1/13/2016 1 Detection & Recognition of Alert Traffic Signs Chia-Hsiung (Eric) Chen Marcus Chen Tianshi Gao.

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Presentation transcript:

1/13/ Detection & Recognition of Alert Traffic Signs Chia-Hsiung (Eric) Chen Marcus Chen Tianshi Gao

CS223b Computer Vision Term Project Problem Statement 1/13/ Detection & recognition of alert traffic signs under different illumination, scale, and pose conditions

CS223b Computer Vision Term Project Approach: Feature Design 1/13/ Sub-BlockTemplate Total features = 14 x 15 x 8 = 1680

CS223b Computer Vision Term Project Approach: Training 1/13/2016 4

CS223b Computer Vision Term Project Approach: Classification & System Flow 1/13/2016 5

CS223b Computer Vision Term Project Experimental Result Smallest detectable size Stop: 20x20 Yield: 14x14 No left turn: 14x14 Do no enter: 20x20 Processing time for 640x480 image: ~30sec Detect signs under diff/extreme illumination cond. Scale, camera, pose invariant (< 30 degree) Detection rate > 95%, FP < 0.1% Based on our current test set 1/13/2016 6

Results Demonstration 1/13/2016 7

Illumination Invariance

CS223b Computer Vision Term Project

Pose Invariance

CS223b Computer Vision Term Project

Scale Invariance

CS223b Computer Vision Term Project

Other

CS223b Computer Vision Term Project

Thank You! 1/13/