A Study on the Accuracy and Application of IMU Motion Capture for Virtual Production

IMU-based motion capture systems are gaining attention as a low-cost, easy-to-install alternative to Optical Motion Capture (OMC) due to their wide capture volume. This study analyzes the technical features of IMU systems and compares their accuracy with OMC, reviewing correction techniques to address magnetic interference and sensor drift. Six prior studies showed that post-correction accuracy had an RMSE of 0.3-7.2, with sports movements achieving 79.32-100% accuracy. IMU systems are advantageous for real-time processing and live performance, making them valuable in virtual production. However, they have limitations in precise motion capture, such as facial capture, requiring hybrid system support and further technological advancements.