33results about How to "Solve unclear problems" patented technology

The invention provides an outdoor blackboard for teaching which can absorb dust, and relates to the technical field of teaching. The dust-absorbing outdoor blackboard for teaching includes a bottom board and a blackboard body, the blackboard body is located above the bottom board, a placement box is fixedly connected to the lower surface of the blackboard body, and support frames are fixedly connected to both sides of the upper surface of the bottom board. The end of the frame away from the bottom plate is fixedly connected with an adjusting cylinder, and both sides of the lower surface of the storage box are fixedly connected with fixing blocks. The dust-absorbing outdoor blackboard for teaching is equipped with motors, rotating shafts, fan blades, support columns and placement plates, so that the outdoor blackboard for teaching can absorb dust, effectively solving the problem that the outdoor blackboard for teaching is used to impart knowledge to teachers. A lot of dust will be generated during writing on the blackboard, and the dust blocking board of the current outdoor blackboard for teaching is inconvenient to centralize the dust. These dusts are easily inhaled by teachers or students into the lungs and cause respiratory diseases.

The invention relates to a method for capturing and analyzing a road topology model and completing conversion of road topology data, in particular to a method for generating data in a navigation electronic map. The method comprises the following steps: determining exiting angles of convergent points of single lines and double lines in the electronic map; determining the attributes of roundabout road lines in the electronic map; determining the attributes of road lines within the intersection in the electronic map; creating a corresponding intersection object for each intersection point in theelectronic map; creating a corresponding directed arc object for each road in the electronic map; and creating a corresponding turning object for each directed arc with the ending point being the intersection in the electronic map, and generating the corresponding turning voice and suffix voice. The method has the beneficial effects of overcoming the defects of the electronic map provided by the map provider and providing effective data in the navigation electronic map for navigation path planning.

The invention discloses an icon download indication method, an icon download method, an icon download indication device, an icon download device, an icon download indication system and an icon download system. The icon download indication method comprises the steps as follows: receiving an application program download request sent from a user terminal; acquiring icon size information supported by the user terminal; and determining whether a user-defined icon corresponding to the application program and the icon size information is stored in the local or not, if so, sending an icon download indication to the user terminal. Through the scheme provided by the invention, the user terminal can be indicated to download the user-defined icon, which has a proper size and is matched with the user terminal, according to the acquired icon size information supported by the user terminal, and the problems in the prior art that no proper icon can be provided for the user terminal and an improper icon is not clear after being magnified are solved.

A surgical navigation method comprises collecting the three-dimensional images of an organ through nuclear magnetic resonance or CT (computed tomography) before an operation; receiving a planned puncture trace input by a user and displaying the planned puncture trace in the three-dimensional images; collecting the three-dimensional images of the organ through an ultrasonic device during the operation, and converting the three-dimensional images into an operating room coordinate system through a tracer; registering the three-dimensional images before the operation with the three-dimensional images during the operation to obtain final displacement vectors and rotation matrixes; according to the final displacement vectors and the rotation matrixes, converting the three-dimensional images and the planned puncture trace into the operating room coordinate system for displaying; obtaining the motion trace of a puncture needle utilized during the operation through the tracer and displaying the motion trace, the three-dimensional images before the operation and the planned puncture trace in the operating room coordinate system synchronously. The invention also provides a corresponding surgical navigation system. According to the surgical navigation system, blurred images during the operation are replaced by clear images before the operation to provide great help to aspects such as operation, time and image clearness.

Embodiments of the present application provide a lens, a projector, and a near-eye display system. The lens is used to receive a fiber scanning signal sent by a display and modulate the fiber scanning signal, and the lens includes a first lens, a second lens arranged in sequence along the optical axis Two lenses, a third lens, a fourth lens and a fifth lens, the first lens is used for condensing or diverging the optical fiber scanning light signal emitted by the display to form the first transmitted light signal, and the second lens is used for condensing the first transmitted light signal to form the second transmitted light signal, the third lens is used to diverge the second transmitted light signal to form the third transmitted light signal, the fourth lens is used to diverge the third transmitted light signal to form the fourth transmitted light signal, the fifth lens For converging the fourth transmitted light signal to form the fifth transmitted light signal, the lens of the embodiment of the present application can modulate the optical fiber scanning signal sent by the display, so as to solve the problem that the curved image generated by the optical fiber scanning is unclear after projection.

The invention discloses an image shooting control method and device, and belongs to the field of image shooting. The image shooting control method includes the steps that a shooting function of a camera is enabled, and a swiping region generated when a user swipes on a screen is obtained; whether the swiping region is larger than the range threshold value or not is detected; if it is detected that the swiping region is larger than the range threshold value, a delay shooting mode is enabled; image shooting is conducted under the delay shooting mode. After it is detected that the swiping region generated after the user swipes is larger than the range threshold value, the delay shooting mode is enabled, and image shooting is conducted under the delay shooting mode; shooting is conducted under the delay shooting mode, so that the problems that a phone body shakes easily when the user holds a mobile phone with hands and triggers a virtual shutter key, and the shot image is unclear are solved, and the effect of improving the photo quality is achieved.

The invention relates to a navigation method used in a mobile phone screen. The method comprises the following steps of: S1. mounting a screen navigation system in a mobile phone system; S2. when the mobile phone screen display is amplified and the distance between a finger and the screen is smaller than 2 mm, displaying a navigation icon with arrowhead indication on the screen, wherein the display position of the navigation icon is the position of a screen display area in the integral area; S3. dragging the navigation icon to the appointed position; and S4. when the distance between the finger and the screen is larger than the 2 mm, leading the navigation icon to automatically disappear. By applying the invention, a user can browse information as much as possible in the limited screen area, and a screen amplifying technology is more practical and convenient.

A method and a device for dose modulated X-ray scanning, where, according to an example of the method, a theoretical X-ray scanning dose for a scanning region may be calculated according to a target image quality standard set for the scanning region and a reference data level determined for the scanning region. Then, an X-ray attenuation difference between each data level corresponding to the scanning region and the reference data level may be calculated according to the theoretical X-ray scanning dose. In this way, a data level where the X-ray attenuation difference with the reference data level is higher than a threshold may be selected out from the data levels corresponding to the scanning region as a target to be de-noised, and a noise reduction may be performed for the target to be de-noised.

The present invention provides an image processing method and device, a storage medium, and an electronic device. The method includes: acquiring a first image obtained by photographing a target area of ​​a target vehicle; Adjust the brightness of the first image to obtain the second image; compare the ambient brightness value of the environment where the target vehicle is located with the preset ambient brightness value to obtain the first comparison result; use the first comparison result to determine the exposure correction value of the target object; adjust the second The halo of the car light device in the first image is obtained to obtain the adjusted halo of the car light device; based on the exposure correction value and the adjusted halo of the car light device, the brightness of the target object in the second image is adjusted to obtain the target image. The present invention solves the problem that the acquired license plate image on the target vehicle is not clear, and achieves the effect of obtaining a clearer target object and ensuring the brightness of the environment.