• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Convention on Information and Communication Technology, Electronics and Microelectronics >Estimating diver orientation from video using body markers
【24h】

Estimating diver orientation from video using body markers

机译：使用身体标记从视频中估计潜水员的方向

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Diving is a dangerous activity during which diver's safety is significantly compromised, both due to unpredictable environment and dependence on technical systems for life support. Introducing the concept of a cognitive autonomous underwater vehicle (AUV), that is capable of guiding, observing and assisting the diver at all times, requires precise positioning of the AUV relative to the diver. While diver orientation can be measured locally on the diver and transmitted to the underwater vehicle using acoustic communication channels, the problems of limited bandwidth and communication delay can influence the quality of AUV positioning. Another approach, which is considered in this paper, is to use remote sensing techniques, i.e. mono or stereo camera on board the AUV, to determine orientation of the diver based on markers placed on the divers shoulders. As an initial step, laboratory experiments were conducted where orientation of two physically coupled spherical markers is determined by using mono and stereo camera, and compared to the ground truth orientation obtained from an inertial measurement unit. The obtained results prove the concept in laboratory conditions, with the limitations imposed on the distance of markers relative to the camera.
机译：潜水是一项危险的活动，在此期间，由于不可预测的环境和对生命维持的技术系统的依赖，潜水员的安全受到严重损害。引入能够随时引导，观察和协助潜水员的认知自主水下航行器（AUV）的概念，需要将AUV相对于潜水员进行精确定位。虽然可以在潜水员上本地测量潜水员方位，并使用声学通信信道将其传输到水下车辆，但是带宽有限和通信延迟问题可能会影响AUV定位的质量。本文考虑的另一种方法是使用遥感技术，即AUV上的单声道或立体声相机，基于放置在潜水员肩膀上的标记来确定潜水员的方向。作为第一步，进行了实验室实验，其中使用单声道和立体声相机确定了两个物理耦合的球形标记的方向，并将其与从惯性测量单元获得的地面真实方向进行了比较。所获得的结果在实验室条件下证明了该概念，但对标记相对于相机的距离施加了限制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号