2 results about "Computer aided detection" patented technology

This application provides a computer-aided detection and diagnosis system for breast microcalcifications, comprising: an acquisition unit for acquiring at least two breast X-ray images of the same breast tissue from different projection angles as a target view group; a region detection unit for detecting suspected microcalcification candidate regions in each single view to obtain a candidate region set corresponding to each single view; based on the geometric projection relationship between different views in the target view group, performing cross-view pairing and association on candidate regions from different views to establish candidate region pairs characterizing the image appearance of the same potential microcalcification at different projection angles; an extraction module for extracting cross-view consistency features for each candidate region pair; a calculation unit for fusing the cross-view consistency features corresponding to each candidate region pair and its internal image features in each single view to form an enhanced feature vector of the potential microcalcification; and obtaining the benign or malignant classification result of the corresponding potential microcalcification.

This invention relates to the fields of intelligent manufacturing and computer-aided inspection technology, and particularly to a system for constructing and reasoning a knowledge base for precision machining geometric error inspection operators. The system includes a feature parsing module, used to read a 3D solid model containing product geometric technical specifications, extract geometric surface features and associated tolerance specifications from the model, wherein the tolerance specifications include tolerance thresholds, and convert the geometric surface features and tolerance specifications into semantic ontology instances, outputting a set of element instances. In this invention, by automatically parsing the geometric features and geometric tolerance semantics in the 3D solid model, and combining this with actual point cloud data obtained from on-machine measurement for error assessment and reverse calculation of compensation parameters, a closed-loop mapping from design tolerance semantics to CNC system compensation instructions is achieved. This enables the machining equipment to automatically correct the tool position and coordinate system offset based on actual inspection results, thereby improving the machining accuracy and consistency of parts.