A computer-based method/system of dynamic category object recognition for estimating pose and/or positioning of target objects and target object's parts. The method/system may recognize a target object and the target object's parts. The method/system may segment and extract data corresponding to the target object and the target object's parts, and estimate the pose and positioning of the target object and the target object's parts using a plurality of stored object models. The dynamic method/system may supplement or modify the parameters of the plurality of stored object models and/or store learned object models. The learned object models assist in recognizing and estimating pose and/or positioning of newly encountered objects more accurately and with fewer processing steps. The method and system may include a processor, a sensor, an external device, a communications unit, and a database.