Research Area

Publication Projects Patents

Video Coding Standards

- HEVC/H.265
- VVC/H.266
- Post VVC

NNVC (Neural Network based Video Coding)

- Deep Learning based Intra Prediction
- Post filtering

VCM (Video Coding for Machine)

- Feature map generation
- Feature compression (CompressAI, VVC)
- Object detection/ segmentation (Detectron2)

6DoF Immersive Volumetric Video

- MIV (MPEG Immersive Video)
- Atlas generation
- Depth scaling

360 Video/VR

- 360 video coding
- 360 video projection - invalid region padding

NNR (Neural Network Compression)

- Low-rank approximation
- Local non-linear quantization

Video Coding Standard (MPEG, VCEG, JCT-VC)

- High Efficiency Video Coding (HEVC)
- Stereoscopic 3D video coding
- Scalable coding of UHD (Ultra High Definition) video
- Scalabel video coding (H.264/SVC)
- H.264/AVC

Media transport & delivery

- MMT (MPEG Media Transport) (for UHD)
- DASH (Dynamic Adaptive Streaming over HTTP)
- Signaling of service compatible stereoscopic 3D over MPEG-2 TS
- NRT delivery of stereoscopic 3D
- Delivery of SVC/MVC
- MPEG-2 TS based multiplexing for UHD

SVC Adaptation & Adaptive Streaming

- Packet-based adaptation of SVC MGS
- Metadata-based (MPEG-21 DIA) optimal/interoperable adaptation
- QoS-aware adaptive delivery of SBC over heterogeneity

Distributed Video Coding

- Wyner-Ziv DVC codec
- MV feedback based R-D optimized skip mode decision
- Scalable distributed video coding

UHDTV (Ultra High Definition TV)

- UHD (Ultra High Definition): 4K (3840x2160), 8K (7680x4320)
- HEVC (High Efficiency Video Coding)
  - JCT-VC (ISO/IEC MPEG & ITU-T VCEG Joint Collaborative Team on Video Coding)
  - UHD video coding

Stereoscopic 3D Video Coding

- NRT based 3DTV
  - Stereoscopic 3D video coding
  - MPEG MFC (Frame-Compatible Stereo Enhancement for AVC)

Scalable Video (H.264/AVC)

- SVC for heterogeneous delivery/consumption
  - Scalable extension of H.264/MPEG-4 AVC
  - One single SVC stream servers different user's needs, displays and networks links
    - Flexible combined spatial-temporal-quality scalability

SVC Applications

- UHD/HD in IPTV & Media Convergence

UHD/3D Transport & Delivery

- MMT (MPEG Media Transport) (for UHD)
- DASH (Dynamic Adaptive Streaming over HTTP)
- Signaling of service compatible stereoscopic 3D over MPEG-2 TS

UHDTV MPEG-2 TS Multiplexing

- 8K/4K UHDTV CODEC
  - Splitting 8K/4K UHD frame into 4 sub-frames
  - Based on parallel architecture
  - Requires multiplexing/synchronization of each sub-frame

SVC-Based Adaptive Streaming

- Optimal/interoperable dynamic adaptation (MPEG-21 DIA)
- Adaptation to time-varying network conditions
  - Temporal-quality adaptation to available bandwidth

DVC (Distributed Video Coding)

- Low-power new video coding
  - Source statistics are exploited by the decoder
  - Complexity is distributed from encoder into decoder
  - "up-link" applications

DSP-Based SVC Codec & Surveillance Video

- Embedded SVC codec
  - High-Performance Digital Media SoC
  - TM320DM6467T Davinci
- SVC-based suveillance video
  - NVR

Content-based video analysis

- Camera motion characterization in MPEG video
- Video summarization
  - MPEG-7, TV-Anytime
- Personalized TV

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