FIGURE 2.

A, Displays the image similarity signal with the tie-point phase (red square) and chain-point phases (blue circles). The values (horizontal solid lines) of the fractions of the signal range, used to calculate the chain-point phases, are shown. B, The volumes corresponding to the chain-point phases are determined by sequentially warping the tie-phase with the required motion vector fields. The chain-point phases are used as a starting point to generate any arbitrary phase. For instance, the m^th phase is calculated with 2 deformations (tie-phase → chain-point 1; chain-point 1 → m^th phase) and the n^th phase requires 3 deformations (tie-phase → chain-point 1; chain-point 1 → chain-point 2; chain-point 2 → n^th phase).