Image Retrieval in Spatial and Temporal Domains With a Quadrant Detector

Autor: Ming-Jie Sun, Wen Chen, Teng-Fei Liu, Li-Jing Li
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: IEEE Photonics Journal, Vol 9, Iss 5, Pp 1-6 (2017)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2017.2741966
Popis: To retrieve an N pixel image of a scene, conventional digital cameras record the information using an N pixelated detector with one measurement, while single-pixel imaging achieves it by sampling the image in a particular basis and recording the light intensities of N temporal measurements with a single-pixel detector. Besides these two schemes, it is also possible to obtain the same spatial information with an X pixels detector and N/X measurements, where the pressure of information retrieval is distributed to both spatial and temporal domains, rather than condensed in one domain. In this paper, we investigate this possibility and present a 4-pixels imaging scheme, which retrieves an image partially in spatial domain and partially in temporal domain, by adopting a quadrant detector to a single-pixel imaging system. While yielding images with equal quality, the proof-of-principle system we built is four times faster than a standard single-pixel imaging system, demonstrating the feasibility of the proposed scheme. Our work exploits the flexibility of space-time information retrieval and can be useful for applications where comprise between spatial and temporal domains is needed.
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