Fingertip blood sampling point positioning method based on vein segmentation and angular point detection

Abstract

The invention belongs to the technical field of medical image processing and computer vision, and particularly relates to a fingertip blood sampling point positioning method based on vein segmentation and angular point detection, and the method comprises the steps: obtaining a fingertip vein image; extracting features of the fingertip vein image, and fusing the extracted features to obtain a fused feature map; performing segmentation processing on the fused feature map to obtain a fingertip vein region; and carrying out vein network refinement and angular point detection processing on the fingertip vein area, and positioning a blood sampling point according to a processing result. Parameters of the Gabor filter bank are adaptively set by adopting local differential excitation of the finger vein image, the space-frequency resolution is dynamically adjusted, and more vein network feature details can be extracted while noise interference is avoided; and, in addition, the vein intersections are recognized through angular point detection to serve as blood sampling points, extrusion is avoided during fingertip blood sampling, the bleeding amount is larger, and the accuracy of fingertip blood detection is effectively improved.

Description

technical field [0001] The invention belongs to the technical fields of medical image processing and computer vision, and in particular relates to a method for locating fingertip blood collection points based on vein segmentation and corner point detection. Background technique [0002] Fingertip blood sampling is a very common method of collecting blood for testing. The traditional fingertip blood sampling method mainly relies on medical staff to manually collect blood after judging the fingertip vein. Compared with manual blood collection by medical staff, smart fingertip blood collection can greatly reduce the workload of medical staff, improve work efficiency, and at the same time prevent medical staff from being infected with infectious diseases. In the process of fingertip blood collection, due to the lack of capillaries in the fingertips, the fingertips often need to be squeezed when the amount of bleeding is not enough. The interstitial fluid will seep into the blood...

AI Technical Summary

Problems solved by technology

In the process of fingertip blood collection, due to the lack of capillaries in the fingertips, the fingertips are often squeezed when the amount of blood is not enough. The tissue fluid will seep into the blood, resulting in the dilution of the blood sample and inaccurate test results.

Images