Spatial resolution in a multi-focus plenoptic camera

Evaluation of the state of the art plenoptic cameras is necessary for design and application purposes. In this work, spatial resolution is investigated in a multi-focus plenoptic camera using two approaches: empirical and model-based. The Raytrix R29 plenoptic camera is studied which utilizes three...

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Main Authors: Damghanian, M., Olsson, R., Sjostrom, M., Erdmann, A., Perwass, C.
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
camera evaluation
Cameras
Computational modeling
Image sensors
Lenses
Plenoptics
Spatial resolution
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Olsson, R.
Sjostrom, M.
Erdmann, A.
Perwass, C.
description Evaluation of the state of the art plenoptic cameras is necessary for design and application purposes. In this work, spatial resolution is investigated in a multi-focus plenoptic camera using two approaches: empirical and model-based. The Raytrix R29 plenoptic camera is studied which utilizes three types of micro lenses with different focal lengths in a hexagonal array structure to increase the depth of field. The modelbased approach utilizes the previously proposed sampling pattern cube (SPC) model for representation and evaluation of the plenoptic capturing systems. For the experimental resolution measurements, spatial resolution values are extracted from images reconstructed by the provided Raytrix reconstruction method. Both the measurement and the SPC model based approaches demonstrate a gradual variation of the resolution values in a wide depth range for the multi focus R29 camera. Moreover, the good agreement between the results from the model-based approach and those from the empirical approach confirms suitability of the SPC model in evaluating high-level camera parameters such as the spatial resolution in a complex capturing system as R29 multi-focus plenoptic camera.
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subjects Analytical models
camera evaluation
Cameras
Computational modeling
Image sensors
Lenses
Plenoptics
Spatial resolution
title Spatial resolution in a multi-focus plenoptic camera
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