What Is Depth Sensing Technology?

Depth sensing is the technology that allows a vision system to measure the distance between the camera and the objects in its environment. This process generates three‑dimensional information essential for applications such as robotics, industrial automation, autonomous navigation, and augmented reality. Depth cameras capture not only the visual appearance of a scene but also the geometry and volume of objects, enabling machines to “understand” their surroundings in a way that is closer to human perception.

In the professional field, one of the leading manufacturers of advanced depth‑sensing technologies is Orbbec, whose systems combine stereo vision, ToF sensors, and high‑performance industrial designs.

How Does Depth Sensing Work in Orbbec Cameras?

Orbbec cameras use different depth‑sensing technologies tailored to the requirements of each industrial or robotic application.

1. Stereoscopic Vision — Technology Used in the Orbbec Gemini Series

Stereo vision works through two cameras placed at a fixed distance from each other. Both capture the same scene from slightly different angles, and an algorithm calculates depth by analyzing the variations between them.
Within this category, Orbbec integrates this technology into its Gemini series, designed to deliver accurate real‑time depth.

This series include:
• Extremely stable data output
• Excellent accuracy at short and medium ranges
• Simultaneous RGB + Depth capture, useful for AI and segmentation algorithms
• Compact formats ideal for robotic arms and embedded systems

2. Time‑of‑Flight (ToF) — Present in the Orbbec Femto Series

Time‑of‑Flight technology measures the time it takes for the light emitted by the camera to return to the sensor, converting that delay into depth information.
Orbbec uses this technology in the Femto series, which includes multimode ToF depth cameras designed for high‑speed applications and dynamic environments.
What advantages does the Femto series offer?
• Real‑time, highly accurate depth measurement
• Perfect for mobile robotics, autonomous navigation, and volumetric analysis
• Models with USB‑C or PoE connections, ideal for industrial installations
• High‑performance cameras such as Femto Mega, featuring onboard processing

3. Reinforced Industrial Stereoscopic Cameras

For demanding environments (AGVs, factories, logistics), Orbbec offers reinforced models such as Gemini 335Lg, a stereo camera with GMSL2/FAKRA connectivity, ideal for applications requiring extreme durability and stable data transmission.
Advantages of the Gemini 335Lg include:
• IP67‑rated rugged construction for dust and water protection
• Higher bandwidth (up to 6 Gbps) and stable long‑distance transmission
• Reliable performance in environments with vibration or electromagnetic interference

Representative Examples of Orbbec Cameras Using Depth‑Sensing Technology 

Orbbec Gemini Series (Stereo Vision)

Models: Gemini 305, Gemini 335L, Gemini 335Lg
Applications:
• Collaborative robotics
• Inspection systems
• Industrial AGVs and mobile robots

Orbbec Femto Series (Time‑of‑Flight — ToF)

Models: Femto Bolt, Femto Mega, Femto Mega IP65
Applications:
• Autonomous navigation
• High‑speed 3D vision
• AI and machine learning projects

Why Choose Orbbec Cameras for Depth‑Sensing Projects?

1. Professional Accuracy for 3D Vision
Orbbec combines advanced technologies such as ToF, stereo vision, and active illumination to deliver reliable results in real industrial environments.

2. Models Built for Robotics and Automation
Orbbec offers compact cameras, IP65‑reinforced models, and multimode solutions to cover everything from robotic‑arm integration to warehouse navigation.

3. Smooth Integration with AI and Vision Systems
The Femto series supports AI and computer‑vision platforms, enabling seamless integration into modern processing pipelines.

Depth sensing is a fundamental technology enabling machines and robots to understand their environment in three dimensions. Orbbec leads this field through its Gemini and Femto series, which combine stereo vision, ToF, and robust industrial design to deliver reliable, precise, and scalable depth data.

If you’re looking to elevate the quality and performance of your 3D vision systems, Tecnodrive is your go‑to partner for acquiring Orbbec cameras with guarantee, support, and expert guidance.