Multi-angle and full-Stokes polarization multispectral images using quarter-wave plate and tunable filter

The folder named "MAFS-PMI dataset" contains the multi-angle and full-Stokes polarization multispectral images (MAFS-PMI) dataset. The folder named "MAFS-PMI experimental data" contains experimental data captured to further obtain the MAFS-PMI dataset. The folder named "MAFS-PMI generation code" contains the software code and supporting files to process the MAFS-PMI experimental data and then generate the MAFS-PMI dataset. Details are as follows:

The processed image data of all 12 objects is packaged into "MAFS-PMI dataset.zip". The image data for each object is stored separately in a file labeled as "Object_xx.mat". For example, the file labeled as "Object_01.mat" stores image data for the first object. The data in each file includes 13 variables: a variable for the spectral bands of the liquid crystal tunable filter (LCTF), a variable for the fast axis angles of the quarter-wave plate (QWP), a variable for the incident linear polarization angles of the LCTF, a variable for the preprocessed multi-angle polarization multispectral images, four variables for the derived Stokes polarization multispectral images, two variables for the derived polarization angle multispectral images, and three variables for the derived polarization degree multispectral images. See the file labeled as "readme.txt" in the package for more details.

The raw experimental images of all 12 objects are packaged into "MAFS-PMI experimental data.zip". The folder labeled as "Object_xx" contains images captured for each object. For example, the folder named "Object_01" contains images captured for the first object. A total of 40392 images are captured for 12 objects, accounting for 631 GB. See the file labeled as "readme.txt" in the package for more details.

The experimental data are processed using MATLAB R2019b software to generate the MAFS-PMI dataset. The software code and supporting files that generate the dataset are packaged into "MAFS-PMI generation code.zip". The file labeled as "dataset_generation_main.m" is the main program to process the experimental data to further generate the dataset. The file labeled as "text2trans.m" is the function required to run the main program, implementing the interpolation of the various spectral responses to the same wavelengths. Spectral response files (.txt) for all devices named by their items are provided in the folder "Optical devices", which is also called when running the main program. See the file labeled as "readme.txt" in the package for more details.

名为"MAFS-PMI数据集"的文件夹包含多角度全斯托克斯偏振多光谱图像（MAFS-PMI）数据集。名为"MAFS-PMI实验数据"的文件夹包含为进一步获取MAFS-PMI数据集而采集的实测数据。名为"MAFS-PMI生成代码"的文件夹包含用于处理MAFS-PMI实验数据并生成MAFS-PMI数据集的软件代码及配套文件。详细说明如下：

全部12个目标的处理后图像数据已打包为"MAFS-PMI dataset.zip"。每个目标的图像数据均单独存储于标注为"Object_xx.mat"的文件中。例如，"Object_01.mat"存储首个目标的图像数据。每个文件内包含13个变量：液晶可调谐滤光片（Liquid Crystal Tunable Filter, LCTF）光谱波段变量、四分之一波片（Quarter-wave Plate, QWP）快轴角变量、LCTF入射线性偏振角变量、预处理后的多角度偏振多光谱图像变量、4个派生斯托克斯偏振多光谱图像变量、2个派生偏振角多光谱图像变量，以及3个派生偏振度多光谱图像变量。更多细节请参阅压缩包内标注为"readme.txt"的文件。

全部12个目标的原始实验图像已打包为"MAFS-PMI experimental data.zip"。标注为"Object_xx"的文件夹包含对应目标的采集图像。例如，"Object_01"文件夹存储首个目标的采集图像。12个目标共计采集40392张图像，总数据量达631 GB。更多细节请参阅压缩包内标注为"readme.txt"的文件。

本实验数据通过MATLAB R2019b软件进行处理以生成MAFS-PMI数据集。用于生成该数据集的软件代码及配套文件已打包为"MAFS-PMI generation code.zip"。其中，标注为"dataset_generation_main.m"的文件为处理实验数据并生成数据集的主程序；标注为"text2trans.m"的文件为运行主程序所需的功能函数，可实现各类光谱响应向同一波长的插值。"Optical devices"文件夹内提供了所有设备的光谱响应文件（.txt格式），文件以对应设备名称命名，运行主程序时将调用该文件夹内的文件。更多细节请参阅压缩包内标注为"readme.txt"的文件。

搜集汇总

背景与挑战

背景概述

该数据集提供多角度和全斯托克斯偏振多光谱图像，包含12个对象的处理图像、原始实验数据和生成代码，适用于偏振光学和光谱成像研究。