光学精密工程2026，Vol.34Issue(8)：1203-1218,16.DOI:10.37188/OPE.20263408.1203
机载快照多光谱与热红外多维光学吊舱设计与应用探索
Design and application exploration of an airborne snapshot multispectral and thermal infrared multidimensional optical pod
摘要
Abstract
A multidimensional optical pod integrating snapshot multispectral and thermal infrared imaging was designed and implemented to meet the demand for airborne remote sensing with multimodal coopera-tive detection.The system adopted a pixel-level mosaic filter-based snapshot multispectral imaging scheme.Through a dual-camera cooperative configuration,18 discrete visible-near-infrared spectral chan-nels were constructed,covering two spectral ranges of 480～600 nm and 650～800 nm.A 3×3 pixel-level mosaic sampling structure was employed.Under a 2×2 pixel binning strategy,the effective single-chan-nel spatial resolution reached 680×510,with an equivalent pixel size of 6.8 µm,enabling video-rate multi-spectral acquisition.A thermal infrared imaging payload was synchronously integrated to achieve simulta-neous multi-source data acquisition.For heterogeneous multimodal data,a processing framework combin-ing geometric registration,spectral feature augmentation,principal component analysis-based dimensional-ity reduction,and unsupervised K-means clustering was established.Thermal infrared information was fur-ther introduced into the principal component feature space to enhance land-cover separability.Experimen-tal results show that the center wavelengths of the multispectral channels agree well with the design val-ues,with bandwidths of approximately 2%of the center wavelengths.Radiometric calibration exhibits near-unity linear fitting coefficients,indicating stable and reliable system response.In representative appli-cations,the fusion of thermal infrared information effectively improves water boundary integrity,vegeta-tion detection statistics,and land-cover classification performance.The intersection-over-union(IoU)in-creases by 2.7%and 6.6%,and the Dice coefficient increases by 1.7%and 4.5%in two typical scenari-os.These results demonstrate that the proposed multimodal optical pod has strong potential for natural re-source surveys and ecological environment monitoring.关键词
机载遥感/多模态协同探测/光学吊舱/快照多光谱/像元级马赛克/热成像/地物分类Key words
airborne remote sensing/multimodal cooperative detection/optical pod/snapshot multispec-tral imaging/pixel-level mosaic/thermal imaging/land-cover classification分类
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赵宇博,占杰,吕昊,刘晓煌,于涛,胡炳樑..机载快照多光谱与热红外多维光学吊舱设计与应用探索[J].光学精密工程,2026,34(8):1203-1218,16.基金项目
自然资源要素耦合过程与效应重点实验室开放基金(No.2025261) （No.2025261）
西安光学精密机械研究所自主部署项目(No.S24-030-III) （No.S24-030-III）
空军军医大学伙伴实验室合作交流计划(No.2024HB018) （No.2024HB018）
