Patent ID: 11954832
Assignee: BEIJING AINFINIT TECHNOLOGY CO., LTD
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for three-dimensional reconstruction, comprising:
acquiring images of a reconstruction space captured by N cameras as N current images, in response to an object entering the reconstruction space, wherein N is a positive integer greater than or equal to 2, and the reconstruction space is covered by fields of view of the N cameras;
obtaining first foreground-background differences of all position points in the N current images, according to the N current images and N initial background images of the reconstruction space, wherein the N initial background images correspond to the N current images, and are captured by the N cameras when the reconstruction space is empty;
obtaining a second foreground-background difference of each position point in the reconstruction space based on the first foreground-background differences of target position points corresponding to the first position point, wherein the target position points are in the N current images, respectively, and the second foreground-background difference is positively correlated with the first foreground-background difference of each of the target position points, and
filtering all position points in the reconstruction space, based on the second foreground-background difference of each position point in the reconstruction space and a preset foreground-background threshold, to reconstruct the object three-dimensionally.