J. Ohm

Publications153
h-index32
Citations12,951
Highly Influential Citations1,415
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Overview of the High Efficiency Video Coding (HEVC) Standard
TLDR
The main goal of the HEVC standardization effort is to enable significantly improved compression performance relative to existing standards-in the range of 50% bit-rate reduction for equal perceptual video quality.
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Color and texture descriptors
TLDR
An overview of color and texture descriptors that have been approved for the Final Committee Draft of the MPEG-7 standard is presented, explained in detail by their semantics, extraction and usage.
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Comparison of the Coding Efficiency of Video Coding Standards—Including High Efficiency Video Coding (HEVC)
TLDR
The results of subjective tests for WVGA and HD sequences indicate that HEVC encoders can achieve equivalent subjective reproduction quality as encoder that conform to H.264/MPEG-4 AVC when using approximately 50% less bit rate on average.
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Three-dimensional subband coding with motion compensation
  • J. Ohm
  • Engineering
    IEEE Trans. Image Process.
  • 1 September 1994
TLDR
The scheme is interpreted more generally, viewed as a motion-compensated short-time spectral analysis of video sequences, which can adapt to the quickness of changes.
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Overview of the Multiview and 3D Extensions of High Efficiency Video Coding
TLDR
The more advanced 3D video extension, 3D-HEVC, targets a coded representation consisting of multiple views and associated depth maps, as required for generating additional intermediate views inAdvanced 3D displays.
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Advances in Scalable Video Coding
  • J. Ohm
  • Computer Science
    Proceedings of the IEEE
  • 27 June 2005
TLDR
This paper gives a short overview over scalable video coding techniques and analyzes in more detail the encoder/decoder drift problem, which is the major reason why scalable coding has been significantly less efficient than single-layer coding in most of these implementations.
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Standardized Extensions of High Efficiency Video Coding (HEVC)
TLDR
The design for these extensions represents the latest state of the art for video coding and its applications, including work on range extensions for color format and bit depth enhancement, embedded-bitstream scalability, and 3D video.
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Developments in International Video Coding Standardization After AVC, With an Overview of Versatile Video Coding (VVC)
TLDR
This article summarizes these developments in video coding standardization after AVC, and focuses on providing an overview of the first version of VVC, including comparisons against HEVC.
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Low-complexity global motion estimation from P-frame motion vectors for MPEG-7 applications
TLDR
An algorithm for low-complexity global motion estimation, that works with block-coded video (e.g. MPEG-2), and the integration of the estimator into a complete MPEG-7 system for search-and-retrieval of video based on motion characteristics.
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Overview of the Versatile Video Coding (VVC) Standard and its Applications
TLDR
An overview of the novel technical features for new applications and the core compression technologies for achieving significant bit rate reductions in the neighborhood of 50% over its predecessor for equal video quality and 75% over the currently most-used format, the Advanced Video Coding (AVC) standard are provided.
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