The invention discloses an
underwater target three-dimensional
reconstruction method based on line
structured light. The method includes the following steps that a, an
underwater two-dimensional image including depth information is acquired; b, enhancement
processing is conducted on the
underwater two-dimensional image; c,
noise reduction
processing is conducted on the two-dimensional image acquired in the step b; d,
image edge detecting and image shape
processing are carried out on the two-dimensional image acquired in the step c, and the center of each
laser streak is extracted; e, the two-dimensional image acquired in the step d is calibrated; f, three-dimensional coordinates are acquired from the two-dimensional image acquired in the step e; g, the three-dimensional coordinates are reconstructed through computer high-level
programming languages, namely visual underwater target three-dimensional information is obtained. By means of the underwater target three-dimensional
reconstruction method based on line
structured light, the influence on detecting precision because of
suspended matter in water, light absorbing and scattering by
seawater, uneven light fields and the like can be effectively lowered, wide-angle and long-distance underwater target three-dimensional
information extraction is achieved, and underwater long-distance high-precision real-time target three-dimensional detection is realized.