SeaGIS Pty Ltd elm page

Enhanced length measurement

The Enhanced Length Measurement option provides additional information about measured lengths, and integrated support for building and manipulating species data files.

Using this option, PhotoMeasure retains a record of all species information used to identify measured objects. The species information can be viewed or edited within Photomeasure, and can be imported or exported as a text file for use in other software.

Enhanced Length Measurement provides the following information for each measurement (bolded labels are defined in the diagram below):

Measured length and precision.
An indiction of measurement quality.
Mid-point coordinates (useful in transect definition).
Range, the distance of the measured object from the camera system.
3D Direction, the 3D angle between the camera system Z axis and the measured object mid-point.
Horizontal and vertical direction, the orientation of the measured object resolved in vertical and horizontal components with respect to the camera system.