1. SoC Seminer
201001878 박인수
RoManCe 2014

2. Simple Shape Detection
Hough Transform
푦 = −
푐표푠휃
푠푖푛휃
푟
푠푖푛휃
푥 + (
)
( 휃 ∈ 0, 2휋 and r < 0 )

3. Simple Shape Detection

4. Color extraction
R G B CMKY
Color Spaces
YIQ / YCbCr

5. Color extraction
R G B

6. Feature Detection

7. Feature Detection
SIFT
Scale-Invariant Feature Transform
퐷 푥, 푦, 휎
= 퐿 푥, 푦, 푘휎푘푖 − 퐿(푥, 푦, 푘휎푗)

8. Feature Detection
Difference of Gaussian
Laplacian of Gaussian
BLOB Detection
Determinant of Hessian
...

9. Thank you very much!
The E N D