First Demonstration of the Active-Mode CAOS Camera
Nabeel A. Riza, Mohsin A. Mazhar

TL;DR
This paper presents the first active-mode CAOS camera demonstration, combining optical and time-frequency modulation techniques to achieve high dynamic range imaging suitable for applications like food inspection.
Contribution
It introduces the first active-mode CAOS camera using a hybrid optical and time-frequency modulation approach, enabling high dynamic range imaging.
Findings
Achieved 58 x 70 pixel imaging with near 60 dB linear dynamic range.
Utilized a 39.6 Klux FM LED source with 32 KHz modulation and a 4096-bit Walsh code.
Demonstrated potential applications in indoor full spectrum food inspection.
Abstract
For the first time, demonstrated is the active-mode CAOS (i.e., Coded Access Optical Sensor) camera. The design demonstrated uses a hybrid approach to both optical device engagement and time-frequency CAOS mode operations. Specifically, time-frequency modulation of both the target illumination light source and the Digital Micromirror Device (DMD) combine to deliver the Frequency Modulation (FM)-Code Division Multiple Access (CDMA) mode of the CAOS camera. Using a 39.6 Klux white light 32 KHz FM LED source combined with a 1 KHz bit rate 4096 bits Walsh sequence CDMA code via the DMD, achieved is 58 x 70 CAOS pixels near 60 dB linear Dynamic Range (DR) imaging of a 36 patch calibrated high DR white light target. Applications for the active-mode CAOS camera are numerous and includes indoor full spectrum food inspection where a linear DR camera can play an important role for accurate…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced Optical Sensing Technologies · Spectroscopy and Laser Applications · Analytical Chemistry and Sensors
