1、 Introduction to Hyperspectral Imaging Technology

Hyperspectral imaging is a multidimensional information acquisition technique that combines imaging technology and spectroscopic technology, simultaneously detecting the two-dimensional geometric space and one-dimensional spectral information of the target, and obtaining continuous, narrow band image data with hyperspectral resolution.

The spectral resolution of hyperspectral image data can reach the order of 10-2 λ, with nanometer (nm) spectral resolution in the visible short wave infrared band range. There are dozens or even hundreds of spectral bands, and the spectral bands are continuous. Each pixel in the image data can extract a complete high-resolution spectral curve. Compared with multispectral remote sensing images, hyperspectral images not only have greatly improved information richness, but also provide the possibility for more reasonable and effective analysis and processing of such spectral data in terms of processing technology.

imaging technology

2、 Key dimensions of selection: precise matching from requirements to parameters

1. Determine the application scenario

·Agricultural scenarios (crop growth, pest and disease monitoring, nitrogen content monitoring): Priority should be given to visible light near-infrared bands (400-1000nm), while balancing spatial resolution and portable battery life.

·Environmental/geological scenarios (water pollution, soil composition, mineral identification): need to be extended to near-infrared/shortwave infrared (900-1640nm), with a focus on signal-to-noise ratio (anti-interference ability).

·Cultural relics/criminal investigation scenes (cultural relics restoration, physical evidence recognition): require high spectral resolution (≤ 5nm), support weak spectral signal capture, and non-contact detection.

·On site rapid testing (food quality, material screening): prioritize models that are lightweight (≤ 3kg), easy to operate (wireless remote control), and provide real-time results.

2. Core parameter screening

·Spectral range:Select by scene, choose 400-1000nm (visible light near infrared) for regular scenes, and 960-1640nm (short wave infrared) for deep detection.

·Spectral resolution:The smaller the size, the more accurate it is. 5-10nm is sufficient for conventional scenarios, but precise detection should be ≤ 5nm.

·Portability:Weight control within 2-3kg, built-in battery life ≥ 4 hours (field operation * backup).

·Software and Operation:Supports wireless remote control for mobile phones/tablets, data compatible with ENVI and MATLAB, and comes with spectral matching algorithms (such as spectral angle mapping).

·Reliability:The working temperature covers -10 ℃~45 ℃, supports IP54 and above waterproof and dustproof, and is suitable for complex outdoor environments.

3. Advantages of domestic brand selection

As a leader in the domestic hyperspectral field, Shuangli Hepu's core advantages lie in "accurate parameter calibration, scene adaptation, and high cost-effectiveness". The core components of its products have been localized and replaced, with specialized technologies such as hover scanning and real-time calibration. It also provides localized after-sales service (7 × 24-hour response), which is more suitable for the usage scenarios and budget needs of domestic users than imported brands.

3、 Recommended popular products of Shuangli Hepu

Portable Hyperspectral Imager with Dual Benefit SpectrumwithGaiaField SeriesAs the core, it is divided into two versions: Lite (entry-level adaptation) and Pro (professional high-end adaptation), covering the vast majority of scenarios. The specific recommendations are as follows:

1. GaiaField portable imaging spectroscopy system

GaiaField portable imaging spectroscopy system

Core advantages:The GaiaField portable hyperspectral system is an ultra portable hyperspectral imaging instrument developed by Shuangli Hesheng. By using this system for image acquisition and scanning, not only can target image information be obtained, but also spectral information of hundreds or even thousands of bands can be obtained.The GaiaField system hasLightweight and flexible, with excellent battery life, intelligence, complete data analysis and processing functions, and real-time monitoring capabilitiescharacteristics

Application fields:Widely applicable to outdoor and laboratory applications, such as military fields such as target detection and recognition, pseudo * and anti pseudo *, ecological environment monitoring fields such as ground object and water telemetry, modern precision agriculture, industrial sorting of criminal investigation, cultural relics protection, biomedical, plastic waste, tobacco leaves, chemical gas combustion flames, geological ore analysis, oil and gas rock fluorescence analysis, and more.

2. GaiaField Pro Portable Spectral Imaging System

GaiaField Pro Portable Imaging Spectroscopy System

Core advantages:GaiaField (Pro) portable hyperspectral imaging system is a super portable hyperspectral imaging instrument independently developed and designed by Shuangli Hepu, with independent technical intellectual property rights. The system coversVisible light to short wave infrared bandThe built-in processor can be used on mobile phones Ipad、 The control of terminal devices such as laptops enables the system to perform real-time image acquisition and scanning, real-time calibration, and real-time result output. In addition to obtaining target image information, it can also obtain spectral information in hundreds or even thousands of bands, achieving the goal ofUnified Graph.

Application fields:Widely applicable to outdoor and laboratory applications. For example, in military fields such as target detection and recognition, pseudo * and anti pseudo *, ecological environment monitoring fields such as ground object and water telemetry (water quality monitoring), modern precision agriculture (plant phenotype monitoring), criminal investigation, cultural relic protection (authenticity identification), biomedical (cell attribute classification and identification), plastic waste (classification and identification), industrial sorting of tobacco leaves (quality optimization), chemical gas combustion flames (composition determination and discrimination), geological ore analysis, oil and gas rock fluorescence analysis, biomedical, material performance testing and other fields.

4、 Choose to avoid pitfalls

·Beware of parameter inflation:Shuangli Hepu products all have third-party testing reports, and core parameters (such as spectral resolution and weight) can be traced, avoiding the selection of unverified brands.

·Value software experience:Shuangli Hepu products support wireless remote control for mobile phones/tablets, real-time preview, and come with built-in analysis algorithms to avoid the tedious data processing problems caused by "strong hardware and weak software".