{"id":59297,"date":"2017-04-20T16:24:44","date_gmt":"2017-04-20T16:24:44","guid":{"rendered":"http:\/\/ahay.org\/blog\/?p=59297"},"modified":"2017-10-09T16:56:15","modified_gmt":"2017-10-09T16:56:15","slug":"oriented-velocity-continuation","status":"publish","type":"post","link":"https:\/\/ahay.org\/blog\/2017\/04\/20\/oriented-velocity-continuation\/","title":{"rendered":"Oriented velocity continuation"},"content":{"rendered":"<p>A new paper is added to the <a href=\"\/wiki\/Reproducible_Documents\">collection of reproducible documents<\/a>: <a href=\"\/RSF\/book\/tccs\/ovc\/paper_html\/\">Diffraction imaging and time-migration velocity analysis using oriented velocity continuation<\/a><\/p>\n<p><img decoding=\"async\" src=\"\/RSF\/book\/tccs\/ovc\/nankai\/Fig\/vc-slice-semb.png\" alt=\"\" title=\"\" \/><\/p>\n<blockquote>\n<p>We perform seismic diffraction imaging and time-migration velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image slope components using migration velocity extrapolation in time-space-slope coordinates. The extrapolation is described by a convection-type partial differential equation and implemented in a highly parallel manner in the Fourier domain. Synthetic and field data experiments show that the proposed algorithms are able to detect accurate time-migration velocities by measuring the flatness of diffraction events in slope gathers for both single and multiple offset data.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>A new paper is added to the collection of reproducible documents: Diffraction imaging and time-migration velocity analysis using oriented velocity continuation We perform seismic diffraction imaging and time-migration velocity analysis by separating diffractions from specular reflections and decomposing them into slope components. We image slope components using migration velocity extrapolation in time-space-slope coordinates. The extrapolation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-59297","post","type-post","status-publish","format-standard","hentry","category-documentation"],"_links":{"self":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/59297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/comments?post=59297"}],"version-history":[{"count":4,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/59297\/revisions"}],"predecessor-version":[{"id":91475,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/59297\/revisions\/91475"}],"wp:attachment":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/media?parent=59297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/categories?post=59297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/tags?post=59297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}