1172 results about "Thermographic imaging" patented technology

The invention relates to a leakage source detecting device based on infrared thermal imaging processing, and the leakage source detecting device comprises an infrared thermal imaging camera and a microprocessor, wherein the microprocessor is used for analyzing, processing and judging damage conditions, leakage points, leakage zones and leakage degrees of walls of buildings or containers according to the thermal images, shot by infrared thermal imaging camera, of the walls or containers and relative input information, and the infrared thermal imaging camera is used for scanning a preprocessed detected object so as to obtain the temperature distribution information of the surfaces of the walls or the containers. The software of the microprocessor mainly comprises an infrared thermal imaging acquiring unit, an infrared thermal imaging preprocessing unit and a leakage quantitative detecting unit, and the software of the microprocessor analyzes the temperature field to the object to be detected through a digital image processing technology to judge whether the object to be detected has the defect of leakage or not. The leakage source detecting device provided by the invention can be used for not only rapidly detecting the existing of the leakage defect, but can also accurately detecting the leakage zone and degree and the influence scope. The leakage source detecting device provided by the invention provides an assessment method for leakage defects.

The invention is a video frequency real-time displaying control device for infrared heat imaging image and visible image. The device includes a computer, an infrared heat imaging device, visible camera whose field angle can match with it; there has a video collecting card on the interface slot of the computer, the infrared image device and the visible camera are fixed on the same platform; there stores control, temperature measuring, image processing and displaying procedure model, it can remote control the platform, the infrared heat device and the visible light camera, they can be rotated synchronously, the field angles of the posterior two match, and makes the heat imaging image and the visible light image can coincided with the coordinate of the computer monitor. The invention can carry on real-time memorization, displaying, imaging, and playbacks the heat imaging image and the visible light image, it also can display the temperature valve and position coordinates of the object, it also has merits of infrared imaging and visible light image.

Thermographic or photothermographic image recording elements comprising (a) a reducible silver salt, (b) a reducing agent, (c) a binder, (d) a specific phthalazine derivative and (e) an organic acid compound experience a minimized drop of image density when stored under warm humid conditions.

Systems and methods for detecting presence and movement of pests. Various embodiments of a pest detection system can be based on, for example, a beam-interrupt detector or a thermal imaging device. The beam-interrupt detection based system can provide functionalities such as counting of pests crossing a given beam. A plurality of such beams at different heights can also allow distinguishing different sized pests. The thermal imaging based detection system can provide functionalities such as tracking movement of pests. A recording can be triggered by detection of pest movement, thereby improving the efficiency of recording and reviewing information indicative of presence and movement of pests in a monitored area. Movement of pests can be monitored on a passive basis, or by providing a stimulus that induces movement.

A pulse controller device for controlling the excitation of a heat source used in thermographic imaging is disclosed. The pulse controller device comprises a power supply, a heat source coupled to the power supply, a device coupled to the power supply signaling the power supply to deliver electrical power to the heat source, a sensor for sensing the delivery of electrical power to the heat source, a flash duration module coupled to said sensor for measuring a duration of time, and a gate device coupled to said flash duration module for gating the electrical power utilized by the heat source. A method for thermographically evaluating a sample is also disclosed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

A method and apparatus of correcting thermally-induced field deformations of a lithographically exposed substrate, is presented herein. In one embodiment, the method includes exposing a pattern onto a plurality of fields of a substrate in accordance with pre-specified exposure information and measuring attributes of the fields to assess deformation of the fields induced by thermal effects of the exposing process. The method further includes determining corrective information based on the measured attributes, and adjusting the pre-specified exposure information, based on the corrective information, to compensate for the thermally-induced field deformations. Other embodiments include the use of predictive models to predict thermally-induced effects on the fields and thermographic imaging to determine temperature variations across a substrate.

A thermographic substrate assembly comprised of a colorant and a flexible substrate. This assembly also contains a thermosensitive layer, and the thermosensitive layer contains a binder, a multiplicity of hollow sphere organic pigments, and a thermal solvent.

Material testing under variable heat and load while continuously monitoring crack formation is provided using an apparatus that permits thermal control somewhat uniformly over a conductive sample, while permitting a controlled load to be applied to the sample in tensional or flexural modes. Thermographic imaging of a sample in situ within a standard thermo-mechanical fatigue (TMF) test rig or other heat and load test apparatus is used to detect and monitor cracks as they form. A 360° sample view is possible. Image analysis software may identify, count and/or characterize cracks. Thermographic images may be analyzed to determine a sample temperature, e.g. for temperature feedback control. Essentially passive thermography is used with an inductive heating coil that surrounds at least 60% of a length of the sample, with at least two windings, the windings having thickness and pitch so that at least half the sample is in view.

Thermographic imaging equipment is incorporated directly into cabinets housing electrical switchgear to provide for dedicated, nearly continuous monitoring of the contained equipment. A mechanical scanning technique may allow low-cost sensors to provide essentially continuous thermographic monitoring. Dedicated thermal imaging equipment allows automatic analysis through predefined temperature threshold maps.

