IBVC: Interpolation-driven B-frame Video Compression
Chenming Xu, Meiqin Liu, Chao Yao, Weisi Lin, Yao Zhao
TL;DR
The paper describes the elsarticle.cls LaTeX class designed to format manuscripts for Elsevier journals. It emphasizes compatibility and minimal package conflicts by building on the standard article class, while offering flexible preprint and final formatting, enhanced frontmatter, and theorem environments. It also guides users through installation via CTAN and Elsevier resources, detailing how to generate and deploy the class file within a TeX distribution. Overall, the class standardizes manuscript formatting, reduces package clashes, and simplifies author workflow for submitting to Elsevier journals.
Abstract
Learned B-frame video compression aims to adopt bi-directional motion estimation and motion compensation (MEMC) coding for middle frame reconstruction. However, previous learned approaches often directly extend neural P-frame codecs to B-frame relying on bi-directional optical-flow estimation or video frame interpolation. They suffer from inaccurate quantized motions and inefficient motion compensation. To address these issues, we propose a simple yet effective structure called Interpolation-driven B-frame Video Compression (IBVC). Our approach only involves two major operations: video frame interpolation and artifact reduction compression. IBVC introduces a bit-rate free MEMC based on interpolation, which avoids optical-flow quantization and additional compression distortions. Later, to reduce duplicate bit-rate consumption and focus on unaligned artifacts, a residual guided masking encoder is deployed to adaptively select the meaningful contexts with interpolated multi-scale dependencies. In addition, a conditional spatio-temporal decoder is proposed to eliminate location errors and artifacts instead of using MEMC coding in other methods. The experimental results on B-frame coding demonstrate that IBVC has significant improvements compared to the relevant state-of-the-art methods. Meanwhile, our approach can save bit rates compared with the random access (RA) configuration of H.266 (VTM). The code will be available at https://github.com/ruhig6/IBVC.