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A SYSTEM FOR THE CREATION AND LOW BANDWIDTH DELIVERY OF FACIAL COMPOSITE SKETCHES

IP.com Disclosure Number: IPCOM000007995D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2002-May-10
Document File: 1 page(s) / 61K

Publishing Venue

Motorola

Related People

Tom Gavin: AUTHOR [+3]

Abstract

There is a need in law enforcement for the rapid creation and delivery of facial composite sketches, or mugshots, from the station house to the field and vice versa. Unfortunately, the traditional methods for creating mugshots are not conducive to their efficient transfer via RF. These conventional meth- ods may involve the use of an artist's rendition with subsequent scanning and compression; or the use of component-based mugshot assembly techniques. The former method results in large amounts of data to be transmitted, while the latter requires large libraries of facial components and tends to be time- consuming.

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MOTOROLA Technical Developments

A SYSTEM FOR THE CREATION AND LOW BANDWIDTH DELIVERY OF FACIAL COMPOSITE SKETCHES

by Tom Gavin, Tom Gaynor and Mike Landis

  There is a need in law enforcement for the rapid creation and delivery of facial composite sketches, or mugshots, from the station house to the field and vice versa. Unfortunately, the traditional methods for creating mugshots are not conducive to their efficient transfer via RF. These conventional meth- ods may involve the use of an artist's rendition with subsequent scanning and compression; or the use of component-based mugshot assembly techniques. The former method results in large amounts of data to be transmitted, while the latter requires large libraries of facial components and tends to be time- consuming.

  The proposed invention is based on a b-spline representation of the human face with control points at characteristic locations (such as the set of forty characteristic points defined by M. Vezjak, et al.'). The system would present the user with an initial set of facial outlines to use as starting points. The initial set would include a number of prototypical male and female facial outlines. If additional library outlines are available, the user could, with help from the system, select one or more of the best available outlines to form a base outline for modifi-

cation The system would then present an outline formed from the average of the b-spline parameters (control point locations and angles) in th...