Multi-Path Interference in ToF Cameras: Causes, Effects & Mitigation
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Multi-Path Interference in ToF Cameras: Causes, Effects & Mitigation
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Multi-path interference is a major challenge in Time-of-Flight (ToF) 3D imaging, especially in environments with reflective surfaces, corners, and complex geometry. When emitted light returns through multiple paths, depth measurements become distorted—leading to warped surfaces and unreliable perception.
In this episode of Vision Vitals by e-con Systems, we explore:
• What multi-path interference is in ToF cameras
• How indirect light paths distort depth calculations
• Why reflective materials, corners, and large incident angles make it worse
• How multi-path interference appears in depth maps and 3D point clouds
• Algorithmic mitigation techniques and spatial filtering
• Multi-frequency depth strategies
• Optical design and camera placement best practices
• How real-world systems reduce interference in production deployments
We also discuss how modern ToF camera architectures—including upcoming AF0130-based iToF solutions—address these challenges through on-camera depth computation and interference mitigation.
If you’re building robotics, industrial automation, or 3D vision systems, this episode will help you design for more accurate and reliable depth sensing.
🔗 Explore e-con Systems Depth Cameras
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