Approaches to Video Quality Verification

Abstract

This report contains an overview of the tasks performed at Arris India Private Limited, Bengaluru within one year of internship.

Set-Top-Box (STB) is a leading equipment found in every home nowadays. To provide a continuous top quality stream to the user every day without any disturbance is a challenging task. Video Quality Assessment (VQA) of the video delivered to the user is a must. Without VQA one cannot know the perceptual quality of the video received at the end. With the advent of image and video in our daily lives, VQA has become a trending area of research. There are many techniques available to maintain and analyze the quality of a video. Out of them, Netflixs VMAF, RTM, timestamps and QR-Code based approach and some no-reference techniques are described in this report.

VQA is required because distortions occur in the video due to compression, scaling, encoding, packet loss, frame loss, etc. Various artifacts can be introduced in the video, which are to be identified and removed if possible. Brief description about the artifacts which may be introduced in the video is also provided.

Apart from VQA techniques, a study on some of the trending codecs was also carried out to have an understanding how actually compression works and also discover variety of codecs which could suit ever expanding video broadcasting industry within STB environment.