Blar i NTNU Open på forfatter "Cherepkova, Olga"

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    • Analysis of individual quality scores of different image distortions 

      Cherepkova, Olga; Amirshahi, Seyed Ali; Pedersen, Marius (Peer reviewed; Journal article, 2022)
      In this paper, we study individual quality scores given by different observers for various image distortions (saturation, contrast, and color quantization) at different levels. We created a database that contains a total ...

    • Analyzing the Variability of Subjective Image Quality Ratings for Different Distortions 

      Cherepkova, Olga; Amirshahi, Seyed Ali; Pedersen, Marius (Chapter, 2022)
      When it comes to evaluating the quality of images, individual observers show different opinions depending on the type of distortion affecting the quality of the image. While in the opinion of one observer a distortion could ...

    • Content-based image quality assessment 

      Pedersen, Marius; Cherepkova, Olga (Peer reviewed; Journal article, 2020)
      In this work we investigate the influence of image content on image quality assessment. We describe image content through a set of features, such as busyness, colorfulness, lightness, sharpness and entropy, investigating ...

    • Image Quality Metrics for the Evaluation and Optimization of Capsule Video Endoscopy Enhancement Techniques 

      Pedersen, Marius; Cherepkova, Olga; Mohammed, Ahmed Kedir (Journal article; Peer reviewed, 2017)
      Capsule endoscopy, using a wireless camera to capture the digestive track, is becoming a popular alternative to traditional colonoscopy. The images obtained from a capsule have lower quality compared to traditional ...