US 11,656,373 B2
Methods and systems for forming images with radiation
Peiyan Cao, Shenzhen (CN); and Yurun Liu, Shenzhen (CN)
Assigned to SHENZHEN XPECTVISION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by SHENZHEN XPECTVISION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on Feb. 19, 2021, as Appl. No. 17/179,858.
Application 17/179,858 is a continuation of application No. PCT/CN2018/109408, filed on Oct. 9, 2018.
Prior Publication US 2021/0173102 A1, Jun. 10, 2021
Int. Cl. G01T 1/24 (2006.01); G06T 5/00 (2006.01)
CPC G01T 1/247 (2013.01) [G06T 5/001 (2013.01); G06T 2207/10116 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a signal at a pixel in an array of pixels of a radiation detector, wherein the signal is generated from radiation incident on the radiation detector;
obtaining a corrected signal by correcting the signal with a combination of a set of reference signals generated from the radiation at a set of reference pixels in the array, wherein a set of weights are respectively applied to the set of reference signals in the combination; and
forming an image based on the corrected signal;
wherein the set of weights is a function of a location of the pixel with respect to the array; and
wherein each pixel in the array of pixels encompasses a portion of a radiation absorption layer of the radiation detector and the set of weights is a function of a thickness of the radiation absorption layer, or wherein the set of weights is a function of a direction of propagation of the radiation at the pixel.