UWA Hyperspectral Face Database

This is the largest database of hyperspectral face images containing hyperspectral image cubes of 78 subjects imaged in multiple sessions. The data was captured with the CRI's VariSpec LCTF (Liquid Crystal Tunable Filter) integrated with a Photon Focus machine vision camera. There are 33 spectral bands comering the 400 - 720nm range with a 10nm step. The noise level in the dataset is relatively lower because we adapted the camera exposure time to the transmittance of the filter illumination intensity as well as CCD sensitivity in each band. Head position is not strictly fixed during imaging and slight head movements were unavoidable between individual bands.

本数据集为包含78位受试者在多次成像过程中获取的超光谱人脸图像的最大数据库。图像数据采用CRI公司研发的 VariSpec LCTF（液晶可调滤波器）与Photon Focus机器视觉相机集成采集。数据集中包含33个光谱波段，覆盖400至720纳米的范围，步进为10纳米。由于我们根据每个波段的滤光器照射强度以及CCD灵敏度调整了相机曝光时间，因此数据集中的噪声水平相对较低。在成像过程中，头部位置并未严格固定，且在各个波段之间不可避免地存在轻微的头部移动。

AI搜集汇总

背景与挑战

背景概述

UWA Hyperspectral Face Database是目前最大的高光谱人脸图像数据库，包含78名受试者在多个会话中拍摄的高光谱图像立方体。数据使用CRI的VariSpec LCTF与Photon Focus机器视觉相机集成采集，覆盖400-720nm范围的33个光谱波段，噪声水平较低，且在成像过程中头部位置未严格固定。