ผู้ให้สัมมนา

1. ผู้ให้สัมมนา นายธเนศ เกษศิลป์ รหัส 51312306 ภาควิชานิติวิทยาศาสตร์ คณะวิทยาศาสตร์ มหาวิทยาลัยศิลปากร

2. Reconstructing shredded documents through feature matching

3. Introduction

5. 1. Introduction 2.presents an overview of the proposed methodology. 3.describes the feature set we have used to carry out the local matching. 4.shows how we compute the similarity between the polygons as well as the global search algorithm. Finally 5. reports the experimental results and Section 6. present some perspectives of future works and concludes this work.

6. Different kinds of shredding.

7. The block diagram of the proposed methodology

8. Inner and outer boundaries produced by shredding

9. Inner and outer boundaries produced by shredding.

10. Angle features extracted from the polygon.

11. Description of the feature vector

12. Similarity between angles.

13. Distance features extracted from the polygon.

14. Best matching (a) fragments i and j and (b) new fragment Fijwhere three vertices were removed.

15. Steps of the document reconstruction.

17. Examples of the documents in the database.

18. Examples of a document totally reconstructed: (a) fragments and (b) document reconstructed.

19. Performance of the proposed methodology in reconstructingdocuments shredded by hand. 3–16 fragments 1 cm x 1 cm to 5 cm x 5 cm

20. สวัสดี