Detection of depth order from chromatic aberration of defocused images
نویسندگان
چکیده
منابع مشابه
Detection of the depth order of defocused images
The sign of an accommodative response is provided by differences in chromatic aberration between under- and over-accommodated images. We asked whether these differences enable people to judge the depth order of two stimuli in the absence of other depth cues. Two vertical edges separated by an illuminated gap were presented at random relative distances. Exposure was brief, or prolonged with fixe...
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In this paper, we introduce chromatic aberration as a source of visual information that can be useful for autofocus and depth estimation. A color video camera equiped with a lens with chromatic aberration has been used to take images of both step and occlussion edges at several distances from the camera. The defocus measures obtained in the three d$ferent RGB color channels of each image are di...
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This paper presents a novel iterative feedback framework for simultaneous estimation of depth map and All-In-Focus (AIF) image, which benefits each other in each stage to obtain final convergence: For the recovery of AIF image, sparse prior of natural image is incorporated to ensure high quality defocus removal even under inaccurate depth estimation. In depth estimation step, we feed back the c...
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The recovery of depth from defocused images involves calcurecovering the depth [2]. lating the depth of various points in a scene by modeling the The problem addressed in this paper is as follows— effect that the focal parameters of the camera have on images Given a scene with object points at unknown depths from acquired with a small depth of field. In the approach to depth the camera, obtain ...
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We propose a method for simultaneous recovery of depth and restoration of scene intensity, given two defocused images of a scene. The space-variant blur parameter and the focused image of the scene are modeled as Markov random.fields (MRFs). Line fields are included to preserve discontinuities. The joint posterior distribution of the blur parameter and the intensity process is examined for loca...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2004
ISSN: 1534-7362
DOI: 10.1167/4.11.57