Diagram of the SQUID-5 towed surface vehicle and the waterproof camera housings with labeled components. The camera mounting mechanism aligns the camera axially with the dome and allows the camera to be adjusted fore and aft to accommodate various lens types and enable alignment with the glass port radius of curvature for minimal distortion.
The SQUID-5 is a Structure-from-Motion Quantitative Underwater Imaging Device with 5 cameras.
SQUID-5 is a towed surface vehicle with an onboard Global Navigation Satellite System (GNSS) and five downward-looking cameras with overlapping views of the seafloor.
The cameras are tightly synchronized with both the GNSS and each other to collect photo sets simultaneously with their precise location at the instant of collection. Structure-from-Motion (SfM) software is then used to process the digital imagery and generate accurate bathymetric (sea bed elevation) data and co-registered orthomosaics of complex seafloor types such as coral reef and sand ripple fields located in relatively shallow water (2 – 9 meters) with good visibility. Because of high data density mapping is limited to small areas of several hundred square meters. The resulting data products have resolutions on the order of millimeters and can be used to measure mm-to-cm scale changes in the morphology and location of seafloor features over time.
Specifications
- Manufacturer – Designed and built by Gerry Hatcher at the USGS PCMSC Marine Facility
- Model - SQUID-5 V1.1
- Weight - 52kg in air
- Dimensions – W 1.5 m, L 1.25 m, H 0.9 m
- Power Requirements 120 VAC – 240 VAC, total system consumption 300 watts max.
Operational Characteristics
- Minimum Operational Depth - limited by near focus to water depths deeper than 1 meter
- Maximum Operational Depth - limited by water clarity
- Limitations - maximum tow speed of 3 knots, sea state 1.5 meters or less, water depth & clarity limit acceptable areas of operation
- Power Outputs / Freq. Ranges – N/A, It is a passive camera system
- Ship’s Requirements - light lifting and towing capability, low speed maneuverability
Additional Equipment Required
A support vessel, a GNSS base station or GNSS reference network for post processing position data.
Complementary Systems
SwathPlus 468kHz Seafloor Mapping System
Learn more about USGS equipment and the teams that design, build, and operate instruments for data collection.
PCMSC MarFac Field Equipment and Capabilities
PCMSC Marine Facility (MarFac)
Data from SQUID-5
Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021
Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography
Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography
Point clouds, bathymetric maps, and orthoimagery generated from overlapping lakebed images acquired with the SQUID-5 system near Dollar Point, Lake Tahoe, CA, March 2021
Overlapping lakebed images and associated GNSS locations acquired near Dollar Point, Lake Tahoe, CA, March 2021
SQUID-5 structure-from-motion point clouds, bathymetric maps, orthomosaics, and underwater photos of coral reefs in Florida, 2019
Colored shaded-relief bathymetric map and orthomosaic from structure-from-motion quantitative underwater imaging device with five cameras of the Lake Tahoe floor, California
Below are multimedia items associated with this project.
Diagram of the SQUID-5 towed surface vehicle and the waterproof camera housings with labeled components. The camera mounting mechanism aligns the camera axially with the dome and allows the camera to be adjusted fore and aft to accommodate various lens types and enable alignment with the glass port radius of curvature for minimal distortion.
The SQUID-5 is an acronym for a Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with 5 cameras.
The SQUID-5 is an acronym for a Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with 5 cameras.
Read our publications about SQUID-5.
Accurate maps of reef-scale bathymetry with synchronized underwater cameras and GNSS
Accurate bathymetric maps from underwater digital imagery without ground control
The SQUID-5 is a Structure-from-Motion Quantitative Underwater Imaging Device with 5 cameras.
SQUID-5 is a towed surface vehicle with an onboard Global Navigation Satellite System (GNSS) and five downward-looking cameras with overlapping views of the seafloor.
The cameras are tightly synchronized with both the GNSS and each other to collect photo sets simultaneously with their precise location at the instant of collection. Structure-from-Motion (SfM) software is then used to process the digital imagery and generate accurate bathymetric (sea bed elevation) data and co-registered orthomosaics of complex seafloor types such as coral reef and sand ripple fields located in relatively shallow water (2 – 9 meters) with good visibility. Because of high data density mapping is limited to small areas of several hundred square meters. The resulting data products have resolutions on the order of millimeters and can be used to measure mm-to-cm scale changes in the morphology and location of seafloor features over time.
Specifications
- Manufacturer – Designed and built by Gerry Hatcher at the USGS PCMSC Marine Facility
- Model - SQUID-5 V1.1
- Weight - 52kg in air
- Dimensions – W 1.5 m, L 1.25 m, H 0.9 m
- Power Requirements 120 VAC – 240 VAC, total system consumption 300 watts max.
Operational Characteristics
- Minimum Operational Depth - limited by near focus to water depths deeper than 1 meter
- Maximum Operational Depth - limited by water clarity
- Limitations - maximum tow speed of 3 knots, sea state 1.5 meters or less, water depth & clarity limit acceptable areas of operation
- Power Outputs / Freq. Ranges – N/A, It is a passive camera system
- Ship’s Requirements - light lifting and towing capability, low speed maneuverability
Additional Equipment Required
A support vessel, a GNSS base station or GNSS reference network for post processing position data.
Complementary Systems
SwathPlus 468kHz Seafloor Mapping System
Learn more about USGS equipment and the teams that design, build, and operate instruments for data collection.
PCMSC MarFac Field Equipment and Capabilities
PCMSC Marine Facility (MarFac)
Data from SQUID-5
Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021
Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography
Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography
Point clouds, bathymetric maps, and orthoimagery generated from overlapping lakebed images acquired with the SQUID-5 system near Dollar Point, Lake Tahoe, CA, March 2021
Overlapping lakebed images and associated GNSS locations acquired near Dollar Point, Lake Tahoe, CA, March 2021
SQUID-5 structure-from-motion point clouds, bathymetric maps, orthomosaics, and underwater photos of coral reefs in Florida, 2019
Colored shaded-relief bathymetric map and orthomosaic from structure-from-motion quantitative underwater imaging device with five cameras of the Lake Tahoe floor, California
Below are multimedia items associated with this project.
Diagram of the SQUID-5 towed surface vehicle and the waterproof camera housings with labeled components. The camera mounting mechanism aligns the camera axially with the dome and allows the camera to be adjusted fore and aft to accommodate various lens types and enable alignment with the glass port radius of curvature for minimal distortion.
Diagram of the SQUID-5 towed surface vehicle and the waterproof camera housings with labeled components. The camera mounting mechanism aligns the camera axially with the dome and allows the camera to be adjusted fore and aft to accommodate various lens types and enable alignment with the glass port radius of curvature for minimal distortion.
The SQUID-5 is an acronym for a Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with 5 cameras.
The SQUID-5 is an acronym for a Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with 5 cameras.
Read our publications about SQUID-5.