Decoding and calibration method on focused plenoptic camera
Chunping Zhang,Zhe Ji,Qing Wang +2 more
TLDR
A 10-intrinsic-parameter model for focused plenoptic camera with misalignment that enables an accurate decoding of light field on both angular and positional information, and guarantees a unique solution for the 10 intrinsic parameters in geometry is described.Abstract:
The ability of light gathering of plenoptic camera opens up new opportunities for a wide range of computer vision applications. An efficient and accurate method to calibrate plenoptic camera is crucial for its development. This paper describes a 10-intrinsic-parameter model for focused plenoptic camera with misalignment. By exploiting the relationship between the raw image features and the depth–scale information in the scene, we propose to estimate the intrinsic parameters from raw images directly, with a parallel biplanar board which provides depth prior. The proposed method enables an accurate decoding of light field on both angular and positional information, and guarantees a unique solution for the 10 intrinsic parameters in geometry. Experiments on both simulation and real scene data validate the performance of the proposed calibration method.read more
Citations
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Journal ArticleDOI
A Generic Multi-Projection-Center Model and Calibration Method for Light Field Cameras
TL;DR: Wang et al. as mentioned in this paper proposed a multi-projection center (MPC) model with 6 intrinsic parameters to characterize light field cameras based on traditional two-parallelplane (TPP) representation.
Journal ArticleDOI
A two-step calibration method of lenslet-based light field cameras
TL;DR: This paper proposes a two-step physically based calibration method for lenslet-based light field camera, where every parameter is described with its own physical meaning.
Proceedings ArticleDOI
Calibrating Light-Field Cameras Using Plenoptic Disc Features
TL;DR: The intrinsic geometry of plenoptic cameras is exploited in a novel projection model that relates the plenOptic disc features to physical points, and the resulting calibration quality outperforms recently published results.
Proceedings ArticleDOI
Light-Field Camera Calibration from Raw Images
TL;DR: A new cost function based on reprojection errors of both checkerboard corners and micro-lenses centers in the raw image space is introduced and a more complete geometrical model than previous work composed of 16 intrinsic parameters is presented.
Journal ArticleDOI
Virtual Image Points Based Geometrical Parameters’ Calibration for Focused Light Field Camera
TL;DR: A virtual image points based geometrical parameters’ calibration for focused light field camera with Levenberg–Marquardt algorithm is proposed and the checkerboard is used for the calibration experiment and the calculation via the reprojection of thecheckerboard corners is validated.
References
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A flexible new technique for camera calibration
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Proceedings ArticleDOI
Light field rendering
Marc Levoy,Pat Hanrahan +1 more
TL;DR: This paper describes a sampled representation for light fields that allows for both efficient creation and display of inward and outward looking views, and describes a compression system that is able to compress the light fields generated by more than a factor of 100:1 with very little loss of fidelity.
Light field photography with a hand-held plenoptic camera
TL;DR: The plenoptic camera as mentioned in this paper uses a microlens array between the sensor and the main lens to measure the total amount of light deposited at that location, but how much light arrives along each ray.
Proceedings ArticleDOI
Decoding, Calibration and Rectification for Lenselet-Based Plenoptic Cameras
TL;DR: This work derives a novel physically based 4D intrinsic matrix relating each recorded pixel to its corresponding ray in 3D space as part of a decoding, calibration and rectification procedure for lenselet-based plenoptic cameras appropriate for a range of computer vision applications.
Book
Digital light field photography
Pat Hanrahan,Ren Ng +1 more
TL;DR: In this paper, the authors present a unified solution to focus problems by instead recording the light field inside the camera: not just the position but also the direction of light rays striking the image plane.