Image quality evaluation method and device

• Main Authors: REN GUIPING, WU LIANFA, LIU JINHUA
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention provides an image quality evaluation method and device, and relates to the technical field of image processing. In the embodiment of the present application, the visual content weight based on mutual information is designed by using the statistical distribution property of image depiction of the Gaussian mixture model on the basis of the image quality evaluation method based on non-negative matrix factorization, thereby improving the robustness and the stability of the image quality evaluation method. Besides, an image quality evaluation function model is constructed by combiningthe non-negative matrix factorization technology and the visual content weight so as to improve the subjective and objective consistency of the image quality evaluation method. 本发明提供了种图像质量评价方法及装置，涉及图像处理技术领域。本申请实施例中，在基于非负矩阵分解的图像质量评价方法基础上，利用高斯混合模型刻画图像的统计分布特性，设计基于互信息的视觉内容权重，提高了图像质量评价方法的鲁棒性和稳定性。并综合非负矩阵分解技术和视觉内容权重，构建了图像质量评测函数模型，以改善图像质量评价方法的主客观致性。