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    • 10. 发明授权
    • Adaptive spatial variant interpolation for image upscaling
    • 用于图像放大的自适应空间变异插值
    • US09013511B2
    • 2015-04-21
    • US11502233
    • 2006-08-09
    • Yi LiangKing-Chung LaiKhaled Helmi El-Maleh
    • Yi LiangKing-Chung LaiKhaled Helmi El-Maleh
    • G09G5/00G06T3/40
    • G06T3/4007
    • This disclosure describes adaptive spatial variant interpolation (SVI) techniques for image upscaling. In various embodiments, the interpolation techniques described in this disclosure may support low complexity upscaling of image while promoting high image quality, including enhanced sharpness, higher contrast and more accurate interpolation. The interpolation techniques may be applied using generalized finite impulse response (FIR) filters. In some embodiments, the interpolation techniques may be content-adaptive to provide more accurate interpolation while suppressing significant artifacts associated with sharp edges. In addition, the interpolation techniques may be readily applicable to upscaling of color imagery and video, e.g., in both YCbCr (luminance, blue chrominance, red chrominance) and RGB (red, green, blue) formats.
    • 本公开描述了用于图像升高的自适应空间变异插值(SVI)技术。 在各种实施例中,本公开中描述的内插技术可以支持图像的低复杂度升高,同时促进高图像质量,包括增强的清晰度,更高的对比度和更精确的插值。 可以使用广义有限脉冲响应(FIR)滤波器来应用插值技术。 在一些实施例中,插值技术可以是内容自适应的,以提供更精确的内插,同时抑制与锐利边缘相关联的显着伪像。 此外,插值技术可以容易地应用于例如YCbCr(亮度,蓝色色度,红色色度)和RGB(红色,绿色,蓝色)格式的彩色图像和视频的放大。