35 results about "Infrared photography" patented technology

The invention relates to an embedded type door control work attendance checking machine with the function of face recognition, which belongs to the technical field of biological characteristic recognition. The door control work attendance checking machine adopts the technical scheme that an embedded type host DSP is used, and the machine comprises a CMOS infrared photography module used for capturing facial images, an infrared Led Module used as a constant light source, a Wiegand interface and a USB interface; besides, infrared light filters with narrow bands are arranged on the camera shot of the CMOS infrared photography module, and the band width of the infrared light filters with narrow bands only allows near infrared light emitted by the infrared Led Module to pass through and shields visible light and other kinds of infrared light in the sunlight; the DSP presents the simulated generation of door control Wiegand signals by an IO interface and is used as a standard output control means for door control. The machine adopts the infrared light filters with narrow bands and the infrared Led Module to thoroughly solve the problem of visible light influence, which troubles face recognition for a long time, and the machine has the advantages of unique convenience, untouchable performance and stability and can be widely applied to the field of door control work attendance check.

The invention relates to a method for enabling an infrared photography device to adapt to light, which comprises the following steps: firstly, presetting a shading object whose shading quantity can be adjusted on the surface of an image sensor of the infrared photography device, when the light intensity of the infrared photography device in a shooting scene, which is obtained from the measure of a photoreceptor or analyzing a pre-shot image by an analyzing unit, exceeds the preset value, confirming the ratio of the occupied area of a to-be shot object in the to-be formed image according to the focal distance of the infrared photography device, the clear and visual distance range of a corresponding lens, the optimum distance for imaging of the to-be shot object, then adjusting the shielding object according to the ratio and enabling the object to cover the corresponding part of the image sensor, which enables the uncovered part of the image sensor to induct infrared light reflected by the to-be shot object, thereby forming a corresponding clear image, preventing the defect of unclear images due to too strong light, reducing the monitoring risks exist in an existing infrared photography device for monitoring.

The invention discloses a tunnel three-dimensional modeling system and method based on a depth camera lens. The system comprises a depth camera lens device and a rotary apparatus, the depth camera lens device comprises a microphone assembly, an infrared camera, a color camera and an infrared camera lens, the depth camera lens device is arranged on the rotary apparatus, the depth camera lens device is driven by the rotary apparatus to rotate 180 degrees in the vertical direction, and images of upper half circle of a tunnel are collected; an angle transducer is arranged on the rotary apparatus and used for detecting the rotation angle of the rotary apparatus, and at the same time, an elevation controller is arranged on the rotary apparatus and used for controlling the acquisition angle of the depth camera lens device. According to the tunnel three-dimensional modeling system and method based on the depth camera lens, through the analysis for tunnel relevant color information, overall terrain conditions such as joint and fissure in the tunnel can also be observed, and therefore more targeted scientific construction is carried out.

The invention provides an infrared photography-based bio-feature 3D four-dimensional data identification method and system. The method comprises the steps of preprocessing 2D color images collected for a target organism by one or more zoom color cameras and an infrared image collected for the target organism by a depth infrared camera to obtain spatial point cloud information of the target organism in a given time, performing registration and fusion to obtain 3D data of the target organism in the given time, and finishing model rebuilding; forming a database by taking identity information of the organism as an identification mark; and finding bio-feature 3D four-dimensional data stored in the database by utilizing the identity information of the target organism, and performing corresponding point cloud comparison to identify an identity of the target organism. According to the method and the system, the 2D high-definition color images of the color cameras and depth 3D information collected by the depth infrared camera are subjected to the registration and fusion, so that the extraction of feature points is reduced, the complexity of an algorithm is lowered, and the rebuilding precision and efficiency are improved.

A camera module for both normal photography and infrared photography comprises: an optical filter unit for selectively transmitting either infrared rays or visible light; an angle-of-view changing unit for narrowing the angle of view by refracting the infrared rays when the infrared rays pass through the optical filter unit, and transmitting the visible light without changing the angle of view when the visible light passes through the optical filter unit; and an image sensor for generating a normal image when the visible light is incident thereto and generating an infrared image when the infrared rays are incident thereto.

The invention relates to an early warning terminal and system used for analyzing dangerous driving behaviors and an analysis algorithm. The early warning terminal comprises an infrared photography acquisition module used for obtaining data streams of the closing state of the eyes, the opening and closing state of the mouth, the blocking state of the ears and the gesture state of a steering wheel area, a thermal inductance data acquisition module used for obtaining data streams of the moving position of the human face, cigarette butt heat existing on the mouth or not, arm heat existing on an ear area or not and the number of the arms on the steering wheel area, a binocular three-dimensional photography acquisition module used for obtaining data streams of the gesture motion state, and a centralized control module obtaining a detection result through multi-dimensional data analysis. The early warning system comprises the early warning terminal used for analyzing the dangerous driving behaviors and a backstage multi-dimensional analysis platform, wherein the backstage multi-dimensional analysis platform receives and stores pictures snapped by the driving behavior early warning terminal and analyzes the driving behaviors through a deep learning neural network model.

