Vision guides thought and action. To do so usefully it must inform us about critical features of the world around us. What we can learn about the world is limited by the initial stages of visual processing. Physicists, biologists and psychologists have created quantitative models of these stages, and these models enable us to quantify the encoded information. We have integrated these models as image computable software: the Image Systems Engineering Toolbox for Biology (ISETBio). The software is an extensible set of open-source modules that model the three-dimensional scene spectral radiance, retinal image formation (physiological optics), spatial sampling by the cone photoreceptor mosaic, fixational eye movements, and phototransduction. This webinar, hosted by the OSA Color Technical Group, will provide an overview of the ISETBio modules as well as examples of how to use the software to understand and model human visual performance.
What You Will Learn:
How to use the ISETBio software tools (Matlab) to (1) Create a 3D spectral scene, (2) Compute the corresponding retinal irradiance of a scene, (3) Calculate photoreceptor excitations and photocurrent, (4) Model eye movements, and (5) Predict contrast and chromatic sensitivity.
Who Should Attend:
People interested in the properties of the initial visual encoding of light and in particular those who would like software tools to calculate the properties of the front end of the visual system.