3results about How to "Increase calculation rate" patented technology

This invention provides a method, apparatus, electronic device, and storage medium for determining GeoHash codes. First, the minimum bounding rectangle of the region to be identified is determined. Next, the GeoHash codes corresponding to the vertex grids containing any three vertices of the minimum bounding rectangle are determined. Then, based on the GeoHash codes of the three vertex grids, a preset character table is looked up multiple times to determine the GeoHash codes of all grids within the minimum bounding rectangle. Finally, from the GeoHash codes of all grids, the GeoHash codes of each target grid that overlaps with the region to be identified are selected. In this invention, the preset character table includes 32 characters from a Base32 encoding table, and the positions of these 32 characters in the preset character table are determined based on the encoding principle of GeoHash codes. Therefore, the GeoHash codes of all grids within the minimum bounding rectangle can be determined by looking up the table. Compared to the multiple encoding conversions in existing technologies, this invention uses a table lookup method, reducing the computational load and improving the computational speed.

The application discloses a food material recognition method of an intelligent refrigerator and a related device. The method obtains a to-be-processed image by performing a defogging process on a target image. The stored food materials in the to-be-processed image are recognized. If the food material names of the stored food materials are not recognized, the to-be-processed image is compared with a stored food material image set in terms of similarity. In the above process, the to-be-processed image after the defogging process is recognized first to improve the recognition ability of the stored food materials. Since the stored food material image set is a collection of stored food material images corresponding to each food material stored in the intelligent refrigerator, when the stored food materials after the defogging process cannot be recognized, the to-be-processed image can be compared with the stored food material image set in terms of similarity to obtain a target food material image most similar to the to-be-processed image. Then, the food material name of the stored food material in the to-be-processed image is determined according to the food material corresponding to the target food material image, so that the food material misrecognition rate is reduced.

This invention discloses a method for obtaining satellite laser timing pointing. By using the six root numbers of the satellite orbit, the nadir trajectory and foot point trajectory of the satellite are obtained. Combined with the elevation database, the continuous laser pointing of the satellite is calculated, which greatly simplifies the laser pointing calculation process and improves the simulation calculation speed. The input used in this invention does not involve complex parameters such as laser attitude angle. Only TLE ephemeris and elevation data need to be input. The requirements for the function configuration of the scene simulation software are not high, and the calculation cost is low.