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Phase Stretch Transform
Phase stretch transform (PST) is a computational approach to signal and image processing. One of its utilities is for feature detection and classification.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). PST is related to time stretch dispersive Fourier transform. It transforms the image by emulating propagation through a diffractive medium with engineered 3D dispersive property (refractive index). The operation relies on symmetry of the dispersion profile and can be understood in terms of dispersive eigenfunctions or stretch modes.B. Jalali and A. Mahjoubfar, "Tailoring Wideband Signals With a Photonic Hardware Accelerator", Proceedings of the IEEE, Vol. 103, No. 7, pp. 1071–1086 (2015). PST performs similar functionality as phase-contrast microscopy, but on digital images. PST can be applied to digital images and temporal (time se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PST Edge Detection On An Astronomical Image
PST may refer to: Time zones * Pacific Standard Time, UTC−08:00 (western North America) * Pakistan Standard Time (usually PKT), UTC+05:00 * Philippine Standard Time (also PHST or PHT), UTC+08:00 Science and technology * Lead scandium tantalate, a ceramic material * Partial stroke testing of valves * Penoscrotal transposition, in medicine * Personal Storage Table, a file format used in Microsoft applications * Planar separator theorem, in graph theory * Pocket set theory, in mathematics * Post-stall technology, aircraft control system * Program structure tree, in computer programming *PstLM, short-term Flicker (light), light flicker metric * Puccinia striiformis f.sp. tritici, ''Puccinia striiformis'' f.sp. ''tritici'', or Wheat yellow rust Economics and taxes * The Prebisch–Singer thesis or Prebisch–Singer hypothesis * Sales taxes in Canada#Provincial sales taxes, Provincial Sales Tax, a sales tax in some Canadian provinces Places * Trail of Remembrance and Comrad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
