Optical Sensing a Distance from a Range Sensing Apparatus and Method
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United States of America Patent
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Issued Date -
Nov 19, 2015
app pub date -
May 16, 2014
filing date -
May 16, 2014
priority date (Note) -
Abandoned
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Abstract
A method and a system for determining horizontal velocity of a construction vehicle and a distance from a range sensing apparatus to a surface is provided. In an embodiment, a plurality of video images of the surface generated by a video camera is received, an angular velocity is calculated by video processing, a distance from each of a plurality of laser rangefinders to the surface is measured, and linear horizontal velocity is calculated from angular velocity and distances.
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