We experimentally demonstrate a simple, effective and intelligent scheme to obtain image monitoring of femtosecond laser processing of biological hard tissues. A simple mobile phone camera is adopted for imaging of different processing status of biological hard tissue. Subsequently, an automatic recognition method based deep learning is proposed to recognize the relationship between the optical images and manufacturing effect for the fast parameter optimization of laser processing. Correspondingly, the laser processing parameter could be well controlled to obtain qualified laser processing of biological hard tissue. These results indicate an efficient and accurate image monitoring route for intelligent femtosecond laser processing of biological
During the caries treatment, three-dimensional measurement of tooth profile and caries location is one of key steps in the therapeutic process of caries. We propose a three-dimensional vision measurement of tooth crown and dental caries with line structured light. First, an integrated calibration using right angled spot target is executed and the parameters are obtained rapidly. Subsequently, the profile of the tooth crown is reconstructed and the dental caries area is identified. The results show that the reprojection error could reach tens of micrometers and the caries’ area is measured as ~ 2.83 mm2. These results indicate high potential in the diagnosis and treatment of dental caries.
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