The contribution of image blur to depth perception
نویسندگان
چکیده
منابع مشابه
Blur discrimination and its relation to blur-mediated depth perception.
Retinal images of three-dimensional scenes often contain regions that are spatially blurred by different amounts, owing to depth variation in the scene and depth-of-focus limitations in the eye. Variations in blur between regions in the retinal image therefore offer a cue to their relative physical depths. In the first experiment we investigated apparent depth ordering in images containing two ...
متن کاملBlur and the perception of depth at occlusions.
The depth ordering of two surfaces, one occluding the other, can in principle be determined from the correlation between the occlusion border's blur and the blur of the two surfaces. If the border is blurred, the blurrier surface is nearer; if the border is sharp, the sharper surface is nearer. Previous research has found that observers do not use this informative cue. We reexamined this findin...
متن کاملThe utility of defocus blur in binocular depth perception
The question of whether defocus blur is a quantitative cue for depth perception is a topic of renewed interest. A recent study suggests that relative defocus blur can be used in computing depth throughout the visual field, particularly in regions where disparity loses precision. However, elements of the study's experimental design and theoretical analysis appear to undermine this claim. First, ...
متن کاملDepth cue integration: stereopsis and image blur
Depth-of-focus limitations introduce spatial blur in images of three-dimensional scenes. It is not clear how the visual system combines depth information derived from image blur with information from other depth cues. Stereoscopic disparity is the pre-eminent depth cue, so experiments were conducted to investigate interactions between image blur and stereoscopic disparity. Observers viewed two ...
متن کاملDepth Estimation of A Monocular Image from Image Blur
In computer vision, estimating the depth information of object from an image/video has always been a hot topic, and finds many applications. In this paper, we make use of the image blurs caused by defocus aberration to estimate the relative distance in an object. To be more computationally efficient, we focus on the blurs along image edges. Experiments shows the effectiveness of our proposed me...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2004
ISSN: 1534-7362
DOI: 10.1167/4.8.461