The effect of articulation in three-dimensional visual illusions

The effect of articulation is known as the influence of the background complexity on lightness estimations of the test surface. Earlier this effect was investigated for two-dimensional scenes. In this issue the strength of articulation effect was studied for three-dimensional scenes and the question was aroused: whether the number of patches with different brightness or the number of objects with different lightness determined its strength. We investigated the role of 3D articulated backgrounds in the perception of the modified simultaneous lightness contrast illusion using CAVE system. The results showed that lightness estimation did not depend on the number of patches with different brightness if the number of objects with different lightness remained constant.

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