10 results about "Two dimensional detector" patented technology

The invention discloses an intermediate infrared polarization spectrum imaging method and device. The method comprises the following steps: carrying out joint coding on an intermediate infrared light beam carrying to-be-measured target space, spectrum and polarization information by adopting an intermediate infrared polarization spectrum modulator consisting of metasurface units which are arranged in an array and have non-correlation response characteristics; projecting the coding light field to a two-dimensional detector array to generate a two-dimensional coding image under single exposure; and decoding the two-dimensional coding image through a reconstruction unit so as to reconstruct and obtain a space-spectrum-polarization four-dimensional data cube of the target to be measured. The problem that polarization information cannot be rapidly obtained in the prior art is solved, target full information can be obtained under single exposure, and the system has the advantages of being high in imaging speed, simple in structure, easy to miniaturize and the like.

A system for generating semantically structured three-dimensional scene representations from unstructured multimedia input data, comprising: an input data receiver configured to receive unstructured, multimedia input; a two dimensional detector configured to receive the unstructured, multimedia input data and to execute computer vision logic on the received unstructured, multimedia input data to detect one or more building materials, one or more damage patterns, one or more architectural elements, and to extract dimensional information; a three-dimensional reconstruction engine configured to reconstruct a metrically accurate three-dimensional model of the physical interior space from the input data; a metadata generation engine configured to generate structured metadata from outputs of the two dimensional detector and the three-dimensional reconstruction engine; and a rule-based converter engine configured to process the structured metadata in accordance with a set of externally defined, carrier-specific rules to generate one or more claims estimate reports.

The present disclosure discloses a light detection and ranging (LiDAR) device. In particular, the LiDAR device comprises: a two-dimensional vertical cavity surface emitting laser (VCSEL) array including a plurality of VCSELs; a two-dimensional detector array including a plurality of detectors; an emitting lens assembly that steers each of a plurality of laser beams generated from the two-dimensional VCSEL array in predetermined directions corresponding thereto; and a detecting lens assembly that transmits incoming light to the LiDAR device to the two-dimensional detector array, wherein the detecting lens assembly is composed of at least one symmetrical lens, and the emitting lens assembly includes at least one cylindrical lens.

The utility model discloses a strip steel austenite signal detection system. The system comprises an X-ray light source, a collimator, a first vacuum pipeline, a second vacuum pipeline and a two-dimensional detector. The X-ray light source is used for generating X-rays through excitation of a heavy metal target material, the collimator is used for carrying out beam collection on the X-rays, and the first vacuum pipeline is used for being arranged in the annealing furnace. And the second vacuum pipeline is arranged in the annealing furnace. The two-dimensional detector is arranged on one side of the fourth transmission opening of the second vacuum pipeline, and the fourth transmission opening faces the surface of the two-dimensional detector. X-rays generated by the X-ray light source pass through a beam set of the collimator, are transmitted to the strip steel through the first vacuum pipeline and are diffracted on the second surface of the strip steel to form a diffraction signal, and the diffraction signal is used for determining austenite content information of the strip steel. According to the method and the device, the diffraction signal of the X-ray in the strip steel can be detected on line, so that data support is provided for subsequently determining austenite content information in the strip steel.

The invention provides an X-ray depth stress detection method and an X-ray depth stress detection system, relates to the field of stress detection of aerospace components, and realizes nondestructive detection of residual stress of different depths in a material through cooperation of a multi-wavelength X-ray source and double detectors. According to the system, an X-ray tube emits a multi-wavelength ray beam, and the multi-wavelength ray beam penetrates through a measured piece after being focused and filtered by a metal collimator and an optical filter; a diffraction signal is synchronously received by a position sensitive detector and a two-dimensional detector, and an incidence angle omega and a diffraction angle 2theta are regulated and controlled through a goniometer; the object placing table carries a displacement sensor to realize three-dimensional positioning of a sample, and automatic scanning is completed by combining a moving guide rail; the data transmission line transmits the signals to the processing module to generate a depth stress distribution curve. According to the scheme, through multi-wavelength switching and incident angle hierarchical control, the problems that traditional equipment is limited in detection depth and low in precision are solved, and the method is suitable for deep stress analysis of aerospace components.

