Multiframe Astronomical Image Registration Based on Block Homography Estimation

Figure 7

DAISY descriptor proposed by our proposed three-order accumulation of one key point in satellite image: (a) the three-order accumulation processed descriptors of two key points at the same position in two different satellite images; (b) the three-order accumulation processed descriptors of two key points at the different positions in one satellite image.

(a)

(b)