In a significant advancement in the field of video technology, Tencent and Tsinghua University have jointly developed a cutting-edge high-resolution video extension technology known as Follow-Your-Canvas. This innovative technology aims to revolutionize the way we view and consume video content, offering unparalleled quality and flexibility.
Introduction to Follow-Your-Canvas
Follow-Your-Canvas is a distributed processing and layout alignment-based video extension technology, developed by Tencent’s Xunmu team in collaboration with Tsinghua University and other institutions. It enables the expansion of video content to any resolution while maintaining seamless integration and high-quality content generation. This technology is particularly beneficial for high-resolution video expansion, overcoming GPU memory limitations and efficiently handling large-scale video extension tasks across various resolutions and aspect ratios.
Key Features of Follow-Your-Canvas
High-Resolution Output
One of the primary features of Follow-Your-Canvas is its ability to expand video content to any resolution. For instance, it can upscale a 4K video to 8K or even higher resolutions, offering a superior viewing experience.
Unrestricted by GPU Memory
Follow-Your-Canvas is designed to handle large-scale video extension tasks without being limited by GPU memory. This makes it an ideal solution for processing vast amounts of video content.
Temporal and Spatial Consistency
Throughout the expansion process, Follow-Your-Canvas maintains the spatial and temporal consistency of the video, ensuring that the final output maintains the original video’s style and quality.
Generation of Rich New Content
The technology can generate new content in the specified expansion area, ensuring that it matches the original video’s style and enhances the overall visual experience.
Large-Scale Video Extension
Follow-Your-Canvas excels in large-scale video extension tasks, such as expanding a 512×512 resolution video to 1152×2048 (approximately 9 times the original resolution).
Technical Principles of Follow-Your-Canvas
Spatial Window Partitioning
The technology divides videos into multiple spatial windows, with each window independently generating content. These windows are then seamlessly merged to create the final video, allowing for the processing of videos of any size and resolution without being constrained by GPU memory.
Layout Encoder
The layout encoder extracts global layout information from the source video and injects it into the generation process of each window, ensuring that the newly generated content is consistent with the original video’s layout.
Relative Region Embedding (RRE)
RRE provides the relative position relationship between the source video and the target window, further guiding the generation process of each window to produce content that is consistent with the original video’s layout and improves spatial and temporal consistency.
Distributed Generation
Follow-Your-Canvas employs parallel processing on multiple GPUs to generate content for each window, ultimately merging the generated windows into the final video.
Application Scenarios of Follow-Your-Canvas
Video Size Adjustment
The technology can be used to adjust video sizes, such as converting vertical videos shot on mobile phones to horizontal format for better display on social media platforms or wide-screen TVs.
Ultra-Wide-Screen Video Generation
Follow-Your-Canvas can expand regular videos into ultra-wide-screen videos, providing a broader field of view suitable for cinema or ultra-wide-screen displays.
Panoramic Video Production
Based on video extension technology, Follow-Your-Canvas can convert regular videos into panoramic videos, enhancing the viewing experience for virtual reality (VR) and 360-degree video production.
High-Resolution Video Output
The technology can handle video output up to 16K resolution, making it suitable for high-definition video production, such as movies and high-quality advertisements.
Conclusion
Tencent’s Follow-Your-Canvas represents a significant leap forward in the field of video technology. By offering high-resolution, seamless video extension, this technology promises to revolutionize the way we consume video content, providing unparalleled quality and flexibility.
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