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A visual surveillance using real-time curve evolution based on the level-set method and pan-tilt camera. Dept. of Visual Contents, Dongseo University 2008. 11. 24 Seung Il Han hs12@dit.dongseo.ac.kr. Outline. Objective Method of Real-time curve evolution
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A visual surveillance using real-time curve evolution based on the level-set method and pan-tilt camera Dept. of Visual Contents, Dongseo University 2008. 11. 24 Seung Il Han hs12@dit.dongseo.ac.kr
Outline • Objective • Method of Real-time curve evolution • Composition of real-time curve evolution • Advanced curve evolution method • The proposed system • Binary process • Active contour • Experiment • Conclusion • REFERENCE INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr
Objective < Pan&Tilt Camera> < Level Set> < Proposed > < Result of subtraction> INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr
Image subtraction < Background subtraction > < Near frame subtraction > 4 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
1. Method of Real-time curve evolution INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr
Composition of real-time curve evolution 6 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Process of real-time curve evolution < Advanced curve evolution> 7 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
8 2. The Proposed system INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
The proposed system < Flow chart > 9 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
The proposed system 10 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
When to move the camera < Pan & Tilt control> 11 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
12 3. Experiment & Conclusion INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Experiment < The proposed method > < Conventional method > 13 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Experiment < Continuous frame of proposed case > 14 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Experiment < Continuous frame of conventional case> 15 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Experiment < Center point in conventional case > < Center point in proposed case > 16 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
Conclusion 17 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
References • [1] Yonggang Shi, William Clem Karl, “A Real-Time Algorithm for the Approximation of Level-Set-Based Curve Evolution”, vol.17, no.5, pp. 645-656, IEEE transactions on image processing, May 2008. • [2] S.Osher and J.Sethian, “Fronts propagation with curvature dependent speed: Algorithms based on Hamilton-Jacobi formulations” J.Comput. Phys., vol. 79, pp. 12-49, 1988. • [3] D.Peng, B.Merriman, S.Osher, H.Zhao, M.Kang, “APDE-based fast local level set method,” J. Comput. Phys., vol. 155, pp. 410-438, 1999. • [4] S.Osher, R.Fedkiw, “Level-Set Methods and Dynamic Implicit Surfaces.” pp. 17-24, pp. 119-137, New York: Springer Verlag, 2002. • [5] J.Sethian, “Level-Set Methods and Fast mat-ching Methods: Evolving Interfaces in Computat-ional Geometry, Fluid Mechanics, Computer Vision, and Materials Science.”, Cambridge, U.K.: Cambridge Univ. Press, 1999. 18 INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02
19 Thank You INSTITUTE OF AMBIENT INTELIGENT, Han Seung Il, Dongseo Univ, E-mail : hs12@dongseo.ac.kr 2014-09-02