Comparison of Coding Performance between Hybrid Log-Gamma system and Perceptual Quantization system : Objective quality evaluation between different HDR formats

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  • Hybrid Log-Gamma方式とPerceptual Quantizer方式の符号化性能比較 : 異なるHDR信号フォーマット間の客観品質評価(デジタル放送技術および一般)
  • Hybrid Log-Gamma方式とPerceptual Quantizer方式の符号化性能比較 : 異なるHDR信号フォーマット間の客観品質評価
  • Hybrid Log-Gamma ホウシキ ト Perceptual Quantizer ホウシキ ノ フゴウカ セイノウ ヒカク : コトナル HDR シンゴウ フォーマット カン ノ キャッカン ヒンシツ ヒョウカ

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This paper addresses comparison of coding performance of Hybrid Log-Gamma (HLG) system and Perceptual Quantizer (PQ) system, which are both adopted for ultra-high definition television broadcasting services. For comparing coding performance between different HDR video formats, we conducted objective quality evaluation using delta-E measurement in CIE 1976 L*a*b* color space. The experimental results show that coding artifacts of HLG system in terms of delta E are less than those of PQ system for almost all the test sequences used. Additionally, color artifacts in PQ system were observed, which were caused by signal conversion and strong non-linearity of transfer characteristics.

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  • ITE Technical Report

    ITE Technical Report 40.14 (0), 9-12, 2016

    The Institute of Image Information and Television Engineers

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