Authors:
Wim Abbeloos
and
Toon Goedemé
Affiliation:
KU Leuven, Belgium
Keyword(s):
Time of Flight, Range Image, 2.5D, Thermal Infrared, Thermopile Array, Calibration, Camera, Sensor, Data
Fusion, Measurement Errors, Scattering, Multi-path Interference.
Related
Ontology
Subjects/Areas/Topics:
Control and Supervision Systems
;
Image Processing
;
Informatics in Control, Automation and Robotics
;
Robotics and Automation
;
Sensors Fusion
;
Signal Processing, Sensors, Systems Modeling and Control
;
Vision, Recognition and Reconstruction
Abstract:
Combining new, low-cost thermal infrared and time-of-flight range sensors provides new opportunities. In
this position paper we explore the possibilities of combining these sensors and using their fused data for
person detection. The proposed calibration approach for this sensor combination differs from the traditional
stereo camera calibration in two fundamental ways. A first distinction is that the spectral sensitivity of the two
sensors differs significantly. In fact, there is no sensitivity range overlap at all. A second distinction is that their
resolution is typically very low, which requires special attention. We assume a situation in which the sensors’
relative position is known, but their orientation is unknown. In addition, some of the typical measurement
errors are discussed, and methods to compensate for them are proposed. We discuss how the fused data could
allow increased accuracy and robustness without the need for complex algorithms requiring large amounts of
computat
ional power and training data.
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