机器视觉系统 已经从传统的单色相机发展到现在利用全彩色成像，而多光谱相机是在此基础上的进一步发展，它是一种利用目标不同谱段光辐射，来执行复杂的目标检查和分析的成像系统。 当今机器视觉行业，相机颜色输出主要依赖 拜耳滤镜 （bayer，见下图）。 但是在实际应用中，对光谱的成像需求远远超出了传统的标准RGB颜色：一些应用需要非常规的 RGB 波段，而另一些应用则需要可见光和 不可见光波长 的组合，甚至，还有一些应用只需要人眼不可见的波长，如紫外线 …

2023年8月19日 · In this paper, we propose a tens-of-megapixel handheld snapshot multi-spectral camera (THETA), which combines compact setup design and algorithm development to push the spatial resolution of...

Take snapshot multispectral images with each camera exposure. Standard multispectral camera models available for precision agriculture, biomedical research, food sorting, horticulture, precision color detection, simultaneous color and near infrared imaging, and imaging in the short wave infrared range. Custom multispectral cameras available ...

The main difference between multispectral and hyperspectral cameras is the number of bands they record and how narrow the bands are (i.e., the spectral resolution). A standard definition states that hyperspectral cameras have more than 100 …

2024年11月25日 · In a world filled with invisible details, multispectral cameras serve as a gateway to discovery, unveiling hidden insights beyond the visible spectrum. By capturing light across multiple wavelengths, these advanced imaging tools have transformed industries ranging from agriculture to aerospace.

2022年4月1日 · This multispectral camera (MSC), hereafter called MEDUSA, is a tabletop, customizable and cost-efficient multispectral imaging system built with less than a 300USD budget. It uses an open Python software framework and a hardware interfacing Arduino board.

Multispectral cameras capture image data at specific frequencies across the electromagnetic spectrum. The wavelengths may be separated by filters or by using instruments which are sensitive only to specific wavelengths. This includes visible light, as well as frequencies beyond such as infrared.

Multispectral cameras are highly specialized industrial imaging devices that see much more than "just" color. They measure image data in specific wavelength ranges of the electromagnetic spectrum, far beyond what the human eye can see (380-780 nanometers).

We propose that under-sampling-based multispectral cameras can be understood and compared by examining the efficiency of their sampling schemes, which we formulate as the spectral sensing coherence information between their sensing matrices and spectrum-specific bases learned from a large-scale multispectral image database.

2017年10月25日 · This article attempts to shed light on the main specifications to consider when choosing a spectral camera. We focus on a selection of properties that set spectral imagers apart from conventional photographic cameras with emphasis …