Imaging With SPADs and DMDs: Seeing Through Diffraction-Photons

Ibrahim Alsolami, Wolfgang Heidrich

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This paper addresses the problem of imaging in the presence of diffraction-photons. Diffraction-photons arise from the low contrast ratio of DMDs (1000:1), and very much degrade the quality of images captured by SPAD-based systems. Herein, a joint illumination-deconvolution scheme is designed to overcome diffraction-photons, enabling the acquisition of intensity and depth images. Additionally, a proof-of-concept experiment is conducted to demonstrate the viability of the designed scheme. It is shown that by co-designing the illumination and deconvolution phases of imaging, one can substantially overcome diffraction-photons.
Original languageEnglish (US)
Pages (from-to)1440-1449
Number of pages10
JournalIEEE Transactions on Image Processing
StatePublished - Sep 19 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors wish to express their gratitude to Congli Wang, Muxingzi Li and Qilin Sun for their technical assistance and fruitful discussions.


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