41 results about "Infrared imagery" patented technology

Near infra-red images of natural scenes usually have better contrast and contain rich texture details that may not be perceived in visible light photographs. The contrast and rich texture details form a NIR image corresponding to a visible light image are useful for enhancing the visual quality of the visible light image. To enhance the visual quality of a visible light image using its corresponding near infra-red image, a computer-implemented method computes a weight region mask from the visible light image, transfers contrast data and texture data from the near infra-red image to the visible light image guided by the weighted region mask. The contrast data is computed from the low frequency subbands of the visible light image and corresponding infra-red image after a wavelet transform by matching the histogram of gradient magnitude. The texture data is computed from the high frequency subbands of both images after wavelet transform.

The invention relates to a leakage detection and location method and a system thereof based on infrared imaging technology, belonging to the detection technology field. The leakage detection and location system comprises a control device, an infrared imagery device, a cooling device, a sensing unit, an air charging system and a display device. Gas with certain pressure is cooled by the cooling device to be used as test medium, each value is driven by the control device to implement aeration completion timing control on a measured object, and the system state is detected by the sensing unit, a infrared picture of the measured object is collected by the infrared imagery device and then transmitted to the control device to undergoing a series of image processing operations for analysis, leakage amount calculation and leakage point location, the test results is showed on the display device. The invention has high detection precision, high-efficiency for leak point locating, strong anti-interference ability and can take non-contact automatic measurement.

The invention comprises a method for detecting, distinguishing and locating an infrared imagery sea-surface target, which comprises the following steps: (1) detecting a remote target: firstly, a remote real-time image is preprocessed by restraining background and noise, and then is segmented so as to extract a plurality of suspected target areas; segmentation threshold is corresponding gray value of inflection points which firstly appear in a grayscale column diagram of the real-time image; and finally a suspected target is extracted in each suspected target area and compared with a corresponding target module so as to screen out the target; (2) locating points of interest of a close-range target: firstly, a close-range real-time image is segmented so as to extract the target; a target locating shaft is obtained by utilizing standardization central moment information of the target; the target locating shaft direction is determined by distinguishing the head an the tail end of the target locating shaft, and further the points of interest of the target are located. The method has small computation workload, good real-time, high detection rate and the capability of image blur resistance, sea surface islands resistance and other man-made target interference resistance, and can be applied to a high speed maneuvering platform for detecting the target against the background of complex sea surfaces and distinguishing and locating the points of interest of the target.

What is disclosed is a novel system and method for determining the number of objects in an IR image obtained using an IR imaging system. In one embodiment, a total of N intensity values are collected for each pixel in an IR image using a IR imaging system comprising an IR detection device and an IR Illuminator. Intensity values are retrieved from a database which have been estimated for a plurality of known materials, such as skin and hair. A classification is determined for each pixel in the IR image using either a best fitting method of a reflectance, or a correlation method. Upon classification, a total number of objects in the IR image can be determined. The present system and method finds its intended uses in of real world applications such as, determining the number of occupants in a vehicle traveling in a HOV / HOT lane.

Interfusion between radar image and infrared imagery in pixel level is carried out for complicated city zone by using principal component analysis method. Through combination of back propagation artificial neural network (BP-ANN) and genetic algorithm (GA), BP-ANN / GA hybrid algorithm is built up. By using ability of global optimization of GA algorithm, the method optimizes initial weight value of BP-ANN, overcomes disadvantages of slow convergence rate of traditional BP-ANN, and easy of getting into local minimum so as to increase speed for automatic sorting remote sensing images from multiple sources and accomplish sort for characters of ground objects.

