7 papers
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…
Leveraging AV1 motion vectors for Fast and Dense Feature Matching
Julien Zouein, Hossein Javidnia, François Pitié +1
We repurpose AV1 motion vectors to produce dense sub-pixel correspondences and short tracks filtered by cosine consistency. On short videos, this compressed-domain front end runs c…
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…
Demystifying the use of Compression in Virtual Production
Anil Kokaram, Vibhoothi Vibhoothi, Julien Zouein +4
Virtual Production (VP) technologies have continued to improve the flexibility of on-set filming and enhance the live concert experience. The core technology of VP relies on high-r…