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2026/09/08
2026/09/08 ~
A Deeper Look: High-Resolution 3D Depth Sensing
A Deeper Look: High-Resolution 3D Depth Sensing
Seeing More Across Various Scene
As technology advances, next-generation edge applications are creating growing demand for precise, high-density 3D depth mapping. From AR/VR headsets and autonomous drones to humanoid robotics and smart building systems, 3D sensing has become an essential capability for understanding and interacting with the physical world. Yet, delivering accurate spatial perception within compact, power-constrained devices presents significant engineering challenges.
To detect small objects and fine details reliably, systems need high-resolution depth maps across a wide field of view. Traditionally, achieving this combination required multiple discrete sensors, increasing bill-of-materials (BOM) costs while adding PCB layout complexity and introducing demanding alignment and calibration requirements. At the same time, processing high-density spatial data can create interface and computational bottlenecks, placing additional workloads on host microcontrollers. The resulting power consumption and thermal load can be particularly challenging for battery-powered and small-form-factor devices.
Expanding Coverage with a Single Sensor
The ST VL53L9 addresses these sensing and processing challenges by integrating high-density 3D sensing into a single, compact module. As ST’s highest-resolution 3D Time-of-Flight (ToF) LiDAR sensor, the VL53L9 integrates multiple Single Photon Avalanche Diodes (SPADs) with a metasurface optical element to deliver up to 2.3K (54 × 42) sensing zones and a wide field of view of approximately 55° × 42°. Its dual-scan flood illumination moves beyond conventional dot-based sensing by providing broad scene coverage, enabling more reliable detection of smaller objects, thin barriers, and sharp edges while reducing the need for complex multi-sensor alignment and calibration.
Turning Spatial Data into Intelligence
The VL53L9 also tackles the challenge of handling high-density spatial data at the edge. Its upgraded internal ASIC executes advanced depth algorithms locally, reducing reliance on host MCUs and external RAM. The sensor can stream rich 2D and depth multizone spatial data at up to 60 fps, with basic streaming modes reaching up to 100 Hz. In low-power mode, typical system power consumption is approximately 150 mW. With native support for high-bandwidth MIPI and I³C interfaces, the VL53L9 enables an efficient capture-to-processing-to-data pipeline, helping system designers integrate high-performance 3D depth mapping into compact and power-sensitive devices.
Building on the capabilities of ST’s VL53L9, EDOM Technology extends the solution from 3D sensing to the broader edge-AI system. By combining 3D sensing, edge AI processing, device security, and active thermal management with a comprehensive ecosystem of technology partners, EDOM provides scalable, turnkey solutions and technical expertise to simplify system integration and accelerate product development, from raw spatial perception to intelligent decision-making.
The complete module for integrating high-resolution 3D depth mapping into compact, power-sensitive devices.
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VL53L9CX－3D All-in-One LiDAR dToF Sensor
STMicroelectronics
ST VL53L9CX is a compact, all-in-one 3D dToF LiDAR module delivering up to 2.3K zones, 8.8 m ranging, and 100 Hz data streaming. Combining SPADs, dual VCSELs, MOE, and an embedded SoC, it enables precise, high-speed depth sensing for AR/VR, drones, and humanoid robots.
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STM32N6 Series - High Performance MCU
STMicroelectronicsThe STM32N6 series features an Arm Cortex-M55 core running at up to 800 MHz, with support for Arm Helium vector processing technology. The STM32N6x7 models further integrate ST’s Neural-ART Accelerator NPU, delivering up to 600 GOPS of AI processing performance. It self-developed neural network accelerator is designed specifically for energy-efficient edge AI applications.
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STSAFE-A120 - Secure Authentication MCU
STMicroelectronics
The STSAFE-A120 is a secure element, providing authentication and secure data management services to a local or remote host. It also provides cryptographic services like hashing, encryption, and decryption. It consists of a full turnkey solution with a secure operating system running on the latest generation of secure microcontrollers.
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XMC-2400 - Active Convection Chip
xMEMS Labs
The first-ever all-silicon, solid-state active micro cooling chip revolutionizes thermal management for ultra-mobile systems and next-generation AI solutions. The air pump can push the limits with bi-directional and adjustable airflow up to 28 cubic centimeters of air per second with 1,300Pa of back pressure, enabling mobile devices to sustain maximum performance at lower operating temperatures and without processor throttling.
[Learn more]
