VersaVIS

VersaVIS provides precise time synchronization for multi-camera and IMU systems to enable robust visual-inertial pose estimation and sensor fusion for mobile robotics and SLAM applications.

Key Features:

• Time Synchronization: Achieves precise time synchronization between multiple cameras and an IMU to support accurate sensor fusion.
• Exposure Compensation: Compensates for varying exposure times to maintain consistent data capture across different lighting conditions.
• Host Clock Translation: Performs host clock translation to reconcile different system clocks and reduce synchronization errors from multiple clock sources.
• Independent and Stereo Camera Triggering: Supports independent and stereo camera triggering configurations for flexible acquisition schemes.
• Hardware, Firmware, and Software Integration: Integrates hardware, firmware, and software components to facilitate robust and accurate pose estimation.
• Robust Delay Handling: Addresses internal sensor filtering, unpredictable operating system scheduling delays, and data transfer lags to improve temporal alignment.
• Device Support: Supports a wide range of cameras and IMUs for adaptable sensor configurations.
• Sub-millisecond Synchronization Accuracy: Demonstrates synchronization timing precision of less than 1 millisecond across multiple experiments.

Scientific Applications:

• Visual-Inertial SLAM: Integrates visual data with inertial measurements to enhance the robustness and accuracy of SLAM systems.
• Multi-Camera Systems: Enables synchronized acquisition for multi-camera mapping and reconstruction tasks.
• Multi-Modal Mapping: Supports integration of various sensor modalities for combined mapping applications.
• Reconstruction and Object-Based Mapping: Aids in detailed environmental reconstruction and object-based mapping.

Methodology:

Handles sensor synchronization by addressing internal sensor filtering, unpredictable operating system scheduling delays, and data transfer lags.