216 results about "Night vision" patented technology

An ophthalmic lens configured to correct and / or treat at least one condition of the eye (e.g., presbyopia, myopia, hyperopia, astigmatism, binocular vision disorders, night vision image quality, and / or visual fatigue syndrome) comprising: a base power profile; and at least one pulse selected to modify the base power profile.

The invention discloses a low-light image target detection method based on enhanced feature fusion, and belongs to the field of computer vision and target detection. According to the method, multilayer features are extracted by using a backbone network, a bidirectional multi-scale feature pyramid and three-path convolution fusion module is designed, shallow features and transverse jump connection are introduced in the fusion process, and efficient combination of spatial details and semantic information is realized; an intra-scale Transform encoder is adopted to enhance the feature expression ability, and in a decoding stage, a deformable attention and query selection strategy is combined, so that the detection efficiency and precision are improved; and end-to-end training is realized through Hungary matching and set loss. According to the invention, real-time high-precision target detection can be realized in a low-illumination environment, and the method is suitable for night vision monitoring and intelligent sensing scenes.

The invention relates to the technical field of intelligent security and protection and intelligent old-age care monitoring, in particular to a collaborative tumble detection method based on Bayesian cognitive routing and spatio-temporal rhythm prior, which comprises the following steps: a dual-mode visual acquisition unit acquires a video stream; constructing a multi-mode tumble detection model, namely extracting video features, preliminary behavior probability distribution and statistical features from a video stream by utilizing a lightweight time sequence sensing network, calculating rhythm surprise by utilizing a neural state space rhythm model, calculating a routing activation probability by utilizing a Bayesian gating network and judging whether to intercept or not, if so, triggering the visual language large model; constructing a training mechanism of teacher-student alignment until the network converges; and outputting an identification result and executing a modal isolation data response strategy. The method has the beneficial effects that a'lightweight perception-large model rechecking 'bionic architecture is constructed, the detection precision is improved, the problems of infrared night vision and shielding are solved, false alarm and missing alarm caused by similar postures are reduced, and family privacy protection is also realized.

The invention discloses a traffic safety facility night vision evaluation method and system, and relates to the technical field of image processing, and the method comprises the steps: obtaining a to-be-evaluated traffic safety facility image; if the to-be-evaluated traffic safety facility image is the to-be-evaluated traffic sign image, determining a retroreflection coefficient of each color area of a traffic sign in the to-be-evaluated traffic sign image; based on the retroreflection coefficient and the gray value uniformity of the specific distribution area of the traffic sign, performing night vision evaluation on the traffic sign; if the to-be-evaluated traffic safety facility image is a to-be-evaluated traffic marking image, determining a retroreflection brightness coefficient of a traffic marking in the to-be-evaluated traffic marking image and gray value uniformity of a specific image area where the traffic marking is located; and performing night vision evaluation on the traffic marking based on the retroreflection brightness coefficient and the gray value uniformity of the specific distribution area of the traffic marking. The traffic safety facility night vision detection method is high in detection precision and high in reliability.

The utility model discloses a visual doorbell with a night vision light supplement function, and relates to the doorbell technology field, the visual doorbell comprises a door plate and a doorbell, the doorbell is arranged on the front end surface of the door plate, an adjusting assembly is arranged on the surface of the door plate, and five groups of positioning blocks and positioning grooves are arranged between a rotating rod and a fixed plate, so that when the rotating rod rotates in the fixed plate, the adjusting assembly is fixed on the door plate. When the rotating rod drives the infrared light supplement lamp to rotate to a needed angle through the support, the five sets of positioning blocks are aligned with the positioning grooves, the positioning blocks are pushed to slide in the sliding grooves in a reset mode through the restoring force of the sliding grooves, and therefore the infrared light supplement lamp is driven to rotate to a needed angle. The infrared light supplement lamp is arranged in the positioning groove and abuts against the inner wall of the positioning groove, so that the purpose of adjusting multiple rotation angles of the infrared light supplement lamp is achieved, the irradiation range of the infrared light supplement lamp can be adjusted according to the needs of a user, and the infrared light supplement lamp can supplement light to the doorbell in multiple time periods.

