4results about How to "Objective reflection" patented technology

The application relates to the technical field of oral cavity equipment, and discloses a dental plaque quantitative analysis system, a method and a storage medium. The system comprises a dental plaque observation instrument and an upper computer. The dental plaque observation instrument is used for collecting a two-dimensional fluorescence image of teeth in an oral cavity area of a to-be-measured object. The upper computer is in communication connection with the dental plaque observation instrument. The upper computer is configured to: receive the two-dimensional fluorescence image of teeth sent by the dental plaque observation instrument; perform image segmentation and image depth estimation based on the two-dimensional fluorescence image of teeth, perform three-dimensional reconstruction, and obtain a three-dimensional tooth model containing a plaque area and a tooth area; then calculate the surface area of the plaque area and the surface area of the tooth area respectively, obtain an area ratio of the surface area of the plaque area to the surface area of the tooth area, and take the area ratio as a quantitative analysis result of dental plaque. The application can accurately calculate the area of the plaque area and realize high-precision quantitative detection of dental plaque.

The application provides a gas flow monitoring method and device, electronic equipment and a storage medium. The method comprises recording adjacent first and second change moments; determining a periodic gas flow corresponding to the second change moment according to the first change moment, the second change moment and a preset volume; determining the number of periodic gas flows used in calculating the indicated gas flow according to the periodic gas flow corresponding to the second change moment and a preset number of periodic gas flows used in calculating the indicated gas flow range; the greater the periodic gas flow, the greater the number of periodic gas flows used in calculating the indicated gas flow; obtaining periodic gas flows corresponding to N-1 change moments before the second change moment, and determining the indicated gas flow corresponding to the second change moment according to the periodic gas flows corresponding to the N-1 change moments and the periodic gas flow corresponding to the second change moment. The method can improve the gas flow monitoring effect.

The application discloses an infrared in-situ transmission sample assembly and an infrared transmission detection system. The infrared in-situ transmission sample assembly comprises a temperature-controllable heating tube, a metal tube sleeve and a sample support. The temperature-controllable heating tube comprises a tube main body. The metal tube sleeve comprises a main tube sleeve which is inserted into the tube main body and is electrically connected with a temperature controller. The sample support comprises a support main body which is inserted into the main tube sleeve and has a tubular structure with open ends. A groove is formed in one end of the support main body along the side surface, and the groove is used for inserting a sample to be measured so that the sample to be measured is in the pipeline of the support main body. The sample assembly can directly place the sample without loading or clamping other window materials, can avoid the breakage of the sample, is beneficial to the evaporation of a small amount of water vapor in the heating process, and thus can avoid the interference of water vapor in the measurement process. The application provides a more accurate and reliable sample accessory for the measurement and analysis of the infrared transmission spectrum.

The embodiment of the present disclosure discloses a method for generating a house layout structure diagram, which comprises the following steps: obtaining first point cloud data information of a target house and trajectory information of a collecting device of the first point cloud data, wherein the first point cloud data information is original point cloud data information of the target house; determining a house layout structure diagram of the target house according to the first point cloud data information and the trajectory information; and outputting the house layout structure diagram of the target house. Thus, the structure data of the target house is obtained through the point cloud data, the house layout structure diagram is automatically drawn, and the accuracy of house measurement is improved.