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01.12.2016 | EXPRESS PAPER | Ausgabe 1/2016 Open Access

IPSJ Transactions on Computer Vision and Applications 1/2016

Variable exposure time imaging for obtaining unblurred HDR images

IPSJ Transactions on Computer Vision and Applications > Ausgabe 1/2016
Saori Uda, Fumihiko Sakaue, Jun Sato
Wichtige Hinweise

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

SU designed and carried out the experiments and wrote the manuscript mainly. FS contributed to concept and wrote the manuscript partially. JS conceived and conducted the study. All authors reviewed and approved the final manuscript.


In this paper, we propose a new camera and a new imaging technique for obtaining unblurred high-dynamic-range (HDR) images. In this camera, we achieve pixelwise control of exposure parameters by using a liquid crystal on silicon. In particular, we can control not only the amount of exposure but also the exposure time pixel by pixel. We call the imaging as variable exposure time imaging. By using the variable exposure time imaging, we can suppress motion blur of bright regions. In addition, we propose a motion blur recovering method from variable exposure time images for obtaining more distinct images including darker regions. Experimental results show our method can take a clear HDR image even if the target object moves in HDR scene.
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