CJ Group’s AI Division has developed Millstone CUE, an AI video solution streamlines editing by automating labor-intensive tasks — starting with AI Blur
We’re living in an era in which one in three Koreans is a content creator. According to a 2022 report by Adobe, out of South Korea’s population of about 52 million, roughly 17.5 million people create online content on platforms like YouTube, TikTok and blogs.*
*Source: Adobe “Future of Creativity” Study
As personal content creation becomes part of everyday life, the legal and ethical responsibilities around individuals’ information in videos and other media are growing. Many content creators who have spent entire nights painstakingly blurring the faces of passersby have likely wondered — could AI handle these repetitive, time-consuming tasks?
CJ Group’s AI R&D Division has developed AI Blur, an innovative feature that can reduce editing time by 91% or more with just a few simple clicks. This is the first offering from Millstone CUE, a next-generation video AI solution that rolled out this August.
Changing the Paradigm of Video Production in the Era of ‘Democratized Creation’
Until now, AI technology in video content has mainly advanced to improve production efficiency. Most of these technologies have focused on improving production decisions, such as predicting a project’s financial success and optimizing the production environment, speeding up workflows by automating repetitive tasks and enhancing content quality with high-quality CG or VFX implementation and high-resolution restoration.
However, the role of AI in video content is now expanding in a new direction as the world enters an era in which everyone has the potential to become a creator — the “democratization of creation.” Moving forward, content will be created in real time to match individual preferences, ordinary people will be able to effortlessly make virtual characters to create new IP and original content will be transformed into various forms for mass production.
CJ Group’s AI R&D Division has proactively responded to these changes by developing a game-changer: Millstone CUE. With its unique technology and world-class AI video processing capabilities, Millstone CUE will drastically increase production efficiency and ultimately establish itself as a core platform leading the global spread of K-content.
Reducing Editing Time by 91% With Object Tracking Technology
The starting point? Millstone CUE’s AI Blur feature.
At the core of the AI technology developed by CJ Group’s AI R&D Division is an advanced, proprietary object tracking technology. Traditional technologies often require a reference photo and fail to identify the same individual between separate shots, meaning video editors have to manually reapply blurs with every scene shift.
Millstone CUE features a proprietary object tracking technology that accurately detects and tracks the same individual not only within a single video but also across different shots — even as the person moves or the scene changes.
This innovative approach, not seen in existing solutions, marks the most advanced AI blurring technology currently available. Millstone CUE’s unique and technical advances have been recognized through multiple patent applications, both domestic and international. It reliably identifies and tracks the same person from various angles and across scene transitions — and can even analyze multiple individuals simultaneously.
AI Blur drastically reduces editing time. With just a few clicks, video editors can apply fast and consistent blurring. In internal testing, Millstone CUE reduced the time required to blur a 10-to-15-minute video by 91%. In other words, tasks that once took six hours can now be completed in under 30 minutes.
Testing and Refining Blur Technology with CJ ENM Content
In order to rigorously test and refine the system, the AI R&D Division first applied its blur technology to video content produced by CJ ENM.
In broadcast production, blur effects are often required to avoid unwanted brand exposure or potential copyright and trademark issues. Traditionally, production teams had to repeatedly watch through footage, identify what needed to be blurred and when, and then manually apply blurs frame by frame in a highly labor-intensive process.
During the process of editing YouTube content for K-pop group ZEROBASEONE and official YouTube videos for Mnet’s “World of Street Woman Fighter,” Millstone CUE’s AI Blur technology was used to successfully track the same individuals even after their makeup or hairstyles had changed.
As a result, the faces of non-featured individuals such as staff members were automatically blurred, helping to avoid facial exposure and minimize the risk of leaking personal information. The technology proved especially effective for K-pop idol content, in which multiple individuals often appear on screen simultaneously. Editing time was significantly reduced as well.
The AI R&D Division also made use of the AI Remover feature, which is currently in development. This tool automatically removes unnecessary objects like filming equipment from footage, helping create cleaner, more polished videos. AI Remover is now being prepared as a follow-up feature to the AI Blur service.
Millstone CUE Officially Launched in August 2025
CJ Group’s AI R&D Division officially launched Millstone CUE in August as an AI solution that supports everything from video search to editing and creation. The initial release featured the AI Blur service, with plans to add more features like AI-driven scene searches for long videos in future updates.
Designed with an intuitive user interface, Millstone CUE makes it easy for anyone to create high-quality videos quickly. With enhanced processing speeds, the platform aims to offer a seamless user experience. A range of service options, including free trials and paid plans, will also be available.
Millstone CUE is set to revolutionize video editing through its cutting-edge AI technology. For creators who have felt limited by existing AI blurring tools, this service promises a truly streamlined, innovative editing experience.