The invention relates to an infrared light image and visible light image fusion method based on interactive non-local average filtering. The method mainly aims to solve the problems that a fused image obtained through an existing infrared light image and visible light image fusion method is low in definition, contrast and spatial resolution. The method comprises the implementation steps of (1) carrying out interactive non-local average filtering on an input infrared light image and an input visible light image to obtain base layer images; (2) subtracting the corresponding base layer image from the infrared light image to obtain a detail image of the infrared light image, and subtracting the corresponding base layer image from the visible light image to obtain a detail image of the visible light image; (3) calculating the neighboring window statistical characteristics of the detail images to obtain a fusion weight plot of the infrared light image and a fusion weight plot of the visible light image; (4) enabling the fusion weight plot of the infrared light image and the fusion weight plot of the visible light image to act on the infrared light image and the visible light image respectively, and carrying out weight fusion on the infrared light image and the visible light image which have undergone action of the corresponding fusion weight plots to obtain a fused image. By means of the infrared light image and visible light image fusion method based on interactive non-local average filtering, the fused image high in definition, contrast and spatial resolution can be obtained, and the fusion effect is good. The infrared light image and visible light image fusion method based on interactive non-local average filtering can be used in the fields of human vision, machine cognition and the like.

The invention discloses a method for processing coal gas flow center dynamic tracking and monitoring coal gas utilization rate. The method comprises the steps of 1 data collecting and processing; 2 infrared imagery processing; 3 temperature field calibration; 4 coal gas flow center dynamic tracking; 5 coal gas utilization rate monitoring. The method has the advantages that implementation is easy, temperature field calibration is achieved through the treatment on the collected infrared imagery combining crossed thermometry data and blast furnace design data, dynamic tracking on charge-level coal gas flow center fall point distribution is achieved, the coal gas flow center distribution characteristics and the corresponding coal gas utilization rates are classified, the relation between the coal gas center change and the blast furnace coal gas utilization rate is confirmed, real-time monitoring on the coal gas utilization rate is realized, the dynamic changing condition of the coal gas flow center and the relation between the dynamic changing condition of the coal gas flow center and the corresponding coal gas utilization rate can be recognized timely and accurately, on-line monitoring and visual control on the burden distribution operation of the blast furnace are achieved, and the advantages of being high in accuracy rate and strong in real-time performance are achieved.

Provided is a film box-office film watching audience number statistical system. The film box-office film watching audience number statistical system comprises an advertisement monitoring exposure system based on a picture and voice frequency comparison technology, and a box-office statistical system based on infrared imagery and picture analysis, wherein according to the advertisement monitoring exposure system based on the picture and voice frequency comparison technology, a camera carries out recording on pictures and voice frequency of theater chain advertisements, then a data processing module carries out collection and encoding on the pictures and the voice frequency of the theater chain advertisements, and passes back processed data to a data center through a 3rd generation telecommunication (3G) data channel, and the data center stores the data which are collected and are encoded by each data processing module, carries out picture and video frequency comparison with standard advertisement source information, and carries out storage and database login on comparison results. According to the box-office statistical system based on the infrared imagery and the picture analysis, a noctovisor is used for shooting a panoramic picture of all the audience, and transmitting the picture to a back-end data processing center. Due to the fact that human body temperatures are used for judging the number of the audience, the film box-office film watching audience number statistical system can completely carry out box-office statistics, and solves the difference between a film maker and a theater chain in box-office data.

A method for providing an observer with an intuitive awareness of a tactical environment is disclosed. In an illustrative embodiment, the method displays a 360° panoramic view of the environment surrounding a warship, wherein the view is augmented by radar data, infrared imagery, visible imagery, and tactical information about targets within the field-of-view.

A sensor system senses a scene and includes a dual-band imaging infrared detector lying on a beam path, wherein the infrared detector detects infrared images in a first infrared wavelength band and in a second infrared wavelength band; and a two-color cold-shield filter lying on the beam path between the infrared detector and the scene. The cold-shield filter defines a first aperture size for infrared light of the first infrared wavelength band, and a second aperture size larger than the first aperture size for infrared light of the second infrared wavelength band. The first infrared wavelength band has wavelengths less than wavelengths of the second infrared wavelength band.

