Technology [HW] Eye Tracking Camera — Depth Camera
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작성자 MOPIC
작성일2026.06.09
작성일2026.06.09
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PART 2 · Hardware
Eye Tracking Camera — Depth Camera
Q
Why does MOPIC recommend a Depth Camera?
A
When designing a 3D product, MOPIC proposes a suitable Eye Tracking Camera based on the customer's environment and the product's purpose. In general, a Depth Camera is recommended where more precise 3D is required.
Glasses-free 3D must precisely separate the left-eye and right-eye images based on the viewer's eye position and viewing distance, so how accurately the viewer's position can be measured is critical.
A Depth Camera measures the viewer's distance and position relatively accurately, enabling more precise 3D rendering. Distance-measurement accuracy directly affects how natural the depth feels, crosstalk, and the speed and stability of eye tracking. It also enables more stable tracking when implementing Eye-Tracking-based motion parallax.
📊 Depth Camera vs. Mono Camera
A side-by-side comparison of the two camera types. For more on the Monocular Camera, see item 2.2.
| Criteria | Depth Camera | Mono Camera |
|---|---|---|
| Distance measurement | Direct (Stereo / IR / ToF) | Image-based estimation |
| Distance accuracy | High | Errors possible depending on conditions |
| Tracking stability | High | Affected by lighting and motion |
| Motion Parallax support | Recommended | Limited |
| HW setup | Requires a dedicated Depth Camera | Can use a standard webcam / built-in camera |
| Cost | Relatively high | Low |
| Best suited for | Precise 3D / industrial, medical, automotive | Low-cost / lightweight systems |
Types of Depth Camera
| Type | Examples / Notes |
|---|---|
| Stereo Camera | Intel RealSense, MOPIC Camera, etc. |
| IR Camera | Infrared-based depth sensing |
| ToF Camera | Time-of-Flight method |
Use Cases
· Eye tracking for glasses-free 3D displays
· Motion-parallax-based 3D systems
· Automotive 3D displays
· Precision viewpoint-tracking systems for medical and industrial use