ELIS – Multimedia Lab HEVC in JEG-Hybrid.

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Presentation transcript:

ELIS – Multimedia Lab HEVC in JEG-Hybrid

2/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC SRC selection 10 SRC similar to the AVC experiment within JEG-Hybrid

3/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC

4/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC Encoding only HEVC: HM11.1 HRC Bitrate 500kbps, 1Mbps, 2Mbps, 4Mbps, 8Mbps, 16Mbps Rate control Picture adaptive, CU adaptive QP 26, 32, 38, 46 GOP 1, 2, 4, 8 Intra period 8, 16, 32, 64 Random access IDR (closed-GOP intra), CDR (open-GOP intra) Resolution 1920x1080, 1280x720, 960x544 Slices 0, 2, 4, 1500byte

5/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC 1: 2: 4: 8: GOP structures IBBBB IBBBB IBBBB BBBB IBBBB

6/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC HEVC sequences generated Corresponds to 292 GB of sequences PVS generation status

7/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC In progress: Peak Signal-to-Noise Ratio (PSNR) Structural Similarity Index (SSIM) Video Quality Metric (VQM) Visual Information Fidelity (VIF) Help needed for: SwissQual’s Metric Tetra Video Quality Metric (TetraVQM) MOtion-based Video Integrity Evaluation (MOVIE) Full-reference metric calculation

8/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC Convert bitstream information in XML format HM 11.1 modified to generate HMIX file Small differences with JM HMIX Needs further improvement HMIX generation

9/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC NAL type SliceHeader SliceType POC SliceQP RPS: RefPOC CU CUQP PU MV RefPOC IntraDir HMIX generation

10/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC Blockiness Blurriness Exposure Noisiness Flickering Spatial Activity (Intensity) Temporal Activity (Intensity) Spatial Correlation Energy Homogeneity Variance Contrast Colour Layout Descriptor Edge Histogram Descriptor No-reference indicators

11/10 ELIS – Multimedia Lab JEG-Hybrid: HEVC Further encode HEVC PVS Further calculate full-reference metrics on PVS as ground truth Start with calculating no-reference indicators on PVS Create a common AVC-HEVC model based on previously calculated metrics and HMIX information Future work