A sensor system senses a scene and includes a dual-band imaging infrared detector lying on a beam path, wherein the infrared detector detects infrared images in a first infrared wavelength band and in a second infrared wavelength band; and a two-color cold-shield filter lying on the beam path between the infrared detector and the scene. The cold-shield filter defines a first aperture size for infrared light of the first infrared wavelength band, and a second aperture size larger than the first aperture size for infrared light of the second infrared wavelength band. The first infrared wavelength band has wavelengths less than wavelengths of the second infrared wavelength band.

The invention discloses a large-visual-field binocular vision infrared imagery checking method. The method comprises the following steps: collecting data of student images by utilizing the binocular infrared cameras at two ends of a wall on which a blackboard is located in a classroom; splicing left and right two images; compounding into a large-frame large viewing angle image in the classroom; automatically positioning human face area part in the image; confirming the identity of the students by performing the processes of feature extraction and recognition comparison, thereby lastly realizing the check on the attendance of the students. The traditional checking method based on visible light image is easily influenced by the factors of illumination variation and complex background so that the recognition rate is low. The method provided by the invention can effectively solve the problem; according to the method, the conditions of being late, early leaving and absenteeism of the students can be accurately recorded and counted; the working efficiency of classroom checking is increased; the time resource of the teachers is saved; the burden of the teachers is relieved; the teaching quality of the school is increased; the school spirit and study style construction of the school is promoted.

The invention discloses an on-line paper cup leakage detecting device. The on-line paper cup leakage detecting device comprises a conveying belt used for conveying a paper cup, a thermal infrared imager fixed beside the conveying belt and used for collecting the infrared imagery of the paper cup, and an air injection mechanism arranged above the conveying belt. The on-line paper cup leakage detecting device is further provided with a controller and / or a monitor connected with the thermal infrared imager and used for judging whether the paper cup is qualified. The air injection mechanism comprises a pressing plate used for covering the opening end face of the paper cup, an air injection pipe penetrating through the pressing plate to inject hot air into the paper cup, and a stretchable unit used for connecting the pressing plate with the air injection pipe. According to the on-line paper cup leakage detecting device, the infrared thermal imaging non-contact non-destructive testing technology is adopted, full-automatic leakage detection and selection of disposable paper cups on a production line are achieved, and nondeterminacy caused by manual sampling detection and destructiveness caused by water-used detection are avoided.

The invention is a device for detecting images formed by thermal infrared radiation. It uses a two dimensional array of thermally sensitive elements formed of material whose capacitance changes with temperature. Changes in capacitance of the detector elements are measured and used to form an electronic representation of the thermal infared image. The detector array can be fabricated using inexpensive materials and processes.

Near infra-red images of natural scenes usually have better contrast and contain rich texture details that may not be perceived in visible light photographs. The contrast and rich texture details form a NIR image corresponding to a visible light image are useful for enhancing the visual quality of the visible light image. To enhance the visual quality of a visible light image using its corresponding near infra-red image, a computer-implemented method computes a weight region mask from the visible light image, transfers contrast data and texture data from the near infra-red image to the visible light image guided by the weighted region mask. The contrast data is computed from the low frequency subbands of the visible light image and corresponding infra-red image after a wavelet transform by matching the histogram of gradient magnitude. The texture data is computed from the high frequency subbands of both images after wavelet transform.

The component has an enclosure (5) whose one of the sides (3) has a window (4) transparent to electromagnetic radiation. A detector (6) is positioned inside the enclosure, opposite to the window. A getter (13) maintains the vacuum at an acceptable level within the enclosure. The getter is positioned within a secondary enclosure (20), arranged outside the enclosure (5) and freely communicating with the enclosure (5). Independent claims are also included for the following: (A) an optical set for infrared imagery; (B) a process for forming a seal for a packaging case of the electromagnetic radiation detecting component.

