Analysis and Evaluation of Required Precision for Color Images in Digital Cinema Application(Image)

スポンサーリンク

概要

• 論文の詳細を見る

• Digital cinema will continue, for some time, to use image signals converted from the density values of film stock through some form of digitization. This paper investigates the required numbers of quantization bits for both intensity and density. Equations for the color differences created by quantization distortion are derived on the premise that the uniform color space L^*a^*b^* can be used to evaluate color differences in digitized pictorial color images. The location of the quantized sample that yields the maximum color difference in the color gamut is theoretically analyzed with the proviso that the color difference must be below the perceivable limit of human visual systems. The result shows that the maximum color difference is located on a ridge line or a surface of the color gamut. This can reduce the computational burden for determining the required precision for color quantization. Design examples of quantization resolution are also shown by applying the proposed evaluation method to three actual color spaces: NTSC, HDTV, and ROMM.

• 社団法人電子情報通信学会の論文
• 2004-12-01

著者

• Suzuki Junji

  Faculty Of Information Science And Technology Aichi Prefectural University

• FURUKAWA Isao

  NTT Network Innovation Laboratories, NTT Corporation

• ONO Sadayasu

  Graduate School of Media and Governance, Keio University

• Suzuki Junji

  Institute For Solid State Physics University Of Tokyo

• Ono Sadayasu

  Graduate School Of Media And Governance Keio University

• Suzuki J

  Faculty Of Information Science And Technology Aichi Prefectural University

• Furukawa I

  Ntt Network Innovation Laboratories Ntt Corporation

• SUZUKI Junji

  Faculty of Information Science and Technology, Aichi Prefectural University

関連論文

• Required Number of Quantization Bits for CIE XYZ Signals Applied to Various Transforms in Digital Cinema Systems(Image)
• Analysis and Evaluation of Required Precision for Color Images in Digital Cinema Application(Image)
• Required Quantizing Resolution for Perceptually Linearized Medical X-Ray Images on Display Monitor
• A Unified Coding Algorithm of Lossless and Near-Lossless Color Image Compression(Special Section on Intelligent Signal and Image Processing)
• Pel Adaptive Predictive Coding Based on Image Segmentation for Lossless Compression
• 2S+1 State Vertex Model at a First Order Transition Point : Condensed Matter and Statistical Physics
• A New Approach to Quantum Spin Chains at Finite Temperature
• Finite Size Correction and Conformal Anomaly for O (n) Spin System
• Theoretical Investigation on Required Number of Bits for Monochrome Density Images on High-Luminance Electronic Display(Image)

スポンサーリンク