5-dimensional CSFs: spatial and temporal frequency, luminance, size and eccentricity

Fitting error

The following table summarizes the fitting errors, where each row corresponds to a different dataset. For each CSF model, the sensitivity error is reported in decibels [dB] as 20×√(mean((log₁₀S_pred − log₁₀S_ref)²)), and the Critical Flicker Frequency (CFF) error is reported in hertz [Hz] as √(nanmean((CFF_pred − CFF_ref)²)). As noted in the original elaTCSF paper, the dataset snowden1995 contains numerous spatial frequencies and is therefore used only for model fitting, not for testing.

Dataset	Fitting error		Sensitivity adjustment
Dataset	elaTCSF sensitivity error[dB]	elaTCSF CFF RMSE error [Hz]	elaTCSF
Average training	3.50 [dB]	8.95 [Hz]	N/A
hartmann1979	-	10.22 [Hz]	0.211
deLange1958b	-	1.99 [Hz]	0.753
krajancich2021	-	8.61 [Hz]	0.328
yancheng2024	2.32 [dB]	-	1.000
hvei_cff2022	-	5.25 [Hz]	0.073
deLange1958	2.59 [dB]	-	0.522
kelly1961	5.30 [dB]	-	0.119
snowden1995	-	-	0.455

Model parameters

elaTCSF

Parameters for TCSF component: p.E_thr = 6.48542; p.beta = 3.80022; p.elTCSF.lum_k = [ 1.76651 1.62402 0.533781 ]; p.elTCSF.ecc_k1 = 0.0330933; p.elTCSF.tcsf_ecc_k1 = 0.0341811; p.elTCSF.tcsf_lum_k1 = 0.222303; p.elTCSF.tcsf_lum_b1 = 0.667903; p.elTCSF.TCSF_xi = 153.998; p.elTCSF.TCSF_tau = 0.00292114; p.elTCSF.TCSF_kappa = 2.12547; p.elTCSF.TCSF_zeta = 0.721095;