FürElise: Capturing and Physically Synthesizing Hand Motions of Piano Performance

Fuente: arXiv
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Autori principali: Wang, Ruocheng, Xu, Pei, Shi, Haochen, Schumann, Elizabeth, Liu, C. Karen
Natura: Preprint
Pubblicazione: 2024
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author Wang, Ruocheng
Xu, Pei
Shi, Haochen
Schumann, Elizabeth
Liu, C. Karen
author_facet Wang, Ruocheng
Xu, Pei
Shi, Haochen
Schumann, Elizabeth
Liu, C. Karen
contents Piano playing requires agile, precise, and coordinated hand control that stretches the limits of dexterity. Hand motion models with the sophistication to accurately recreate piano playing have a wide range of applications in character animation, embodied AI, biomechanics, and VR/AR. In this paper, we construct a first-of-its-kind large-scale dataset that contains approximately 10 hours of 3D hand motion and audio from 15 elite-level pianists playing 153 pieces of classical music. To capture natural performances, we designed a markerless setup in which motions are reconstructed from multi-view videos using state-of-the-art pose estimation models. The motion data is further refined via inverse kinematics using the high-resolution MIDI key-pressing data obtained from sensors in a specialized Yamaha Disklavier piano. Leveraging the collected dataset, we developed a pipeline that can synthesize physically-plausible hand motions for musical scores outside of the dataset. Our approach employs a combination of imitation learning and reinforcement learning to obtain policies for physics-based bimanual control involving the interaction between hands and piano keys. To solve the sampling efficiency problem with the large motion dataset, we use a diffusion model to generate natural reference motions, which provide high-level trajectory and fingering (finger order and placement) information. However, the generated reference motion alone does not provide sufficient accuracy for piano performance modeling. We then further augmented the data by using musical similarity to retrieve similar motions from the captured dataset to boost the precision of the RL policy. With the proposed method, our model generates natural, dexterous motions that generalize to music from outside the training dataset.
format Preprint
id arxiv_https___arxiv_org_abs_2410_05791
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle FürElise: Capturing and Physically Synthesizing Hand Motions of Piano Performance
Wang, Ruocheng
Xu, Pei
Shi, Haochen
Schumann, Elizabeth
Liu, C. Karen
Graphics
Artificial Intelligence
Sound
Audio and Speech Processing
Piano playing requires agile, precise, and coordinated hand control that stretches the limits of dexterity. Hand motion models with the sophistication to accurately recreate piano playing have a wide range of applications in character animation, embodied AI, biomechanics, and VR/AR. In this paper, we construct a first-of-its-kind large-scale dataset that contains approximately 10 hours of 3D hand motion and audio from 15 elite-level pianists playing 153 pieces of classical music. To capture natural performances, we designed a markerless setup in which motions are reconstructed from multi-view videos using state-of-the-art pose estimation models. The motion data is further refined via inverse kinematics using the high-resolution MIDI key-pressing data obtained from sensors in a specialized Yamaha Disklavier piano. Leveraging the collected dataset, we developed a pipeline that can synthesize physically-plausible hand motions for musical scores outside of the dataset. Our approach employs a combination of imitation learning and reinforcement learning to obtain policies for physics-based bimanual control involving the interaction between hands and piano keys. To solve the sampling efficiency problem with the large motion dataset, we use a diffusion model to generate natural reference motions, which provide high-level trajectory and fingering (finger order and placement) information. However, the generated reference motion alone does not provide sufficient accuracy for piano performance modeling. We then further augmented the data by using musical similarity to retrieve similar motions from the captured dataset to boost the precision of the RL policy. With the proposed method, our model generates natural, dexterous motions that generalize to music from outside the training dataset.
title FürElise: Capturing and Physically Synthesizing Hand Motions of Piano Performance
topic Graphics
Artificial Intelligence
Sound
Audio and Speech Processing
url https://arxiv.org/abs/2410.05791