04771469 is referenced by 50 patents and cites 5 patents.

Information on the shape of an object is extracted by generating an image of the object, encoding and ordering the boundary points of the image, selecting points on the outermost portions of the boundary, partitioning the boundary at the selected points into segments of either a first or second kind wherein the segments are distinguished according to a selected smoothness test, and segments of the first kind are smoother than segments of the second kind, partitioning each segment of the second kind into segments of the first or second kind according to the above test, and continuing the partitioning of each of the segments of the second kind into segments of the first or second kind until no further segments of the second kind are identified. An apparatus for performing the above steps is also disclosed.

Title
Means and method of representing an object shape by hierarchical boundary decomposition
Application Number
6/880233
Publication Number
4771469
Application Date
June 30, 1986
Publication Date
September 13, 1988
Inventor
Timothy M Wittenburg
St. Paul
MN, US
Agent
John G Shudy Jr
Wayne B Easton
William T Udseth
Assignee
Honeywell
MN, US
IPC
G06K 9/46
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