Biological Vision Systems - Architecture and Signal Characteristics
Pp. 8-14 (7)
Michael Edward Farmer
Biological vision systems have been successfully modeled as hierarchical
systems with lower level subsystems performing simpler tasks such as attention
direction towards moving objects, and higher level subsystems performing tasks such as
tracking, object recognition and scene understanding. Likewise robotics researchers
have found great utility in layered systems such as the subsumption architecture. Within
biological sensing systems there has been the detection of chaotic signals within the
neural pathways. Chaotic systems have some unique behaviors such as basins of
attraction that allow systems to quickly transit between states. Additionally, small
changes to chaotic signals can lead to dramatic changes in the outputs which can make
sensing organs very sensitive to subtle events. Researchers to date tend to focus on
either the use of the macroscopic models or the microscopic models in their avenues of
research. We will uniquely adopt both the structural macroscopic model of biological
systems as well as the chaotic microscopic nature of biological systems in this text.
Dividing the complex vision task into a hierarchy will allow us to address increasing
levels of complexity, yet show how chaos-based methodologies can be applied through
all of these levels.
Neural signals, neural pathways, basins of attraction, visual cortex.
Department of Computer Science, Engineering and Physics 207 Murchie Science Building 303 E. Kearsley Street Flint, Michigan USA.