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Multimedia Technology Research in HKUST

Multimedia Technology Research in HKUST. Oscar Au (PhD, Princeton University) Dept. of ECE, HKUST Clearwater Bay, Hong Kong Tel: +852 2358-7053 Email: eeau@ust.hk www.ee.ust.hk/~eeau. Oscar Au’s background. BA Sc - Toronto (82-86), MA/PhD/Postdoc - Princeton (86-92)

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Multimedia Technology Research in HKUST

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  1. Multimedia Technology Research in HKUST Oscar Au (PhD, Princeton University) Dept. of ECE, HKUST Clearwater Bay, Hong Kong Tel: +852 2358-7053 Email: eeau@ust.hk www.ee.ust.hk/~eeau

  2. Oscar Au’s background • BA Sc - Toronto (82-86), MA/PhD/Postdoc - Princeton (86-92) • Professor, HKUST (1992 to now). • Director, Multimedia Technology Center, HKUST. • Associate Editor of 6 journals: IEEE TCSVT, IEEE TIP, IEEE TCAS-1, JSPS, JMM, JFI • Chair of IEEE CAS MSATC, Vice Chair/Chair of IEEE SP MMSP TC, member of IEEE CAS VSPC/DSP TC, IEEE SP IVMSP TC, IEEE ComSoC MMTC • Steering Committee of IEEE TMM/ICME. IEEE Fellow/DLP. • General Chair, PCM 2007/PV 2010/ICME 2010. • Host MPEG in 1/2005. • 320 technical papers. 80 patents filed. 9 granted. 3 book chapters. • 67 MPEG/HEVC/AVS contributions. Several accepted into MPEG4, AVS and HEVC. • Forensic expert. 7 press conferences. Talks/media interviews.

  3. My multimedia expertise • Video: coding (MPEG-1/2/4, H.261/3/4, AVS), transcoding, enhancement, error resilience/concealment, denoising, deinterlacing, HDR, SVC, MVC, 3DTV, DVC, GPU video processing, depth estimation, view interpolation, subpixel rendering, white balancing, color demosaicking, compressive sensing, light weight encryption, watermarking, motion estimation, rate control, perceptual quantization • Image: coding (JPEG, JPEG2000), watermarking, restoration, enhancement, processing • Audio/speech: coding, watermarking, processing • Special achievement: Our fast motion estimation technology was accepted into MPEG-4. Up to 8000 times faster with same quality. First ever in Hong Kong and China.

  4. Video Processing • Standard-based image/video compression for SDTV/ HDTV: MPEG-1/2/4, H.261/3/4, AVS, HEVC, etc. • Patented technologiesaccepted into standard: 1 for MPEG-4, 2 for AVS, 2 for HEVC • Video transcoding, ITF, HKD 4,000,000, contract research • Watermarking, light-weight encryption, forensics: ~10 patents, ITF, HKD 7,000,000. • Fast motion estimation, ~5+ patent, HKTIIT, HKD 10,000,000 • 3DTV, free viewpoint TV, distributed/scalable Video coding • Denoising, deinterlacing, error resilience, enhancement • Hardware-friendly algorithms for GPU and ASIC, Vision chip • ~80 patents, IEEE Fellow, Associate Editors

  5. Image Processing Capture / Display - subpixel processing (contract + GRF, HKD 1,000,000) • High dynamic range (HDR) imaging • Subpixel rendering • Automatic white balancing (AWB) • Color interpolation (demosaicing) • Denoising, enhancement, restoration • Watermarking, data hiding, forensic • Halftone image • Texture synthesis • Segmentation,

  6. Video coding (encoder optimization) • Fast motion estimation, PMVFAST • Fast subblock ME • Fast multi-frame ME • Subpixel ME • Fast intra-prediction • Luma/chroma coding • Rate control (block level), R-D modeling • Rate allocation (frame level)

  7. Video coding related issues • Denoising – temporal, spatial, inter-color • Deinterlacing • Deblocking • Color processing • Transcoding • Error resilience

  8. GPU/Hardware • GPU-based processing • ME, intra prediction • Hardware architecture (SW/HW co-design) • ME, deblocking, demosaicking, • Filtering, subpixel rendering • Data dependency, data loading, data re-use, low power, low latency, reconfigurability

  9. Beyond simple video coding • Scalable video coding • Distributed video coding • Multiview video coding • Intra-prediction • Subblock motion estimation • Multiple reference frame motion estimation • Subpixel motion estimation • Rate control • JPEG2000 optimization

  10. Imaging • Demosaicking • Automatic white balancing • Color correction • Subpixel rendering • High dynamic range imaging • Compressive sensing • Audio: variable speed playback • Audio: coding, MP3, AAC HE, SBR • Speech: recognitions

  11. Security/forensics/others • Image/halftone watermarking • Attacks and steganography • Capacity estimation • Image forensics • Light-weight encryption • Encrypted domain processing

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