NDLI: Extending depth of field and dynamic range from differently focused and exposed images

Content Provider	Springer Nature Link
Author	Qian, Qinchun Gunturk, Bahadir K.
Copyright Year	2015
Abstract	Focus stacking and high dynamic range (HDR) imaging are two paradigms of computational photography. Focus stacking aims to produce an image with greater depth of field (DOF) from a set of images taken with different focus distances; HDR imaging aims to produce an image with higher dynamic range from a set of images taken with different exposure values. In this paper, we present an algorithm which combines focus stacking and HDR imaging in order to produce an image with both extended DOF and dynamic range from a set of differently focused and exposed images. The key step in our algorithm is focus stacking regardless of the differences in exposure values of input images. This step includes photometric and spatial registration of images, and image fusion to produce all-in-focus images. This is followed by HDR radiance estimation and tonemapping. We provide experimental results with real data to illustrate the algorithm.
Starting Page	493
Ending Page	509
Page Count	17
File Format	PDF
ISSN	09236082
Journal	Multidimensional Systems and Signal Processing
Volume Number	27
Issue Number	2
e-ISSN	15730824
Language	English
Publisher	Springer US
Publisher Date	2015-01-31
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	High dynamic range imaging Focus stacking Photometric and spatial registration Circuits and Systems Electrical Engineering Signal, Image and Speech Processing Artificial Intelligence (incl. Robotics)
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Artificial Intelligence Signal Processing Information Systems Computer Science Applications Software Hardware and Architecture

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