Date of Original Version

2004

Type

Technical Report

Rights Management

All Rights Reserved

Abstract or Description

Mixed pixels are points in LADAR data which occur when the measurement beam intersects two objects at within a certain range of distances apart. The resulting return signal represents data from both objects; the laser electronics read this as a single point, but not at the real location of either object. As such, mixed pixels present an obstacle to accurate analysis of a scene. We present a survey of mixed pixel phenomena and a method of removing mixed pixels from scenes stored as 3-D points. Our method does not depend on the sensor used to originally collect the data, and is efficient and effective.

Comments

tech. report CMU-RI-TR-04-44, Robotics Institute

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