Depth from focus

P Grossmann - Pattern recognition letters, 1987 - Elsevier
A new method for extracting depth information from 2-dimensional images is propsed. The
depth structure of a scene is computed using measurements of the degree of blur in an …

[PDF][PDF] A depth recovery algorithm using defocus information

THJJ Clark, AL Yuille - Proc. IEEE Conf. Computer Vision and Pattern …, 1989 - cim.mcgill.ca
Pentland recently proposed an algorithm for sensing scene depth Ъу measuring the amount
of defocus of an image. The algorithm is interesting in the sense that no correspondence …

Depth from focus using a pyramid architecture

T Darell, K Wohn - Pattern Recognition Letters, 1990 - Elsevier
A method is presented for depth recovery through the analysis of scene sharpness across
changing focus position. Modeling a defocused image as the application of a low pass filter …

Depth from automatic defocusing

V Aslantas, DT Pham - Optics Express, 2007 - opg.optica.org
This paper presents a depth recovery method that gives the depth of any scene from its
defocused images. The method combines depth from defocusing and depth from automatic …

On the recovery of depth from a single defocused image

S Zhuo, T Sim - Computer Analysis of Images and Patterns: 13th …, 2009 - Springer
In this paper we address the challenging problem of recovering the depth of a scene from a
single image using defocus cue. To achieve this, we first present a novel approach to …

A generalized depth estimation algorithm with a single image

SH Lai, CW Fu, S Chang - IEEE Transactions on Pattern Analysis & …, 1992 - computer.org
A depth estimation algorithm proposed by AP Pentland (1987) is generalized. In the
proposed algorithm, the raw image data in the vicinity of the edge is used to estimate the …

Depth from zooming

J Ma, SI Olsen - JOSA A, 1990 - opg.optica.org
A new method of recovering depth, which uses only one camera equipped with a zoom lens,
is presented. The gradient-based as well as the feature-based schemes for recovering depth …

Depth from camera motion in a real world scene

TD Williams - IEEE Transactions on Pattern Analysis and …, 1980 - ieeexplore.ieee.org
Depth from camera motion in a real world scene Page 1 IEEE TRANSACTIONS ON PATTERN
ANALYSIS AND MACHINE INTELLIGENCE, VOL. PAMI-2, NO. 6, NOVEMBER 1980 511 Depth …

A new sense for depth of field

AP Pentland - IEEE transactions on pattern analysis and …, 1987 - ieeexplore.ieee.org
This paper examines a novel source of depth information: focal gradients resulting from the
limited depth of field inherent in most optical systems. Previously, autofocus schemes have …

An investigation of methods for determining depth from focus

J Ens, P Lawrence - IEEE Transactions on pattern analysis and …, 1993 - ieeexplore.ieee.org
The concept of depth from focus involves calculating distances to points in an observed
scene by modeling the effect that the camera's focal parameters have on images acquired …