A 3D simulation head movement method and device, storage medium and electronic equipment

By generating quaternions through a built-in nine-axis IMU and complementary filtering algorithm in a portable eyepiece, the posture of the three-dimensional head model is adjusted, which solves the problem that portable video nystagmography devices cannot simultaneously record eye movements and head posture, thus achieving more accurate nystagmography.

CN122140235APending Publication Date: 2026-06-05ISEN TECH & TRADING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ISEN TECH & TRADING
Filing Date
2026-03-03
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing portable video nystagmography devices cannot accurately record both eye movements and head posture changes simultaneously, resulting in poor accuracy of examination results.

Method used

The patient's head posture data is acquired by the nine-axis IMU built into the portable eyepiece, preprocessed and calibrated, and a quaternion is generated using a complementary filtering algorithm to adjust the posture of the three-dimensional head model. The data is then displayed synchronously with the video frames to achieve accurate tracking and display of the head posture.

Benefits of technology

It improves the accuracy and comprehensiveness of nystagmus examination, ensuring that the system can accurately track and display the patient's eye movements and head posture regardless of changes in head posture, thus assisting doctors in conducting better examinations.

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Abstract

The application relates to a 3D simulation head movement method and device, a storage medium and an electronic equipment, and relates to the technical field of data processing. The method comprises the following steps: acquiring posture data of the actual head posture of a target patient at present through a nine-axis IMU built in a convenient eyepiece; pre-processing and calibrating the posture data respectively to obtain processed data; fusing gyroscope data, accelerometer data and magnetometer data in the processed data through a complementary filtering algorithm to obtain a head posture solution result of the target patient; generating a target quaternion under a world coordinate system according to the head posture solution result, the target quaternion being a quaternion representing the actual head posture; adjusting the posture of a head three-dimensional model of the target patient to the actual head posture according to the target quaternion; and synchronously displaying the head three-dimensional model in the actual head posture and the actual video frame of the target patient at present in a terminal. The application has the effect of improving the accuracy of examination results.
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