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公开(公告)号：KR1020120126500A
公开(公告)日：2012-11-21
申请号：KR1020110044349
申请日：2011-05-12
Applicant: 한국항공대학교산학협력단
CPC classification number: H04N19/395 , G06T7/194 , H04N19/117 , H04N19/176 , H04N19/184
Abstract: PURPOSE: A distribution video codec apparatus and a sub information generating method using the same are provided to reduce complexity of encoding by including a sub information generating unit into an encoding unit. CONSTITUTION: A PDWZ(Pixel-Domain Wyner-Ziv) encoding unit encodes a WQ frame and a key frame. A PDWZ encoding unit(40) is connected with the PDWZ encoding unit. The PDWZ decoding unit decodes the WZ frame and the key frame. A sub information generating unit(30) of the PDWZ decoding unit separates a foreground and a background from the encoded image frame. The sub information generating unit generates sub information in consideration of the foreground and the background.
Abstract translation: 目的：提供一种分发视频编解码设备和使用其的子信息产生方法，以通过将子信息生成单元包括在编码单元中来降低编码的复杂度。 构成：PDWZ（像素域Wyner-Ziv）编码单元对WQ帧和关键帧进行编码。 PDWZ编码单元（40）与PDWZ编码单元连接。 PDWZ解码单元解码WZ帧和关键帧。 PDWZ解码单元的子信息生成单元（30）从编码图像帧分离前景和背景。 子信息生成单元考虑前景和背景生成子信息。
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公开(公告)号：KR1020110053690A
公开(公告)日：2011-05-24
申请号：KR1020090110334
申请日：2009-11-16
Applicant: 한국항공대학교산학협력단
IPC: H04L12/26 , H04L12/707 , H04L12/823 , H04N19/187 , H04L12/70
CPC classification number: H04L43/0829 , H04L45/24 , H04L47/32 , H04L2012/5647 , H04L2012/5648 , H04N19/187
Abstract: PURPOSE: An adaptation apparatus for reducing packet loss errors of a scalable video cording and a method thereof are provided to remove low dependent packet by analyzing the dependability between scalability layers. CONSTITUTION: A packet scheduler(205) is connected to a scheduling buffer in a node of an IP network which receives a packet from multiple paths. If it is considered the loss of input packets, the packet scheduler removes a low dependent packet in consideration of the dependability between scalability layers. The packet scheduler provides a packet multiplexer with the input packet from which the low dependent packet is removed. A packet loss detection unit(203) detects the packet loss pattern of each NAL by reading out the NALU(Network Abstraction Layer Unit) of the inputted scalable video.
Abstract translation: 目的：提供一种用于减少可伸缩视频线的分组丢失错误的适配装置及其方法，用于通过分析可扩展性层之间的可靠性来消除低依赖分组。 构成：分组调度器（205）连接到从多个路径接收分组的IP网络的节点中的调度缓冲器。 考虑到可扩展性层之间的可靠性，如果考虑到输入分组的丢失，则分组调度器去除低依赖分组。 分组调度器提供具有从其中去除低依赖分组的输入分组的分组多路复用器。 分组丢失检测单元（203）通过读出输入的可伸缩视频的NALU（网络抽象层单元）来检测每个NAL的分组丢失模式。
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公开(公告)号：KR102233494B1
公开(公告)日：2021-03-26
申请号：KR1020190062448
申请日：2019-05-28
Applicant: 한국항공대학교산학협력단
IPC: H04N13/366 , H04N13/388 , H04N13/279 , H04N13/117 , H04N7/18
Abstract: 360도영상공간에서의다중객체추적장치및 방법에관한것이며, 다중객체추적장치에의한 360도영상공간에서의다중객체추적방법은 (a) 상기 360도영상공간에포함된 360도비디오프레임내에서객체존재후보영역을검출하는단계, (b) 상기 360도비디오프레임으로부터상기객체존재후보영역을포함하는소정의화각의뷰포트프레임을평면뷰포트프레임형태로변환하여추출하는단계, (c) 추출된상기평면뷰포트프레임에대해객체를포함하는객체영역을검출하는단계, (d) 객체영역이검출된경우, 검출된객체영역에대응하는대응영상신호를추출하고, 상기검출된객체영역의위치를상기 360도영상공간에대응하게변환하여변환위치를생성하는단계, (e) 상기대응영상신호및 상기변환위치를기초로상기 360도비디오프레임에서의객체의위치를추적하는단계를포함하고, 상기 (a) 단계에서검출된상기객체존재후보영역이복수개인경우, 상기 (b) 단계내지상기 (e) 단계는복수개의상기객체존재후보영역각각에대하여개별적으로수행될수 있다.
