Zhijun Lei

About Zhijun Lei

Extensive knowledge and experience on video processing and encoding algorithm research and development. Familiar with various coding standards, such as H263, MPEG2, MPEG4, H264, SVC, HEVC, VP9 and AV1. Have worked on many encoder algorithms such as motion estimation, mode decision, bit rate control, deblocking, quality tuning, etc.+ Extensive knowledge and hand-on experience on quality and performance improvement for hardware and software video encoder/transcoder pipelines. Familiar with major software interfaces for video transcoding, such as OpenMax, DXVA, ffmpeg and Intel MediaSDK. Familiar with video streaming protocols, such as HLS and DASH.+ Technical leadership on leading multiple teams through entire product cycle, including planning, path finding, implementation, validation, etc,+ Proficient with C/C++, Perl, Python, etc. Familiar with HW/SW co-design, multithreaded software architecture and threading framework. Familiar with GPU Compute language and architecture such as OpenCL.+ Multiple US patents holders on video encoding algorithm. Contributors of multiple proposals for AV1 coding standard development.

Experience

1. Co-chair of Aom Testing Sub-group

   Alliance For Open Media Aomedia

   Jan 2021 — Present · Portland, OR, US

Education

• University of Ottawa

  Ph.D, Computer Science

  1999 — 2003

• Beijing University of Posts and Telecommunications

  Master, Computer Science

  1996 — 1999

• Dalian University of Technology

  BS, computer science

  1992 — 1996

Skills

• Algorithms
• Vc-1
• Computer Science
• Video Coding
• Computer Vision
• H.264
• Computer Architecture
• Device Drivers
• Video Processing
• Multi-Core
• Debugging
• Vp9
• C++
• Video Compression
• Digital Signal Processors
• Svc
• Hevc
• Arm
• Transcoding
• Gpu
• Image Processing
• Intel
• Multithreading
• Processors
• Embedded Software
• Video Codec
• Mpeg
• Soc
• Video Encoding
• System on a Chip (Soc)