Liquid level detection and capacity calculation in spherical container based on image vision

There are many special devices and materials in large optical instruments, among which special chemicals stored in spherical metal containers are only stored in low temperature metal containers due to their special chemical properties. In daily use, it is impossible to know the amount of material left in the container by measurement. It is filled before each use, and each filling will cause material loss. Therefore, this paper presents a method to detect liquid level and calculate the remaining capacity after processing the image generated by X-ray camera based on computer vision.