Overview of the Low Complexity Enhancement Video Coding (LCEVC) Standard

Abstract

The Low Complexity Enhancement Video Coding (LCEVC) specification is a recent standard approved by the ISO/IEC JTC 1/SC 29/WG04 (MPEG) Video Coding. The main goal of LCEVC is to provide a standalone toolset for the enhancement of any other existing codec. It works on top of other coding schemes, resulting in a multi-layer video coding technology, but unlike existing scalable video codecs, adds enhancement layers completely independent from the base video. The LCEVC technology takes as input the decoded video at lower resolution and adds up to two enhancement sub-layers of residuals encoded with specialized low-complexity coding tools, such as simple temporal prediction, frequency transform, quantization, and entropy encoding. This paper provides an overview of the main features of the LCEVC standard: high compression efficiency, low complexity, minimized requirements of memory and processing power.

A Survey on Video Streaming for Next-Generation Vehicular Networks

“…Due to its effective reduction in video encoding complexity, various studies have demonstrated significant bitrate and encoding time gains compared to original encoders [132]. Ferrara et al [131] validated the benefits of LCEVC through experimentation, demonstrating a significant decrease in the overall complexity of the end-to-end process.…”

Joint Content Caching, Recommendation, and Transmission for Layered Scalable Videos Over Dynamic Cellular Networks: A Dueling Deep Q-Learning Approach

“…Due to the potential to enhance video delivery efficiency and mobile users' QoE, layered SVC streaming has been widely investigated. Literature [13] gives a detailed survey on the LCEVC technology. In [14], the authors propose an adaptive policy iteration algorithm to improve the QoS in wireless scalable video multicast.…”

Verification Test of the Low Complexity Enhancement Video Coding (LCEVC) Standard

“…In [16] the authors provide a description of the LCEVC specification and an analysis of the individual coding tools comprised in LCEVC, highlighting the low complexity and the innovative aspects of such tools. If [16] is an overview of LCEVC, the current paper provides a synthesis of the methodologies used and the results obtained in the LCEVC verification tests.…”

“…In [16] the authors provide a description of the LCEVC specification and an analysis of the individual coding tools comprised in LCEVC, highlighting the low complexity and the innovative aspects of such tools. If [16] is an overview of LCEVC, the current paper provides a synthesis of the methodologies used and the results obtained in the LCEVC verification tests. As noted above, the verification test is the final phase of the development of an MPEG Video coding standard, since it is crucial to confirm the performances of the new video coding technology with respect to the objectives set forth at the beginning of the standard development activity.…”