Fig. 1From: Decoding intra-tumoral spatial heterogeneity on radiological images using the Hilbert curveThe Hilbert curve H(t) from level 1 to level 8. The size of the surjective plane unit square ranges correspondingly from \(2^{1}\)āĆā\(2^{1}\) to \(2^{8}\)āĆā\(2^{8}\)Back to article page