Show simple item record

dc.contributor.advisorLee, Chin-Hwa
dc.contributor.authorMcDougall, James Chauncy
dc.dateJune 1987
dc.date.accessioned2012-11-27T00:27:51Z
dc.date.available2012-11-27T00:27:51Z
dc.date.issued1987-06
dc.identifier.urihttp://hdl.handle.net/10945/22637
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractImage segmentation is an essential preliminary step in automatic pictorial pattern recognition and scene analysis problems. The objective of segmentation techniques is to partition an image into regions or components. The purpose of this thesis is to analyze a segmentation technique called gradient relaxation. The gradient relaxation method is a viable method in segmenting objects within an image. The gradient relaxation technique is applicable to images having unimodal distributions. This method is applied to noisy infrared images in an attempt to detect and classify the target. The method allows for an easy selection of a threshold value which may be required for other types of image processing on the image. The main issue is to examine the effectiveness of this technique applied to noisy infrared images from uncooled focal plane array sensor having unimodal distributions. The technique was able to extract the target in the image, producing a homogeneous and uniform region for most of the cases studied. A target which was fragmented into several parts because of the noise is not detectable. The technique could be implemented in hardware and applied to the inputs of a classification system for detectable objects in noisy infrared images.
dc.description.urihttp://archive.org/details/applicationofgra00mcdo
dc.format.extent118 p. 28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California: U.S. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject.lcshElectrical and computer engineeringen_US
dc.titleAn application of a gradient relaxation method to noisy infrared images.en_US
dc.typeThesisen_US
dc.contributor.secondreaderTherrien, Charles W.
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentElectrical and Computer Engineering
dc.subject.authordigital image processing
dc.subject.authorpattern recognition
dc.subject.authorsegmentation
dc.description.serviceCaptain, United States Army
etd.thesisdegree.nameM.S. in Electrical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineElectrical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record