The Generation of Depth Maps via Depth-from-Defocus (Paperback)

The principal aim of this study was to use the concept of image defocus related to feature depth in order to develop a system capable of converting a 2- dimensional greyscale image into a 3-dimensional depth map. An advantage of this concept over techniques such as stereo imaging is that there is no so-called 'correspondence problem' where the corresponding location of a feature or landmark point must be identified in each of the stereo images. The majority - and the most successful - of previous researchers in DfD have used some variation of a 'two-image' technique in order to separate the contribution of the original scene features from the defocus effect. The best of those have achieved results typically in the range of 1% to 2% error in the accuracy of depth estimation. This book presents a single-image method of generating a high-density, high-accuracy depth map via the evaluation of the edge profiles of a projected structured light pattern. The final solution generates a depth map of up to 240,000 spatially invariant depth estimates per scene image, with an accuracy of within +/- 0.5% over a depth range of 10cm.

General

Imprint:	VDM Verlag
Country of origin:	Germany
Release date:	February 2010
First published:	February 2010
Authors:	William Crofts
Dimensions:	229 x 152 x 15mm (L x W x T)
Format:	Paperback - Trade
Pages:	272
ISBN-13:	978-3-639-21259-4
Categories:	Books > Professional & Technical > Technology: general issues > General
LSN:	3-639-21259-2
Barcode:	9783639212594

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