نتایج جستجو برای: rigid frame
تعداد نتایج: 140905 فیلتر نتایج به سال:
Robots are usually equipped with 3D range sensors such as laser line scanners (LLSs) or lidars. These acquire a full scan in by manner while the robot is motion. All lines can be referred to common coordinate frame using data from inertial sensors. However, errors noisy measurements and inaccuracies extrinsic parameters between scanner also projected onto shared frame. This causes deformation f...
Most rigid formation controllers reported in the literature aim to only stabilize a rigid formation shape, while the formation orientation is not controlled. This paper studies the problem of controlling rigid formations with prescribed orientations in both 2-D and 3-D spaces. The proposed controllers involve the commonly-used gradient descent control for shape stabilization, and an additional ...
3D non-rigid registration is fundamental for tracking or reconstruction of 3D deformable shapes. Fast methods for 3D non-rigid registration are particularly interesting for markerless augmented reality applications, in which the object being used as a natural marker may undergo a non-rigid user interaction. Here, we present a multi-frame adaptive algorithm for 3D non-rigid registration implemen...
In IVUS imaging, constant linear velocity and a constant angular velocity of 1800 rev/min causes displacement of the calcium in subsequent image frames. To overcome this error in intravascular ultrasound video, IVUS image frames must be registered prior to the lesion quantification. This paper presents a comprehensive comparison of four registration methods, namely: Rigid, Affine, B-Splines and...
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