Lytro Illum Calibration Dataset

Calibration datasets used in the article Standard Plenoptic Cameras Mapping to Camera Arrays and Calibration based on DLT. These datasets were acquired with a Lytro Illum camera using two calibration grids with different sizes: 8 × 6 grid of 211 × 159 mm (Big Pattern) with approximately 26.5 mm cells, and 20×20 grid of 121.5 × 122 mm (Small Pattern) with approximately 6.1 mm cells. Each dataset acquired is composed of 66 fully observable poses of the calibration pattern. The datasets contain images with objects in order to evaluate the rectification in images not used during the calibration. Care was taken to avoid changing the focal settings of the camera.

本文中使用的标定数据集，旨在对标准全视场相机阵列进行映射及基于直接线性变换（DLT）的标定。这些数据集由Lytro Illum相机采集，采用两种不同尺寸的标定网格：一种为211 × 159毫米的8 × 6网格（大图案），其单元格尺寸约为26.5毫米；另一种为121.5 × 122毫米的20 × 20网格（小图案），其单元格尺寸约为6.1毫米。每个采集的数据集均包含66个可完全观察的标定图案姿态。数据集中包含具有物体的图像，以便评估在标定过程中未使用的图像的校正效果。在采集过程中，特别留意避免改变相机的焦距设置。