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Global Shutter CMOS Vision Sensors and Event Cameras for On-Chip Dynamic Information
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  • Marko Jaklin,
  • Daniel García-Lesta,
  • Paula Lopez,
  • Victor Brea
Marko Jaklin
Universidade de Santiago de Compostela

Corresponding Author:[email protected]

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Daniel García-Lesta
Universidade de Santiago de Compostela
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Paula Lopez
Universidade de Santiago de Compostela
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Victor Brea
Universidade de Santiago de Compostela
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Abstract

The on-chip extraction of dynamic information from a scene can be addressed with either frame-based CMOS vision, also called smart image sensors, or with dynamic vision sensors, also known as event cameras. When implemented with a pinned photodiode (PPD) as 4-transistor active pixel sensors (4T-APS) the former brings about the benefit of low temporal noise and dark current but without high dynamic range (HDR). The latter comes with the benefits of HDR and fast event detection rate at a low power consumption. The drawback is the background activity noise, which leads to additional hardware or algorithms to keep it low. In essence, the taxonomy of dynamic information extraction with image sensors is that of global shutter solutions and event cameras, each of which with their pros and cons. This paper digs in such differences and similarities focused on mismatch and noise through a global shutter 4T-APS implementation with local HDR incorporated in 180 nm CMOS technology vs conventional logarithmic event sensors found in the literature.
12 Jan 2023Submitted to International Journal of Circuit Theory and Applications
12 Jan 2023Review(s) Completed, Editorial Evaluation Pending
12 Jan 2023Submission Checks Completed
12 Jan 2023Assigned to Editor
16 Jan 2023Reviewer(s) Assigned
28 Feb 2023Editorial Decision: Revise Major
29 Apr 20231st Revision Received
08 May 2023Submission Checks Completed
08 May 2023Assigned to Editor
08 May 2023Review(s) Completed, Editorial Evaluation Pending
13 May 2023Reviewer(s) Assigned
25 Jun 2023Editorial Decision: Revise Major
21 Jul 20232nd Revision Received
23 Jul 2023Assigned to Editor
23 Jul 2023Submission Checks Completed
23 Jul 2023Review(s) Completed, Editorial Evaluation Pending
30 Jul 2023Reviewer(s) Assigned
14 Aug 2023Editorial Decision: Revise Minor
06 Sep 20233rd Revision Received
07 Sep 2023Submission Checks Completed
07 Sep 2023Assigned to Editor
07 Sep 2023Review(s) Completed, Editorial Evaluation Pending
11 Sep 2023Reviewer(s) Assigned
02 Oct 2023Editorial Decision: Revise Major
20 Oct 20234th Revision Received
21 Oct 2023Submission Checks Completed
21 Oct 2023Assigned to Editor
21 Oct 2023Review(s) Completed, Editorial Evaluation Pending
23 Oct 2023Reviewer(s) Assigned
20 Nov 2023Editorial Decision: Revise Major