The invention discloses a binocular infrared photography-based bus passenger flow counting device and method. The binocular infrared photography-based bus passenger flow counting device comprises a calculation apparatus, an infrared camera A, an infrared camera B and a counting display apparatus, wherein the infrared camera A and the infrared camera B are located in two different positions above a photographed point respectively; and the calculation apparatus collects videos from the infrared camera A and the infrared camera B in real time. The method comprises the steps of running a binocular vision algorithm by the calculation apparatus; calculating depth information of points on images from the two different cameras; drawing a contour line; extracting a human head quantity contained in the image in combination with human head shapes and priori knowledge of a distribution law of the contour line, wherein the extracted human head quantity is within a predetermined time; and tracking the human head quantity by the infrared camera A or the infrared camera B. According to the counting device, the statistical precision is improved and the situations that human head identification rate is low and children are shielded due to insufficient light are avoided.

The invention provides drifting roe monitoring equipment and a cascade reservoir dispatching method for improving hatchability. The drifting roe monitoring equipment comprises a bottom plate for supporting and installing the whole equipment, wherein the top of the bottom plate is fixedly provided with a double-layer shell; the two ends of the bottom of the bottom plate are provided with flow velocity monitoring devices for monitoring flow velocity; a main infrared photographing device and a standby infrared photographing device are arranged on the bottom layer of the double-layer shell; a glass cover cleaning device used for cleaning the main infrared photographing device and the standby infrared photographing device is installed in the middle of the bottom layer of the double-layer shell in a suspended mode; the upper layer of the double-layer shell is provided with a flow velocity data memory and an infrared photography data memory; the top of the double-layer shell is provided with a top hook; the side wall of the double-layer shell is provided with side hooks which are symmetrically arranged; and a drainage device is arranged in the bottom plate. The problem that the drifting roes sink to the bottom and are dysplastic and even die in the technical background is solved, and the hatchability of the drifting roes at the downstream of the cascade reservoir is increased.

The invention provides a transformer fault detection device based on an infrared imaging technology. The transformer fault detection device comprises a remote server, a cruise track, a protective cover, a terminal control box, a mobile shooting mechanism and shooting trigger mechanisms. The cruise track is arranged around the periphery of a transformer, and the mobile shooting mechanism is installed on the cruise track. The protective cover is installed on the cruise track, the terminal control box is installed on the protective cover, and the shooting trigger mechanisms are installed at eachmonitoring point on the cruise track. According to the transformer fault detection device, the cruise track is arranged around the periphery of the transformer by using each track supporting structure, so that the mobile shooting mechanism can shoot around the transformer, the transformer can be rapidly and comprehensively detected, and the fault diagnosis time is prevented from being delayed; andthe shooting trigger mechanisms are installed on the cruise track, so that infrared photography can be conveniently carried out at each key detection position according to monitoring requirements, and the transformer fault detection device has better adaptability on field installation.

Provided is an identity recognition method of long-distance infrared photography. The recognition method comprises following steps of: firstly, extracting and recognizing gait characteristics, fixing the position of a camera, making a shooting angle vertical to the walking direction of an object to the shot such that an outline image of a standard side surface is extracted from walking sequences of video shooting; secondary, calculating gait periods and calculating oscillation distance of each side-surface outline image of one walking sequence; and thirdly, calculating instantaneous gait energy map, uniformly designating one moment as a critical moment in each gait period and naming each critical moment as an instantaneous photo. The identity recognition method of long-distance infrared photography has following beneficial effects: the identity recognition method is much simpler than biological recognition technology and has better adaptability of low-quality side-surface outlines; and the method helps prevent crime.

The invention discloses an intelligent unmanned aerial vehicle privacy peep-proof method and system based on infrared photography. The method comprises the following steps: if a privacy protection instruction is received, controlling a suspension unmanned aerial vehicle to start and controlling an unmanned aerial vehicle camera to capture an unmanned aerial vehicle image in real time, controllingan illuminance sensor to be started to acquire illuminance information of the environment in real time and analyze whether the suspension unmanned aerial vehicle is located in the room in real time; if so, analyzing whether the illuminance in the room is lower than the preset illuminance or not; if yes, analyzing human body information in a room where the suspension unmanned aerial vehicle is located in real time, and analyzing whether unbound human bodies exist in the room or not; if not, controlling a filter camera to shoot an infrared photographic image in real time and controlling the suspension unmanned aerial vehicle to patrol around the interior of the room; recognizing room information contained in the infrared photographic image in real time through an image recognition technology, analyzing whether light spots are contained in the infrared photographic image or not in real time, and if yes, transmitting the infrared photographic image containing the light spots to a user terminal, and conducting key identification reminding on a light spot area.

A method of locating lead goose neck pipes connected between a water main and a water service line buried under a surface comprising, using infrared (IR) photography to scan the surface above the buried pipes; wherein the water main and water service lines are constructed of a metal having a higher thermal conductivity than lead; and determining the presence of lead by differences in surface temperatures of the lead pipe and the water main and/or the service line as indicated by the infrared photography.