Accession Number : ADA259448


Title :   Object Tracking Through Adaptive Correlation


Descriptive Note : Master's thesis,


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Montera, Dennis A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259448.pdf


Report Date : 17 Dec 1992


Pagination or Media Count : 163


Abstract : This paper discusses the use of a correlation based system to track, an object through a series of images based on templates derived from previous image frames. The ability to track is extended to sequences which include multiple objects of interest within the field of view. This is accomplishes by comparing the height and shape of the template autocorrelation to the peaks in the correlation of the template with the next scene. The result is to identify the region in the next scene which best matches the designated target. In addition to correlation plane postprocessing, an adaptive window is used to determine the template size in order to reduce the effects of correlator walk- off. The image sequences used were taken from a Forward Looking Infrared (FLIR) sensor mounted onboard a DC-3 aircraft. The images contain a T-55 tank and both an M-113 and a TAB-71 armored personnel carrier moving in a columnized formation along a dirt road. The goals of this research were to (1) track targets in the presence of other, and sometimes brighter, targets of similar shape; (2) to maintain small tracking errors; and (3) to reduce the effects of correlator walk-off.... Correlation, Adaptive template, Tracking.


Descriptors :   *IMAGE PROCESSING , *AUTOMATIC TRACKING , AIRCRAFT , TARGET ACQUISITION , SHAPE , AUTOCORRELATION , TRACKING , THESES , TARGETS , SEQUENCES , IMAGES , ERRORS , DIRT , TEMPLATES , ADAPTIVE SYSTEMS , INFRARED DETECTORS , ROADS , FRAMES , ARMORED PERSONNEL CARRIERS , CORRELATORS


Subject Categories : Cybernetics
      Infrared Detection and Detectors
      Target Direction, Range and Position Finding


Distribution Statement : APPROVED FOR PUBLIC RELEASE