Methods for maximum scene surface temperature estimation for blades with reflective surface properties in advanced stationary gas turbines are disclosed. The approach utilizes high speed infrared imagery provided by an online monitor system using a focal plan array (FPA) for near-infrared monitoring during engine runtime up to base load. The one waveband method for temperature estimation is assumed as starting point. A lower surface emissivity and higher surface reflectance of thermal barrier coating (TBC) in near-infrared can cause systematic estimation errors. Methods using the one wave band method, with the purpose to reduce estimation errors for maximum temperatures are also disclosed. Theoretical results, data from numerical simulations, and real data from engine test are provided. A system for performing temperature estimation methods is also disclosed.

The invention discloses a chopper based infrared imagery heterogeneity correction method. According to the chopper based infrared imagery heterogeneity correction method, innovation is made on the basis of distortion lens real-time correction, and a chopper with different shielding effects is designed and applied to replace correction technology of an original distortion lens; meanwhile, a solution method of chopping correction technology is provided to solve the problem of the synchrony relationship between an infrared imagery integrated signal and chopping stepping and rotation periods; since an infrared detector is small in size and a photoelectric angle measurement alignment code disc cannot be installed, automatic identification of high-temperature images, background images, low-temperature images, and half-shielding needs achieving, so that chopping based imagery heterogeneity correction is achieved.

Provided is a detecting method of combining infrared imagery and normal distribution analysis for a hardware trojan horse. The detecting method comprises the steps that S1: the infrared imagery is captured; a pure chip sample without the hardware trojan horse and a detected chip with a same model simultaneously starts to work, and the infrared imagery of the two chips over a period of time is captured by imagery collecting equipment; S2: a first difference is carried out on the acquired infrared imagery; in the period of sampling time, a pair of infrared imagery is generated at each sampling moment, the difference is carried out on the pair of infrared imagery, infrared imagery after the difference is obtained; S3: a second difference is carried out on the differential infrared imagery ateach moment. Each pixel point in the obtained differential infrared imagery in the first difference is extracted, and differential temperature is drew on a coordinate graph with taking time as an abscissa; S4: judgement is carried out, and the differential temperature of the pixel point with the trojan horse is higher; S5: the normal distribution analysis is carried out. The detecting method has the advantages of high detecting precision, low detecting cost, high detecting efficiency and the like.

A method for providing an observer with an intuitive awareness of a tactical environment is disclosed. In an illustrative embodiment, the method displays a 360° panoramic view of the environment surrounding a warship, wherein the view is augmented by radar data, infrared imagery, visible imagery, and tactical information about targets within the field-of-view.

The invention relates to a chip for generating multiband dynamic scenes and belongs to the fields of dynamic infrared imagery generation and visible light / infrared scene compounding. The chip for generating the multiband dynamic scenes comprises a substrate and an infrared imaging pixel array. One side of the substrate is provided with a plurality of high visible light absorption materials which are arranged in an array mode. The infrared imaging pixel array is made of the high visible light absorption materials. The chip integrates generation of a visible light wave band scene, a near-infrared band scene, a middle-infrared band scene and a far-infrared band scene, so that a complicated structure formed by compounding multiple convertors is avoided.

Infrared imagery device with integrated shield against parasite infrared radiation, and method of manufacturing the device.This device comprises a support (62) provided with an infrared radiation detector (40), at least one optical device (28) facing the detector, and a shield against parasite radiation. The shield comprises at least two continuous beads (c1, c2), spaced from each other, extending from the support as far as the optical device, provided with vents and made of a material that significantly attenuates parasite radiation, penetrating laterally between the support and the optical device. The two beads with their vents form a baffle. The device is manufactured using the flip chip technique.

