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8results about How to "Improve focusing efficiency" patented technology
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Focus adjustment apparatus and focus adjustment method for binocular camera
ActiveCN121585913BImprove focusing efficiencyGuaranteed focusing accuracyTelevision systemsOphthalmologyEngineering
Owner:AVIEW IMAGE TECH SUZHOU
An auto focus control method, system and medium
The application discloses an automatic focusing control method, system and medium, the method comprises the following steps: using the maximum spot displacement allowed by the sensor, the total displacement of the spot on the sensor caused by the moving speed of the objective lens along the z-axis and the moving speed of the object to be measured along the x-axis is constrained to screen out the upper limit moving speed allowed by the objective lens; the moving speed of the current objective lens along the z-axis and the defocus amount are obtained, the relationship between the absolute value of the defocus amount and the set defocus amount threshold is judged, if it is not greater than the set defocus amount threshold, the objective lens is driven to move at the second moving speed, if it is greater than the set defocus amount threshold, the objective lens is driven to move at the first moving speed. Through the relationship between the absolute value of the defocus amount of the position of the objective lens and the set defocus amount threshold, the dynamic control of the moving speed of the objective lens, the calculation amount of the focusing speed and the defocus amount is effectively balanced, the accuracy of the defocus amount calculation is improved while realizing the fast focusing.
Owner:HEFEI I TEK OPTOELECTRONICS CO LTD
An automatic focusing method, system and medium
The application discloses an automatic focusing method, system and medium, the automatic focusing method comprises the following steps: identifying the magnification of an objective lens, screening the defocus threshold corresponding to the magnification; constructing the theoretical motion model, the measured motion model and the measured variance of the focusing process parameters in the focusing process, and predicting the focusing process parameters at the next moment; analyzing the deviation between the measured value and the predicted value of the focusing process parameters at the same moment, determining whether the deviation of at least one focusing process parameter is greater than the set deviation threshold, if there is, dynamically adjusting the theoretical motion model; if not, driving the objective lens to focus when the predicted defocus is less than the defocus threshold. The application determines whether to dynamically adjust the theoretical motion model by the deviation of the predicted and measured focusing process parameters, eliminates the error, realizes fast focusing, meets the focusing requirements of objective lenses with different magnifications, and improves the focusing efficiency.
Owner:HEFEI I TEK OPTOELECTRONICS CO LTD
Endoscope system focusing method and endoscope system
This invention relates to the field of image processing technology and discloses a focusing method for an endoscope system and an endoscope system. The method includes: step S1, acquiring the current image captured by the endoscope at the current focal length; step S2, determining the candidate focusing region on the current image; step S3, determining the sharpness evaluation value of the candidate focusing region; step S4, determining whether the sharpness evaluation value meets the preset sharpness condition; if not, changing the focal length of the endoscope and returning to step S1; if yes, determining that the endoscope system has completed focusing. This invention effectively addresses the problem of incorrect focusing, not only achieving more precise focusing and ensuring the acquisition of high-quality images, but also improving focusing efficiency, reducing the risk of blurring, and effectively enhancing the safety and effectiveness of medical operations.
Owner:INNERMEDICAL CO LTD
Focusing method of projection device and projection device
This application provides a focusing method and a projection device, comprising: projecting a first illumination beam and a second illumination beam onto a lens, the first illumination beam and the second illumination beam emanating from the same position of a spatial light modulator and having different incident angles; the first illumination beam passing through the lens and being projected onto a projection surface to form a first light spot, and the second illumination beam passing through the lens and being projected onto the projection surface to form a second light spot; calculating a focusing amount of the lens based on the relative positional relationship between the first light spot and the second light spot on the projection surface; and focusing the lens based on the focusing amount. Through the above method, this application can improve the focusing efficiency of the projection device.
Owner:APPOTRONICS CORP LTD
An airborne optical imaging intelligent focusing system and method based on deep learning
The present disclosure relates to a kind of airborne optical imaging intelligent focusing system and method based on deep learning, it is related to automatic focusing technical field, system includes: the image acquisition module of continuous acquisition image under different focal length of optical system;The pre-processing module for pre-processing to image sequence;Deep learning module, for using definition time trend perception automatic focusing network model to the image sequence after pre-processing analysis processing output focusing direction, focusing step and focusing confidence;The definition time trend perception automatic focusing network model is used to extract the definition feature of each frame image in the image sequence after pre-processing, according to definition feature capture image context dependence in focusing process, extract the time trend information of definition with focal length change, output focusing direction, focusing step and focusing confidence;Focusing control module;Focusing execution mechanism.The focusing efficiency of the present disclosure is high, and reliability is high.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Autofocus method, apparatus and computer device
ActiveCN121364556BGuaranteed focusing accuracyReduce image acquisition volumeMicroscopesMountingsOphthalmologyReference image
The application relates to an automatic focusing method, device and computer equipment. The method is applied to a microscope and comprises the following steps: in response to an automatic focusing instruction, controlling the movement of an objective lens according to a first step value corresponding to the imaging parameter of the microscope, and collecting at least two first reference images at different objective lens positions; determining a first objective lens position according to the objective lens position and the blur degree feature corresponding to the first reference image; controlling the movement of the objective lens according to the first objective lens position and a preset second step value, and collecting at least two second reference images at different objective lens positions; and determining a target focal plane position and completing focusing according to the objective lens position and the definition degree feature corresponding to the second reference image. The method can improve the focusing efficiency and reduce the calculation amount under the premise of ensuring the focusing accuracy.
Owner:NINGBO SUNNY INSTR
A manual focusing machine
The utility model relates to a kind of manual focusing machine, including support, the support is equipped with base, the base is equipped with focusing machine body, the focusing machine body includes detection table, the detection table is equipped with aluminium shell focusing base, the detection table is equipped with stand, the stand is installed with manual focusing equipment, the manual focusing equipment is equipped with knob turntable and focusing energized terminal head, the support is equipped with laser refractor;When operating, aluminium shell is placed in aluminium shell focusing base, is fixed by clamping pin carding;Cap TO is placed in focusing energized terminal head;Personnel operate knob turntable, and the cap TO that is lit is slowly dropped into aluminium shell by rotating;Laser is irradiated on laser refractor from laser emission point simultaneously in the process of pressing, and it is refracted into mirror by laser refractor.The utility model improves the efficiency of laser focusing, to improve the yield of laser product, and the saving of manpower and material cost.
Owner:安徽兆维激光科技有限公司