34results about How to "Increase scan resolution" patented technology

The invention discloses an oral cavity scanning device based on the principle of optical coherence tomography. Based on the principle of optical coherence tomography, the present invention detects interference spectrum signals generated by combining backscattered light and reference beams of tissues at different depths, and realizes parallel detection of depth information through inverse Fourier transform. The present invention combines the longitudinal tomography capability with the transverse scanning function, and provides an oral cavity scanning device for real-time reconstruction of a high-resolution digital three-dimensional model of the oral cavity under the conditions of non-ionizing radiation and non-invasiveness. Compared with the traditional impression technology, the present invention realizes complete digitization, saves material cost and operation time, improves patient comfort and model quality, and the digital model is convenient for storage, transmission and analysis. The invention has beneficial effects that the current digital oral impression technology does not possess.

The invention discloses a high-precision sensing device for a smart factory, comprising a base and a scanning component, wherein a conveyor belt is fixed on the base, and the conveyor belt is respectively connected to the input end and the output end of the item to be identified in the production line, so The conveyor belt is respectively provided with an offset assembly and a scanning assembly along the direction from the input end to the output end; the offset assembly can guide objects of different sizes on the conveyor belt to center or offset; a lifting frame is fixed on the base on one side of the conveyor belt , the lifting frame is provided with a lifting platform that can move up and down in the direction of the conveyor belt, and the lifting platform is provided with a scanning component that can move perpendicular to the traveling direction of the conveyor belt; the lifting frame is provided with a drive capable of driving the lifting platform to move device; the lifting platform is provided with a driving device capable of driving the scanning assembly to move. Compared with the prior art, the present invention can be applied to scanning objects with different shapes and sizes, and has strong applicability, high scanning resolution and good accuracy.

A high performance, low-cost automotive radar is designed by mounting receivers around a 3D printed Luneburg lens. With this configuration, the antenna radiation pattern is maintained for all angles, (which means no beam deformation). Further, the present radar is capable of performing detection at all azimuth and elevation angles with high angle resolution and broadband operation. The radar adaptively adjusts its spatial sensing pattern, sweeping frequency band, pulse repetition frequency and coherent processing interval according to the environment. This is accomplished by initially performing a rough scan, which updates sensing results via a narrow bandwidth waveform and wide beam scanning. When interested objects are identified, a high-resolution detailed scan is performed in a specific region of interest. In this way, a much more effective detection can be obtained. Moreover, a method of mitigating interference of the 3D printed Luneburg lens based radar and a method of improving the angle resolution using a lens based MIMO approach is disclosed.

The present invention relates to the technical field of scanner systems, in particular to a flat-panel scanner system. The main chip MCU is electrically connected with a USB interface module, a motor drive module and an AD sampling module, and the data conversion chip includes a USB1 pin electrically connected to the main chip MCU. Pin and USB2 pin, the buffer is electrically connected with the USB differentiator and the data conversion chip at the same time, the model of the data conversion chip is FT2232H or Cypress chip, the model of the main chip MCU is STM32F103ZET6, the USB1 of the data conversion chip Both the pin unit and the USB2 pin unit are electrically connected to the data transmission pin unit of the main chip MCU, and the two-way USB alternately transmits to improve scanning efficiency and achieve more precise control of the motor drive circuit. Improve the lighting quality and optimize the signal conversion effect during CIS scanning.

The invention discloses a ship load-carrying measuring method based on a sonar system. Firstly, the sonar system is adopted to scan positions of all points of the bottom of a ship body, then the scanning data of all points of the bottom of the ship body is sent to a host computer, and the host computer adopts the modeling volume-obtaining algorithm to build a three-dimensional model of the underwater part of the ship body and calculates the drainage volume of the ship body, so that the drainage weight is obtained, and finally, the ship load-carrying is calculated according to the buoyancy law.According to the ship load-carrying measuring method based on the sonar system, the independent integrated sonar system is adopted for ship body scanning, then modeling is conducted and the ship load-loading is calculated, the scanned data is accurate, and the ship volume precision is high after modeling, so that more accuracy of the measured data of the ship load-loading is guaranteed.

On a baseboard, a sliding platform and a positioning device are set up; a vision detection device is mounted on the sliding platform via a connecting piece; said positioning device comprises a clamp assembly whose central width can be adjusted and whose height can raise up or fall down; the vision detection device, sliding platform and positioning device are respectively driven by a driven source; the driven source drive the movable detection head in the vision detection device and the clamp assembly to move.

The invention relates to an ultrasonic-detection-technique-based article weighing system comprising an ultrasonic array module. The ultrasonic array module is focused in a width direction and a phase control technique is employed. With the phase control technique, deflecting focusing of an acoustic beam in a width direction is realized, so that an objective of ship body scanning can be achieved and thus a three-dimensional form of an underwater real ship. Whether a three-dimensional form of an object is placed on a ship is compared and analyzed and a drainage amount difference before and after article loading of the real ship is obtained by calculation, wherein the difference expresses the mass of the placed object. According to the invention, the deflecting focusing of the acoustic beam is realized by the phase control technique, so that an objective of scanning of a measured object is achieved and thus scanning efficiency is improved. With an acoustic lens, the acoustic beam width is reduced, so that the scanning resolution ratio is improved.

A sensing method of a fingerprint sensor is provided. The fingerprint sensor includes a plurality of sensing pixels arranged in an array, and the sensing pixels respectively have a sensing electrode. The sensing method includes following steps. A required resolution of an identification requirement is determined; here, the identification requirement is received by the fingerprint sensor. If the number of pixels of the required resolution is less than or equal to the number of the sensing pixels, self-capacitance sensing is performed on the sensing pixels to provide a first fingerprint pattern. If the number of pixels of the required resolution is greater than the number of the sensing pixels, the self-capacitance sensing and mutual capacitance sensing are performed on the sensing pixels to provide a second fingerprint pattern.

The invention belongs to the field of land analysis systems, and in particular relates to an available land resource analysis system based on high-resolution satellite remote sensing data, including a data acquisition module, a data transmission module, a data processing module, an intelligent early warning module, a land use classification system module, A central processor and a data conversion module, the data acquisition module, data transmission module, data processing module, land use classification system module and data conversion module are all connected to the central processor. The intelligent early warning module is bidirectionally connected with the data transmission module, the data processing module and the land use classification system module, and includes an intelligent image recognition and analysis module and a threshold judgment module. The system of the invention can intelligently identify the actual land type in the remote sensing image data, and judge the phenomenon of man-made cover-up of the actual land use type, thereby avoiding errors.