Total system solution leveraging high-resolution camera stills for optimising visual inspections
... through the synergy of Voyis’ Discovery Stereo system and the Voyis VSLAM Powered by EIVA NaviSuite software

Obtain high-quality 3D point clouds and navigation trajectory plots in real-time
… through advanced computer vision algorithms of NaviSuite VSLAM

Easier pilot navigation during complex operations
… with real-time data quality control displays

Minimise the risk of incomplete or inaccurate data collection 
… by monitoring real-time visual quality control displays in the intuitive, custom interface of NaviSuite

Complement navigation sensors
… thanks to situational awareness for obstacle avoidance provided by real-time 3D visualisation of surroundings

Enhance visual inspections
… by linking high-resolution stills with 3D point cloud and trajectory information – all point clouds and trajectory plots are merged together to give a full data set

Streamline your acquisition workflow if you are running NaviPac software
… by viewing these real-time quality control displays within the same intuitive user interface as your navigation and acquisition controls 

Produce high quality photogrammetry deliverables in a third-party application
… using the high-quality, image-enhanced 3D point clouds, which NaviSuite VSLAM and the Discovery camera generate in real time

Save on topside computational requirements
… through edge computing on your ROV with onboard processing of stills and video on the Discovery camera

Want to optimally ensure comprehensive and accurate data collection? During visual inspections, Voyis VSLAM Powered by EIVA NaviSuite lets you display 3D point clouds and trajectory plots generated in real-time – alongside your RGB-D camera stills. With this, QC engineers can thoroughly evaluate the survey's coverage and identify any potential areas where data may be missing or insufficient. For example, if there is noise in the trajectory data or blank spaces in the point cloud, you can take corrective actions promptly, such as conducting additional scans or adjusting survey parameters.

Monitor displays in an intuitive user interface

Tailor your data display to suit your needs, whether piloting an ROV or performing quality control. You can customise the NaviSuite VSLAM software interface with several synchronised views, such as an overview map, RGB-D camera stills, video and 3D point cloud – of which you can create multiple 2D/3D views.

Integrate with NaviPac Pro

For an unmatched level of integration, if you are using NaviPac Pro for navigation and positioning, you can display your Voyis VSLAM Powered by EIVA NaviSuite point cloud and trajectory data in the same interface.

You can register observations, take snapshots, as well as load background maps and 3D models. Unlock this integration and many more advanced features, including quantifiable change detection, measurement analysis and touchless metrology, with a NaviSuite bundle, such as for pipe and cable inspections.

Ensure high performance on a small form factor unit. Voyis’ Discovery Stereo camera’s edge computing reduces topside software computation and system latency, ensuring high-quality stills used by Voyis VSLAM Powered by EIVA NaviSuite. Camera outputs are partly processed in onboard software, yielding RGB-D images, rectified stereo pairs (aligned for ease of use in computer vision and metrology applications) and low latency video. 

NaviSuite VSLAM algorithms are pre-calibrated to the camera and run directly on images as they are taken. Data is compressed before being sent to the topside computer, which greatly reduces bandwidth requirements and enables real-time video for the pilot display.

Specifications of the Discovery Stereo system 

• 4K video stream and crisp stills images ready for machine vision and 3D reconstruction
• Real-time 3D point clouds
• Real-time image enhancement
• 250,000 lumens light output
• Camera, Dual 8MP, Colour sensor
• Lens, 5.0mm: 75°x75° field of view
• Operating Range, 0.5m to 5.0m
• Depth Rating, 4000m or 300m
• Onboard Processing: Image undistortion, colour & lighting correction, 3D point clouds
• Data Outputs: Raw & Processed Images, Video, IMU data, 3D Point Clouds 

Learn more on Voyis.com

Cameras transform 3D environments into 2D visualisations, while techniques like VSLAM (visual simultaneous localisation and mapping) and photogrammetry take those 2D visualisations and turn them into digital 3D representations, such as point clouds or 3D textured mesh models. The ability to generate 3D reconstructions, or digital twins, is a game changer when inspecting critical assets such as those in offshore energy or civil infrastructure.

Subsea 3D digitisation from camera: VSLAM vs photogrammetry technologies

A notable difference between the two techniques is that photogrammetry can only be performed after data collection is complete, while VSLAM performs 3D digitisation at the speed of acquisition. This means that by leveraging VSLAM, tools available commercially such as Voyis’ Discovery Stereo vision system give users peace of mind that optimal data coverage has been achieved, while offering increased situational awareness of the subsea environment – when the user is running Voyis VSLAM Powered by EIVA NaviSuite.

Voyis VSLAM Powered by EIVA NaviSuite estimates the camera's position by analysing consecutive input frames and finding matching key points to determine camera movement between poses. It leverages previous trajectory knowledge to enhance estimations. It detects loops in camera movement and optimises previous poses for improved accuracy.

Learn more about how this technique works and how it complements photogrammetry in visual inspection operations