| CPC G06T 5/50 (2013.01) [G06T 3/4038 (2013.01); G06T 2207/10116 (2013.01); G06T 2207/20221 (2013.01)] | 26 Claims |
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1. A method, comprising:
for i=1, . . . , M, and j=1, . . . , Ni, sending beam groups (i, j) toward a same object and then toward a same image sensor;
for each value of i and each value of j, capturing with the image sensor a partial image (i, j) of the object using radiation of a beam group (i, j) that has transmitted through the object;
for each value of i, stitching the partial images (i, j), j=1, Ni resulting in a stitched image (i) of the object; and
reconstructing a three-dimensional image of the object based on the stitched images (i), i=1, M,
wherein the beam groups (i, j), i=1, M, and j=1, Ni are sent one beam group at a time,
wherein the image sensor comprises P active areas,
wherein for each value of i and each value of j, the beam group (i, j) comprises P radiation beams sent simultaneously and aimed respectively at the P active areas,
wherein M and Ni, i=1, M are integers greater than 1,
wherein P is a positive integer and P >1,
wherein the beam groups (i, j), i=1, M, and j=1, Ni are sent from a mask,
wherein for each value of i, the beam groups (i, Ni are sent from a window group (i) of the mask,
wherein for each value of i, the window group (i) comprises P windows,
wherein for each value of i and each value of j, the P radiation beams of the beam group (i, j) are sent from respectively the P windows of the window group (i),
wherein at least a pair of q and r are of 1, . . . , M,
wherein q≠r,
wherein at least a pair of s and t are of 1, . . . , Nq and 1, Nr respectively,
wherein a position of the mask when the partial image (q, s) is captured and a position of the mask when the partial image (r, t) is captured are the same,
wherein a position of the image sensor when the partial image (q, s) is captured and a position of the image sensor when the partial image (r, t) is captured are the same, and
wherein q, s, r, t, Nq and Nr are each a positive integer.
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