×

Image quality assessment using adaptive non-overlapping mean estimation

  • US 10,235,608 B2
  • Filed: 12/02/2016
  • Issued: 03/19/2019
  • Est. Priority Date: 12/22/2015
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus to perform image quality assessment, the apparatus comprising:

  • a training module to train a neural network, based on a set of training images, to classify quality of a first image;

    an image determiner to replace respective blocks of pixels of the first image with mean values of the respective blocks of pixels to determine a second image having a smaller size than the first image;

    a feature extractor to determine a vector of features including a blur feature value for the second image and to apply the vector of features to the neural network after the neural network has been trained, the feature extractor to determine the blur feature value based on an amount the second image differs from a version of the second image filtered with a blurring filter in horizontal and vertical directions of the second image; and

    an image classifier to classify a quality of the first image based on an output of the neural network, the training module, the image determiner, the feature extractor, and the image classifier implemented by hardware circuitry or at least one processor.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×