Patents Assigned to Oy Wihl. Schauman Ab
  • Method and device for determination of desired middle line of a cylindrical object such as a log
    Patent number: 4737031
    Abstract: A method and a device for determining the desired middle line of a cylindrical object, such as a log. For example, to determine the rotating middle line of an object to be rotary-cut, the invention provides a method in which the diameter of the object and its change is recorded with at least one camera or some other image producing device from several angles, and the images thus produced are stored in a computer memory, after which the desired middle line can be calculated using ordinary logic and the image most suitable for the purpose.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: April 12, 1988
    Assignee: Oy Wihl. Schauman Ab
    Inventors: Olli Mahlberg, Pauli Kuhno