1. A method of coordinating a three-dimensional (3D) motion-capture of at least one hand by a network of 3D motion-capture sensors having overlapping fields of view for a generation of a 3D model of the hand, the method comprising: designating a first 3D motion-capture sensor among three or more 3D motion-capture sensors as having a master frame of reference, and wherein each 3D motion-capture sensor of the three or more 3D motion-capture sensors: (i) includes a plurality of cameras, (ii) has networked connectivity to other 3D motion-capture sensors of the three or more 3D motion-capture sensors and (iii) is located at a corresponding fixed vantage point thereby enabling the 3D motion-capture sensor to monitor a portion of a monitored space falling within a field of view of the 3D motion-capture sensor; observing, by the first 3D motion-capture sensor and at least one other 3D motion-capture sensor of the three or more 3D motion-capture sensors, 3D motion of any hand of any dimension in the monitored space as the any hand of any dimension passes through at least two overlapping fields of view of the first 3D motion-capture sensor located at the corresponding fixed vantage point and the at least one other 3D motion-capture sensor located at the corresponding fixed vantage point; utilizing the networked connectivity between the first 3D motion-capture sensor and the at least one other 3D motion-capture sensor to synchronize a capture of multiple pairs of images of the any hand of any dimension including at least a first pair of images and a second pair of images captured within the at least two overlapping fields of view by the plurality of cameras of the first 3D motion-capture sensor and the plurality of cameras of the at least one other 3D motion-capture sensor; using the captured pairs of images of the any hand of any dimension to automatically calibrate the at least one other 3D motion-capture sensor to the master frame of reference of the first 3D motion-capture sensor based on a determined shift between corresponding points on the any hand of any dimension; generating the 3D model of the any hand of any dimension by capturing images from the automatically calibrated 3D motion-capture sensors and constructing the 3D model using the captured images; and calibrating to the master frame of reference by calculating one or more rigid geometric coordinate transformations between pairs of the 3D motion-capture sensors.