12 results about "Visible infrared" patented technology

The utility model provides a kind of multispectral collaborative imaging structure, comprising: light source device, object carrying device and imaging device;The imaging device is movable imaging device.For the limitation of prior art, it is difficult to meet the technical problem of efficient, accurate multi-band collaborative test, the utility model can carry out ultraviolet-visible-infrared multi-band imaging to object simultaneously, and the device of standardized process provides more faster and accurate qualitative spectral test method;Greatly reduce the test error caused by human operation.

A visualizer for use with an immunoassay rapid diagnostic test (RDT) with fluorescent probes includes a housing sized to enclose the RDT, an opening in the housing for insertion of the RDT, a viewing window in the housing positioned to align with a result window in the RDT when inserted in the housing, a UV / visible / infrared light source inside the housing for illuminating fluorescent probes in the result window so they may be viewed through the viewing window, and a switch for activating the light source. An RDT incorporating a UV / visible / infrared light source within its housing is also disclosed.

The application is based on electrochromic material technology, and particularly relates to an electrochromic visible-infrared response super surface film and a preparation method thereof. The preparation method comprises the following steps: step-by-step magnetron sputtering, depositing a conductive layer, tantalum pentoxide and tungsten oxide film on a substrate in sequence to form a device bottom electrode, a dielectric layer and an electrochromic layer; based on a mask, the film is subjected to a gluing-photolithography process, the electrochromic layer is etched by an argon ion beam to realize super surface pattern preparation; and the film is subjected to an annealing process in an air atmosphere to crystallize the tungsten oxide layer. The application has good visible-infrared compatible response performance, and simultaneously realizes visible color change and high variable emissivity in an infrared wave band (2.5-15 mu m).

This invention provides a multimodal simulated shooting training system and method. The system is compatible with multiple target types and shooting training modes, and can be rapidly deployed on both mobile and fixed target drones. The system includes: establishing a communication connection between the target reporting terminal and the target surface sensing array and the invisible infrared laser emitting device to generate training configuration records and training session status; collecting target surface hit data and gun end action data and unifying the timestamps, establishing an alignment window to match the hit time and generate shooting event records; calculating the target type mapping of the spot coordinates based on the target type in the training configuration record using target type mapping rules to obtain the hit result and generate a target reporting result; generating trajectory rendering results and new and old bullet hole markings in trajectory mode; extracting action feature sets based on the shooting event records and calculating shooting deviations; and issuing a prohibition shooting command when the prohibition conditions are met.

This invention relates to the field of pedestrian re-identification technology, providing an unsupervised visible light and infrared pedestrian re-identification method based on structure-aware metrics. The method includes extracting visible light and infrared features using a feature extractor, extracting initial pseudo-labels for these features using an unsupervised clustering algorithm, performing intra-modal optimization on the initial pseudo-label set, constructing a weighted bipartite graph to calculate inter-class consistency connectivity scores and average similarity to obtain a cost matrix, and inputting this matrix into an optimal transfer algorithm to obtain cross-modal identity pseudo-labels. The method also involves constructing a visible light memory database, an infrared memory database, and a bidirectional hybrid modal memory database, optimizing the feature extractor through comparative learning loss and memory database momentum updates, and performing pedestrian re-identification. This invention improves the accuracy of visible-infrared identity association in unsupervised scenarios and enhances the ability of neural network models to retrieve pedestrians during the day and night in surveillance systems without requiring training with real labels.

This invention relates to the field of visible-infrared cross-modal pedestrian re-identification, and particularly to a visible-infrared pedestrian re-identification method based on personalized perception matching and optimization. The method includes: Step S1: acquiring unlabeled cross-modal pedestrian images and extracting image features; Step S2: constructing regular clusters and compact clusters; Step S3: performing homogeneous identity comparison learning based on the centers of the regular clusters; Step S4: constructing a personalized perception matching module; Step S5: constructing a personalized perception optimization module; Step S6: jointly optimizing the image encoder and completing cross-modal re-identification. This invention can fully mine personalized information within clusters without manual identity labeling, improve the reliability of cross-modal matching, and enhance the model's ability to express modality-invariant and identity-related features.

