Obstacle detection having enhanced classification
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
Mar 31, 2005
filing date -
Mar 31, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for sensing an obstacle comprises transmitting an electromagnetic signal from a mobile machine to an object. A reflected electromagnetic signal is received from the object to determine a distance between the object and the mobile machine. An image patch is extracted from a region associated with the object. Each image patch comprises coordinates (e.g., three dimensional coordinates) associated with corresponding image data (e.g., pixels). If an object is present, image data may include at least one of object density data and object color data. Object density data is determined based on a statistical measure of variation associated with the image patch. Object color data based on the color of the object detected with brightness normalization. An object is classified or identified based on the determined object density and determined object color data.
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