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    • 61. 发明申请
    • IMAGE QUALITY MEASUREMENT BASED ON LOCAL AMPLITUDE AND PHASE SPECTRA
    • 基于局部振幅和相位谱的图像质量测量
    • WO2013177779A1
    • 2013-12-05
    • PCT/CN2012/076338
    • 2012-05-31
    • THOMSON LICENSINGZHANG, FanCHEN, ZhiboJIANG, Wenfei
    • ZHANG, FanCHEN, ZhiboJIANG, Wenfei
    • H04N17/00G06T7/00
    • G06T7/0002G06K9/66G06T3/4084G06T2207/20048G06T2207/30168
    • A method and system for determining a quality metric score for image processing are described including accepting a reference image, performing a pyramid transformation on the accepted reference image to produce a predetermined number of scales, applying image division to each scale to produce reference image patches, accepting a distorted image, performing a pyramid transformation on the accepted distorted image to produce the predetermined number of scales, applying image division to each scale to produce distorted image patches, performing a local distortion calculation for corresponding reference and distorted image patches, summing local distortion calculation results for image patch pairs, multiplying results of the summation operation by a positive weight for each scale, summing the results of the multiplication operation and applying a sigmoid function to results of the second summation operation to produce the quality metric score.
    • 描述了用于确定用于图像处理的质量度量得分的方法和系统,包括接受参考图像,对所接受的参考图像执行金字塔变换以产生预定数量的刻度,对每个比例应用图像划分以产生参考图像块, 接受失真的图像,对接受的畸变图像执行金字塔变换以产生预定数量的刻度,对每个刻度进行图像划分以产生失真的图像块,对相应的参考和失真的图像块执行局部失真计算,求和局部失真 图像补丁对的计算结果,将求和运算的结果乘以每个比例的正权重,将乘法运算的结果相加,并将S形函数应用于第二加和运算的结果以产生质量度量得分。