1. A NEW SHAPE-ADAPTIVE DCT FOR CODING OF ARBITRARILY SHAPED IMAGE SEGMENTS Wee Kok NG and Zhiping LIN School of Electrical and Electronic Engineering, Nanyang Avenue Nanyang Technological University, Singapore 63798 ICASSP ‘00

2. OUTLINE Shape-adaptive DCT for generic coding of videoShape-adaptive DCT for generic coding of video –Sikora, T.; Makai, B. Circuits and Systems for Video Technology, IEEE Transactions on Volume: 5 1, Feb. 1995, Page(s): 59 -62 Boundary block-merging (BBM) technique for efficient texture coding of arbitrarily shaped objectBoundary block-merging (BBM) technique for efficient texture coding of arbitrarily shaped object –Joo-Hee Moon; Ji-Heon Kweon; Hae-Kwang Kim Circuits and Systems for Video Technology, IEEE Transactions on Volume: 9 1, Feb. 1999, Page(s): 35 -43

3. SA-DCT

4. Covariances between two columns

6. SA-DCT

7. Result

8. Boundary Block-Merging (BBM) LPE & Zero Padding Block Merging

9. Padding

10. How Block Merging ?

11. Working with MPEG-4 Encoder

13. The Proposed new method DC adjustments for SA-DCT

15. BBGM

16. The BBGM-SA-DCT Algorithm