A New Evolution of ‘X’ from Motion M Idesawa, X Cheng |
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UEC Museum of Communications, The University of Electro-Communications, Tokyo, Japan
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| Human vision has ability to perceive 3-D from motion, which has been studied widely as “’X’ from motion”. As for the ‘X’, ‘depth’, ‘shape’, ‘structure’ and ‘surface’ has been reported; recently, as a new category ‘volume’ was added [Cheng, 2010, Optical Review 17-5 439-442; Cheng, 2011, Optical Review 18-4 297-300]. We performed the observation experiment of moving random dot pattern stuck on different types of surface; then it was confirmed that ‘depth’ ‘shape’, ‘structure’, ‘surface’ and ‘volume’ were perceived successfully. We examined not only the continuous real motion but also the velocity field produced by the cyclic display of multi-stroke apparent motion sequence and suitable ISI [http://www.lifesci.sussex.ac.uk/home/George_Mather/TwoStrokeFlash.htm]; then, we found that ‘depth’, ‘structure’, ‘surface’, and ‘volume’ can be perceived almost the same as in the real motion. The authors inferred that the velocity field might be produced by the anomalous motion in still figure [http://www.ritsumei.ac.jp/~akitaoka; Idesawa, 2010, Optical Review 17-6 557-561] and 3-D perception could be obtained. Some potential figures were found in Kitaoka’s collection. We examined the picture of suitably distributed anomalous motion elements with different properties in direction and strength; although the perception was faint, the potential pictures excepting ‘volume’ were generated. |
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