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Báo cáo hóa học: " Research Article Dynamic Resolution in GPU-Accelerated Volume Rendering to Autostereoscopic Multiview "

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Dynamic Resolution in GPU-Accelerated Volume Rendering to Autostereoscopic Multiview | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 843753 8 pages doi 10.1155 2009 843753 Research Article Dynamic Resolution in GPU-Accelerated Volume Rendering to Autostereoscopic Multiview Lenticular Displays Daniel Ruijters X-Ray Predevelopment Philips Healthcare Veenpluis 4-6 5680DA Best The Netherlands Correspondence should be addressed to Daniel Ruijters danny.ruijters@philips.com Received 12 December 2007 Revised 29 March 2008 Accepted 11 June 2008 Recommended by Levent Onural The generation of multiview stereoscopic images of large volume rendered data demands an enormous amount of calculations. We propose a method for hardware accelerated volume rendering of medical data sets to multiview lenticular displays offering interactive manipulation throughout. The method is based on buffering GPU-accelerated direct volume rendered visualizations of the individual views from their respective focal spot positions and composing the output signal for the multiview lenticular screen in a second pass. This compositing phase is facilitated by the fact that the view assignment per subpixel is static and therefore can be precomputed. We decoupled the resolution of the individual views from the resolution of the composited signal and adjust the resolution on-the-fly depending on the available processing resources in order to maintain interactive refresh rates. The optimal resolution for the volume rendered views is determined by means of an analysis of the lattice of the output signal for the lenticular screen in the Fourier domain. Copyright 2009 Daniel Ruijters. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction New developments in medical imaging modalities lead to ever increasing sizes in volumetric data. The ability to visualize and manipulate