Stepwise calibration of focused plenoptic cameras

Stepwise calibration of focused plenoptic cameras

Monocular plenoptic cameras are slightly modified, off-the-shelf cameras that have novel capabilities as they allow for truly passive, high-resolution range sensing through a single camera lens. Commercial plenoptic cameras, however, are presently delivering range data in non-metric units, which is a barrier to novel applications e.g. in the realm of robotics. In this work we revisit the calibr...

On the Calibration of Focused Plenoptic Cameras

Plenoptic cameras provide a robust way to capture 3D information with a single shot. This is accomplished by encoding the direction of the incoming rays with a microlens array (MLA) in front of the camera sensor. In the focused plenoptic camera, a MLA acts like multiple small cameras that capture the virtual scene on the focus plane of a main lens from slightly different angles, which enables a...

Unconstrained Two-parallel-plane Model for Focused Plenoptic Cameras Calibration

The plenoptic camera can capture both angular and spatial information of the rays, enabling 3D reconstruction by single exposure. The geometry of the recovered scene structure is affected by the calibration of the plenoptic camera significantly. In this paper, we propose a novel unconstrained two-parallel-plane (TPP) model with 7 parameters to describe a 4D light field. By reconstructing scene ...

Calibration of Plenoptic 2.0 Cameras and use in 3DPTV Investigations

Plenoptic 1.0 cameras have already been investigated as a means for performing 3DPIV. Plenoptic 2.0 cameras have an enhanced in-plane resolution, but are limited to less dense particle fields by their depth-detection method, and are thus less appropriate for 3DPIV. A technique more suited to less dense particle fields is 3DPTV. Time-resolved 3DPTV will be possible due to the high frame rate ava...

Plenoptic Cameras