用于精准农业的大带宽双MSFA传感器相机的设计与开发
Design and Development of Large-Band Dual-MSFA Sensor Camera for Precision Agriculture.
作者信息
Mohammadi Vahid, Gouton Pierre, Rossé Matthieu, Katakpe Kossi Kuma
机构信息
ImViA Laboratory, UFR Sciences et Techniques, University of Burgundy, 21078 Dijon, France.
出版信息
Sensors (Basel). 2023 Dec 22;24(1):64. doi: 10.3390/s24010064.
The optimal design and construction of multispectral cameras can remarkably reduce the costs of spectral imaging systems and efficiently decrease the amount of image processing and analysis required. Also, multispectral imaging provides effective imaging information through higher-resolution images. This study aimed to develop novel, multispectral cameras based on Fabry-Pérot technology for agricultural applications such as plant/weed separation, ripeness estimation, and disease detection. Two multispectral cameras were developed, covering visible and near-infrared ranges from 380 nm to 950 nm. A monochrome image sensor with a resolution of 1600 × 1200 pixels was used, and two multispectral filter arrays were developed and mounted on the sensors. The filter pitch was 4.5 μm, and each multispectral filter array consisted of eight bands. Band selection was performed using a genetic algorithm. For VIS and NIR filters, maximum RMS values of 0.0740 and 0.0986 were obtained, respectively. The spectral response of the filters in VIS was significant; however, in NIR, the spectral response of the filters after 830 nm decreased by half. In total, these cameras provided 16 spectral images in high resolution for agricultural purposes.
多光谱相机的优化设计与构建能够显著降低光谱成像系统的成本,并有效减少所需的图像处理与分析量。此外,多光谱成像通过更高分辨率的图像提供有效的成像信息。本研究旨在开发基于法布里-珀罗技术的新型多光谱相机,用于植物/杂草分离、成熟度估计和疾病检测等农业应用。开发了两款多光谱相机,覆盖380纳米至950纳米的可见光和近红外范围。使用了分辨率为1600×1200像素的单色图像传感器,并开发了两个多光谱滤光片阵列并安装在传感器上。滤光片间距为4.5微米,每个多光谱滤光片阵列由八个波段组成。波段选择使用遗传算法进行。对于可见光和近红外滤光片,分别获得了0.0740和0.0986的最大均方根值。滤光片在可见光区域的光谱响应显著;然而,在近红外区域,830纳米之后滤光片的光谱响应下降了一半。总体而言,这些相机为农业目的提供了16幅高分辨率光谱图像。
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