一种近红外图像校正方法、装置、设备及存储介质
By using array block calibration and image correction methods to eliminate abnormal images, perform geometric correction and grayscale fitting, the problems of geometric deformation and uneven intensity of near-infrared images during the selected area laser melting forming process are solved, thereby improving the reliability and accuracy of image monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AIRCRAFT MFG
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
AI Technical Summary
During selective laser melting forming, near-infrared images are easily affected by factors such as uneven camera response, lens attenuation, and dust in the chamber, resulting in geometric deformation and uneven grayscale distribution. This makes it impossible to truly reflect the thermal state of the formed plane, affecting subsequent defect identification and process optimization.
By using array test block calibration, fusion image correction and grayscale surface fitting, abnormal images are removed, geometric correction and grayscale value calculation are performed, a continuous surface is fitted, an intensity correction image is generated, and the signal inhomogeneity problem caused by fixed interference is eliminated.
It effectively eliminates the problem of uneven strength caused by geometric deformation and fixation interference due to camera tilt, improves the reliability and accuracy of near-infrared image monitoring, and truly reflects the thermal state of the formed plane.
Smart Images
Figure CN122048747B_ABST