翻訳と辞書 Words near each other ・ Phase resetting in neurons ・ Phase response ・ Phase response curve ・ Phase retrieval ・ Phase rule ・ Phase shaped binary transmission ・ Phase shift module ・ Phase space ・ Phase Space (album) ・ Phase space (disambiguation) ・ Phase Space (story collection) ・ Phase space formulation ・ Phase space method ・ Phase spider ・ Phase splitter ・ Phase Stretch Transform ・ Phase switch ・ Phase synchronization ・ Phase telescope ・ Phase Three ・ Phase transformation crystallography ・ Phase transition ・ Phase transitions and critical phenomena ・ Phase variation ・ Phase velocity ・ Phase VII ・ Phase vocoder ・ Phase-boundary catalysis ・ Phase-change Dual ・ Phase-change incubator Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phase Stretch Transform ： ウィキペディア英語版 Phase Stretch Transform The Phase Stretch Transform or PST is a physics-inspired computational approach to edge detection. PST transforms the image similar to propagation of electromagnetic waves through a diffractive medium with nonlinear dispersive property.〔M. H. Asghari, and B. Jalali, "Edge detection in digital images using dispersive phase stretch," International Journal of Biomedical Imaging, Vol. 2015, Article ID 687819, pp. 1-6 (2015).〕 〔M. H. Asghari, and B. Jalali, "Physics-inspired image edge detection," IEEE Global Signal and Information Processing Symposium (GlobalSIP 2014), paper: WdBD-L.1, Atlanta, December 2014.〕 == Operation principle == In PST edge detection, the original image is first smoothed using a localization kernel and then is passed through a nonlinear frequency-dependent phase operation, called Phase Stretch Transform (PST).〔 PST applies a 2-D phase function to the image in the frequency domain. The amount of phase applied to the image is frequency dependent, i.e. a higher amount of phase is applied to higher frequency features of the image. Since image edges contain higher frequency features, PST emphasizes the edge information in the image by applying more phase to higher frequency features.〔 Image edges can be extracted by thresholding the PST output phase image. After thresholding, the binary image is further processed by morphological operations to find the image edges.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phase Stretch Transform」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.