This paper describes the configuration and evaluation of a CCD-based biostereometric system at the Department of Orthodontics, Kings College Dental Hospital, London. The system has been designed to allow rapid and accurate measurement of facial soft-tissue shape with a minimum of traditional photogrammetric training. This has been achieved by automatic camera calibration and stereo matching, performed on a Sun Microsystem 3/160 workstation. In summary, the characteristics of the system are: (a) non-contract three-dimensional (3D) measurement of soft-tissue; (b) de-skilled, requiring little or no photogrammetric training; (c) rapid data acquisition, combined with slower off-line processing; (d) processing of resulting 3D surface information to yield cross-sections; (e) surface measurement accurate to within 0.5 mm. Accuracy assessment was performed using a manual electromechanical non-contact measurement device with precision exceeding the requirement of the biostereometric system.

This paper describes an intelligent fuzzy logic algorithm implemented in a microcomputer-based device for use in Constraint-Induced Movement Therapy for lower-extremity stroke rehabilitation. The device monitors the use of the affected leg and supplies the patient with feedback in order to encourage increased use of the affected leg during therapy. The prototype device facilitates the application of Constraint-Induced therapy and will enable the patient to continue to receive therapy even when they are out of the clinic.