Get Vision in 3D Environments PDF

By Laurence R. Harris, Michael R. M. Jenkin

ISBN-10: 1107001757

ISBN-13: 9781107001756

Organic and computing device platforms exist inside of a posh and altering 3-dimensional international. We seem to have no trouble knowing this international, yet how can we pass approximately forming a perceptual version of it? focused round 3 key subject matters: intensity processing and stereopsis; movement and navigation in 3D; and traditional scene notion, this quantity explores the newest state-of-the-art examine into the notion of 3 size environments. It positive aspects contributions from most sensible researchers within the box, featuring either organic and computational views. issues lined comprise binocular conception; blur and perceived intensity; stereoscopic movement extensive; and perceiving and remembering the form of visible area. This exact e-book will supply scholars and researchers with an outline of ongoing examine in addition to views on destiny advancements within the box. color models of a variety of the figures can be found at

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Additional info for Vision in 3D Environments

Example text

The four vertical-disparity arrows are copied from (a), and the four horizontal arrows indicate the signs of the equivalent horizontal disparities according to the overrepresented orientations (dashed lines) and Eq. 2). Reproduced from Figure 6 of Matthews et al. (2003). 9c). To be more quantitative, let the fixation point be the origin and assume that the left image is magnified vertically by a factor of k (> 1). Then, the vertical disparity at the stimulus location (x, y) is V (x, y) = (k − 1)y.

Likewise, the two right RFs also differ by a quarter-cycle shift. Several mathematically equivalent variations of model are discussed in the text. Reproduced from Figure 5 of Qian (1997). investigated these issues through mathematical analyses and computer simulations (Qian, 1994; Zhu and Qian, 1996; Qian and Zhu, 1997). The complex-cell model was found to be independent of the Fourier phases of the stimulus for simple stimuli, including the bars used in the physiological experiments of Ohzawa et al.

Negative and positive values indicate near and far disparities, respectively. The disparity map can be improved by combining information across different scales (Chen and Qian, 2004). Modified from Figures 4 and 8 of Qian and Zhu (1997). , 1990). 3 is considered to occur at the stage of simple-cell responses and the 19 20 N. Qian and Y. , 2001). , 1990), later studies indicate that the same approach can be used to describe the responses of monkey binocular cells as well (Livingstone and Tsao, 1999; Cumming and DeAngelis, 2001).

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Vision in 3D Environments by Laurence R. Harris, Michael R. M. Jenkin

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