48results about How to "Realize imaging detection" patented technology

The invention discloses a spectral domain OCT detecting system and method based on segmented spectrum optical path coding. A dichroscope is arranged in a traditional reference arm, so that a light source spectrum is divided into two portions which arrive at a transmission light path and a reflection light path respectively. Due to the fact that the positions of plane mirrors in the transmission light path and the reflection light path are different, and the two portions of the spectrums cover different optical paths in the reference arm and interfere with returning light of two different depth sections in a sample. After the two portions of spectrum interference signals enter a detection arm, the spectrum interference signals are detected by pixel points in different regions of a CCD in a spectrometer, spectrum parallel obtaining is achieved on the non-aliasing condition. On the condition that the detection arm and a sample arm of spectrum domain OTC are not changed, a simple light splitting structure is additionally arranged in the reference arm, arrangement of different zero-optical-path positions in a sample and parallel detection of double reference arm spectrum domain OCT signals are achieved, and imaging range of the spectrum domain OCT is broadened.

The invention discloses an MIMO through-wall radar based single-side double-point squint imaging method of a building. An MIMO through-wall radar carries out real-aperture squint detection at two detection points selected in the single side of the building, and collected real aperture echoes of the two points from two squint images which include part corners of the building and static objects in the building via a backward projection imaging algorithm. Overlapped fusion and 2D constant false alarm detection are carried out on the two squint images, the integrity of all corner images of the building is ensured, the layout of all walls can be determined, corner image sidelobe and multipath phantom interference are inhibited, distribution of static objects therein can be determined, and a panorama image of the building including clear corner images and static object images is obtained finally. The corner image and the static object image can be used to determine the wall layer out and the static object distribution respectively, and imaging detection for the wall layout and the internal static objects of the building is realized.

The invention discloses an airborne dual-band photoelectric wide-area reconnaissance and tracking device. The device comprises a photoelectric turret (1); the photoelectric turret (1) comprises a visible light television (3), an infrared thermal imager (4), a gyro assembly (5), a servo module (6), an angle measuring module (9), a control management module (10), an image processing and tracking module (11) and a communication interface module (12); the servo module (6) is used for driving the line of sight of the photoelectric turret (1) to search or track a target; the angle measuring module (9) is used for measuring the angular position of the servo module (6), determining the real-time pointing direction of the line of sight; and the control management module (10) is used for controllingthe photoelectric turret (1) to be switched between a wide area search mode and a tracking monitoring mode, receiving the data of the image processing and tracking module (11) and the angle measuringmodule (9), performing data processing and sending processing results to the servo module (6) and the image processing and tracking module (11).

The invention relates to a wavelength conversion system used for streak tube laser radar 3D multispectral sensing, in particular to a multispectral sensing wavelength conversion system based on an optical fiber array and belongs to the field of photo-electronic imaging. The multispectral sensing wavelength conversion system based on the optical fiber array comprises a receiving optical system, a spectro-grating, a spatial light modulator, the optical fiber array, a micro-lens array, a APD array, a transimpedance amplifier array, a differential receiving amplifier array, a vertical cavity surface laser array and a computer. The problem of manufacturing of a large-array detector is solved by introducing the spatial light modulator and the optical fiber array, and the crosstalk influence generated when all channels of a photo-electronic detector receive echo pulses is reduced. According to the multispectral sensing wavelength conversion system, the echo signals of different wavelengths are converted into peak-wavelength signals which a streak tube positive electrode material can respond to, multi-wavelength conversion for streak tube laser radar multispectral sensing is achieved, and the multispectral sensing wavelength conversion system can be widely applied to the multispectral 3D sensing imaging technology.

The invention provides a novel cross position-sensitive anode which is suitable for a micro-channel plate detector, and discloses a high-performance ultraviolet photon counting integral imaging detection system and a photon counting integral imaging measurement method, wherein the cross position-sensitive anode serves as a core detection component. The cross position-sensitive anode is divided into an upper layer and a lower layer, wherein each rectangular conductive strip on the upper layer is in overlap joint with each rectangular conductive strip on the lower layer, the rectangular conductive strips on the upper layer are parallel on the same plane, the rectangular conductive strips on the lower layer are parallel on the same plane, insulation layers correspond to the rectangular conductive strips on the upper layer in a one-to-one mode and are located in projection ranges of the corresponding rectangular conductive strips respectively, all the rectangular conductive strips on the upper layer and the lower layer integrally form a cross grid in the projection direction, and each rectangular conductive strip independently outputs an electric charge signal. The anode and the method can achieve the properties of high spatial resolution and high counting rate, solve the electrode conduction problems, reduce electrode crosstalk and accurately control the width of an insulation channel.

