Abstract
This paper investigates the possibility of avoiding the HEVC intra-frame drift effect induced by additive modifications of the luma DCT/DST coefficients. The main novelty consists in solving the intra-drift problem in its general form: starting from the equations defining the 35 intra-prediction modes and the DCT/DST computation, a mask multiplicative matrix cancelling the intra-frame drift effect is computed. The relevance of the advanced method with respect to the state of the art studies is illustrated, discussed and quantitatively assessed.
| Original language | English |
|---|---|
| Pages (from-to) | 56-67 |
| Number of pages | 12 |
| Journal | Journal of Visual Communication and Image Representation |
| Volume | 62 |
| DOIs | |
| Publication status | Published - 1 Jul 2019 |
Keywords
- Additive modification
- HEVC
- Intra-drift free
- Masking matrix
- Theoretical computation
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