Most proton storms take two or more hours from the time of visual detection to reach Earth's orbit.

Hence, a visual detection needs to be followed by transurethral surgery.

Since a submarine's bridge was very close to the water, their range of visual detection was quite limited.

Captain, we have visual detection of an object dead ahead.

In space, visual detection was still one of the better ways to find things.

Another advantage was that oil gave off considerably less smoke, making visual detection more difficult.

It is thought that the comet may have broken into pieces too small for visual detection.

This causes predators to approach from the true head end resulting in early visual detection.

In theory, active camouflage could provide perfect concealment from visual detection.

It has been used in many other applications, including statistical parsing and visual detection.