Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!bionet!agate!shelby!med!hanauma!rick From: rick@hanauma.stanford.edu (Richard Ottolini) Newsgroups: comp.graphics Subject: Re: Scientific visualization, philosophic question Keywords: productivity, Message-ID: <1515@med.Stanford.EDU> Date: 14 Jun 90 22:23:22 GMT References: <6719@amelia.nas.nasa.gov> Sender: news@med.stanford.edu (USENET News System) Organization: Stanford University, Department of Geophysics Lines: 27 In article <6719@amelia.nas.nasa.gov> eugene@wilbur.nas.nasa.gov (Eugene N. Miya) writes: >A meeting was just held here at Ames on the topic of scientific >visualization, where it's going, etc. There was a lot of discussion Scientific visualization has been absolute essentially in the petroleum exploration, both in the analysis of 3-D data and devising algorithms to improve the appearance of the data. Before 1975 seismic prospecting was essentially irrelevant in the discovery of oil. Seismic pictures did not well match what was inside the earth. Since then geophysics has gotten so much more accurate that we are discovering oil "too fast" resulting in a worldwide glut. One of the more important tools have been the surface-slicing volume visualization tools used for past dozen years or so. We could neither understand the complicated 3-D interrelationship of geologic objects nor aspects of seismic wave propagation without these tools. I think the remote sensing / weather satellite people and medical people could make similar claims. Note that these three cases involve OBSERVATIONAL DATA ANALYSIS. Many visualization demos use PSEUDO DATA generated by modeling / simulation programss. Many of this program generate weak or unconvincing results because the science is imperfectly understood or the computers aren't powerful enough yet. Garbage into a visualization program will result in a scientifically unconvincing picture. The goal of scientific visualization is insight. Jazzy display features or poor inputs don't fool scientist for long.