CNN+RNN detection errors for angles, lengths, and coordinates as a function of magnitude and length. The y-axes of the top and bottom rows are logarithmic, while the y-axes of the middle row are in symmetric logarithmic scale with values between −10⁻¹ and 10⁻¹ in linear scale. In the middle row, negative y-values indicate that the detected lengths are shorter than the ground-truth lengths, while positive values indicate that the detected lengths are longer than the ground truth. The 70th percentile length errors in the middle plots are technically 30th percentile since the length errors are typically negative.