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A Prism-Mask System for Multispectral Video Acquisition

机译：用于多光谱视频采集的棱镜面罩系统

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摘要

This paper presents a prism-mask system for capturing multispectral videos. The system is composed of a triangular prism, a monochrome camera, and an occlusion mask. Incoming light beams from the scene are sampled by the occlusion mask, dispersed into their constituent spectra by the triangular prism, and then captured by the monochrome camera. Our system is capable of capturing frames with high spectral resolution at video rates. It also allows for different trade-offs between spectral and spatial resolution by adjusting the focal length of the camera. We demonstrate multispectral video acquisition with various spectral resolutions and spatial resolutions, as well as different frame rates. The effectiveness of our system is further evaluated with several applications, including human skin detection, physical material recognition, video segmentation, RGB video generation, and illumination identification.
机译：本文提出了一种用于捕获多光谱视频的棱镜罩系统。该系统由一个三角棱镜，一个黑白相机和一个遮光罩组成。来自场景的入射光束被遮光罩采样，被三角棱镜分散到其组成光谱中，然后由单色相机捕获。我们的系统能够以视频速率捕获具有高光谱分辨率的帧。通过调整相机的焦距，还可以在光谱分辨率和空间分辨率之间进行不同的权衡。我们演示了具有各种光谱分辨率和空间分辨率以及不同帧速率的多光谱视频采集。我们的系统的有效性将通过多种应用进行进一步评估，包括人体皮肤检测，物理材料识别，视频分割，RGB视频生成和照明识别。

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