The paper is the result of the work carried out during his research internship at the University of Arizona.
Felipe Guzmán, a member of our Optoelectronics Laboratory, is completing his Ph.D. in Electrical Engineering at PUCV. In this context, in 2023, he spent 6 months at the University of Arizona conducting a research internship at the institution’s Camera Lab, under the supervision of the renowned professor David Brady.
As an extension of his doctoral work in video acquisition systems, he, along with James Skowronek from the Wyant College of Optical Sciences at the University of Arizona and with the support of the EIE professor Esteban Vera, began researching and creating this material titled “Compressive Video via IR-pulsed Illumination.”
The article was published in the Optics Express journal of the Optica organization, which has an impact factor of 3.8, and can be reviewed in the following link: https://doi.org/10.1364/OE.506011
What is it about?
This collaborative research introduces a novel technique for compressive video with active illumination, along with the design of a neural network capable of taking the information and reconstructing a video. This means that by emitting pseudo-random pulses of light, a complete video can be acquired within a single image.
Felipe Guzmán explains, “It is the first time that a high-power pulsed illuminator of this nature has been created. This led me to develop a circuit capable of illuminating six LEDs with the camera, synchronized with a precision of microseconds”, says the author.
In summary, the system allows for obtaining high-speed videos from controlled illumination pulses, increasing the capture speed of a camera by more than 10 times. This can be applied in different areas, such as robotics, autonomous driving, fluid dynamics analysis, or obtaining sharper images in astronomy, among others.