Compression and Security of Surveillance VideosExercise 4 – Line Detection

M993010115 陳威佑

Background Experiment results

Outline

Background

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1. 利用蠻力法對下圖進行直線偵測2. 利用霍式轉換法對下圖進行直線偵測

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Image: Tile.raw Number of edge points: 4408 Distance threshold: 0.8 Vote threshold: dis_ep × 1.5 (dis_ep:兩邊點間距離 )

Number of line: 4182 Time spent: 942 sec

Experiment Result(蠻力法 )

Simulation environment:OS: Windows 7CPU: Intel® Core™ i5 M 450 @ 2.40GHzRAM: 2 GB

Image: Highway.raw Number of edge points: 2306 Distance threshold: 0.5 Vote threshold: dis_ep × 1 (dis_ep:兩邊點間距離 )

Number of line: 2366 Time spent: 183 sec

Experiment Result(蠻力法 )

Simulation environment:OS: Windows 7CPU: Intel® Core™ i5 M 450 @ 2.40GHzRAM: 2 GB

Image: Tile.raw Number of edge points: 3650 Angle increasing step: 1 ° Vote threshold: 160 Number of line: 13 Time spent: 0.549 sec

Experiment Result(霍式 )

Simulation environment:OS: Windows 7CPU: Intel® Core™ i5 M 450 @ 2.40GHzRAM: 2 GB

Image: Highway.raw Number of edge points: 2306 Angle increasing step: 1 ° Vote threshold: 160 Number of line: 6 Time spent: 0.354 sec

Experiment Result(霍式 )

Simulation environment:OS: Windows 7CPU: Intel® Core™ i5 M 450 @ 2.40GHzRAM: 2 GB

The End