The invention discloses a large-view-field curved surface focal plane imaging method and system based on an image transmitting optical fiber bundle. The method comprises the following steps: incident light is incident to a Pitts universal plane generated by a spherical lens through the spherical lens formed by gumming two groups of symmetrical lenses; and after the light passes through an image transmitting optical fiber bundle input end arranged on the Pitts universal plane, the light is incident to a planar charge coupled device (CCD) array through an image transmitting optical fiber bundle output end coupled to the planar CCD array so as to realize curved surface focal plane imaging. By adopting the method and system disclosed by the invention, the imaging effects of a large view field and high resolution are realized, and the cost of a large-view-field imaging system is greatly reduced.

The invention relates to a power system fault detection system and method based on ultraviolet and infrared images. The system comprises an infrared camera, an ultraviolet camera and an upper computer. The infrared camera and the ultraviolet camera are arranged in front of a power device to be detected; light paths of the infrared camera and the ultraviolet camera are in parallel optical axis; the infrared camera and the ultraviolet camera are connected with the upper computer; and the upper computer is provided with an image processing and analysis module for carrying out processing and analysis on infrared images and ultraviolet images shot by the infrared camera and the ultraviolet camera to obtain a fault result. Compared with the prior art, the system and method are high in detection accuracy, can realize detection without cutting off the power and can realize real-time imaging, high efficiency and simple operation, and provide a new approach for fault detection of the electric power field.

The invention relates to a preparation method for an electrondrawing group containing semi-cyanine temperature-sensitive molecular optical probe. The preparation method comprises the following steps of: 1) mixing iodate of a raw material indoline derivative and aromatic aldehyde by molar ratio of 1:1, and performing reflux in ethanol for 10-15 hours; 2) adding KBF4 and performing reflux for 2 hours for anion exchange; and 3) obtaining the semi-cyanine temperature-sensitive molecular optical probe through recrystallization of absolute ethyl alcohol. The preparation method provided by the invention has the advantages that the electrondrawing group containing semi-cyanine temperature-sensitive molecular optical probe material can quickly determine and monitor temperature of a fluid industrial production line by arranging ultraviolet absorption or fluorescence emission spectrum detection monitoring points; and through fluorescence labeling of living animals by the electrondrawing group containing semi-cyanine temperature-sensitive molecular optical probe, image detection for body temperature of the living animals can be realized through fluorescence imaging technology, so that the electrondrawing group containing semi-cyanine temperature-sensitive molecular optical probe can be applied to fields of biomedical diagnosis and the like.

The invention provides a Fourier transform imaging spectrometer adopting lateral shear interference scanning, which can better realize spectral imaging detection in a ground staring state or a stable tracking state. The Fourier transform imaging spectrometer mainly comprises a pyramidal Michelson lateral shear two-beam interferometer used for generating linear interference fringes on an imaging surface of a target scenery, a movable mirror scanning mechanism used for driving one movable mirror in the lateral shear two-beam interferometer to axially move for one-dimension scanning of an interference pattern on the imaging surface, a Fourier optical imaging objective lens used for focusing emergent light from the lateral shear two-beam interferometer to the imaging surface, a CCD (charge coupled device) area-array camera used for detecting a scenery target image interfering modulation, an image data processor used for recording and processing image data output by the CCD area-array camera, and a control system used for coordination control of operation of the movable mirror scanning mechanism, the CCD area-array camera and the image data processor. The invention further provides a method for spectral imaging by the spectrometer.

The invention belongs to the field of optical imaging, and provides an off-axis catadioptric medium-long wave infrared system based on a concentric double-spherical reflector aiming at the requirements of an infrared band on a large-view-field, low-distortion and high-imaging-quality optical system. The method is mainly applied to the fields of satellite-borne large-range medium-resolution meteorological observation and the like. The system sequentially comprises a first spherical reflector, a second spherical reflector, n groups of folding axis mirrors and n groups of imaging compensation lens groups in the light propagation direction; the system is an off-axis system; the n groups of imaging compensation lens groups are distributed at the light emitting part of the second spherical reflector in a fan shape; one group of diaphragms, one group of folding shaft lenses and one group of imaging compensation lens groups form an independent imaging channel; incident light is reflected by the first spherical reflector, the second spherical reflector and the folding axis mirror in sequence, passes through each diaphragm and then vertically enters the compensation lens group of the corresponding imaging channel. The optical system has the characteristics of high imaging quality, large imaging view field, full-view-field constant ground element resolution, capability of working in an infrared band and the like.

