Title

No-Reference Video Quality Assessment Based on Artifact Measurement and Statistical Analysis

Document Type

Article

Publication Date

4-2015

Publication Source

IEEE Transactions on Circuits and Systems for Video Technology

Abstract

A discrete cosine transform (DCT)-based no-reference video quality prediction model is proposed that measures artifacts and analyzes the statistics of compressed natural videos. The model has two stages:

  1. distortion measurement
  2. nonlinear mapping

In the first stage, an unsigned ac band, three frequency bands, and two orientation bands are generated from the DCT coefficients of each decoded frame in a video sequence. Six efficient frame-level features are then extracted to quantify the distortion of natural scenes. In the second stage, each frame-level feature of all frames is transformed to a corresponding video-level feature via a temporal pooling, then a trained multilayer neural network takes all video-level features as inputs and outputs, a score as the predicted quality of the video sequence. The proposed method was tested on videos with various compression types, content, and resolution in four databases. We compared our model with a linear model, a support-vector-regression-based model, a state-of-the-art training-based model, and a four popular full-reference metrics. Detailed experimental results demonstrate that the results of the proposed method are highly correlated with the subjective assessments.

Inclusive pages

533-546

ISBN/ISSN

1051-8215

Comments

Permission documentation is on file.

Publisher

IEEE

Volume

25

Issue

4

Peer Reviewed

yes