Abstract:
PURPOSE: An anisotropy spreading method based on the directionality of an edge obtaining the image of the high quality and an apparatus thereof are provided to preserve the edge indicating the feature of an image and remove the noise. CONSTITUTION: A comparison unit(140) compares a predetermined threshold value and calculated strength value. If the intensity is greater than the critical value, an edge maintaining unit(150) presently decides the current pixel of the image. A noise removing unit(160) decides the intensity pixel of image with the domain which is not edge.
Abstract:
리소스들로 이루어진 다중 복호기를 갖는 다중 복호기 시스템에서의 상기 리소스들을 제어하는 리소스 공유 스케줄 장치는, 상기 리소스들의 상태 정보 및 상기 리소스들의 공유 스케줄 제어에 필요한 정보들을 저장하는 저장부; 및 임의의 소스 리소스에서 타겟 리소스 할당을 요청하면, 상기 타겟 리소스를 할당하여 상기 소스 리소스에 상기 타겟 리소스의 정보를 출력하고, 상기 리소스들의 상태를 갱신하는 제어기를 포함하여 상기 다중 복호기 간의 리소스를 공유하기 위해 상기 리소스들과 양방향으로 연결되어 리소스 공유 스케줄을 제어함으로써 전체적인 복호 시간을 단축할 수 있고, 리소스 사용 스케줄을 최적화할 수 있다. NoC(Network on Chip), 다중 복호기, 리소스(또는 모듈), 리소스 공유 스케줄 제어 장치, 소스 리소스, 타겟 리소스, 리소스 상태, 예약 상태.
Abstract:
A multiple map task intermediate result queue, a combined device and a method thereof in a distributed parallel processing system removing a duplicate key existing in a whole destination file are provided to reduce task processing load, the number of task output file and total size of an output file transmitted in the distributed parallel processing system. A map task performing unit generates an intermediate result by performing the allocated map task. A reduce task performance removes task transmission schedule information on a transmission schedule intermediate result list(S512). The reduce task performance sets up intermediate result path information about a residual task identifier(S522).
Abstract:
A large capacity high dimensional data indexing device supporting high-expandability in a cluster environment and a method thereof are provided to filter content-based search about high dimensional data first by using a spill tree and perform parallel search by using a signature in each node, thereby supporting rapid performance. A spill tree generation unit(210) generates a spill tree by extracting a sample of an N-dimensional feature vector. A feature vector divided storage unit(220) dividedly stores the N-dimensional feature vector in a terminal node of the spill tree. A local signature generation unit generates a signature locally about the N-dimensional feature vector distributed into each node of the spill tree.
Abstract:
A method of storing data in a memory page for a key value data model is provided to store data divided by a key value unit in a page inside a main page, thereby largely reducing cache miss. In page header information, an address of a low key page is searched(S301). A low key is searched from the low key page by using an offset table of a page(S302). When a key page of a corresponding column exists, a key page address of the corresponding column is obtained. An address of a value page is obtained based on the low key data(S305). Searching query data is performed by searching the value data(S306).
Abstract:
본 발명은 통합 XQuery 질의 처리 방법에 관한 것이다. 본 발명은, 관계형 데이터베이스의 영속 XML 데이터를 질의 대상으로 하는 XML 경로 표현식의 처리 과정에서, 중간 결과로서 관계형 데이터베이스로부터 질의 처리에 필요한 영속 노드만을 가져 와서 메모리에 적재하는 제 1 단계; XQuery 생성자의 처리 과정에서, 중간 결과로서 새로운 생성 노드를 메모리에 구성하는 제 2 단계; XQuery 생성자의 내부에서 관계형 데이터베이스의 영속 노드를 나타내는 XML 경로 표현식이 사용되는 경우, 상기 관계형 데이터베이스로부터 가져온 영속 노드를 상기 XQuery 생성자로부터 생성된 생성 노드에 연결하여 통합 XQuery 결과의 전체 트리를 구성하는 제 3 단계; 및 상기 통합 XQuery 결과를 중간 결과로서 활용하여 계속적인 XML 경로 표현식 질의를 처리하는 제 4 단계를 포함하는 통합 XQuery 질의 처리 방법을 제공한다. XML, 관계형 데이터베이스, 통합 XQuery, 영속 노드, 생성 노드, 경로 표현식
Abstract:
A device and a method for processing continuous queries sharing a result of the queries for an XML(extensible Markup Language) data stream are provided to improve continuous query processing performance with reduction of repeated operation by sharing the result for common operation shared among the continuous queries. A syntax analyzer(520) checks a syntax error by receiving continuous queries registered from an external application/user(510), checks a semantic error of a syntax analysis result received from the syntax analyzer, and transfers a semantic analysis result. A semantic analyzer(530) checks a semantic error of the syntax analysis result received from the syntax analyzer and transfers the semantic analysis result. A sharable operation extractor(540) extracts operations sharable among a plurality of continuous queries and stores a result of the extracted sharable operation separately. A query executor(550) executes the continuous query for an XML data stream by using a sharable operation result while rounding the semantic analysis result and outputs the result to the outside.
Abstract:
A system and a method of schema-based static analysis for XQuery evaluation are provided to process reference of an XML schema definition promptly by allocatingg an index to the XML schema and maintaining the index in a memory. An XQuery parser(104) analyzes grammatical errors of the XQuery query by accepting an XQuery query input. The XQuery parser outputs an XQuery pass tree(106) if the errors do not exist. An XML(eXtensible Markup Language) schema parser(110) accepts XML schema definitions as input, performs a grammatical test, and outputs an accessible schema graph for the scheme definition which has no errors. A schema-based query static test engine(114) performs a static test to the XQuery parse tree by using the schema graph inputted from the XML schema parser.
Abstract:
An apparatus for controlling an intra mode decoding output, a method therefor, and an intra mode decoding system using the same are provided to enhance transmission efficiency by removing redundant data in case of a prediction mode in which data redundancy exists in an intra prediction result for a decoding unit region according to a characteristic of an intra prediction mode. An input unit(111) receives a prediction result from an intra mode decoder. An output control unit(112) outputs a corresponding prediction result inputted through the input unit per decoding unit region to the outside. The output control unit removes data redundancy on the basis of a corresponding intra prediction characteristic, and outputs the corresponding prediction result.
Abstract:
A system and a method for processing heterogeneous sensor data streams using an XML(eXtensible Markup Language) common model are provided to convert different types of streams received from heterogeneous sensors into an integrated XML common stream following a fixed schema by enabling a user to fix the schema to each sensor linked with the system, and conduct a data process such as filtering or extraction using an XML query for a converted XML data stream. A sensor linker(210) links with heterogeneous sensors. A schema manager(220) manages schema information for a sensor data stream received from the heterogeneous sensors. A stream query processor(230) processes a user query for the sensor data stream. The sensor linker comprises communication adapters(212) performing communication/commanding with heterogeneous sensors and message converters(214) converting the sensor data stream into an XML sensor data stream according to the schema information defined in the schema manager. The heterogeneous sensors include more than one of Alien RFID(Radio Frequency IDentification) readers(202), a temperature sensor(204), a vibration sensor, and a pressure sensor.