We have recently demonstrated a new approach to multiframe structure from motion from point features which, in the appropriate domain, provably reconstructs structure and motion correctly. The domain is one well suited to outdoor robot navigation scenarios where perspective eeects are large. In this paper, we describe a version of our approach adapted to an important special case of motion: tra...

A method to estimate the underlying motion and the structure of an unknown rigid object is presented. This approach differs from previous techniques in the relationship assumed between successive motions. With this assumption, the number of feature points can be reduced to only two which would otherwise be not interpretable by previous method[4] even if finitely many frames could be used. A clo...

stability and performance are two main issues in motion of bipeds. to ensure stability of motion, a biped needs to follow specific pattern to comply with a stability criterion such as zero moment point. however, there are infinity many patterns of motion which ensure stability, so one might think of achieving better performance by choosing proper parameters of motion. step length and step perio...

In this paper, forced vibration analysis of a single-layered graphene sheet (SLGS) under moving a nanoparticle is carried out using the non-local elasticity theory of orthotropic plate. The SLGS under moving the nanoparticle is placed in the elastic and viscoelastic foundation which are simulated as a Pasternak and Visco-Pasternak medium, respectively. Movement of the nanoparticle is considered...

We present a kinetic version of the Watanabe-Strogatz (WS) transform for vector models in this paper. From generalized WS-transform, we can reduce model into an ODE system. also obtain cross-ratio type constant motion functionals under suitable conditions. sufficient and necessary conditions existence suggested functionals. As application functional, provide instability bipolar states swarm sph...

aim: abnormal joint mobility is an important factor in movement dysfunction and physical disability. a general lack of descriptive details exists for measurements of hip rotation range of motion (rom). this study was designed to establish the influence of hip position on active and passive range of motion of the hip in external and internal rotation(ext & int rot). material & methods: ...

frozen shoulder is a glenohumeral joint disorder that perturbs movement because of adhesion and the existence of fibrosis in the shoulder capsule. platelet-rich plasma can produce collagen and growth factors, which increases stem cells and consequently enhances the healing. to date, there is no evidence regarding the effectiveness of platelet-rich plasma in frozen shoulder. a 45-year-old man wi...

objectives: spasticity and contracture in flexor muscles of the wrist may occur after stroke, especially in which early recovery did not appear. splints are prescribed to reduce spasticity and to prevent contracture after stroke. although there is a few research in this field. the aim of this study was to examine the impact of the extension splint on function, spasticity, and range of motion of...