Fig. 1. Young's modulus of tissue constituents, structures, and organs

Fig. 2. System diagram of a typical viscoelastic measurement of biological tissues based on laser speckle

Fig. 3. Young's modulus measurement based on speckle contrast difference. (a) Measurement principle; (b) velocity calculation method; (c) Young's modulus of phantom with an inclusion

Fig. 4. (a) Speckle intensity autocorrelation curves measured during coagulation (at 0, 6, 10, 12 min) of a human blood sample; (b) changes of speckle autocorrelation time constant and viscoelasticity modulus during coagulation process of a human blood sample

Fig. 5. (a) White light photograph of a junctional nevus; (b) viscoelasticity photograph of a junctional nevus