Combining Anisotropic Diffusion and Alternating Sequential Filtering for Satellite Image Enhancement and Smoothing

Karantzalos, KG

dc.contributor.author	Karantzalos, KG	en
dc.date.accessioned	2014-03-01T02:49:44Z
dc.date.available	2014-03-01T02:49:44Z
dc.date.issued	2004	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34711
dc.subject	Alternating Sequential Filtering	en
dc.subject	Anisotropic Diffusion	en
dc.subject	Image Processing	en
dc.subject	Remote Sensing	en
dc.subject.other	Alternating sequential filtering	en
dc.subject.other	Anisotropic diffusion	en
dc.subject.other	Algorithms	en
dc.subject.other	Anisotropy	en
dc.subject.other	Computer vision	en
dc.subject.other	Feature extraction	en
dc.subject.other	Information retrieval	en
dc.subject.other	Optimization	en
dc.subject.other	Photogrammetry	en
dc.subject.other	Remote sensing	en
dc.subject.other	Image analysis	en
dc.title	Combining Anisotropic Diffusion and Alternating Sequential Filtering for Satellite Image Enhancement and Smoothing	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.511239	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.511239	en
heal.publicationDate	2004	en
heal.abstract	Automatic information extraction requires a processing system to encapsulate the content of the image. This is a non-trivial task, because of the complexity of the information stored in images. In this paper satellite image enhancement and smoothing towards automatic feature extraction is accomplished through an effective serial application of anisotropic diffusion processing and alternating sequential filtering. Nonlinear diffusion processes can be found in many recent methods for image processing and computer vision. A robust anisotropic diffusion filtering is used with Tukey's biweight robust error norm for ""edge-stopping"" function, which preserves sharper boundaries than previous formulations and improves the automatic stopping of the diffusion. A well-known class of morphological filters, alternating sequential filtering is applied afterwards for a more extended enhancement and smoothing. The effective processing scheme is demonstrated with examples; Results appear promising.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.511239	en
dc.identifier.volume	5238	en
dc.identifier.spage	461	en
dc.identifier.epage	468	en