Development of a surgical navigator for the cheiloplasty with real time three-dimensional measurement

实时三维测量唇整形手术导航仪的研制

基本信息

  • 批准号:
    09557167
  • 负责人:
  • 金额:
    $ 7.49万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1999
  • 项目状态:
    已结题

项目摘要

Selection of a rangefinder, examination of its measuring condition and accuracy, development of automatic extraction method of the facial landmarks from the data, and establishment of a evaluation method for facial morphology using the facial landmarks were respectively necessary for the development of a surgical navigator.1. Selection of a rangefinder, examination of its measuring condition and accuracyAs the measuring time of the rangefinder selected in this research was within 1 second and its measuring error was within 0.4%, its performance satisfied the requirement of the operation navigator. And, it was proven that the reproducibility of measurement was satisfactory, if the range finder was made to be located in certain range from the face plane without the standard photographing. However, as the machine weight was 8kg and there was a problem in order to move or set over the operating table, some restriction was applied to photographing direction and method.2. Development of auto … More matic extraction method of the facial landmarks from the dataThe extraction of the facial landmarks as an important function of the navigator has been carried out until now by the manual operation. In this study, we thought that the automatic operation was indispensable for smooth operation of the navigator, and tried to realize it. Since the coordinate system setting and exact definition of the landmarks have not been made, it was difficult to accurately extract them until now. Then, we realized semiautomatic extraction of the landmarks with minimum manual operation by setting coordinate system on the face, making numerical definition of the landmarks, and setting field of view. At present, though it had not come to the perfect automation, it was succeeded in the development of the semi-automatic system in which the operation time drastically decreases.3. Establishment of a evaluation method for facial morphology using the facial landmarksWe measured facial forms of infants' faces which were the objects of primary cheiloplasty and developed its evaluation method. Getting cooperation of the Ikeda health center, we measured facial forms of the infants who visit there for 3 months examination by the range finder as a control. And, facial forms of infants with cleft lip were measured in preoperative, postoperative, and the change was examined. As the result, it became possible that features of facial forms in cleft lip infants were quantitatively shown. Less
测距仪的选择、测量条件和精度的检验、面部特征点的自动提取方法的开发和面部特征点评价方法的建立是外科导航仪研制的必要条件。测距仪的选择、测量条件和精度的检验本研究选用的测距仪测量时间在1秒以内,测量误差在0.4%以内,其性能满足作业导航器的要求。并证明了在不进行标准摄影的情况下,将测距仪定位在距离面一定范围内,测量的再现性是令人满意的。但是,由于机器重量为8kg,并且在操作台上移动或放置存在问题,因此对拍摄方向和方法进行了一些限制。人脸特征点的自动提取方法的开发人脸特征点的自动提取作为导航器的一项重要功能,一直以来都是通过人工操作来实现的。在本研究中,我们认为自动操作对于导航器的平稳运行是必不可少的,并试图实现它。由于坐标系统的设置和地标的精确定义还没有完成,所以目前很难准确提取。然后,通过在人脸上设置坐标系统、对地标进行数值定义、设置视场,以最少的人工操作实现地标的半自动提取。目前,虽然还没有达到完全的自动化程度,但已成功地开发了半自动化系统,大大缩短了操作时间。基于面相标尺的面相形态评价方法的建立我们对初创术对象婴儿的面相形态进行了测量,并建立了面相形态评价方法。在池田健康中心的合作下,我们测量了三个月来这里的婴儿的面部形态,用测距仪作为对照。并对唇裂患儿术前、术后的面部形态进行测量,观察其变化情况。因此,可以定量地显示唇裂婴儿的面部形态特征。少

项目成果

期刊论文数量(22)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Mori, Y., et al: "Three Dimensional Evaluation of the Nasal Forms with the Forked Flap Technique in Bilateral Cleft Lip and Palate Children"Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 552-555 (1997)
Mori, Y. 等人:“双侧唇腭裂儿童中使用叉状皮瓣技术对鼻形态进行三维评估”第八届国际腭裂及相关颅面异常大会的会议记录。
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    0
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Yamada,T., Sugahara, T., Mori, Y., et al: "Development of a 3-D Measurement and Evaluation System for Facial Forms with Liquid Crystal Range Finder and its Application to Cleft Surgery"Transaction of 8th International Congress on Cleft Palate and Related
Yamada,T.、Sugahara, T.、Mori, Y. 等人:“用液晶测距仪开发面部形状的 3D 测量和评估系统及其在裂隙手术中的应用”第 8 届国际会议的交易
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    0
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Sakuda,M., et al: "Quantitative Evaluation of Bone Graft in an Experimental Alveolar Cleft Model" Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 932-936 (1997)
Sakuda,M. 等人:“实验性牙槽裂模型中骨移植的定量评估”第八届国际腭裂及相关颅面异常大会的交易。
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    0
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菅原利夫、他: "外科的矯正治療法の現況" 大阪府歯科医師会雑誌. 560. 2-9 (1997)
菅原敏夫等:“正畸外科治疗的现状”大阪府牙科协会杂志 560. 2-9 (1997)。
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    0
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Yamada, T., Mori, Y., et al: "Quantitative three-dimensional evaluation before and after rhinoplasty"Jpn. J. Oral Maxillofac. Surg. 45. 427-434 (1999)
山田 T.、森 Y. 等:“鼻整形术前后的定量三维评价”Jpn。
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MORI Yoshihide其他文献

MORI Yoshihide的其他文献

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{{ truncateString('MORI Yoshihide', 18)}}的其他基金

Development of a real-time navigator for oral and maxillofacial surgery which can follow the head and jaw movement
开发可跟踪头部和下颌运动的口腔颌面外科实时导航器
  • 批准号:
    18390538
  • 财政年份:
    2006
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of three dimensional postoperative feature prediction method with multi-modal registration
多模态配准三维术后特征预测方法的开发
  • 批准号:
    10470431
  • 财政年份:
    1998
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).

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