3D Motion Analysis based on Optical Doppler Imaging
基于光学多普勒成像的 3D 运动分析
基本信息
- 批准号:21K17758
- 负责人:
- 金额:$ 2.5万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Early-Career Scientists
- 财政年份:2021
- 资助国家:日本
- 起止时间:2021-04-01 至 2022-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This year, the research concentrated on the principles of heterodyne-mode time-of-flight cameras. Heterodyne-mode time-of-flight cameras encode the target radial velocity into the measurement, which is unique compared with conventional time-of-flight sensing, and is promising for high-speed velocity sensing. The proposed method greatly extends the conventional method, making it more accurate, more robust, and more accessible.In this study, a new framework that can simultaneously decode distance and velocity from four measurements is built. With a novel theoretical discussion, I proposed a heterodyne frequency that is optimal for velocity sensing. For the first time, it was made clear that the target distance has a huge influence on the velocity sensing precision. Finally, I proposed two decoding methods, including an optimization-based decoding and a fast decoding method. The proposed method is validated on a hardware platform composed of commercially available devices and has obvious improvement compared with conventional work in terms of accuracy and robustness.This work is the first thorough theoretical discussion on heterodyne-mode time-of-flight cameras for velocity sensing. I pointed out the limitations and mistakes of the conventional work, and proposed an advanced method based on the theoretical discussion. The proposed method is the only method that can make instantaneous, full-field imaging of velocity, which will have a huge impact in the field such as sensing and robotics. This study is provisionally accepted by a top journal in the related field.
今年的研究集中在外差模式飞行时间相机的原理上。外差模式飞行时间相机将目标径向速度编码到测量中,这与传统的飞行时间传感相比是唯一的,并且有希望用于高速速度传感。该方法大大扩展了传统的方法,使其更准确,更强大,更accessibility.In这项研究中,一个新的框架,可以同时解码距离和速度从四个测量。通过一个新颖的理论讨论,我提出了一个外差频率,这是最佳的速度传感。首次明确了目标距离对速度传感精度的巨大影响。最后,提出了两种解码方法,包括基于优化的解码方法和快速解码方法。该方法在商用设备组成的硬件平台上进行了验证,在精度和鲁棒性方面与传统方法相比有明显的提高,是对外差模式飞行时间相机速度传感的第一次深入的理论探讨。指出了常规工作的局限性和错误,并在理论探讨的基础上提出了改进的方法。所提出的方法是唯一可以对速度进行瞬时全场成像的方法,这将在传感和机器人等领域产生巨大影响。该研究已被相关领域的顶级期刊暂时接受。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
胡 云普其他文献
胡 云普的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
相似海外基金
Ballistocardiogram beat detection of beef cattle using piezoelectric effect and/or Doppler effect
利用压电效应和/或多普勒效应对肉牛进行心冲击图搏动检测
- 批准号:
21K14945 - 财政年份:2021
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Probing a super excited molecule during the dissociation via electron Doppler effect
通过电子多普勒效应探测解离过程中的超激发分子
- 批准号:
15K13543 - 财政年份:2015
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of in-beam Mossbauer spectroscopy without utilizing the Doppler effect
不利用多普勒效应开发束内穆斯堡尔光谱
- 批准号:
13640376 - 财政年份:2001
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on Slow-Wave Cyclotron Maser Based on Anomalous Doppler Effect
基于反常多普勒效应的慢波回旋脉泽研究
- 批准号:
12480116 - 财政年份:2000
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Fetal Breathing Movement Monitoring System using Ultrasonic Doppler effect.
利用超声波多普勒效应的胎儿呼吸运动监测系统。
- 批准号:
05650377 - 财政年份:1993
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Exploration of the Transverse Doppler Effect
横向多普勒效应的探索
- 批准号:
9005986 - 财政年份:1990
- 资助金额:
$ 2.5万 - 项目类别:
Continuing Grant
ROW: Measuring the Relativistic Doppler Effect with Laser Spectroscopy (Physics)
ROW:用激光光谱测量相对论多普勒效应(物理)
- 批准号:
8508594 - 财政年份:1985
- 资助金额:
$ 2.5万 - 项目类别:
Continuing Grant