roads, junctions and corners

    Engineering Index Backfile | 1929


    Affine Morphological Multiscale Analysis of Corners and Multiple Junctions

    Alvarez, L. / Morales, F. | British Library Online Contents | 1997