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Live demonstration: Depth from focus on a focal plane processor using a focus tunable liquid lens


Martel, Julien N P; Muller, Lorenz K; Carey, Stephen J; Muller, Jonathan; Sandamirskaya, Yulia; Dudek, Piotr (2017). Live demonstration: Depth from focus on a focal plane processor using a focus tunable liquid lens. In: IEEE International Symposium on Circuits and Systems (ISCAS) 2017, Baltimore, USA, 29 May 2017 - 6 January 2017.

Abstract

We demonstrate a 3D imaging system that produces sparse depth maps. It consists in a liquid focus-tunable lens whose focal power can be changed at high speed, placed in front of a SCAMP5 vision-chip embedding processing capabilities in each pixel. The focus-tunable lens performs focal sweeps with shallow depth of fields. These are sampled by the vision chip taking multiple images at different focus and analyzed on-chip to produce a single depth frame. The combination of the focus tunable-lens with the vision-chip, enabling near-focal plane processing, allows us to present a compact passive system that is static, monocular, real-time (> 25FPS) and low-power (<; 1.6W).

Abstract

We demonstrate a 3D imaging system that produces sparse depth maps. It consists in a liquid focus-tunable lens whose focal power can be changed at high speed, placed in front of a SCAMP5 vision-chip embedding processing capabilities in each pixel. The focus-tunable lens performs focal sweeps with shallow depth of fields. These are sampled by the vision chip taking multiple images at different focus and analyzed on-chip to produce a single depth frame. The combination of the focus tunable-lens with the vision-chip, enabling near-focal plane processing, allows us to present a compact passive system that is static, monocular, real-time (> 25FPS) and low-power (<; 1.6W).

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Additional indexing

Item Type:Conference or Workshop Item (Other), refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Neuroinformatics
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Event End Date:6 January 2017
Deposited On:23 Feb 2018 09:51
Last Modified:31 Jul 2018 05:11
Publisher:Proceedings of IEEE International Symposium on Circuits and Systems (ISCAS) 2017
Series Name:Proceedings-IEEE International Symposium on Circuits and Systems
OA Status:Closed
Free access at:Official URL. An embargo period may apply.
Publisher DOI:https://doi.org/10.1109/ISCAS.2017.8050715
Official URL:http://ieeexplore.ieee.org/abstract/document/8050715/

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