Dataset to support the publication "An ultra-compact metasurface and specklemeter based chromatic confocal sensor"

This dataset is supporting the publication "An ultra-compact metasurface and specklemeter based chromatic confocal sensor" by Przemyslaw Falak et al, in IEEE Transactions on Instrumentation and Measurement This dataset contains one archived file .zip with the following content: 1) This README.txt file, 2) File "Distance_reconstruction.fig" 3) File "Distance_reconstruction.png" 4) File "PCA_values.fig" 5) File "PCA_values.png" 6) File "Reconstruction_error.fig" 7) File "Reconstruction_error.png" 8) File "Metalens_spectradata.mat" 9) File "Metalens_spectradata.png" The raw data was collected as speckle patterns captured by CMOS IMX219 camera Raspberry Pi V2 NoIR (.png files) and further processed by MATLAB scripts. All files were created in MATLAB R2021a and shall be opened by any MATLAB version, starting from R2014b. Alternatively, the files are provided as .png (image) for a preview, but the data underlying these cannot be recovered, unless .fig files are used.

本数据集用于支撑Przemysław Falak等人发表于《IEEE仪器与测量汇刊（IEEE Transactions on Instrumentation and Measurement）》的论文《基于超表面（metasurface）与散斑计（specklemeter）的超紧凑型色度共焦传感器（chromatic confocal sensor）》。本数据集包含1个归档.zip文件，其内包含如下内容：1）本README.txt说明文件；2）"Distance_reconstruction.fig"文件；3）"Distance_reconstruction.png"文件；4）"PCA_values.fig"文件；5）"PCA_values.png"文件；6）"Reconstruction_error.fig"文件；7）"Reconstruction_error.png"文件；8）"Metalens_spectradata.mat"文件；9）"Metalens_spectradata.png"文件。原始数据为由树莓派V2 NoIR版CMOS IMX219摄像头采集的散斑图案（存储为.png格式文件），后续通过MATLAB脚本进行处理。所有文件均基于MATLAB R2021a创建，可通过R2014b及以上版本的MATLAB打开。此外，本数据集提供了.png格式的预览图像，但除非使用对应的.fig文件，否则无法还原图像背后的原始数据。