3results about How to "Accurate discrimination" patented technology

This invention discloses a graphic calibration system and method for CNC mold machining. The system includes: a data acquisition module configured to receive CNC machining tasks and acquire graphic data and measurement data of the mold to be machined based on the machining tasks; a data calibration module configured to perform geometric feature calibration on the graphic data based on preset calibration data, generate calibrated calibrated graphic data, and spatially register the measurement data and calibrated graphic data to obtain deviation data; a data processing module configured to map the deviation data to a machining parameter library in the machining task, calculate the correction values ​​of each machining parameter to obtain calibration parameters; and a data feedback module configured to feed back the calibrated graphic data and / or calibration parameters to the system, and perform the remaining graphic data input and machining parameter input for the machining task. This invention significantly improves mold machining accuracy and production efficiency, providing a high-confidence graphic input benchmark for CNC mold machining.

This invention discloses a fake image detection method based on artifact decomposition. The method includes acquiring the image to be detected and inputting it into a trained three-branch artifact-aware encoder (scene consistency branch, imaging realism branch, and signal naturalness branch) for feature extraction, resulting in three artifact reflection maps. A trained cross-dimensional gated collaborative fusion module is used to fuse the features of the three artifact reflection maps, generating a unified artifact embedding representation. This unified artifact embedding representation is then input into a trained classification head, and the label classification head of the classification head outputs the true / false prediction probability of the image to be detected. This fake image detection method solves the problems of existing technologies, such as inability to uniformly detect multi-source heterogeneous fake images, poor generalization ability, and susceptibility to overfitting.

The application discloses a kind of marker compounds and screening method for distinguishing black tea origin and a kind of black tea origin identification method, belong to tea distinguishing technical field, the application first filters out kaempferol 3-O-(galloyl)-glucoside as the marker for distinguishing black tea origin as marker.It is stable to exist and higher in content in Sri Lanka black tea, while in the representative black tea in China, the content is significantly lower or difficult to detect, and the difference has stability and significance.The identification method of the application comprises: preparing standard extract of the black tea sample to be tested, and using high performance liquid chromatography-mass spectrometry to qualitatively and quantitatively analyze the extract.The scientific and accurate discrimination of the geographical origin of black tea can be realized by detecting the presence or absence of the marker compound or the amount of the marker compound.