The invention discloses a method for testing a photovoltaic module through infrared imagery analysis. The method comprises the following steps: step 1, detecting the appearance of the photovoltaic module, and then testing the power output of the photovoltaic module under the standard testing condition, and testing the open-circuit voltage Uoc and short-circuit current Isc of the photovoltaic module under the standard testing condition; step 2, charging the photovoltaic module with current and voltage by a supply unit, wherein U larger than (1+3%)Uoc, and I is smaller than Isc, and after the component is thermally balanced, shooting the infrared image of the photovoltaic module by a thermal infrared imager; step 3, selecting the temperature testing range according to the infrared image, and calculating the temperature difference between the highest temperature and the average temperature of the photovoltaic module. After the photovoltaic module is powered on to achieve the thermal balance, the infrared image is shot by the thermal infrared imager, and the temperature difference between the highest temperature and the average temperature of the photovoltaic module is calculated, so as to evaluate the capability of withstanding high temperature of the photovoltaic module, and have guiding significance in reduction and prevention of a hot-spot phenomenon.

Infrared imagery device with integrated shield against parasite infrared radiation, and method of manufacturing the device. This device comprises a support provided with an infrared radiation detector, at least one optical device facing the detector, and a shield against parasite radiation. The shield comprises at least two continuous beads, spaced from each other, extending from the support as far as the optical device, provided with vents and made of a material that significantly attenuates parasite radiation, penetrating laterally between the support and the optical device. The two beads with their vents 15 form a baffle. The device is manufactured using the flip chip technique.

The invention provides a control method and a control system for an air conditioner, a mobile terminal and the air conditioner. The control method comprises the steps that a temperature array from the air conditioner is received; pseudo-color processing is conducted on the temperature array to acquire a pseudo-infrared imagery; a control command for air supply is generated according to the pseudo-infrared imagery; the control command for air supply is transmitted to the air conditioner to control the air conditioner to conduct air supply on an assigned infrared object; the temperature array is the temperature distributing data of indoor current infrared objects acquired by the air conditioner, and the assigned infrared object is any one of the current infrared objects. According to the technical scheme, on the one hand, the accuracy on the air-supplying control of the air conditioner by the mobile terminal and the wireless transmission efficiency can be improved effectively, on the other hand, the indoor infrared thermal distribution condition can be monitored through the mobile terminal in real time, and whether abnormality is happened or not can be judged, so that the user experience is improved.

The utility model adopts a reflector which is specially arranged between the screen and the ocular of the optical finder. This reflector can realize the total reflection and open or close. When this reflector opens, the light path is unclosed; all images on the screen arrive at the ocular for optical framing. When this reflector closes, all images on the screen are reflected to the pick-up head for view finding, so that the pick-up head specially used for the camera can obtain the maximum brightness of the screen image. Currently, the existing digital camera fails to shot the IR picture. So, this utility model can block the infrared light. Thus, only visible light goes through the optical filter, or the visible light is blocked off and only infrared light goes through the optical filter. Therefore, the daily shooting or night shooting can be switched via the open or close of these two lenses.

The present invention is a method for detecting defectives of integrated circuit ( IC ) consisting of a plurality of parallel transistors on a wafer. The method comprises the following steps: applying a bias to the transistors; and extracting the infrared imagery of the transistors. 200 placing IC on automatic detecting table 201 applying a bias to IC 202 extracting infrared imagery of IC 203 discriminating infrared imagery and rejecting defectives.

The invention comprises a method for detecting, distinguishing and locating an infrared imagery sea-surface target, which comprises the following steps: (1) detecting a remote target: firstly, a remote real-time image is preprocessed by restraining background and noise, and then is segmented so as to extract a plurality of suspected target areas; segmentation threshold is corresponding gray valueof inflection points which firstly appear in a grayscale column diagram of the real-time image; and finally a suspected target is extracted in each suspected target area and compared with a corresponding target module so as to screen out the target; (2) locating points of interest of a close-range target: firstly, a close-range real-time image is segmented so as to extract the target; a target locating shaft is obtained by utilizing standardization central moment information of the target; the target locating shaft direction is determined by distinguishing the head an the tail end of the target locating shaft, and further the points of interest of the target are located. The method has small computation workload, good real-time, high detection rate and the capability of image blur resistance, sea surface islands resistance and other man-made target interference resistance, and can be applied to a high speed maneuvering platform for detecting the target against the background of complex sea surfaces and distinguishing and locating the points of interest of the target.