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  • Academy of Military Science and Technology  (3)
  • 1
    Online Resource
    Online Resource
    Academy of Military Science and Technology ; 2022
    In:  Journal of Military Science and Technology , No. CSCE6 ( 2022-12-30), p. 77-91
    In: Journal of Military Science and Technology, Academy of Military Science and Technology, , No. CSCE6 ( 2022-12-30), p. 77-91
    Abstract: Hand action recognition in rehabilitation exercises is to automatically recognize what exercises the patient has done. This is an important step in an AI system to assist doctors to handle, monitor and assess the patient’s rehabilitation. The expected system uses videos obtained from the patient's body-worn camera to recognize hand action automatically. In this paper, we propose a model to recognize the patient's hand action in rehabilitation exercises, which is a combination of the results of a deep learning network recognizing actions on Video RGB, R(2+1)D, and a main interactive object in the exercises detection algorithm. The proposed model is implemented, trained, and tested on a dataset of rehabilitation exercises collected from wearable cameras of patients. The experimental results show that the accuracy in exercise recognition is practicable, averaging 88.43% on the test data independent of the training data. The action recognition results of the proposed method outperform the results of a single R(2+1)D network. Furthermore, the better results show the reduced rate of confusion between exercises with similar hand gestures. They also prove that the combination of interactive object information and the action recognition improve the accuracy significantly.
    Type of Medium: Online Resource
    ISSN: 1859-1043
    Language: Unknown
    Publisher: Academy of Military Science and Technology
    Publication Date: 2022
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Academy of Military Science and Technology ; 2022
    In:  Journal of Military Science and Technology , No. CSCE6 ( 2022-12-30), p. 92-104
    In: Journal of Military Science and Technology, Academy of Military Science and Technology, , No. CSCE6 ( 2022-12-30), p. 92-104
    Abstract: Recently, thermal imaging modules equipped for infantry soldiers have been a trend to improve the combat ability of soldiers. Soldiers have to perform many different tasks at the same time, so it is necessary to equip them with the tools of automatic target detection, especially human objects detection, in practice. Hence, there is a need to intelligently optimize the effectiveness of thermal imaging equipment. New artificial intelligence and deep learning(DL) approaches are applicable methods that show superior accuracy compared to previous methods. However, state-of-the-art DL methods depend on the generality and diversity of the training data set. To address this issue, our paper presents the DeepThermal Outdoor thermal imaging data set, which is collected from equipment mounted on the body of infantry at various terrain locations. The labeled dataset focuses on human objects with different locomotion postures, and it contains 10,190 images and 22,464 labeled human-objects. Finally, the experiment is conducted with several DL methods using the proposed dataset, and the results show its contribution to the improvement of the performance of DL methods to detect humans on thermal images as well as to evaluate the practical applicability of a DL.
    Type of Medium: Online Resource
    ISSN: 1859-1043
    Language: Unknown
    Publisher: Academy of Military Science and Technology
    Publication Date: 2022
    Location Call Number Limitation Availability
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  • 3
    In: Journal of Military Science and Technology, Academy of Military Science and Technology, Vol. 88 ( 2023-06-25), p. 154-161
    Abstract: Bồi đắp kim loại trực tiếp bằng laser (Direct Laser Metal Deposition-DLMD) là công nghệ tạo hình hiện đại, có tiềm năng ứng dụng lớn trong các ngành công nghiệp trọng điểm. Có nhiều yếu tố ảnh hưởng tới chất lượng lớp tạo hình, trong đó, các thông số công nghệ có ảnh hưởng rất lớn. Bài báo nghiên cứu ảnh hưởng của các thông số công nghệ: công suất laser (P), lưu lượng cấp bột (Mp), tốc độ quét của đầu phun (V) đến các đặc trưng hình học của lớp tạo hình: chiều cao (h), chiều rộng (Wc) và độ sâu (hmix) khi tạo hình vật liệu 316L bằng công nghệ DLMD. Kết quả cho thấy: Công suất laser có ảnh hưởng lớn nhất đến chiều rộng đường đơn (chiếm 45,97%) và chiều sâu đường đơn (chiếm 42,05%); Trong khi đó, lưu lượng cấp bột ảnh hưởng lớn nhất đến chiều cao đường đơn (chiếm 58,44%).
    Type of Medium: Online Resource
    ISSN: 1859-1043
    URL: Issue
    Language: Unknown
    Publisher: Academy of Military Science and Technology
    Publication Date: 2023
    Location Call Number Limitation Availability
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