Design and implementation of an infrared plenoptic camera
Conception et implémentation d'une caméra plénoptique infrarouge
Résumé
Huge efforts have been made over the past years to miniaturize cameras working in the visible spectrum and to give them new features. Plenoptic cameras for example have emerged as a new way of capturing more than just a single 2D image. These cameras usually include a microlens array positioned between the main lens of the camera and the sensor such that a point in object space is imaged onto multiple pixels. This allows for single snapshot image refocusing or depth estimation. The need for more features in a limited volume is also critical in the military domain. However, defense applications usually require the use of sensors that work in the non-visible spectrum such as cooled infrared sensors. This brings an additional challenge to the design of compact and functionalized cameras. In this paper we explain how we overcame these constraints to design and implement the first cooled infrared plenoptic camera and demonstrate its imaging and distance estimation capabilities.
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