研究生: |
Shiela Mecha Cabahug Shiela Mecha Cabahug |
---|---|
論文名稱: |
基於人體姿勢估計與機器學習的羽球球種分類 Badminton Strokes Classification Based on Human Pose Estimation and Machine Learning |
指導教授: |
林淵翔
Yuan-Hsiang Lin |
口試委員: |
林淵翔
Yuan-Hsiang Lin 阮聖彰 Shang-Jang Ruan 林昌鴻 Chang-Hong Lin 林敬舜 Ching-Shun Lin |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 英文 |
論文頁數: | 95 |
中文關鍵詞: | 動作識別 、羽球 、擊球動作檢測 、姿態估計 、球種分類 、即時 |
外文關鍵詞: | action recognition, badminton, hit action detection, pose estimation, stroke classification, real-time |
相關次數: | 點閱:310 下載:2 |
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對教練和球員來說,識別羽球擊球動作對於評估技術技能和賽中表現分析至關重要。然而,純粹依靠人類的視覺和判斷是一項艱鉅的任務。本研究目標在使用人體姿態估計和機器學習去訓練個人和通用的羽球擊球分類模型。
在本研究中,個人模型訓練了 11 個受試者的個人分類模型,而通用模型則以 10 個受試者的數據去做訓練和測試。這二個分類模型的數據特徵由 30 幀的 25 個身體姿態座標點組成。用來訓練分類模型的三種機器學習演算法分別是CNN、LSTM和CNN-LSTM。個人模型在 440 個數據樣本上使用 75:25 比例的訓練-測試拆分數據驗證集,具有 11 個分類動作的3 個模型的平均準確率分別為94.32%、89.88% 和 89.51%。
另一方面,通用模型使用 7 個受試者的數據作為訓練數據,3 個受試者的數據作為測試數據,分別對 11 個和 9 個動作進行分類。 CNN、LSTM 和 CNN-LSTM 演算法在具有 11 個動作分類的通用模型上的平均準確率分別為 83%、82% 和 74%。然而,在具有 9 個動作分類的通用模型的平均準確率分別為 90%、88% 和 87%。
對 11 個和 9 個分類動作訓練好的 CNN 通用模型,準確率分別為 83% 和 90%,是用於預測 3 個測試對象的即時動作分類模型。我們使用即時擊球動作偵測算法去提取即時數據,在11個和9個分類動作的擊球偵測準確率分別為 89.27% 和 92.11%。而對於 11 個和 9 個動作分類,訓練模型的即時平均準確率分別為 72.67% 和 75.00%。
For coaches and players, identifying badminton stroke is crucial for evaluating technical skills and in-play performance analysis. However, relying purely on human visuals and judgment is a strenuous task. This study aims to train a personal and general badminton stroke classification model based on human pose estimation and machine learning.
In this study, the personal model trains a personal classification model for 11 subjects, while the general model is trained and tested on data from 10 subjects. The two classification model’s data feature consists of the 25-body pose model of 30 frames. The three machine learning algorithms are CNN, LSTM, and CNN-LSTM selected to train the classification model. The personal model uses a 75:25 ratio train-test split data validation set on 440 data samples, and the average accuracies of the 3-personal models with 11 classified actions are 94.32%, 89.88%, and 89.51%, respectively.
On the other hand, the general model classified 11 and 9 actions using 7 subjects’ data as train data and 3 subjects’ data as test data. The CNN, LSTM, and CNN-LSTM algorithms’ average accuracies on the general model with 11 actions are 83%, 82%, and 74%, respectively. However, the average accuracies of the general model with 9 actions are 90%, 88%, and 87%, respectively.
The trained CNN general model with 83% and 90% accuracy for 11 and 9 classified actions is the model used to predict real-time actions of the 3 test subjects. The real-time data is extracted based on the real-time hit action detection algorithm with 89.27% and 92.11% accuracy for 11 and 9 classified actions. The real-time average accuracy of the trained classification model is 72.67% and 75.00% for 11 and 9 actions, respectively.
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