Fly Vision: Moving Into the Motion Detection Circuit

Fly Vision: Moving Into the Motion Detection Circuit

The Reichardt detector model for fly motion vision has been around for more than 50 years, but a cellular implementation of the model has not yet been discovered. Detailed reconstruction of serial electron-microscopy sections has now revealed a circuit that might well provide the cellular basis for directional selectivity in motion vision.

Modelling Fly Motion Vision

Afterimages in fly motion vision

Afterimage-like effects modulate the responses of fly wide-field motion-sensitive cells following adaptation to stationary or slowly moving patterns. The origin of these afterimages is unclear. They have been interpreted as either the result of adaptation in the early visual system or as a direct consequence of the correlation scheme of motion detection. Using a combination of intracellular rec...

Stereo Vision Motion Detection from a Moving Platform

In order for robots to coexist with humans it is important that they are able to see and track them. Simple tasks like moving to avoid a passing human in the corridor require that the robot is able to estimate the position and velocity of the passer. Several systems for tracking people have been presented in the past, however few attempt tracking using vision on a moving platform. In the field ...

Fly Vision: Neural Mechanisms of Motion Computation

A wide range of novel approaches are being used to dissect the visual system of the fly, both the neural networks of motion detection and the performance of these networks under complex natural stimulus conditions.