A mid-infrared anti-counterfeiting thin film structure includes a substrate and a multilayer film structure disposed on the substrate. The multilayer film structure, from bottom to top, comprises a high-reflectivity metal layer (≥100 nm), an infrared pattern medium layer (0-500 nm), a visible-infrared decoupling layer (approximately 70 nm), and a structural color forming medium layer (20-300 nm). The high-reflectivity metal layer, the infrared pattern medium layer, and the infrared-visible decoupling layer constitute an antisymmetric Fabry-Pérot resonant cavity. The mid-infrared resonance peak is modulated by changing the thickness of the medium layer. The infrared-visible decoupling layer exhibits high infrared transmittance and high visible reflectance, achieving dual-band decoupling. It, together with the structural color forming medium layer, forms an antisymmetric FP cavity, generating a visible structural color pattern. This invention achieves mid-infrared high / low emissivity switching through thickness differences, forming a clear pattern under infrared thermal imaging while simultaneously displaying structural colors under visible light, thus realizing dual-band decoupling anti-counterfeiting.

The application discloses a visible-infrared joint image defogging method based on pseudo-infrared generation and semi-supervised optimization, which comprises preparing a training set and a test set of a MID data set. The method firstly constructs a pseudo-infrared generation network to predict a single-channel pseudo-infrared structural feature map from a foggy visible light image; then a double-branch defogging network comprising a visible light branch and an infrared branch is constructed, and cross-modal feature fusion is realized through an infrared guided feature weighting fusion module, so as to enhance the image structural information expression capability. In the training stage, a teacher-student consistency constraint mechanism is introduced for semi-supervised optimization, and the teacher network parameters are updated through an exponential moving average, and a color calibration module is arranged at the network output end to reduce color deviation. In the inference stage, when there is no real infrared image input, the pseudo-infrared generation network is used to provide structural information and input into the defogging network to complete image restoration, so as to improve the image defogging effect under a complex fog and haze environment.

The utility model discloses a powder press hopper liquid level alarm device, alarm device includes material cylinder cover, be equipped with quick fixture and detection mechanism on material cylinder cover, quick fixture fixed mounting on material cylinder cover, the top of material cylinder cover is equipped with the notched, and detection mechanism can detachable mounting on the notched, and detection mechanism passes through quick fixture locking, detection mechanism includes invisible infrared sensor, and invisible infrared sensor installs below sensor fixed plate, and invisible infrared sensor is embedded in the notched. The powder press hopper liquid level alarm device provided by the utility model is firm, and simple and quick to dismount, and the material cylinder is cleaned simultaneously, and it has good sealing property, can guarantee that the material in material cylinder is not polluted.

The application provides a complementary electrochromic device, which comprises a first conductive substrate, an electrochromic film layer, an electrolyte layer and a second conductive substrate arranged in sequence; the electrolyte layer comprises reversible deposition ions. Compared with the prior art, the application firstly introduces the reversible deposition / dissolution reaction between metal ions and metal oxides into the electrochromic device, and uses the reversible deposition / dissolution reaction as a charge release / storage medium of the device, effectively solves the problem that the electrochemical process of the traditional counter electrode material (such as nickel oxide, prussian blue, etc.) does not match the electrochromic film layer, and realizes a stable cycle of 5000 times. Further preferably, by reasonably selecting and matching the electrochromic film layer, the electrolyte layer and the protective electrode layer, the electrochromic device with the ultraviolet-visible-infrared full-spectrum modulation performance and high cycle stability can be realized.

A wavelength-selective visible-infrared compatible stealth film, its fabrication method, and an optical window assembly are disclosed. The film comprises, from bottom to top, a polyimide substrate (200-500 nm), a silicon oxide support layer, an indium tin oxide (ITO) functional layer (140-160 nm), and a polyimide emitting layer (600-700 nm). The polyimide substrate, silicon oxide support layer, and ITO layer constitute a Fabry-Perot interferometer cavity. Dynamic control of the structural color in the visible light band is achieved by adjusting the thickness of the polyimide substrate. The ITO functional layer reflects infrared radiation through a plasma effect in the 3-14 μm band and achieves low infrared emissivity in the 3-5 μm and 8-14 μm detection bands. The polyimide emitting layer utilizes characteristic vibration absorption in the 5-8 μm non-detection band to achieve selective thermal radiation heat dissipation. The thin film of this invention has emissivity of 0.19 and 0.21 in the 3-5μm and 8-14μm bands, respectively, and emissivity of 0.54 in the 5-8μm band; visible light transmittance >80% and ultraviolet shielding rate >70%; it has dynamic structural color camouflage; and excellent temperature resistance, making it suitable for optical window stealth.