Temporal error concealment for fisheye video sequences based on equisolid re-projection

TL;DR

This paper proposes a novel temporal error concealment method tailored for equisolid fisheye videos, utilizing re-projection techniques to improve video quality by leveraging the unique lens characteristics.

Contribution

It introduces a re-projection based error concealment approach specifically designed for equisolid fisheye video sequences, enhancing existing decoder motion vector methods.

Findings

Average gain of 0.71 dB over standard methods

Maximum gain of 2.04 dB on certain frames

Effective for fisheye video error concealment

Abstract

Wide-angle video sequences obtained by fisheye cameras exhibit characteristics that may not very well comply with standard image and video processing techniques such as error concealment. This paper introduces a temporal error concealment technique designed for the inherent characteristics of equisolid fisheye video sequences by applying a re-projection into the equisolid domain after conducting part of the error concealment in the perspective domain. Combining this technique with conventional decoder motion vector estimation achieves average gains of 0.71 dB compared against pure decoder motion vector estimation for the test sequences used. Maximum gains amount to up to 2.04 dB for selected frames.