The invention discloses a centrifugal microfluidic detection device and a centrifugal microfluidic detection system. The centrifugal microfluidic detection device comprises a power supply module, a control module, a rotating module, a cracking module, a heating module, an imaging detection module, a visual color detection module and a chip tray; and the imaging detection module can perform imaging detection on a test strip cavity of the chip, and the visual color detection module can perform color detection and absorbance detection on a reaction cavity of the chip. According to the centrifugal microfluidic detection device, the imaging detection module is arranged, so that imaging detection can be realized; by means of the visual color detection module, color detection can be achieved, and absorbance detection can also be achieved. Therefore, the centrifugal microfluidic detection device can realize two optical detections at the same time, and compared with the prior art that only one optical detection can be realized, the universality is effectively improved; immunodetection and nucleic acid detection can be realized at the same time, and the detection performance is improved.

The invention discloses a satellite-borne horizontal staring and vertical scanning hyperspectral limb detection method. The detection method comprises the following steps: step 1, determining a limb detection view field; step 2, setting working parameters of limb detection; step 3, determining a single limb scanning sequence based on the step 1 and the step 2; step 4, determining a whole rail limb scanning sequence based on the step 3; and step 5, completing in-orbit calibration of the limb scanning light path. According to the invention, staring is carried out in the horizontal direction, scanning is carried out in the vertical direction from the bottom of the atmosphere upwards in sequence by adopting the scanning mirror, the integral time, gain and acquisition times of the imaging spectrometer can be set according to the radiation intensity of a detected target at each limb scanning height, limb detection with a high signal-to-noise ratio is realized, and in-orbit calibration is carried out by adopting double transmission plates. And the on-orbit high-precision calibration is realized.

The invention discloses a multiband integrated sensor optical system, which comprises a front beam compressing system, a beam splitting flat plate 1 for transmitting medium wave infrared light and reflecting visible light and laser, a beam splitting flat plate 2 for transmitting visible light and reflecting laser, an infrared optical system, a laser ranging system and a visible light optical system, which are arranged in sequence from an object side to an image side in the optical axis direction. The infrared optical system, the laser ranging system and the visible light optical system share the front beam compressing system, and form an infrared channel, a laser ranging channel and a visible light channel respectively; and the three channels can rotate around the Z axis for 360 degrees torealize azimuth scanning and detection, and can rotate around the X axis for 360 degrees to realize pitch scanning and detection, so that panorama coverage is realized. The multiband integrated sensor optical system is compact in structure, good in optical axis uniformity, high in pointing accuracy and easy in installation and adjustment, covers three bands of visible light, infrared and laser, realizes medium wave infrared and visible light imaging, and effectively improves performance of photoelectric detection equipment.

The invention discloses a G-quadruplex structure wrapped by a DNA framework as well as a preparation method and application of the G-quadruplex structure. Six DNA sequences required for assembling a framework structure, a Cy3 sequence and a Cy5 sequence required for forming a G-quadruplex probe are uniformly mixed in a buffer solution at the final concentration of 0.6 mu M, a sample is put into aPCR instrument to be subjected to program annealing from 95 DEG C to 4 DEG C within 3.5 hours, a G-quadruplex nanostructure (G4F) wrapped by a DNA framework is obtained, and under the condition that atarget sequence (miR122a) is deleted, only green fluorescence from Cy3 occurs. And when the target sequence exists, the fluorescence resonance energy transfer process can be promoted, so that Cy5 fluorescence is enhanced while Cy3 fluorescence is weakened. The preparation method is simple and low in cost, the prepared G4F can specifically detect the objective target, is not interfered by externalenvironmental factors and has high stability, a DNA framework structure can effectively protect a G-quadruplex probe from being degraded by intracellular substances in cells, a target sequence can beefficiently recognized, and intracellular imaging detection is achieved.

The invention discloses an ultrasonic guided wave imaging detector and a method thereof. A field programmable logic array in a guided wave signal acquisition system is used for controlling a guided wave signal execution circuit for generating a guided wave detection signal, the signal is collected and processed by the field programmable logic array and transmitted to an imaging system through a PCIE bus, after transmitted guided wave detection data is received by the imaging system through the PCIE bus, imaging processing is performed through an embedded multi-core processor, and the processedsignal is sent to a display panel through an LVDS display signal line for display. Through the embedded multi-core processor, power consumption of the whole machine is reduced, the PCIE bus is employed to simplify the circuit connection relationship for high-speed signal communication between two systems, and a graphics processor (GPU) integrated in the embedded multi-core application processor achieves good real-time imaging while maintaining low power consumption.