METHOD AND SYSTEM FOR SPATIAL CHARACTERIZATION OF AN IMAGING SYSTEM

摘要

A configuration system generates a calibration target to be printed, the target including a set of machine-readable and visually-identifiable landmarks and associated location-encoding marks which encode known locations of the landmarks. A plurality of test images of the printed calibration target is acquired by the system from an image capture assembly. Positions of the landmarks in the acquired test images and the location-encoding marks in the acquired test images are detected by the system. The system decodes the locations of the landmarks from the detected location-encoding marks and spatially characterizes the image capture assembly, based on the detected positions of the landmarks in the acquired test images and their decoded known locations.

主权项

1. A configuration system comprising:
a calibration target generation module which generates a spatially-characterized calibration target to be printed, the calibration target comprising a set of machine-readable and visually-identifiable landmarks and associated location-encoding marks which encode known locations of the landmarks; an image acquisition module which acquires a plurality of test images of the printed calibration target from an associated image capture assembly to be spatially characterized; a landmark detection module which detects positions of the landmarks in the acquired test images; an information decoding module which detects the location-encoding marks in the acquired test images and decodes the locations of the landmarks from the detected location-encoding marks; a spatial characterization module which spatially characterizes the image capture assembly, based on the detected positions of the landmarks in the acquired test images and the respective decoded known locations of the landmarks; and a processor which implements the calibration target generation module, image acquisition module, landmark detection module, information decoding module, and spatial characterization module.