【文件属性】:
文件名称:Moveable Interactive Projected Displays Using Projector Based Tracking
文件大小:3.12MB
文件格式:PDF
更新时间:2012-01-03 04:00:29
Projector Tracking
Video projectors have typically been used to display images
on surfaces whose geometric relationship to the projector
remains constant, such as walls or pre-calibrated surfaces.
In this paper, we present a technique for projecting content
onto moveable surfaces that adapts to the motion and
location of the surface to simulate an active display. This is
accomplished using a projector based location tracking
techinque. We use light sensors embedded into the
moveable surface and project low-perceptibility Graycoded
patterns to first discover the sensor locations, and
then incrementally track them at interactive rates. We
describe how to reduce the perceptibility of tracking
patterns, achieve interactive tracking rates, use motion
modeling to improve tracking performance, and respond to
sensor occlusions. A group of tracked sensors can define
quadrangles for simulating moveable displays while single
sensors can be used as control inputs. By unifying the
tracking and display technology into a single mechanism,
we can substantially reduce the cost and complexity of
implementing applications that combine motion tracking
and projected imagery.