Figure 6
From: Quantification of expected information gain in visual acuity and contrast sensitivity tests
Distributions and information gain in contrast sensitivity tests. (a,b) Distributions of peak gain, peak spatial frequency, and bandwidth of the observers in Simulations 1 and 2. (c) From left to right: Distributions of the test scores \(P\left({y}_{j}|{x}_{i}\right)\) of one representative simulated observer \({x}_{i}\) in the Pelli–Robson, CSV-1000, and qCSF test (25 trials), with results from the qCSF test scored as AULCSF, and CSF at six spatial frequencies. (d,e) Distributions of the test scores \(P\left({y}_{j}\right)\) of the populations in Simulations 1 and 2, respectively. (f) Expected information gain \(IG\left(Y|X\right)\) of the various tests in Simulation 1 (left) and Simulation 2 (right). For qCSF, results from testing with 15, 25, and 50 trials are shown. The blue bars represent \(IG\left(Y|X\right)\); the gray bars represent residual entropy \(H\left(Y|X\right)\).