1. The name of the design product: night vision glasses (low light infrared dual light fusion AR). 2. The use of the design product: the design product is used for AR night vision observation glasses. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention provides a high-crystallinity near-infrared emission wurtzite CdS quantum dot / Zn < 2 + > modified CdS quantum dot as well as a preparation method and application thereof, and belongs to the technical field of semiconductor quantum dots. The preparation method comprises the following steps: mixing cadmium oxide, a very small amount of zinc acetate, oleic acid and octadecene, heating for degassing, heating to a reaction temperature, and adding an S-ODE precursor for reaction to obtain the zinc-modified wurtzite CdS quantum dot. The CdS quantum dots synthesized under the condition of high concentration are of a wurtzite structure and have high crystallinity, the particle size is remarkably increased, a small amount of zinc acetate is added, disordered nucleation and growth processes under a high-concentration reaction system are effectively separated through a surface adsorption process, and the monodispersed wurtzite CdS quantum dots are obtained. According to the invention, the LED device is prepared by integrating the optimized CdS quantum dots and the 450nm purple light chip, and the dual functions of visible light illumination and night vision application are realized.

The utility model discloses a device and system for detecting compactness of rock-fill concrete, the device comprises an inner pipe and an outer pipe sleeved outside the inner pipe, the length of the inner pipe is greater than that of the outer pipe, the inner pipe can be separated from the outer pipe, and the outer pipe can be connected with the inner pipe. The night vision pinhole camera can be put into a hole formed by pulling out the inner pipe after the inner pipe is inserted into the rock-fill concrete through the outer pipe which is partially exposed and partially inserted into the rock-fill concrete, and the cable is connected with the night vision pinhole camera. According to the utility model, the compactness of the rock-fill concrete can be visually monitored.

The application relates to a multi-stage electric heating intelligent unblocking device and method for complex frozen blockage of a CO2 flooding waxy crude oil gathering pipeline, wherein the multi-stage electric heating intelligent unblocking device for complex frozen blockage of the CO2 flooding waxy crude oil gathering pipeline comprises a dredging system, an outer framework and an intelligent control system; the outer framework is a bionic flexible guide pipe which is composed of multiple body segment units connected through expansion joints; the dredging system integrates a first-stage global heating system, a second-stage local heating system and a dosing system; a flexible electric heating pipe is embedded in the bionic flexible guide pipe to form a uniform heating body; the bionic flexible guide pipe is provided with a temperature sensor; the second-stage local heating system is an intelligent composite drill bit which can autonomously heat; the intelligent composite drill bit comprises a motor system, a drill bit shell, an electric heating rod, a drill bit and a miniature night vision camera; the dosing system comprises an inhibitor storage tank and multiple nozzles. The application can quickly break the frozen blockage area and realize intelligent operation.

Techniques to modify an image from a night vision camera so as to reduce smear. An example method comprises receiving at least one image from a night vision camera; modifying the at least one image, based on motion data from a tracker system and a shutter time of night vision camera, to reduce smear in the image; and outputting the modified at least one image.

The utility model relates to the technical field of vehicle safety monitoring equipment, in particular to a vehicle-mounted monitor convenient to assemble and disassemble based on an extremely weak light condition, which comprises a vehicle-mounted monitor body, an infrared night vision lens mounted at the front part of the vehicle-mounted monitor body, a bearing seat arranged at the upper part of the vehicle-mounted monitor body, and symmetrical positioning holes formed in the bearing seat, a supporting seat is clamped to the upper portion of the bearing seat, two grooves matched with the positioning holes are formed in the upper portion in the supporting seat, and clamping blocks are connected into the grooves in a sliding mode. The vehicle-mounted monitor is fixed to a vehicle through the suction cup, the supporting base and the bearing base are rapidly assembled and disassembled through cooperation of the clamping block and the push block, the angle of the monitor can be flexibly adjusted through the design of the rotating part and the damping rotating rod so that the monitor can meet different monitoring requirements, and in the extremely weak light environment, the infrared night vision lens and the light supplementing lamp work cooperatively so that the monitoring effect can be improved. According to the utility model, through cooperation of the above components, stable monitoring in a complex environment is realized.

The utility model discloses a general vehicle full -color night -vision auxiliary driving system, including multi -objective camera, individual helmet, car machine big screen and panoramic video processor, multi -objective camera all with panoramic video processor electricity is connected with individual helmet, car machine big screen, the multi -objective camera is used for gathering the image of vehicle surrounding environment, individual helmet is provided with head -mounted display, and the head -mounted display of individual helmet is used to present the image of vehicle surrounding environment after the processing of panoramic video processor, car machine big screen is used for presenting the image of vehicle surrounding environment after the processing of panoramic video processor on the vehicle. The utility model solves the problem that the imaging color of traditional vehicle night -vision auxiliary equipment is single, the detail is not clear, cannot provide panoramic visual information, is difficult to effectively integrate with vehicle system, helps the driver to be more accurate in judging the road condition under the night and complex environment, and improves driving safety and convenience.