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公开(公告)号：KR102137516B1
公开(公告)日：2020-07-24
申请号：KR1020180145270
申请日：2018-11-22
Applicant: 한국항공대학교산학협력단
IPC: H04N21/8549 , G06K9/00 , G06T7/246
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公开(公告)号：KR102118988B1
公开(公告)日：2020-06-04
申请号：KR1020180145299
申请日：2018-11-22
Applicant: 한국항공대학교산학협력단
IPC: G06K9/00 , H04N21/8549
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Patent Agency Ranking
公开(公告)号：KR1020120126501A
公开(公告)日：2012-11-21
申请号：KR1020110044350
申请日：2011-05-12
Applicant: 한국항공대학교산학협력단
CPC classification number: G06K9/00281 , G06K9/00362 , G06T5/002 , G06T7/194 , H04N13/156 , H04N13/271
Abstract: PURPOSE: A three-dimensional image converting system and a method thereof are provided to reduce the dependency of hardware by converting a user image which is photographed in a two-dimension into a three-dimensional video through shaping modeling. CONSTITUTION: An image obtaining unit(10) photographs a face of a user. An image conversion controlling unit(20) converts an obtained two-dimensional image into a three-dimensional image. A face area extracting unit(30) extracts face area information of the image. A body area extracting unit(40) extracts body area information of the image. A three-dimensional image generating unit(70) generates a three-dimensional image based on the face area of the image. [Reference numerals] (10) Image obtaining unit; (20) Image conversion controlling unit; (30) Face area extracting unit; (40) Body area extracting unit; (50) Depth information generating unit; (60) Vision difference information; (70) 3D image generating unit
Abstract translation: 目的：提供三维图像转换系统及其方法，以通过整形建模将通过二维拍摄的用户图像转换为三维视频来减少硬件的依赖性。 构成：图像获取单元（10）拍摄用户的脸部。 图像转换控制单元（20）将所获得的二维图像转换为三维图像。 脸部区域提取单元（30）提取图像的面部区域信息。 身体区域提取单元（40）提取图像的身体区域信息。 三维图像生成单元（70）基于图像的面部区域生成三维图像。 （附图标记）（10）图像获取单元; （20）图像转换控制单元; （30）面部抽取单元; （40）身体部位提取单位; （50）深度信息生成部; （60）视差差异信息; （70）3D图像生成单元
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公开(公告)号：KR102221792B1
公开(公告)日：2021-03-02
申请号：KR1020190103909
申请日：2019-08-23
Applicant: 한국항공대학교산학협력단 , 타가텍 주식회사
IPC: G06K9/00 , H04N21/845 , G06T5/40 , G06K9/62
Abstract: 동영상컨텐츠의스토리기반의장면추출장치및 방법이개시되며, 본원의일 실시예에따른비디오시퀀스입력에대한스토리기반의장면추출방법은, (a) 입력된비디오시퀀스의인접프레임간 유사도에기초하여하나이상의장면전환프레임을검출하고, 상기하나이상의장면전환프레임을경계로상기비디오시퀀스를복수의샷으로분할하는단계, (b) 상기복수의샷 각각의키 프레임및 속성을결정하는단계, (c) 상기복수의샷 중 2개의샷 사이의유사도를측정하여서로유사하다고판단되면, 서로유사하다고판단되는 2개의샷 중어느하나부터다른하나까지존재하는모든샷들을병합하여병합장면을생성하는단계및 (d) 상기병합장면각각의키 프레임및 속성을결정하는단계를포함할수 있다.
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公开(公告)号：KR101865900B1
公开(公告)日：2018-06-08
申请号：KR1020170052107
申请日：2017-04-24
Applicant: 한국항공대학교산학협력단
Abstract: 무선센서네트워크의클러스터링방법에관한것이며, 무선센서네트워크의클러스터링방법은 (a) 기지국에서, 미리설정된조건에따라클러스터링된클러스터에서상기클러스터내 센서노드의잔여에너지를고려하여클러스터헤드노드를선정하는단계; 및 (b) 상기기지국에서, 기산출된화질에너지제어계수에기반한클러스터멤버노드의동작제어에따라발생된데이터를상기클러스터헤드노드로부터수신하는단계를포함할수 있다.
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公开(公告)号：KR101554541B1
公开(公告)日：2015-09-21
申请号：KR1020130075289
申请日：2013-06-28
Applicant: 한국항공대학교산학협력단
Inventor： 이명진
Abstract: 상술한목적을달성하기위한, 본발명에따른비디오분석정보를활용한전경블록의선택적분산비디오부호화및 복호화방법은부호기가 Key-프레임과 WZ-프레임으로구분되는비디오프레임을수신하는단계; 부호기가수신한비디오프레임을부호화하는단계; 및부호화된상기비디오프레임을복호기가수신하여복호화시키는단계;를포함하여, 내장된또는외부의자동비디오분석모듈이제공한비디오분석정보를기반으로전경블록만을선택적으로부호화하여부호화에따른연산량을낮추고부호화효율을향상시킬수 있는효과가있다.
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