Fast calibration for ultrasound imaging guidance based on depth camera

TL;DR

This paper introduces a rapid calibration method for ultrasound imaging guidance using a depth camera, facilitating accurate needle tip localization in robot-assisted procedures.

Contribution

A novel depth camera-based calibration device and method for ultrasound imaging guidance, enabling easier and more accurate puncture localization.

Findings

Calibration accuracy validated through experiments

Device is easy to deploy in clinical settings

Improves puncture guidance in robot-assisted ultrasound

Abstract

During the process of robot-assisted ultrasound(US) puncture, it is important to estimate the location of the puncture from the 2D US images. To this end, the calibration of the US image becomes an important issue. In this paper, we proposed a depth camera-based US calibration method, where an easy-to-deploy device is designed for the calibration. With this device, the coordinates of the puncture needle tip are collected respectively in US image and in the depth camera, upon which a correspondence matrix is built for calibration. Finally, a number of experiments are conducted to validate the effectiveness of our calibration method.