8 papers
Single-impurity polarons in hard-core lattice bosons at low and intermediate fillings
Chao Zhang
We investigate a single mobile impurity in a two-dimensional hard-core Bose--Hubbard bath at low and intermediate fillings and determine how polaronic dressing evolves with bath fi…
Video Quality Evaluation Methodology and Result of AV2 Compression Performance
Zhijun Lei, Vibhoothi Vibhoothi, Dzung Hoang +2
The Alliance for Open Media (AOMedia) has developed the AV2 video coding standard to supersede AV1, aiming for substantial compression efficiency gains across diverse media applica…
Efficient Dense Matching for Enhanced Gaussian Splatting Using AV1 Motion Vectors
Julien Zouein, Vibhoothi Vibhoothi, François Pitié +1
3D Gaussian Splatting (3DGS) has emerged as a prominent framework for real-time, photorealistic scene reconstruction, offering significant speed-ups over Neural Radiance Fields (Ne…
AV1 Motion Vector Fidelity and Application for Efficient Optical Flow
Julien Zouein, Vibhoothi Vibhoothi, Anil Kokaram
This paper presents a comprehensive analysis of motion vectors extracted from AV1-encoded video streams and their application in accelerating optical flow estimation. We demonstrat…
An Empirical Study of Reducing AV1 Decoder Complexity and Energy Consumption via Encoder Parameter Tuning
Vibhoothi Vibhoothi, Julien Zouein, Shanker Shreejith +2
The widespread adoption of advanced video codecs such as AV1 is often hindered by their high decoding complexity, posing a challenge for battery-constrained devices. While encoders…
LiteVPNet: A Lightweight Network for Video Encoding Control in Quality-Critical Applications
Vibhoothi Vibhoothi, François Pitié, Anil Kokaram
In the last decade, video workflows in the cinema production ecosystem have presented new use cases for video streaming technology. These new workflows, e.g. in On-set Virtual Prod…