A display screen module assembly of the present disclosure comprises, in sequence, an anti-reflection filter, a display screen, a screen heater, and an optical film group; the optical film group comprises, in sequence, a first glass, a DBEF film, a BEF film, a diffusion film, a first night vision film, a second glass, and a second night vision film. The optical module improves the backlight utilization rate. Due to the reflection of the outer surface of the display screen, the contrast of the picture will be greatly reduced, which directly affects the display effect. In order to meet the needs of surface anti-reflection and electromagnetic shielding, an anti-reflection filter is added. The screen heater is used to heat the display screen at low temperature.

The utility model discloses an electric visual explosive ordnance disposal mechanical claw, including support frame, the rear end of support frame is equipped with electric drive module, the upper end of support frame is equipped with high definition infrared night vision camera, the inside transmission of support frame is connected with the threaded rod, the front end of electric drive module is equipped with first gear and second gear, and the first gear and second gear are engaged. The utility model discloses through electric drive module drive first gear and second gear meshing rotation, thereby makes support frame whole rotation, realizes claw body electric 360 degrees all -round rotation, adjusts dangerous goods clamping posture at will, adapts complex scene explosive ordnance disposal operation, cooperates high definition infrared night vision camera, supports daytime, night, low light full -time high definition monitoring of environment, follows claw body synchronous rotation blind area, and the flexible palm face adopts buckle quick -mounting knot, and the plane, arc palm face can be replaced fast with bare hands, and one -key dismounting, and with replacement, use, and the efficiency of emergency explosive ordnance disposal operation is greatly improved.

The invention discloses a silicon-based micro-channel plate (MCP) structure and a manufacturing method thereof, relates to the technical field of semiconductor device manufacturing, and aims to solve the problems of poor high temperature resistance, insufficient etching precision, film layer quality defect and process synergy deficiency of a traditional glass-based / organic-based MCP. An 8-inch N-type monocrystalline silicon wafer is adopted in the structure, the thickness of the N-type monocrystalline silicon wafer is (250-350) + / -25 microns, micropores of 3-10 microns are evenly distributed, the hole pitch is 7-22 microns, the inclination angle is 6-12 degrees, the side wall roughness is smaller than or equal to 50 nm, the perpendicularity deviation is smaller than or equal to + / -0.5 degrees, an AlO or AlO / HfO / AlO electron multiplication layer with the thickness of 10-30 nm is prepared on the inner wall of a channel through ALD, and a Cr / Ni electrode with the thickness of 50-80 nm is plated on the surface. According to the method, the OES is used for monitoring SiFs in real time. According to the invention, the double targets of < = 30% of 1kg impact fracture rate and stable electron multiplication gain are achieved, the tolerable temperature reaches 800 DEG C, the secondary electron emission efficiency is improved by 25%, the production efficiency is improved by 20%, the cost is reduced by 15%, and the method is suitable for the high-sensitivity detection fields of night vision imaging, particle detection and the like.

There is disclosed a gated power supply for a night vision system includes an input terminal to receive source power, and output terminal to electrically couple to a photocathode, a first voltage source to source a positive or neutral voltage to the photocathode, a second voltage source to source a large negative voltage to the photocathode, and a switching circuit to switch between the first voltage source and the second voltage source on a duty cycle, wherein the switching circuit comprises an optical switch.

The application discloses a scene-based non-uniformity correction method, and relates to the technical field of image processing.The application extracts a difference area by analyzing the difference degree of a night vision system continuous image sequence, combines the information entropy of the image to evaluate the importance score of the frame, thereby identifying key frames and non-key frames; for the key frames, full-frame storage is adopted and online average calculation is performed to generate initial non-uniformity correction parameters; the non-key frames only retain difference area data, and the difference area data is locally updated based on the correction parameters of the key frames, and the correction effect is further optimized through the statistical characteristics of the difference area; the standard deviation convergence condition is dynamically adjusted to optimize the non-uniformity correction precision, and the newly-added key frames are automatically processed in the real-time image sequence, and redundant data is deleted.The application significantly improves the image processing efficiency and correction precision, reduces the redundant calculation and storage overhead, is high in adaptability, can optimize the correction parameters in real time, and is particularly suitable for efficient and accurate night vision system image processing.

