Open AccessRay Tracing In 3‐D Media By Parameterized Shooting
Author(s) -
Sun Yonghe
Publication year - 1993
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1993.tb01474.x
Subject(s) - ray tracing (physics) , parameterized complexity , path (computing) , isotropy , tracing , convergence (economics) , path tracing , computer science , distributed ray tracing , algorithm , geometry , mathematical analysis , mathematics , optics , physics , computer graphics (images) , operating system , rendering (computer graphics) , economics , programming language , economic growth
Summary A new ray‐bending method is presented for tracing rays in a 3‐D isotropic medium. Ray paths are iteratively updated by integrating the ray equation along the approximate ray path. the improved path is expressed in terms of the path integrals along the approximate path. the new updating procedure achieves similar or superior performance with often significantly less operation counts than other bending methods. the method further speeds up convergence by tracing the low‐frequency smooth components of the ray path with coarse grids and the high frequency components with fine grids.