Browsing by Author "Nah, Jae-Ho"

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    H-ETC2: Design of a CPU-GPU Hybrid ETC2 Encoder
    (The Eurographics Association and John Wiley & Sons Ltd., 2023) Lee, Hyeon-ki; Nah, Jae-Ho; Chaine, Raphaƫlle; Deng, Zhigang; Kim, Min H.
    This paper proposes a novel CPU-GPU hybrid encoding method based on the ETC2 format, commonly used on mobile platforms. Traditional texture compression techniques often face a trade-off between encoding speed and quality. For a better trade-off, our approach utilizes both the CPU and GPU. In a pipeline we designed, the CPU encoder identifies problematic pixel blocks during the encoding process, and the GPU encoder re-encodes them. Additionally, we carefully improve the base CPU and GPU encoders regarding encoding speed and quality. As a result, our encoder minimizes compression artifacts, increases encoding speed, or achieves both of these goals compared to previous high-quality offline ETC2 encoders.