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Paper TuD07.2

Held, David (Stanford University), Levinson, Jesse (Stanford University), Thrun, Sebastian (Stanford University)

A Probabilistic Framework for Car Detection in Images using Context and Scale

Scheduled for presentation during the Regular Session "Perception for Autonomous Vehicles" (TuD07), Tuesday, May 15, 2012, 16:45−17:00, Meeting Room 7 (Remnicha)

2012 IEEE International Conference on Robotics and Automation, May 14-18, 2012, RiverCentre, Saint Paul, Minnesota, USA

This information is tentative and subject to change. Compiled on December 11, 2017

Keywords Intelligent Transportation Systems, Computer Vision for Robotics and Automation

Abstract

Detecting cars in real-world images is an important task for autonomous driving, yet it remains unsolved. The system described in this paper takes advantage of context and scale to build a monocular single-frame image-based car detector that significantly outperforms the baseline. The system uses a probabilistic model to combine multiple forms of evidence for both context and scale to locate cars in a real-world image. We also use scale filtering to speed up our algorithm by a factor of 3.3 compared to the baseline. By using a calibrated camera and localization on a road map, we are able to obtain context and scale information from a single image without the use of a 3D laser. The system outperforms the baseline by an absolute 9.4% in overall average precision and 11.7% in average precision for cars smaller than 50 pixels in height, for which context and scale cues are especially important.

 

 

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