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

A scanner is obtained having a subscan axis and having a scan bar including sensor elements positioned in at least one substantially linear array. Each array lies substantially in a plane defined by the subscan and scan-bar longitudinal axes. Each array is tilted with respect to a reference axis at a substantially nonzero angle which is fixed during any image scanning of the image used to create the final scanned image. The reference axis lies in the plane and is substantially perpendicular to the subscan axis. Image scanning the image is performed by relatively moving the scan bar over the image along the subscan axis. One embodiment of the scan bar includes a scan bar body and includes sensor elements supported by the scan bar body and positioned substantially in a common plane in multiple substantially linear arrays, wherein each array is tilted with respect to the scan-bar longitudinal axis.

The invention discloses an unmanned ship laser radar point cloud data correction method based on an attitude sensor and GNSS. The method comprises the following steps: S1, acquiring original data of laser radar point cloud; S2, performing angle interpolation on the laser radar point cloud data; S3, enabling the laser radar to obtain GNSS data in real time, calculating the transmitting time of eachpoint cloud data, and acquiring unmanned ship position information of each point cloud data; S4, acquiring attitude information, measured by an attitude sensor, of the unmanned ship; S5, according tothe attitude information of the unmanned ship measured by the attitude sensor, correcting the laser radar supplementary complete point cloud data. According to the invention, angle interpolation processing is carried out on the laser radar to improve the scanning resolution; a GNSS is accessed, a timestamp is added to each laser of the laser radar, and position information of each point cloud data is recorded; the attitude sensor corrects the laser radar point cloud data in real time, and reduces the error of laser radar target recognition and tracking.

The invention belongs to the field of land analysis systems. The invention, and particularly relates to an available land resource analysis system based on high-resolution satellite remote sensing data. The system comprises a data acquisition module, a data transmission module, a data processing module, an intelligent early warning module, a land utilization classification system module, a centralprocessing unit and a data conversion module, and the data acquisition module, the data transmission module, the data processing module, the land utilization classification system module and the dataconversion module are all connected with the central processing unit. And the intelligent early warning module is respectively in bidirectional connection with the data transmission module, the dataprocessing module and the land utilization classification system module, and comprises an intelligent image recognition and analysis module and a threshold judgment module. By using the system provided by the invention, the actual land type in the remote sensing image data can be intelligently identified, and the phenomenon of artificially covering the actual land utilization type is judged, so that the occurrence of errors is avoided.

An image sensor includes P (P≧2) red-light, P green-light and P blue-light photosensors and is mounted in an image scanning device to expose and read multiple scan lines of a to-be-scanned document. The scanning device includes a driving device for driving the image sensor to move relative to the document. When the image sensor acquires an image of the document, the P red-light photosensors, the P green-light photosensors and the P blue-light photosensors read 3P adjacent scan lines respectively in each exposure. The image sensor continues to read the 3P corresponding adjacent scan lines when the driving device further drives the image sensor to move by P scan lines relative to the document in a specific direction in each step of the driving device. The driving device continues to drive the image sensor to move relative to the document until all the scan lines have been read.

The invention provides a silicon-based optical antenna and a preparation method. The silicon-based optical antenna comprises an SOI substrate, the SOI substrate at least comprises a substrate siliconlayer, a buried oxidation layer and a top silicon layer, the buried oxidation layer is positioned between the substrate silicon layer and the top silicon layer, the top silicon layer of the SOI substrate is etched to form a row of waveguides arranged horizontally, the spacing of the waveguides is in Gaussian distribution, and each waveguide is engraved with a grating. A waveguide array in the optical antenna is arranged in Gaussian distribution, so that light waves can realize a low far-field divergence angle, a good grating lobe inhibition effect, and high horizontal and vertical radar scanning resolution when passing a 2D diffraction grating.

The invention provides wireless handheld three-dimensional scanning equipment for acquiring three-dimensional shapes of object surfaces. The wireless handheld three-dimensional scanning equipment comprises a movable processing platform used for analyzing image data and controlling the state of front-end equipment. The processing platform is connected with an image projection device, an image sensing equipment, a data sending module and a movable power module. Detection output from image data to target detection result compressed data, equipment state probe, and data and command communication with an upper computer are realized. The wireless handheld three-dimensional scanning equipment has the advantages that scanning resolution and scanning speed are high, processed data are used to fit data compression, original limitation is broken through, and higher resolution and faster scanning can be realized.

The invention discloses a non-invasive urine online detection system. The non-invasive urine online detection system comprises a spectrum acquisition module which is used for obtaining full-spectrum data and fragment-type spectrum data of urine to be detected, a user intelligent terminal module, a health data platform and a spectral data intelligent analysis platform which comprises a data analysis module and an algorithm management module and is used for analyzing spectral data, establishing the prediction model and obtaining health index data, the data analysis module is used in cooperationwith the spectrum acquisition module, so that the accuracy of modeling is improved. A human body physiological condition and trend non-invasive technology based on the urine online detection system isprovided, has the advantages of being simple, convenient and fast to operate, accurate in result, sanitary, environment-friendly, low in cost and capable of achieving remote nursing, and has quite good application prospect in the intelligent home and intelligent aged provision fields.

