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A NEW SHAPE-ADAPTIVE DCT FOR CODING OF ARBITRARILY SHAPED IMAGE SEGMENTS

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. OUTLINE. Shape-adaptive DCT for generic coding of video

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A NEW SHAPE-ADAPTIVE DCT FOR CODING OF ARBITRARILY SHAPED IMAGE SEGMENTS

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  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 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 object • Joo-Hee Moon; Ji-Heon Kweon; Hae-Kwang KimCircuits 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

  5. 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

  12. Working with MPEG-4 Encoder

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

  14. BBGM

  15. The BBGM-SA-DCT Algorithm

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