title: Posture-based motion planning: applications to grasping.
abstract: This article describes a model of motion planning instantiated for grasping. According to the model, one of the most important aspects of motion planning is establishing a constraint hierarchy--a set of prioritized requirements defining the task to be performed. For grasping, constraints include avoiding collisions with to-be-grasped objects and minimizing movement-related effort. These and other constraints are combined with instance retrieval (recall of stored postures) and instance generation (generation of new postures and movements to them) to simulate flexible prehension. Dynamic deadline setting is used to regulate termination of instance generation, and performance of more than one movement at a time with a single effector is used to permit obstacle avoidance. Old and new data are accounted for with the model.
authors.affiliation: Department of Psychology, Pennsylvania State University, 642 Moore Building, University Park, Pennsylvania 16802, USA. dar12@psu.edu
authors.forename: D A
authors.initials: DA
authors.lastname: Rosenbaum
authors.forename: R J
authors.initials: RJ
authors.lastname: Meulenbroek
authors.forename: J
authors.initials: J
authors.lastname: Vaughan
authors.forename: C
authors.initials: C
authors.lastname: Jansen
mesh_terms: D001288:Attention; D004215:Distance Perception; D006801:Humans; D007699:Kinesthesis; D011939:Mental Recall; D009949:Orientation; D011187:Posture; D011597:Psychomotor Performance; D011601:Psychophysics