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Interlayer simplified depth coding for quality scalability on 3D high efficiency video coding.

Mengmeng Zhang1, Hongyun Lu1, Huihui Bai2

  • 1North China University of Technology, No. 5 Jin Yuanzhaung Road, Shijingshan District, Beijing 100144, China.

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Summary
This summary is machine-generated.

This study introduces a new scalable extension for High Efficiency Video Coding (HEVC) 3D video. The simplified depth coding (SDC) method significantly reduces data bits for depth maps, improving overall performance.

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Area of Science:

  • Video compression technologies
  • 3D video processing
  • Digital signal processing

Background:

  • High Efficiency Video Coding (HEVC) is a standard for video compression.
  • 3D video requires efficient representation of depth information.
  • Scalable video coding allows adaptation to different network conditions and device capabilities.

Purpose of the Study:

  • To propose a quality scalable extension design for HEVC 3D video.
  • To reduce the bit rate for depth map representation in scalable 3D video.
  • To enhance the coding performance of 3D video through interlayer prediction.

Main Methods:

  • A novel interlayer simplified depth coding (SDC) prediction tool is introduced.
  • Exploiting correlation between coding layers for depth map representation.
  • Utilizing coded prediction quadtree and texture data from base layer blocks.
  • Extending multiloop decoder solution for texture views and depth maps via interlayer texture prediction.

Main Results:

  • The proposed interlayer simplified depth coding (SDC) prediction tool achieved an average Bjøntegaard Delta bitrate decrease of 54.4% compared to simulcast.
  • Significant rate savings were observed, confirming the method's effectiveness.
  • The multiloop decoder solution was successfully extended to the scalable scenario for texture and depth maps.

Conclusions:

  • The proposed scalable extension design for HEVC 3D video offers significant improvements in coding efficiency.
  • The interlayer simplified depth coding (SDC) prediction tool effectively reduces bit rate for depth maps.
  • The integration of multiloop decoder solutions enhances the performance of scalable 3D video compression.