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Boca Raton: Chapman-Hall/ Taylor and Francis Group, 2011.
Similar publications
Li Y., Sawada T., Shi Y. et al. In bk.: Shape perception in Human & Computer Vision. NY: Springer, 2013. P. 21-40.
Added: Sep 24, 2014
Minkov V., Sawada T. Psychology. PSY. Высшая школа экономики, 2018. No. WP BRP 91/PSY/2018.
Theoretical understanding of a visual stimulus in a psychophysical experiment is critical for controlling the experiment and for interpreting its results. This fact encourages vision scientists to use “simple” visual stimuli. A triangle in a 3D scene is one of the simplest stimuli for studying 3D perception. In this study, we analyzed geometrical properties of a relation between the triangle and its retinal image using a computer algorithm. Based on the analysis, we discuss validity of results of past studies that used triangles as their visual stimuli.
Added: Sep 3, 2018
Алюшин А. Л. Философские науки. 2010. № 11. С. 104-115.
Added: Oct 12, 2012
Мищенко Е. В., Negishi I., Gorbunova E. S. et al. PsyArXiv. PsyArXiv. The Center for Open Science, 2019
Bishop Berkeley suggested that the distance of an object can be estimated if the object’s size is familiar to the observer. The distance can be computed by comparing the size of the retinal image of the object to the memorized size of the object. It has been suggested that humans can perceive the distance of the object by using such “familiarity” information. However, prior experiments looking for an effect of familiarity had not been designed to minimize, or eliminate potential influences of: (i) higher cognitive factors on the observers' responses, or (ii) the influences of low-level image features in the visual stimuli. We tested the familiarity effect in two psychophysical experiments that were conducted both in Russia and in Japan. Forty Russian students and forty Japanese students participated in these experiments. The visual stimuli used were images of three coins in Russia and in Japan. The participants' depth perception was measured with a multiple-choice task testing the perceived depth-order of the coins. Our expectation was that any effect of “familiarity” on depth perception would only be observed with the coins of the participant's country. We expected a substantial effect of familiarity based on our meta-analysis of the "familiarity" effects observed in prior experiments. But, our results in both experiments showed that the familiarity effect on depth perception was virtually zero. Our experiments clearly show that familiarity, studied for the first time without any obvious confounds, does not serve as a cue for depth.
Added: Nov 27, 2019
Koshmanova E., Sawada T. Psychology. PSY. Высшая школа экономики, 2018. No. WP BRP 90/PSY/2018.
This is an empirical study.
The perception of a pair of contours in a retinal image cannot be understood simply by adding up the perceptions of the individual contours, especially when they form a perpendicular junction, or are parallel to one another. It is the relationship among the contours that determines what is perceived. Note that it is hard to actually compare the perception of such configurations quantitatively. We managed to do this by testing the perception of such configurations in three psychophysical experiments in which the perception was characterized by measuring the orientation threshold of a single contour. This threshold was estimated by using a modified Method of Constant Stimuli based on the assumption that contours forming a configuration are perceived individually, and that they are integrated linearly. This assumption made the quantitative comparison of the perceived configurations possible. We found that changes of the estimated threshold depended on the type of the configuration, specifically thresholds estimated from a perpendicular junction were substantially lower than thresholds estimated from a single contour or from a non-perpendicular junction. The lowest thresholds were observed when the threshold was estimated from a pair of parallel contours. These results suggest that the visual system is sensitive to perpendicular junctions and parallel contours in a retinal image.
Added: Sep 3, 2018
Veselov E. A., Uvaysov S. U., Lvov B. G. et al. In bk.: Innovative Information Technologies: Materials of the International scientific–practical conference. Part 2. Prt. 2. M.: HSE, 2014. Ch. 2. P. 710-716.
This article presents a research of direct and reverse projection procedures. Presents Mathematical calculations of spatial situated point projection are presented as particular case for obtaining the expressions which describe this process. The application of these processes in problems of three-dimensional object reconstruction from images is demonstrated by a simple 3D object.
Added: Jun 23, 2014