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    • 2. 发明授权
    • Architecture and method for fine granularity scalable video coding
    • 精细粒度可扩展视频编码的架构和方法
    • US07203235B2
    • 2007-04-10
    • US11136780
    • 2005-05-25
    • Hsiang-Chun HuangChung-Neng WangTi-Hao ChiangHsueh-Ming Hang
    • Hsiang-Chun HuangChung-Neng WangTi-Hao ChiangHsueh-Ming Hang
    • H04B1/66
    • H04N19/34H04N19/33
    • A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an original image to predicted images at base layer and enhancement layer with motion compensation. Based on leaky and partial predictions, a high quality reference image is constructed at the enhancement layer to improve temporal prediction. In the construction of the high quality reference image, one parameter β controls the number of bitplanes of the enhancement layer difference coefficients used and another parameter α controls the amount of predictive leak. A spatial scalability module allows the processed pictures at the base layer and the enhancement layer to have identical or different spatial resolutions.
    • 强大的细粒度可伸缩性视频编码包括基本层编码器和增强层编码器,其中通过将原始图像与基本层和具有运动补偿的增强层的预测图像进行比较来生成运动补偿差分图像。 基于泄漏和部分预测,在增强层构建高质量参考图像以改善时间预测。 在构建高质量参考图像时,一个参数β控制所使用的增强层差分系数的位平面数,另一参数α控制预测泄漏量。 空间可扩展性模块允许基础层和增强层处理的图像具有相同或不同的空间分辨率。