Abstract:
PURPOSE: A device and a method for partly transmitting images on the network are provided to transmit only data necessary for display in a client, without transmitting all image data, so as to secure QoS(Quality of Service). CONSTITUTION: In a server(20), an image database(24) stores a partly accessible image file. An offset and part access information database(23) stores information necessary for generating a part area image file. A server communication processor(21) receives a request of the part area image file from a client(10) and transmits the requested part area image file to the client. A JPEG(Joint Photographic Experts Group) part access processor(22) extracts corresponding offset and part access information from the offset and part access information database to access the corresponding file stored in the image database(24) and generate a part area image, and delivers the generated part area image to the server communication processor. In the client, a scroll controller(12) interprets scroll information inputted by a user to control a command of displaying a new area. A display controller(11) requests the part area image to display the new area, and controls the part area image of the new area to be displayed. A client communication processor(14) transmits the part area image request from the display controller to the server communication processor, and receives the part area image from the server communication processor. And a JPEG decoder(13) decodes the part area image from the client communication processor to deliver the decoded part area image to the display controller.
Abstract:
본 발명은 네트워크상에서의 고해상도 대용량 제이펙(JPEG : Joint Photographic Experts Group) 영상을 부분 전송할 수 있는 영상 부분 전송 장치 및 그 방법과 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것으로, 네트워크상에서 영상 데이터를 전송함에 있어서, 영상 데이터 전부를 전송하지 않고 클라이언트에서 디스플레이에 필요한 데이터만을 보내, QoS(Quality of Service)를 보장하기 위하여, 서버에서 영상을 DB에 등록할 때 이 영상 파일을 부분영역 억세스가 가능한 영상 파일로 변환하여 저장하고, 이 과정에서 부분영역 영상을 생성하는데 필요한 정보(오프셋 및 부분영역 억세스 정보)를 생성하는 제 1 단계; 클라이언트로부터의 부분영역 영상 요청시에, 상기 서버가 상기 오프셋 및 부분영역 억세스 정보를 바탕으로 저장된 해당 영상 파일을 억세스하여 요청된 부분영역 영상을 생성하는 제 2 단계; 및 생성된 상기 부분영역 영상을 상기 클라이언트로 전송하는 제 3 단계를 포함한다.
Abstract:
PURPOSE: A system for extracting a face color area using edge and color information, and a method thereof are provided to improve the accuracy of face authentication by preventing a face area from merging with a background area. CONSTITUTION: A color area dividing unit(10) detects edge information from an input color image and divides areas from an entire image by the edge information. An isolated area forming unit(11) makes a background area and a face area binary for forming each isolated area. A skin color area selecting unit(12) extracts the isolated area adjacent to a center position of an image in the isolated areas for selecting an area satisfying conditions of mean gray level, size information, and color distribution as a representative face candidate area. An image merging unit(13) extracts the areas satisfying the conditions of the color and position information from the adjacent isolated areas based on the mean color distribution and position information of the selected representative face candidate area for merging images, so that the image merging unit extracts a face color area.
Abstract:
PURPOSE: An apparatus for separating text region using geographic text characteristics information and a method therefor are provided to detect characteristic points of texts and collect the detected points. CONSTITUTION: An apparatus for separating text region using geographic text characteristics information includes a geographic text characteristics separator/candidate region separator(110) and a candidate region prover(120). The geographic text characteristics separator/candidate region separator(110) detects the geographic characteristics of text of an input image from outside and defines the candidate region. The candidate region prover(120) increases the size of the candidate region in the geographic text characteristics separator/candidate region separator(110) proves whether the region is a real text region.
Abstract:
PURPOSE: A method for detecting eyes from a face image by an optimum binary threshold search is provided to increase the adaptability of an input gray level face image to an illuminating state and maximize the performance of eye detection. CONSTITUTION: A gray level face image is inputted to a computer(S100). A threshold is generated according to a threshold search direction for making the input gray level face image binary(S200). An eye pair is detected from the black and white face image(S300). If eye pair information is output, the eye pair is finally output as eyes detected from the input gray level face image(S500). If the eye pair detection fails, the threshold search direction is decided to execute threshold generation and binary process again(S400).
Abstract:
PURPOSE: A method of tracking a moving object using three basic points is provided to track a moving object in real time using three basic points and sixteen characteristic vectors extracted with respect to the basic points. CONSTITUTION: The positions of three basic points are determined with respect to an initial image inputted from a camera(S120). Sixteen characteristic values are detected and stored using the determined three basic points(S130). A candidate region for a new image inputted after the initial image is determined(S220). Sixteen characteristic values are detected from the determined candidate region(S230), and the positions of three points corresponding to the three basic points are decided through the detected sixteen characteristic values and a similarity measurement value(S240). The three corresponding points and basic points are transformed through Affine transform to track a moving object(S250).
Abstract:
본 발명은 방향 윤곽선 지도를 이용한 영상 검색 방법에 관한 것으로, 디지털화되어 있는 정지영상 및 동영상을 읽어들이는 영상 입력 과정과, 입력된 영상의 수평 및 수직 방향 윤곽선을 구하고, 이를 이용하여 방향 성분을 포함하는 윤곽선 정보인 방향 윤곽선 지도를 작성하는 특징 추출 과정과, 작성된 방향 윤곽선 지도를 저장하기 위한 저장 과정과, 방향 윤곽선 지도간의 차분을 구하여 유사성을 평가한 후 원하는 데이터를 검색하는 검색 과정을 통하여 이루어지며, 영상 내에 포함된 물체에 대한 근사적인 표현이 포함되므로써, 보다 의도에 가까운 영상 검색이 가능하여 영상 데이터베이스 검색의 질을 향상시킬 수 있는 방향 윤곽선 지도를 이용한 영상 검색 방법이 개시된다.