A system for generating semantically structured three-dimensional scene representations from unstructured multimedia input data, comprising: an input data receiver configured to receive unstructured, multimedia input; a two dimensional detector configured to receive the unstructured, multimedia input data and to execute computer vision logic on the received unstructured, multimedia input data to detect one or more building materials, one or more damage patterns, one or more architectural elements, and to extract dimensional information; a three-dimensional reconstruction engine configured to reconstruct a metrically accurate three-dimensional model of the physical interior space from the input data; a metadata generation engine configured to generate structured metadata from outputs of the two dimensional detector and the three-dimensional reconstruction engine; and a rule-based converter engine configured to process the structured metadata in accordance with a set of externally defined, carrier-specific rules to generate one or more claims estimate reports.

The disclosure relates to a method for measuring particle size of particles suspended in a fluid, the method comprising modulating (S1) radiation with a periodic wave optical mask; illuminating (S2) the fluid with the modulated radiation; detecting scattered radiation and / or transmitted radiation (S3-1) with a 2D detector capturing an image at a first modulation frequency; detecting scattered radiation and / or transmitted radiation (S3-2) with a 2D detector capturing an image at a second modulation frequency; extracting (S4) a first image for the first modulation frequency and a second image for the second modulation frequency, respectively; calculating(S5) a first extinction coefficient for the first modulation frequency and the second modulation frequency, respectively, based on the first extracted image and the second extracted image, respectively; determining the size (S7) of the suspended particles based on the relationship between the first calculated extinction coefficient and the second calculated extinction coefficient. The disclosure further relates to an assembly for measuring particle size of particles suspended in a fluid.

A system for monitoring manufacturing precision in additive manufacturing of three-dimensional components. A combined illuminations and detection element is provided equipped with a two-dimensional detector array and at least one laser radiation source directed onto a region of a material in powder or paste form. Producing at least one region of a three-dimensional component with a locally defined energy input. The detector array is arranged and designed such that speckle arising in / on the surface irradiated by the laser radiation source can be detected in a spatially resolved manner using the detector array and can be fed to an electronic evaluation and control circuit which is connected to an electronic open- and closed-loop control device designed to influence the system. Thermal speckle excitation is achieved using a separate energy beam with which the energy input takes place locally in a defined manner on the material in powder or pasty form.

The utility model provides an imaging testing device for a ray detector, and belongs to the technical field of ray detectors. Comprising a support base, the support base is provided with a two-dimensional scanning moving table through a supporting structure, the middle of the two-dimensional scanning moving table is hollowed out, and an object needing to be imaged is placed in the hollowed-out position; a two-dimensional detector moving table is further installed on the support base, a probe table is installed on the two-dimensional detector moving table, and the probe table is used for placing a detector. By adopting the technical scheme, the position of the detector can be adjusted in the three-dimensional direction, including the distance between the detector and a ray, the vertical alignment between the detector and the ray, the distance between the detector and an object to be imaged and the like, so that the detector can be ensured to be accurately aligned with a ray source in the imaging process; the phenomena of imaging smear, deformation and the like caused by position deviation are avoided, and finally the imaging effect of the ray detector is improved.

The invention discloses an X-ray diffraction testing device which comprises a combined X-ray detector, an X-ray source, a sample table and a host, the combined X-ray detector is used for receiving X-rays and outputting digital images, the combined X-ray detector comprises a rotating table, a zero-dimensional detector and a plurality of two-dimensional detectors, and the zero-dimensional detector and the two-dimensional detectors are arranged on the rotating table. The two-dimensional detectors are used for receiving diffracted light and are spliced into an integral pattern in the same plane, and the zero-dimensional detector is used for receiving direct light, is located in the center of the integral pattern and is coaxially arranged with a rotating shaft of the rotating table; according to the invention, the large-area diffraction test function can be realized at the cost far lower than that of a large-area two-dimensional X-ray diffractometer, and the inherent defect of low direct light utilization rate of the traditional two-dimensional X-ray diffractometer is overcome.