The utility model discloses a mobile monitoring camera device, which comprises a quadrilateral conical cylinder and a monitoring camera, the monitoring camera is arranged at the top of the quadrilateral conical cylinder, a photovoltaic panel assembly is arranged on the outer wall of the bottom of the quadrilateral conical cylinder, a base is fixedly arranged on the outer wall of the bottom of the quadrilateral conical cylinder, and a camera is arranged on the base. A storage battery is installed in the base, and the photovoltaic panel assembly is connected with the storage battery through an inverter. The quadrilateral conical cylinder serves as a warning mark carrier and a camera supporting platform, cable laying is omitted, the limitation that traditional monitoring equipment depends on a fixed power source and a foundation is broken through, the device can be rapidly deployed to complex temporary road conditions, and the device is particularly suitable for traffic control, emergency disaster relief and other scenes needing rapid response. Visual deterrent force is formed through cooperation of the quadrilateral conical barrel and the camera, and passing vehicles or pedestrians are effectively reminded to go out safely in combination with the high-definition video recording and infrared night vision functions of the camera.

The invention relates to the technical field of computer vision and video image processing, and discloses a passive night vision full-color video image enhancement method and system based on AI learning, and the method comprises the steps: constructing a Poisson to Gaussian mixed noise model through sensor metadata, generating a signal-to-noise ratio confidence map, and quantifying the physical reliability of pixels; constructing an optical flow energy functional through a signal-to-noise ratio weighted data item and a semantic boundary constraint regular item in combination with a semantic label graph, and calculating a high-robustness optical flow field; in a time-space fusion stage, taking the signal-to-noise ratio confidence map as a gating condition, and dynamically adjusting a time domain recursion fusion proportion of historical features and current features; and finally, driving an adaptive normalization unit by using the semantic tag graph, and retrieving a semantic chrominance priori library to restore the inherent physical color of the object. According to the method, physical noise and scene semantic priori are utilized, the problems of random noise interference, motion ghosting and color loss under low illumination can be solved, and clear passive full-color night vision imaging with real color is achieved.

The invention belongs to the technical field of visual light equipment, and relates to a night visual function tester which comprises a shell and a controller, a dioptric lens and a display screen are arranged in the shell, two groups of holes are formed in the rear side of the shell, the display screen is arranged between the holes and the dioptric lens, and a compression motor is arranged on the inner side wall of the shell. The output end of the compression motor is connected with the refraction lens, eye movement tracking modules are arranged at the two ends of the front side of the shell correspondingly, and the compression motor, the display screen and the eye movement tracking modules are all electrically connected with the controller. Through forward and backward movement of the dioptric lens, the imaging distance can be adjusted from 0.1 m to infinity, and the night vision function testing device is suitable for night vision function testing of different myopic people; a Micro-oled display screen is adopted, so that the adjustment of the brightness of eyes from 0 to 3000nit is realized; the distance between the two dioptric lenses is adjusted through the interpupillary distance adjusting module, so that the centers of the dioptric lenses are accurately aligned with the pupil center of a testee, and the accuracy of a test result is improved.

The invention relates to an infrared lens, an infrared camera and a night vision traffic system, and belongs to the field of optical lenses, and a first lens, a second lens and a third lens are sequentially arranged from an object plane to an image plane along an optical axis; wherein the first lens is an aspheric lens, one of the second lens and the third lens is a metasurface lens, and the other one is an aspheric lens. According to the technical scheme, the lens size and weight of the optical system are reduced, the optical system can be conveniently integrated into a night vision traffic system, and miniaturization, light weight and integrated design is achieved.

The invention belongs to the technical field of computer vision and deep learning, and particularly relates to a nighttime unsupervised target detection domain adaptive method for multi-level domain deviation calibration, which comprises the following steps: constructing a target detection model and performing supervised training to obtain a source domain supervised pre-trained target detection model; a teacher model and a student model are initialized based on the source domain supervision pre-training target detection model; obtaining a source domain type night enhancement image according to the global-local brightness adjustment enhancement operation; inputting the target domain night image into a teacher model to obtain a target detection prediction result, and obtaining a target domain pseudo label set through an adaptive pseudo label screening method; constructing a mixed domain image, inputting the mixed domain image, the source domain night enhanced image and the target domain night image into a student model, calculating category feature comparison loss, supervised detection loss and unsupervised detection loss, and carrying out student model parameter updating; night target detection is carried out through the trained teacher model; the method is suitable for various practical application scenes of night visual perception.

