Patents by Inventor Henricus A. Marquering

Henricus A. Marquering has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7570811
    Abstract: A method is described for segmenting an image of pixels into a number of fields. A graph is constructed for representing the image. First, separating elements are constructed that are oblong areas of adjacent pixels having a background property indicative of a background of the image. Then vertices of the graph are defined based on intersections of separating elements that are substantially oriented in different separation directions, in particular horizontal and vertical direction, and edges of the graph are defined between the vertices corresponding to the separating elements. Finally, the edges of the graph are interpreted as lines that separate the fields.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: August 4, 2009
    Assignee: OCE Technologies B.V.
    Inventors: Henricus A. Marquering, Alena V. Belitskaya
  • Patent number: 7529407
    Abstract: A method and device are provided for segmenting an image of pixels into a number of fields. First the method finds field separators using the background of the image, in particular white areas on a newspaper page. Based on the areas in the image, a graph is constructed that has edges corresponding to the white areas and vertices where vertical and horizontal white areas intersect. The segmenting starts with assigning weights to the edges, in particular a weight indicating the Euclidean distance between the vertices. Then a list of shortest cycles is constructed via the edges and vertices in the graph. The fields are defined by the vertices and edges of the shortest cycles of the list.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 5, 2009
    Assignee: OCE-Technologies B.V.
    Inventors: Henricus A. Marquering, Dennis Peeten
  • Publication number: 20040140992
    Abstract: A method is described for segmenting an image of pixels into a number of fields. A graph is constructed for representing the image. First, separating elements are constructed that are oblong areas of adjacent pixels having a background property indicative of a background of the image. Then vertices of the graph are defined based on intersections of separating elements that are substantially oriented in different separation directions, in particular horizontal and vertical direction, and edges of the graph are defined between the vertices corresponding to the separating elements. Finally, the edges of the graph are interpreted as lines that separate the fields.
    Type: Application
    Filed: November 20, 2003
    Publication date: July 22, 2004
    Inventors: Henricus A. Marquering, Alena V. Belitskaya
  • Publication number: 20040141643
    Abstract: A method and device are provided for segmenting an image of pixels into a number of fields. First the method finds field separators using the background of the image, in particular white areas on a newspaper page. Based on the areas in the image, a graph is constructed that has edges corresponding to the white areas and vertices where vertical and horizontal white areas intersect. The segmenting starts with assigning weights to the edges, in particular a weight indicating the Euclidean distance between the vertices. Then a list of shortest cycles is constructed via the edges and vertices in the graph. The fields are defined by the vertices and edges of the shortest cycles of the list.
    Type: Application
    Filed: November 21, 2003
    Publication date: July 22, 2004
    Inventors: Henricus A. Marquering, Dennis Peeten