This invention relates to an image sensor package and its method. It include: The P red light sensing units, P green light sensing units and P blue light sensing units, the P is bigger than or equal to two, they are installed in an image scanning device, it can scanning and exposure sensing to several scanning lines on the scanning documents. The image scanning device include a driven device, used to move the image sensing package when scanning documents. When the image sensing package scanning the documents, every exposure can make the P red light sensing units, P green light sensing unit and P blue light sensing units sensing 3P scanning lines they are neighbor their several scanning lines, and when after the driven device relative moving with image sensing package along Y axis, the image sensing package then continuous sensing the 3P scanning lines, and repeat move till all the scanning lines are finished sensing.

The invention discloses an oral cavity scanning device based on an optical coherence tomography principle. Based on the optical coherence tomography principle, interference spectrum signals generatedby convergence of backscattered light of tissues with different depths and a reference light beam are detected, and parallel detection of depth information is realized through inverse Fourier transform. Longitudinal tomography capacity and horizontal screening function are combined, the invention provides the oral cavity scanning device which can realize real-time reconstruction of a digital oralcavity three-dimensional model being complete in data and high in resolution ratio under the non-ionizing radiation and non-intruding conditions. Compared with a traditional impression technology, complete digitization is achieved, the material cost and the operation time are saved, the comfort level of a patient and the model quality are improved, and the digitized model is convenient to store, transmit and analyze. The digital oral impression device has the beneficial effects that the existing digital oral impression technology does not have.

The invention discloses a method and a system for sorting chips into a BIN. The method comprises the following steps of calibrating a coordinate system of an area-array camera and a base station for placing a master slice, controlling the area-array camera, and scanning the master slice according to a preset scanning route and a preset movement interval to obtain unit view blocks at all positions on the master slice, acquiring pixel coordinates of each chip in any unit visual block through an image processing technology, then converting the pixel coordinates into mechanical coordinates, and generating index numbers corresponding to each chip in the current unit visual block, classifying the chips in the current unit visual block according to the test document so as to respectively classify the plurality of chips in the current unit visual block into different sorting documents. According to the method for sorting the chips into the BIN, the test sorting machine can sort the chips according to the sorting documents generated in real time without waiting for the completion of establishment of the sorting documents of the whole master slice, so that the efficiency and the precision of the chip sorting work are effectively improved.

The embodiment of the invention provides a laser scanning-based object tracking method and device. The method comprises steps: laser scanning is carried out in at least one first scanning period according to a first rule until an obstacle is scanned within a preset scanning range, a first location information set of the obstacle is determined, wherein the scanning resolution in the first rule is afirst scanning resolution, and the scanning range in the first rule is a preset scanning range; laser scanning is carried out in a second scanning period according to a second rule, and a second location information set of the obstacle is determined, wherein the next scanning period of the second scanning period is determined as a new first scanning period, the scanning resolution in the second rule is a second scanning resolution, and the second scanning resolution is higher than the first scanning resolution; and according to the first location information set and the second location information set, the trajectory information of the obstacle is determined. Thus, the obstacle tracking accuracy is improved.

The invention discloses an area array type laser radar optical path system, which comprises an array type transmitting module composed of a plurality of laser diodes arranged according to an array, and laser beams output by the plurality of laser diodes form a laser beam area array; an array type receiving module, wherein the array type transmitting module comprises a plurality of avalanche photodiodes arranged in an array; and the lens module is arranged between the array type transmitting modules and is used for constraining the transmission of laser beams. According to the technical scheme,the transmitting end and the receiving end are designed to be area array type transmitting and area array type receiving, so that high integration of the transmitting assembly and the receiving assembly is realized, the production process is simplified, the light modulation efficiency is improved, and the product cost is reduced; moreover, compared with linear array emission, the area array emission can greatly improve the scanning resolution of the laser radar, gives consideration to the focusing performances in the horizontal and vertical directions, and enables the focusing effect to be better.

The invention discloses a method for measuring ship load based on a sonar system. Firstly, the sonar system is used to scan the position of each point at the bottom of the hull, and then the scanning data of each point at the bottom of the hull are sent to a host computer in real time, and the host computer adopts a modeling calculation algorithm Establish a three-dimensional model of the underwater part of the hull and calculate the displacement volume of the hull to obtain the displacement weight, and finally calculate the load of the ship according to the law of buoyancy. The invention uses an independently integrated sonar system to scan the hull, and then performs modeling and calculation to obtain the load of the ship. The scanning data is accurate, and the volume of the ship obtained after modeling has high accuracy, thereby ensuring more accurate measurement data of the load of the ship.

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 relates to the technical field of scanner systems, in particular to a flat scanner system. A main chip MCU is electrically connected with a USB interface module, a motor driving module and an AD sampling module; a data conversion chip comprises a USB1 pin and a USB2 pin which are electrically connected with the main chip MCU; a buffer is electrically connected with a USB differentialdevice and the data conversion chip at the same time; the model of the data conversion chip is an FT2232H or Cypress chip, and the model of the main chip MCU is STM32F103ZET6. A USB1 pin unit and a USB2 pin unit of the data conversion chip are electrically connected with a data transmission pin unit of the main chip MCU. The scanning efficiency is improved through two paths of USB alternate transmission, the motor driving circuit with more accurate control is achieved, and the system design scheme is matched with chip model application, so that the illumination quality in the CIS scanning process is effectively improved, and the signal conversion effect is optimized.