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公开(公告)号：WO2022270667A1
公开(公告)日：2022-12-29
申请号：PCT/KR2021/008790
申请日：2021-07-09
IPC: A61B6/02 , A61B6/00 , G06T11/00 , A61B6/025 , A61B6/4007 , A61B6/505 , A61B6/5205 , G06T11/006 , G06T2207/10072 , G06T2207/10116 , G06T2211/421 , G06T2211/424 , G06T7/0012
Abstract: 본 개시는 복수의 엑스선 소스를 포함하는 엑스선 발생기, 복수의 엑스선 소스에서 조사되는 엑스선을 검출하여 복수의 투영 데이터를 생성하는 엑스선 검출기 및 복수의 투영 데이터 각각에 대하여 로그 투영을 적용하고, 로그 투영된 투영 데이터에 가중 투영을 적용하고, 가중 투영된 투영 데이터에 양방향 램프 필터를 적용하고, 양방향 램프 필터가 적용된 투영 데이터 각각을 기초로 재구성된 단층 영상을 생성하는 프로세서를 포함하는 엑스선 촬영 장치를 제공한다.
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Patent Agency Ranking
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公开(公告)号：KR101145961B1
公开(公告)日：2012-05-15
申请号：KR1020100012727
申请日：2010-02-11
Applicant: 한국과학기술원
Abstract: PURPOSE: A method and apparatus for multi-hop time synchronization for wireless sensor networks are provided to flexibly change a network configuration. CONSTITUTION: A gateway(110) receives a request message. The gateway creates a response message including a reference time. The gateway transmits the created response message to an intermediate node. The gateway creates a response follow up message including a process time from the reference time to the response message receiving time. The gateway outputs the created response follow up message to an intermediate node.
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公开(公告)号：KR100949120B1
公开(公告)日：2010-03-24
申请号：KR1020090097518
申请日：2009-10-14
Applicant: 한국과학기술원
Abstract: PURPOSE: A multi-hop global time synchronization method for efficiently synchronizing a time is provided to remove inconvenience that an additional device or all nodes must be connected to the Internet. CONSTITUTION: A time is synchronized between a gateway and a server in the wide area network according to one algorithm among NTP(Network Time Protocol) and SNTP(Simple Network Time Protocol). The visual information is broadcasted from gateway to the sensor node. The broadcast time delay is calculated(S130). The time synchronization require-message is transmitted from the sensor node to gateway. The request time delay is calculated. The time of sensor nodes is synchronized through the broadcast time delay and request time delay(S170).
Abstract translation: 目的：提供有效同步时间的多跳全局时间同步方法，以消除附加设备或所有节点必须连接到Internet的不便。 规定：根据NTP（网络时间协议）和SNTP（简单网络时间协议）中的一种算法，广域网中网关和服务器之间的时间同步。 视觉信息从网关传播到传感器节点。 计算广播时间延迟（S130）。 时间同步要求消息从传感器节点传送到网关。 计算请求时间延迟。 传感器节点的时间通过广播时延和请求时延来同步（S170）。
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公开(公告)号：KR1020110092981A
公开(公告)日：2011-08-18
申请号：KR1020100012727
申请日：2010-02-11
Applicant: 한국과학기술원
CPC classification number: H04W56/001 , H04W84/18
Abstract: PURPOSE: A method and apparatus for multi-hop time synchronization for wireless sensor networks are provided to flexibly change a network configuration. CONSTITUTION: A gateway(110) receives a request message. The gateway creates a response message including a reference time. The gateway transmits the created response message to an intermediate node. The gateway creates a response follow up message including a process time from the reference time to the response message receiving time. The gateway outputs the created response follow up message to an intermediate node.
Abstract translation: 目的：提供用于无线传感器网络的多跳时间同步的方法和装置，以灵活地改变网络配置。 构成：网关（110）接收请求消息。 网关创建一个包含参考时间的响应消息。 网关将创建的响应消息发送到中间节点。 网关创建响应跟踪消息，包括从参考时间到响应消息接收时间的处理时间。 网关将创建的响应后续消息输出到中间节点。
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