Video-rate computational super-resolution and integral imaging at longwave-infrared wavelengths

@article{Preciado2018VideorateCS,
  title={Video-rate computational super-resolution and integral imaging at longwave-infrared wavelengths},
  author={Miguel A. Preciado and Guillem Carles and Andrew R. Harvey},
  journal={OSA Continuum},
  year={2018}
}
We report the first computational super-resolved, multi-camera integral imaging at long-wave infrared (LWIR) wavelengths. A synchronized array of FLIR Lepton cameras was assembled, and computational super-resolution and integral-imaging reconstruction employed to generate video with light-field imaging capabilities, such as 3D imaging and recognition of partially obscured objects, while also providing a four-fold increase in effective pixel count. This approach to high-resolution imaging… 

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References

SHOWING 1-10 OF 32 REFERENCES

Super-resolution imaging using a camera array.

The practical demonstration of SR imaging using an array of 25 independent commercial-off-the-shelf cameras demonstrates the potential for increasing the angular resolution toward the diffraction limit, but without the limit on angular resolution imposed by the use of a single detector array.

Compact multi-aperture imaging with high angular resolution.

This work highlights how using an array of dissimilar lenslets, with an array width that can be much wider than the detector array, high-resolution super-resolved imaging is possible.

Pixel super-resolution using wavelength scanning

A new pixel super-resolution method based on wavelength scanning is introduced and it is demonstrated that as an alternative to physical shifting/displacements, wavelength diversity can be used to boost the resolution of a wide-field imaging system and significantly increase its space-bandwidth product.

Three-Dimensional Super Resolution Reconstruction by Integral Imaging

A novel three-dimensional (3D) super resolution reconstruction technique by integral imaging to reconstruct a high-resolution 3D image directly from a series of low-resolution perspective projections of a 3D scene is presented.

Three-dimensional integral imaging and object detection using long-wave infrared imaging.

This is the first report of passive 3D integral imaging with LWIR for object detection, and in particular, in low light environments, and the experiments with human face detection show that 2D imaging may fail to detect occluded humans, whereas passive3D imaging with LSIR could be successful.

Extra-thin infrared camera for low-cost surveillance applications.

A cheap broadband uncooled microimager operating in the long-wavelength infrared range using only one lens at a minimal cost for the manufacturing process using a Fresnel lens on a thin silicon substrate is designed.

Super-resolution image reconstruction: a technical overview

The goal of this article is to introduce the concept of SR algorithms to readers who are unfamiliar with this area and to provide a review for experts to present the technical review of various existing SR methodologies which are often employed.

Multichanneled finite-conjugate imaging.

It is shown that robust recovery of high-resolution images can be obtained by avoiding excessive redundancy and that this is a felicitous consequence of typical manufacturing tolerances.

Advances in three-dimensional integral imaging: sensing, display, and applications [Invited].

This Commemorative Review presents an overview of literature on physical principles and applications of integral imaging, and applications including 3D underwater imaging, 3D imaging in photon-starved environments, 2D tracking of occluded objects,3D optical microscopy, and 3D polarimetric imaging are reviewed.

Focused plenoptic camera and rendering

This work analyzes the focused plenoptic camera in optical phase space and presents basic, blended, and depth-based rendering algorithms for producing high-quality, high-resolution images in real time.