TOWED VEHICLE DUAL-MODE IMAGING & LASER MEASUREMENT SYSTEM

As with Prowler I, Prowler II is developed for use with sled and towed vehicles in the acquisition of highly detailed seabed images and mosaics.

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Unlike its counterpart, however, Prowler II incorporates dual-mode laser and still imaging capabilities from a single camera and does not offer video functionality.

Power and Communications

  • Integrated junction bottle for Ethernet.
  • 24v to 300v power options.
  • Optional topside rack for storage and configuration.
  • Additional sensor input options.

Unique Technical Features Deliver Unparalleled Efficiencies

High-resolution still imaging system with full laser profiling and measurement capability in a single sensor.

Technical Features

INTEGRATED PRECISION IMAGING

  • Still imaging mode – UHD stills resolution of 4096 x 2304 pixels up to 7 fps. HD stills resolution of 2048 x 1152? pixels up to 30 fps.
  • Laser imaging mode –  Laser resolution of 60,000 points and 30 lines per second. 3D laser point cloud data, synchronised with stills and video.
  • Sequential imaging – 1 to 5 light pulses per millisecond, interleaved with laser and other sources, allow for high-speed ROTV operation.

EXTENSIVE OPERATIONAL RANGE

  • Operational heights of up to 2 metres from seabed.
  • 1.3:1 swath to height ratio, single-swath system, with swaths of up to 2.6 metres possible.

ADVANCED CALIBRATION

  • Fully calibrated camera for enhanced mosaic measurement and photogrammetry.

HIGH-PRECISION OUTPUTS

  • High-resolution still and laser imaging enables submillimetre precision.

Efficiencies

REDUCED OPERATION TIMES

  • High visibility and extended range enable non-stop, high-speed operations, delivering time and cost efficiencies.

REAL TIME QUALITY ASSURANCE

  • Real-time still, laser and video data feeds allow instantaneous quality assurance and post-acquisition calibration, ensuring results are not compromised by misalignment or changes in environmental conditions.

WORKFLOW OPTIMISATION

  • Time-stamped, co-registered, fully integrated range and scale metadata, output in EXIF format, improves post-process workflow.
  • Two-tiered data collection and integration with other sensors produce further workflow efficiencies.

FULL COMPATIBILTY

  • Compatibility with clients’ existing workflows and with Cathx Ocean eventing, positioning and Solid software, optimises efficiencies in data processing.

ENHANCED FUNCTIONALITY

  • Optional overlays for range and other sensor inputs, give greater flexibility.

Explore System

Click and drag the 3D model for a 360° rotation.
This system is made up of one subsystems and each one is colour coded.
These colours correspond with the subsystem descriptions below the 3D model.

Stills & Laser Subsystem

PULSAR II
Explore Hardware

FAST FLY VIDEO
Explore Hardware

FAST MODEL
Explore Hardware

Explore Hardware

Click on the tabs below to view hardware and features

PULSAR II

The Pulsar II Strobe light is an Ultra High output LED-based Strobe light. The unique design of the Strobe light means it can provide up to 150,000 lumen output power up to 10 millisecond pulse widths. The LED Panel is divided in to 4 separate panels to deliver a more dynamic lighting profile.

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LOW SCATTER, HIGH SPEED
  • Up to 30 light pulses per second with less than 2 microsecond exposure.
  • Dramatic reduction in back scatter from particles.
HIGH-RESOLUTION OUTPUTS
  • 30 fps, 1080p HD video with no pulsing visible.
CLEAR VISIBILITY
  • Increased range of visibility.
  • Motion blur eliminated.
  • ‘Clean’ video.
HIGHLY EFFICIENT
  • Compatible with high-speed operations.
  • Reduction in zoom or stoppage times.
  • Faster transit times.

FAST FLY VIDEO

Fast Fly Video is focused on high quality video for vehicle piloting and sharp stills for subsea inspection workflows. This camera range has a sensor area typically twenty times larger than conventional subsea HD cameras and a fast dual-ARM processor. The Fast Fly Video’s sensitivity, combined with low exposures and progressive scan imaging, produces the sharpest image detail available from a moving vehicle. Delivers superior subsea HD Video compatible with existing HD Infrastructure and supporting a wide range of video outputs. Capable of dual mode operation – capturing video and stills simultaneously.

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VIDEO CAMERA & STROBE LIGHTING
  • There are many limitations associated with traditional video cameras for AUV and ROV platforms. Motion and continuous lighting can create poor visibility due to scatter from particles and motion blur. Illumination range is generally compromised and high powered-lighting is necessary to achieve any adequate clarity.
  • Using short exposure times for each frame, R300 overcomes these restraints. When combined with Cathx Ocean A8 strobe lighting, it delivers even greater benefits.
LOW SCATTER, HIGH SPEED
  • Up to 30 light pulses per second with less than 2 microsecond exposure.
  • Dramatic reduction in back scatter from particles.
HIGH-RESOLUTION OUTPUTS
  • 30 fps, 1080p HD video with no pulsing visible.
CLEAR VISIBILITY
  • Increased range of visibility.
  • Motion blur eliminated.
  • ‘Clean’ video.
HIGHLY EFFICIENT
  • Compatible with high-speed operations.
  • Reduction in zoom or stoppage times.
  • Faster transit times.

FAST MODEL

Fast Model includes the Fast Fly Stills camera and Green Line Laser. The Green line laser is a 520nm long range laser which produces a straight line with uniform intensity over a long range due to its optimal wavelength for water penetration. This system can capture UHD Still images and laser profiles in a rapid sequence providing laser xyz data with co-registered still images

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EASY SETUP AND CONTROL
  • User-configurable GUI.
  • Real-time stills monitoring GUI for image and thumbnail review (ROV systems).
HIGH-RESOLUTION, REAL-TIME DISPLAY
  • 50 lines per second at 2000 pixels per line.
  • Cathx Ocean interface offers real-time display.
  • Noise filtering
COMPREHENSIVE METADATA ACQUISITION
  • Individual Nav tag for every image.
  • EXIF data tags for Nav and other sensors.
  • Automated range and scaling in real time.
  • Sensor-registered, environmental optimisation modes for turbidity, white balance, colour, local optimisation, regional sea and position-based settings. ??
  • PPS or NTP synchronisation.
INTELLIGENT IMAGING
  • Full autonomous mode – fast API protocol for camera query and control.
  • Real-time quality factors (laser), with closed loop controls.
  • Range-based focus from laser or external range sensors.
  • Sequential imaging, multi-source (and spectrum) imaging.
  • Dual video and stills mode (ROV systems).
  • Dual-camera, anti-shadowing function.
COMPATIBLE TECHNOLOGY
  • Real-time laser profiles displayed in EIVA, QUINSy or similar.
  • API for third party integration.
CONVENIENT STORAGE
  • Direct write to NAS over Ethernet.
  • On-board compression.