A system for determining presence or absence of one or more thermally distinguishable objects in a living body is disclosed. The system comprises a combined image generator configured for combining non-thermographic three-dimensional data of a three-dimensional tissue region in the living body with thermographic two-dimensional data of the tissue region so as to generate three-dimensional temperature data associated with the three-dimensional tissue region. In a preferred embodiment the combined image generator comprises a computing device configured for calculating the location and/or orientation of the thermally distinguishable object in the three-dimensional tissue region, based on the three-dimensional temperature data.

The invention discloses an online thermal distribution image predicting method, and belongs to the technical field of fault detection and diagnosis. The online thermal distribution image predicting method is characterized by being a method for performing thermodynamic analysis on changes in heat distribution, giving a prediction and synthesizing a vivid heat distribution image through finite element analysis measures, digital image processing, thermodynamic theories and thermal imaging simulation based on an infrared imaging technology under the condition that heat source parameters are uncertain. According to the method, the thermal dynamic features within the heat distribution image are widely applied to the infrared imaging technology; and in the field of temperature monitoring and temperature prewarning, a temperature change trend is predicted, and even through dynamic numerical features in the heat distribution image, a temperature change characteristic in a future time domain is quantitatively given, so that the temperature prewarning time is further advanced, precious time is saved for equipment repair, the production safety is further ensured, considerable economic benefits are brought to an enterprise, and a certain contribution is made to the state development.

The invention provides a body temperature correction method and device and electronic equipment, and relates to the technical field of infrared temperature measurement. The method comprises the steps:obtaining a reference image frame pair which is collected by a camera group and is formed by a visible light image frame and a thermal imaging image frame; performing pedestrian detection on the visible light image frame, and determining a candidate reference image frame pair containing the target person and a positioning area of the target person in the candidate visible light image frame of thecandidate reference image frame pair according to a detection result; determining a positioning area of the person in the thermal imaging image frame according to the space-time corresponding relation between the visible light image frame and the thermal imaging image frame and the positioning area of the target person contained in the visible light image frame; determining the initial temperature of the target person according to the pixel value of the target person in the positioning area in the candidate thermal imaging image frame; and correcting the initial temperature based on the distance information between the target person and the thermal imaging camera to obtain the body temperature of the target person. According to the invention, the accuracy of body temperature measurement and correction can be effectively improved.

The invention discloses a double-spectrum camera. The camera comprises an infrared imaging module, a visible light imaging module and an image synthesis module, wherein the infrared imaging module collects thermal imaging image sequences in a monitoring area; the visible light imaging module collects visible light image sequences in the monitoring area; and the image synthesis module is used for identifying a target area in the thermal imaging image sequences in the monitoring area and carrying out data fusion on the thermal imaging image sequences of the target area and the visible light image sequences of a same moment so as to generate a fusion image sequence in the target area. The infrared imaging module identifies a suspected target area in the monitoring area so that the visible light imaging module follows an identification result of the infrared imaging module in real time and a monitored visual angle of the visible light imaging module keeps consistent with a monitored visual angle of the infrared imaging module. A definition of monitored details in the target area is guaranteed and real-time detection and tracking can be realized.

The invention discloses a building facing layer debonding defect identification method based on an unmanned aircraft thermal imaging video. The method comprises the following steps that: 1) accordingto a set air line, carrying out video recording on a building elevation facing layer, and obtaining an infrared thermal imaging video of which the building elevation is integral; 2) forming a facing layer debonding defect semantic segmentation dataset; 3) on the basis of a Deeplab network, constructing a building exterior wall facing debonding defect identification semantic segmentation network, and utilizing the dataset in 2) to train to obtain a facing layer debonding defect infrared image semantic segmentation model; 4) utilizing the semantic segmentation model obtained in 3) to analyze a facing layer detection video, and segmenting and extracting a debonding defect shape; 5) carrying out calculation to obtain the practical area of the facing layer debonding; and 6) labeling the debonding defect, and forming a building elevation facing layer detection result map. The method is simple in operation and has a high automation degree, the quick, efficient and full coverage detection of the building facing layer debonding defect can be realized, and public safety can be guaranteed.

Silver-free, aqueous-based direct thermographic materials are designed to have image tone with near neutral density. Without the use of organic silver salts containing reducible silver ions, the image is formed using a color developing agent precursor that releases a color developing agent when heated to a temperature of at least 80° C., a combination of cyan, yellow and magenta dye-forming color couplers that provide cyan, yellow, and magenta dyes, and a substituted or unsubstituted benzoquinone as an oxidizing agent. No silver metal or silver ions are purposely added to these materials. This combination of components provides a means for controlling image tone without reliance upon conventional toning agents.

Techniques are disclosed relating to gas leak detection. The techniques can be deployed, for example, in compact, handheld portable devices usable for detecting leaks in space-confined applications. The devices generally include a non-laser light source and thermal imaging camera that allow for detection of a target gas (or gasses) that absorbs at least some of the light source's wavelengths of operation. The light source can be implemented, for example, with an incoherent infrared (IR) light source, such as a resonance lamp configured with a gas cell containing a volume of a gas that, when excited by electric discharge, emits a wavelength that is absorbed by the target gas.