Habitat Mapping Camera (HABCAM)

This dataset entails imagery collected using the HabCam towed underwater vehicle and annotated data on objects or habitats in the images and notes on image qualities. Most HabCam images and data are collected as part of the NEFSC sea scallop survey but the vehicle is occasionally used for other surveys. For each survey, a subset of images are selected and manually annotated for the presence of target species. The PostgreSQL database contains basic image metadata (date, time, latitude, longitude, depth, etc.) as well as the data from the manual annotations. Eventually, other software-derived data products will be added including bottom rugosity and substrate composition.

NEFSC Data Access Procedure:

1. Formal request in writing usually to the data owner/contact or Center Director;

2. Requester is contacted by data owner to review and verify the request content and details for data delivery options.

3. If data is confidential then owner will determine if the data may be released to the requester;

4. If data can be released, the data is downloaded and packaged for delivery electronically; or the requester may be directed to where the data is available online.

NEFSC Data Access Constraint:

If data is stored on an internal NEFSC network, the requester may not have direct access to query the data unless they are also authorized for network access.

Processed PNG image files

Postgres

Pre and post-cruise calibration of cameras. Cross-validation between sonar-derived altitudes and altitudes calculated from stereo disparity.

Training of annotators on standard image set. Follow-up on training and assessment of skills. Post Audits by internal editors.

No archiving intended because of volume of data

Archival of source data preserving unaltered collected data, Scheduled backups, Remote storage backups, Password protection

Annual NEFSC scallop survey