The invention discloses a novel reinforced mini LED backlight liquid crystal display module which comprises a front shell, protective glass, an attaching adhesive layer, a liquid crystal display screen, a structural supporting frame, a polarized light brightness enhancement film, a microstructure diffusion film, a heat dissipation plate and a PCB control panel and is characterized by further comprising a multifunctional controllable dimming plate, a side-in type backlight light bar and a mini LED backlight plate. The polarized light brightness enhancement film, the microstructure diffusion film, the multifunctional controllable dimming plate and the mini LED backlight plate are sequentially attached and stacked from top to bottom in the vertical direction and located in the structure supporting frame, the mini LED backlight plate is located above the heat dissipation plate, and the side-in type backlight lamp strip is vertically fixed to the side wall of the structure supporting frame and makes contact with the multifunctional controllable dimming plate. The multifunctional controllable dimming board is used for realizing liquid crystal dimming under the control of the PCB control board. According to the invention, night vision compatibility and optical film material reinforcement treatment can be realized.

The invention discloses an image enhancement method, device and equipment based on local feature superposition and weighted fusion, and relates to the field of computer vision and image processing, an initial night vision image is segmented into a plurality of image sub-blocks, and local targeted processing is realized; performing illumination extraction operation of adaptive edge protection on each image sub-block, separating illumination components, accurately protecting edge information at the same time, and avoiding edge blurring; initial reflection component separation operation is carried out through a Retinex model, and an adaptive contrast adjustment factor is introduced for enhancement to obtain a target reflection component set, so that reflection component enhancement is more accurate; performing multi-scale wavelet decomposition operation on each image sub-block to obtain a low-frequency component and a weighted high-frequency component so as to realize targeted processing of the structure and details; and carrying out nonlinear fusion on the target reflection component set, the low-frequency component and the weighted high-frequency component of each image sub-block to obtain an enhanced night vision image, and improving local contrast while avoiding brightness imbalance under complex night vision illumination.

The invention discloses a zero-light-supplement real-time full-color night vision imaging system based on multispectral fusion. The system comprises a multispectral imaging module, an AI image fusion processing module, a dynamic scene sensing module and a full-color image output module. The multi-spectral imaging module synchronously collects visible light and invisible light images of the same view field, and central axes of light paths coincide to ensure that the view fields are consistent; the AI image fusion processing module dynamically allocates weights based on the scene feature library to fuse multiband images; the dynamic scene sensing module monitors ambient light and a moving target and feeds back to adjust fusion logic; and the full-color image output module generates a full-color image conforming to human eye habits through color mapping. The system does not need active light supplement, real-time full-color night vision imaging is achieved, and the security monitoring night effect is improved.

The present invention discloses a display calibration mechanism for enabling a thermal imaging picture to be aligned with a low-light-level picture on a low-light-level night-vision device, including a base and an adjustment assembly, wherein the base is provided with an imaging member and a display, and the thermal imaging picture on the display and the low-light-level picture on the low-light-level night-vision device are simultaneously imagable on the imaging member, The present invention further discloses an externally-hung thermal imaging device. The adjustment of the relative positions of the thermal imaging picture and the low-light-level picture can be realized to ensure the imaging effect while improving the universality of the thermal imaging device itself.

The utility model provides a digital display wireless electronic alarm clock with a night vision effect, which relates to the technical field of digital display wireless electronic alarm clocks and comprises a shell, side plates are mounted on two sides of the shell, a front plate is fixedly connected to one side of the shell, a display screen is fixedly embedded in the front plate, a clamping frame is arranged on one side of each side plate, and the clamping frame is fixedly connected with the front plate. A blocking frame is arranged between one sides of the two clamping frames, a groove is formed in one side of the blocking frame, and a fixing hole is formed in one side of the blocking frame. According to the utility model, the groove on the blocking frame is limited through the two clamping frames, so that the blocking frame can be taken out along the direction of the clamping frames, and the blocking frame can be tightly attached to the front plate through the matching of the clamping frames and the groove, so that the clamping frames and the front plate are arranged in front of the display screen in a sealing and sliding manner; therefore, the blocking frame is convenient to install and fix at the same time, and the transparent glass fixed in the fixing holes in the blocking frame can be dismantled and installed along with dismantling of the blocking frame.

The invention relates to a power transmission line standing tower type channel three-dimensional early warning device and method. A starlight-level night vision camera, a differential GNSS acquisition module, a tweeter, an electric holder, a three-dimensional laser radar, a power supply module and a communication module are all connected with a control module, and the communication module is connected to a background server. The storage battery and the solar cell panel are connected to the power supply module. The early warning method comprises the following steps: S1, issuing an instruction; s2, image acquisition; s3, analyzing hidden dangers; s4, issuing a three-dimensional laser point cloud data acquisition instruction; and S5, performing early warning analysis and warning. According to the invention, accurate distance measurement and timely early warning can be carried out on construction and external damage hidden dangers in a power transmission line channel, equipment power consumption is reduced, equipment service life is prolonged, and on-site operators are reminded to pay attention to construction safety.