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123results about How to "Shorten the shooting time" patented technology

Button identification device and button identification method

InactiveCN101748562AIdentify front and backRecognizer shapeImage enhancementImage analysisOptoelectronicsIdentification device
The present invention provides a button identification device and a method thereof, which increases the precision for determining front surface and back surface of the button, sews the button to the object being sewed with a high quality and realizes the shortening of button state determination time. White irradiation light is irradiated to the upper surface of the button. Blue adjustment light is shot with a state of irradiating to the lower surface of the button. The reflection light of the irradiated light and the transmitted light of the adjustment light are received, the part except for the transmitted light of the adjustment light is received for obtaining the shot data. The light with the color same with the adjustment light is extracted from the shot data for generating the adjustment light brightness data. The light with the color different from the adjustment light is extracted from the shot data for generating the non-adjusting light brightness data. The non-adjusting lightbrightness data is subtracted from the adjustment light brightness data for generating the adjustment light data. The adjustment light data are binarized and inverted for generating the profile data.Logic and calculation are performed for the shot data and the profile data for generating the synthesized image data. The synthesized image data is compared with the respective standard image data ofthe front surface and the back surface of the button for determining the state of the button.
Owner:JUKI CORP

Method for monitoring plant growth by using unmanned aerial vehicle with multispectral light source

The invention specifically provides a method for monitoring plant growth by using an unmanned aerial vehicle with a multispectral light source, belonging to the technical field of monitoring of plant growth. The method comprises the following steps: determining the characteristic wavelengths of plants according to the species of the plants and selecting a corresponding standard narrowband colored light combination as a standard multispectral light source; irradiating the plants with the standard multispectral light source, acquiring information like the chromaticity coordinates and reflection spectra of the plants of different species and establishing a plant spectrum database; controlling the unmanned aerial vehicle to shoot a detected plant by using an area-array CCD spectral imager and to store information; and comparing the information of the shot detected plant with information like the chromaticity coordinates and reflection spectra of leaves of a plant of a same species in the plant spectrum database so as to analyze the growth condition of detected leaves. According to the invention, the unmanned aerial vehicle carries the multispectral light source and the area-array CCD spectral imager for monitoring, so the coverage area of a single scanning is great and measuring precision is high; the unmanned aerial vehicle is simple in flight route, easy to control and low in cost; thus, the method is applicable to monitoring of plant growth during current agricultural plantation in fields, greenhouses, plant factories, etc.
Owner:上海复展智能科技股份有限公司 +1

Method, device and equipment for acquiring high-dynamic range image based on double cameras

The invention discloses a method, a device and equipment for acquiring a high-dynamic range (HDR) image based on double cameras. The method comprises the following steps: obtaining a normal exposure image under a current shooting scene; determining an underexposure compensation value and an overexposure compensation value under the current shooting scene; controlling the first camera to obtain anunderexposure image and the second camera to obtain an overexposure image according to the underexposure compensation value and the overexposure compensation value; performing fusion processing on thenormal exposure image, the underexposure image and the overexposure image and generating the high-dynamic range under the current scene. The method disclosed by the invention has the beneficial effects that through simultaneously and respectively shooting images of different levels of exposure required by the HDR image by utilizing the double cameras, not only is the shooting time of the HDR image shortened, but also the ghosting of the finally-synthesized HDR image can be effectively avoided, so that the effect and the quality of the high-dynamic range image are improved, and the user experience is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

High-reliability security check ceramic X-ray tube

The invention relates to key parts in detection equipment, in particular to a high-reliability security check ceramic X-ray tube. The high-reliability security check ceramic X-ray tube comprises an anode assembly and a cathode assembly. An anode head in the anode assembly and a focusing disc in the cathode assembly are oppositely arranged. The high-reliability security check ceramic X-ray tube is characterized in that the anode assembly and the cathode assembly are assembled into a whole in a butt joint mode through a ceramic shell, the anode head and the focusing disc are arranged in the ceramic shell, the anode assembly is provided with a ray output window located outside the ceramic shell, the anode head is of a conical head structure, the focusing disc is provided with a small circular cavity and a large circular cavity and is of a cap structure, the large circular cavity is located at the outer end and is opposite to the anode head, the inner diameter of the large circular cavity is larger than the largest outer diameter of the anode head, and a water cooling sleeve is additionally installed at the tail end of the anode head. The high-reliability security check ceramic X-ray tube solves the problem that an existing security check tube is poor in reliability and short in service life, and is mainly used for various security check devices.
Owner:HUANGSHI SHANGFANG INSPECTION EQUIP +1
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