Professor Nabeel Riza’s team Demonstrates Robust Image Capture of Un-Attenuated Bright Targets using the CDMA-Mode CAOS Smart Camera

Dec.22, 2017, Cork, Ireland:

Nabeel Riza, Chair Professor of Electrical Engineering, University College Cork, Ireland, and his team have demonstrated enhanced imaging capabilities with their CAOS smart camera. Earlier in 2016, the new multi-spectrum camera technology called CAOS or Coded Access Optical Sensor working in unison with today’s CCD/CMOS/FPA sensors was able to pull out image features reaching a record 136 dB linear dynamic range reported in the online open access International Optical Society (OSA) high impact journal Optics Express, Dec.12, 2016.  In the recent work reported in the Optics Express Dec.11, 2017 issue, the team demonstrates robust and higher speed simultaneous pixels imaging of bright targets in the visible band without engaging any optical attenuation that can otherwise eliminate faint targets within an extreme dynamic range scene plus reduce image quality of the bright targets. A view of the ambient room lighting exposed non-lit “L” contour target is first shown (see first image from left) using a CMOS sensor camera.  The team next showed that the CMOS-mode of the CAOS smart camera is first engaged with optimized optical attenuation and CMOS sensor integration time control to provide an initial contour guiding best acquirable map of the brightly lit target. As is visually seen, this image map of an irregular shaped target sign “L” is lacking in pixel irradiance data robustness (second image from left) due to inherent limitations in commercial multi-pixel CMOS sensors. By engaging the new fast image capture CDMA-mode of the CAOS camera, a high pixel irradiance robustness image map is successfully captured (two images from the right with improving CAOS-mode spatial resolution) without the use of any optical attenuation subjected to the incident scene light. These new demonstrated capabilities of the multi-spectrum CAOS smart camera can create impact in various scenarios with bright targets within extreme dynamic range scenes such as in automotive vision, laser metrology, biomedical imaging, defence, and industrial machine vision. Click the link to download paper.