Google’s Beam, a commercialized version of Project Starline, offers an immersive 3D video calling experience. The technology utilizes a custom AI neural network to stitch together 2D videos into 3D images.
Key Observations from the Demo
During a demonstration at Google I/O 2025, several issues were noted:
- Image Quality: Users experienced slight jittering and horizontal scanlines reminiscent of old TVs. An unnamed source indicated that "the technology is still in its early stages."
- Movement Limitations: Camera tracking and viewing angle restrictions limit user movement to a direct center view. Shifting gaze can lead to distortion and darkness, constraining how users interact within the virtual space.
- Display Quality: The light field display appeared grainy, even at high resolutions. Attempting to look around another person’s body resulted in empty space due to the lack of rear-angle capture by the cameras. The technology struggles with capturing images from multiple angles simultaneously.
- Lighting Conditions: Beam’s performance may degrade significantly in dim lighting, posing a challenge for users in low-light environments.
- Technical Issues: Prototypes demonstrated freezing issues, with one participant’s image freezing during the demo. These technical hiccups highlight challenges that Google must address before Beam can be widely adopted.
Concerns and Considerations
In addition to technical challenges, there are growing concerns regarding:
- Data Privacy: The potential for misuse of the technology raises questions about data privacy.
- Surveillance Risks: There are apprehensions about governments or other entities potentially using the technology for surveillance purposes.
As Google continues to refine Beam, addressing these issues will be crucial for its successful integration into everyday communication.

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