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International Journal of Zoology and Applied Biosciences Review Article
A comprehensive review of error resilient strategies for region-of-interest (ROI) based video coding
Sridevi T, Renuka Devi R, Swathi T, Nafisa Farheen and Chandra Lekha SB
Year : 2025 | Pages: 654-658
Received on: 06/10/2025
Revised on: 27/10/2025
Accepted on: 24/11/2025
Published on: 01/12/2025
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Sridevi T, Renuka Devi R, Swathi T, Nafisa Farheen and Chandra Lekha SB( 2025).
A comprehensive review of error resilient strategies for region-of-interest (ROI) based video coding
. International Journal of Zoology and Applied Biosciences, 10( 6), 654-658.
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Abstract
Region-of-interest (ROI) video coding has emerged as an effective approach for enhancing the perceptual quality of critically important areas within video frames, especially in applications such as video conferencing and telecommunication. Because network environments particularly the Internet and wireless channels often suffer from packet losses and transmission errors, maintaining the fidelity of ROI regions is essential for improving the user experience. This review examines major error-resilient ROI coding techniques designed to protect important visual content under adverse transmission conditions. Approaches such as flexible macroblock ordering (FMO), unequal error protection (UEP), hybrid UEP combined with forward error correction (FEC), and nonlinear transformation strategies are analyzed. These schemes address challenges related to bitstream corruption, synchronization loss, and motion vector degradation, offering enhanced robustness and improved subjective and objective video quality. The review synthesizes advancements in ROI coding methodologies and highlights their significance in ensuring reliable video delivery in error-prone communication environments.
Keywords
ROI video coding, Error resilience, Flexible macroblock ordering, Unequal error protection.
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© The Author(s) 2025. This article is published by International Journal of Zoology and Applied Biosciences under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
