Applying Super-Resolution and Tomography Concepts to Identify Receptive Field Subunits in the Retina
Fig 2
Application of STR to model simulations with realistic settings.
Three sample layouts with 6 (top row), 10 (middle row), and 14 (bottom row) subunits are depicted. First column shows the subunit layouts, with black ellipses portraying the 1.5 σ ellipses of the subunits and red ellipses the 1.5 σ ellipses of the receptive fields. Second column is the receptive field. Third column contains the sinograms for spike rates, i.e., expected spike counts. Fourth column shows the reconstructions from the sinograms in the third column. Red denotes positive values, blue negative values. Fifth column holds the sinograms for measurements of stochastic spike counts. Each combination of the 36 stripe angles and 60 stripe positions was measured only once. Gaussian smoothing has been applied to these sinograms (described in more detail in the main text). Last column pictures reconstructions from the sinograms in the penultimate column.