Abstract:
H.264에서 MPEP-2로의 트랜스코딩 방법이 개시된다. 이 H.264에서 MPEP-2로의 트랜스코딩 방법은 선박-육지 간 실시간 통신에서 다양한 콘텐츠를 제공하는 방송국 및 콘텐츠 제공자는 위성 통신을 통하여 H.264 표준으로 압축한 동영상을 실시간으로 MPEG-2표준 디바이스를 사용 중인 선박에 원활한 서비스를 제공할 수 있게 된다.
Abstract:
PURPOSE: A wireless indoor location measuring method based on KNN(k-nearest Neighbor) and PCM(Possibilistic C-Mean) is provided to form a wireless fingerprint type database by measuring a signal to noise ratio from several APs. CONSTITUTION: The first electric wave feature data is stored in a database with a wireless fingerprint type(S110). k reference points are selected by using KNN(S120). A group of the first electric wave feature data of the k reference points is formed(S130). A group of a location coordinate of the k reference points is formed(S140). A group including the reference points included in the first electric wave feature data based group and the reference point location coordinate based group is formed(S150). A group with the minimum distance square value of a group central vector and the first electric wave feature data is selected(S160). The average of the location coordinate of the reference points belonging to the selected group is produced. The location of a terminal is estimated(S170).
Abstract:
PURPOSE: A system for controlling a ship steering gear is provided to reduce the burden of an operator by estimating an operation behavior using brain waves of the operator and controlling a ship steering gear according to the estimated result. CONSTITUTION: A brain wave measuring unit(110) measures brain waves of an operator. A brain wave analyzer(120) grasps the movement of the operator by analyzing the measured brain waves. A database(130) includes SVM algorithm. A ship steering control unit(140) controls a ship according to the movement of the operator.
Abstract:
PURPOSE: A PFCM(Possibilistic Fuzzy C-Means) and KNN(K-Nearest Neighbor) grouping based mixed wireless indoor positioning method is provided to measure a signal noise ratio received from a plurality of access points, thereby building a wireless fingerprint type database. CONSTITUTION: A database is built with first propagation characteristic value data in a wireless fingerprint mode(S110). A standard point is searched using a KNN(K-Nearest Neighbor)/PFCM(Possibilistic Fuzzy C-Means) mixed technique. k standard points are selected using a KNN technique(S120). A group of the first propagation characteristic value data of the k standard points is formed(S130). A group which has a minimum distance square sum with respect to the first propagation characteristic value data is selected(S140). An average of standard point position coordinates belonged to the selected group is calculated. The location of a terminal is estimated(S150).
Abstract:
PURPOSE: A transcoding method from H.264 to MPEG2 is provided to offer a plurality of video content and video data transmitted in real time from a broadcasting station to a ship by satellite communication. CONSTITUTION: A decoder(100) decodes an input bit stream encoded by a specific standard format. The specific standard format includes H264/AVC(Advanced Video Coding). An encoder(200) encodes the output of a loop filter(140) of the decoder. The encoder generates an output bit stream of a specific standard format such as MPEG2 standard format. A motion vector is detected by using a motion vector of a variable block.
Abstract:
본 발명은 베이지안 알고리즘을 이용한 실내 측위 방법에 관한 것으로서, 본 발명에 따른 복수의 엑세스 포인트(AP : Access Point)가 설치된 무선환경에서 베이지안 알고리즘을 이용한 실내 측위 방법은 위치 설정된 레퍼런스 포인트(RP : Reference Point)로부터 수집된 신호 강도(RSS) 데이터를 핑거프린트(FingerPrint) 방식으로 데이터베이스화하는 단계, 그리고 베이지안 학습의 사후 확률 분포를 이용한 NBC(Naive Bayesian Classifier)와 퍼지 군집화의 유사도 행렬을 사용하여 무선랜 실내 위치를 추정하고 결정하는 단계를 포함한다.
Abstract:
PURPOSE: A wireless indoor location measuring method based on a PFCM group using KNN and GG method is provided to estimate a location of a terminal by using an existing AP(Access Point). CONSTITUTION: The first electric wave feature data is stored in a database with a wireless fingerprint method(S110). K reference points are selected by using a KNN method(S120). The k reference points have a first electric wave feature value near a second electric wave feature value. A group of the first electric wave feature data of the k reference points is formed by using a GG method(S130). A group of a minimum distance between a group central vector and the first electric wave feature data is selected(S140). An average of a location coordinate of the reference points belong to the group is produced. A location of a terminal is estimated(S150).
Abstract:
PURPOSE: A wireless indoor location measuring method based on a FCM(Fuzzy C-Mean) group using KNN(k-Nearest Neighbor) and a GK(Gustafson-Kessel) method is provided to improve database searching efficiency. CONSTITUTION: The first electric wave feature data is stored in a database with a wireless fingerprint method(S110). K reference points are selected by using a KNN method(S120). A group of the first electric wave feature data of the k reference points is formed by using an FCM method(S130). A group with the minimum GK distance the first electric wave feature data and the group central vector is selected(S140). The average of the location coordinate of the reference points belonging to the group is produced. The location of the terminal is estimated(S150).
Abstract:
PURPOSE: A PFCM(Possibilistic Fuzzy C-Means) grouping based mixed wireless indoor positioning method which uses KNN(K-Nearest Neighbor) and GK(Gustafson-Kessel) methods is provided to measure a signal noise ratio received from a plurality of access points in a training step, thereby building a wireless fingerprint type database. CONSTITUTION: A database is built with first propagation characteristic value data in a wireless fingerprint mode(S110). A standard point is searched using a PFCM(Possibilistic Fuzzy C-Means) mixed technique. k standard points are selected using a KNN(K-Nearest Neighbor) technique(S120). A group of the first propagation characteristic value data of the k standard points is formed(S130). A group which has a minimum GK(Gustafson-Kessel) distance with respect to the first propagation characteristic value data and a group center vector are selected(S140). The average of standard point position coordinates belonged to the selected group is calculated. The position of a terminal is estimated(S150).
Abstract:
본 발명은 사례기반추론을 이용한 상황인식기반 적조 예측 시스템에 대하여 개시한다. 본 발명의 일면에 따른 적조 예측 시스템은, 과거에 발생한 적조의 과거 사례들의 데이터를 저장하는 데이터베이스; 감지지역에 대해 감지된 현 사례의 데이터를 입력받는 입력부; 상기 과거 사례들의 데이터와 상기 현 사례의 데이터와의 유사도를 측정하여 유사도가 상대적으로 높은 사례를 선별하는 추론부; 상기 유사도가 상대적으로 높은 과거 사례의 데이터와 상기 현 사례의 데이터를 연관시켜 표시하거나, 상기 감지지역에 대한 적조의 발생 여부를 표시하는 표시부를 포함하는 것을 특징으로 한다.