posted on 2023-12-07, 07:01authored byPablo Meza, David Norato, Miguel Marquez, Andrés Jerez, Henry Arguello, Esteban Vera
Snapshot compressive imaging of high-dimensional data is indispensable for numerous areas of study. Despite the remarkable advances in either spectral or temporal approaches separately, optically compressing a spectral video in a single snapshot remains challenging. In this article, we report a novel compressive spectral video scheme that offers a dynamic color-coded wavelength coding plus a windowing approach to handle the temporal dimension. The proposed compressive coding scheme is implemented by synchronizing a tunable bandpass filter and a coded aperture device to code and acquire the spectral video within a fixed exposure time. Special attention is given to the design and evaluation of the dynamic coded apertures using binary masks. We develop and implement a plug-and-play alternating-direction method of multiplier to efficiently recover the four-dimensional datacubes. We demonstrate the ability of the proposed approach to capture and reconstruct spectral video information in both spectral classification and motion tracking applications.
History
Funder Name
Fondo Nacional de Desarrollo Científico y Tecnológico (1201081,13220234); Agencia Nacional de Investigación y Desarrollo ANILLOS (ATE220022); Ministerio de Educación, Gobierno de Chile (FRO19101); Vicerrectoría de Investigación y Extensión, Universidad Industrial de Santander (VIE-code 3735)