对颈动脉的脉搏波进行测量, 是对心脑血管疾病进行科学预防和保健的基础。基于改进的水转印数字散斑场, 给出了三维数字图像相关测量系统对人体颈动脉的测量方法。根据人体皮肤颜色的特殊性, 采取适用于人体不同肤色的水转印数字散斑场的散斑制作方法, 并与人体表面自然散斑场进行了对比, 证明了水转印数字散斑场更加稳定、准确和高效。通过实验给出了人体颈动脉的波形、频率等基本信息, 并对颈动脉的全表面脉搏波时域和空域变形信息进行分析, 验证了该方法的有效性。研究工作可为心脑血管疾病的防治提供一定的参考。

Pulse wave measurement of carotid artery is the foundation of the prophylaxis and treatment of cardiovascular diseases. Three dimensional digital image correlation system is applied to measuring the human carotid artery based on the water transfer printing (WTP) technique, which can transfer optimized digital speckle patterns for different skin colors. Compared with natural textures of the skin, digital speckle patterns fabricated from the WTP technique are proved to be more stable, accurate and efficient. Experiments are performed to demonstrate the validity of the proposed method. Various information of the pulse wave such as shapes, frequencies and deformations in both time domain and spatial domain can be extracted from the full-field of carotid arterial surface. The research may be beneficial to cardiovascular disease monitoring.