Remove a TODO.

Making the penalizer smaller (as one should if adjusting it towards
a smaller range, as there's effectively I² numerator and I denominator)
does not seem to have much effect; actually, increasing it to 0.01
seems to give better results on alley-2, but that's the “wrong way”.

diff --git a/equations.frag b/equations.frag
index d4328decfb997cbdd2e12600c909ed44bdcb2df8..51e1394e13bfcc00d37ac70d3c8366a195e5930d 100644 (file)
--- a/equations.frag
+++ b/equations.frag
@@ -69,8 +69,6 @@ void main()
        // E_I term. Note that we don't square β_0, in line with DeepFlow;
        // it's probably an error (see variational_refinement.txt),
        // but squaring it seems to give worse results.
-       //
-       // FIXME: Should the penalizer be adjusted for 0..1 intensity range instead of 0..255?
        float beta_0 = texture(beta_0_tex, tc).x;
        float k1 = delta * beta_0 * inversesqrt(beta_0 * (I_x * du + I_y * dv + I_t) * (I_x * du + I_y * dv + I_t) + 1e-6);
        float A11 = k1 * I_x * I_x;
@@ -106,8 +104,7 @@ void main()
        float I_xt = I_tx_ty.x;
        float I_yt = I_tx_ty.y;
 
-       // E_G term. Same TODOs as E_I. Same normalization as beta_0
-       // (see derivatives.frag).
+       // E_G term. Same normalization as beta_0 (see derivatives.frag).
        float beta_x = 1.0 / (I_xx * I_xx + I_xy * I_xy + 1e-7);
        float beta_y = 1.0 / (I_xy * I_xy + I_yy * I_yy + 1e-7);
        float k2 = gamma * inversesqrt(