Abstract:
본 발명은, 영상에 포함된 표의 구조를 인식하여 생성하는 방법을 제안한다. 본 발명은, 영상을 구성하는 연결 요소 중 표를 구성하는 선을 추출하고, 선에 매칭되는 함수의 교차점을 이용하여, 선들의 교차점을 결정하고, 선들의 교차점에 대응하여, 교차점의 형태로 구별되는 복수의 교차점 모델들 중 하나를 결정하고, 결정된 교차점 모델을 이용하여 결정된 적어도 하나의 셀을 포함하는, 표에 관한 데이터를 생성하는 방법을 제안한다.
Abstract:
이산 여현 변환(DCT, Discrete Cosine Transform)을 이용하여 입력 영상을 임의의 리사이징 비율로 용이하게 업스케일링 및 다운스케일링하기 위한 방법 및 장치가 개시된다. 본 발명에 따른 리사이징 방법은 입력 영상의 DCT(Discrete Cosine Transform) 계수를 수신하는 단계, 리사이징 비율에 근사한 비율로 입력 영상을 변환하기 위한 변환 행렬(transformation matrix)을 결정하는 변환 행렬 결정 단계, 변환 행렬을 이용하여 입력 영상을 DCT 영역에서 근사 리사이징(coarse resizing)하는 근사 리사이징 단계, 근사 리사이징된 영역에 IDCT(Inverse Discrete Cosine Transform)를 수행하여 공간 영상을 획득하는 IDCT 단계, 및 공간 영역에서 공간 영상에 정밀 리사이징(fine resizing)을 수행하여 출력 영상을 형성하는 정밀 리사이징 단계를 포함한다. 본 발명에 의하면, 입력 영상을 임의의 리사이징 비율로 용이하게 리사이징할 수 있을 뿐만 아니라, 입력 영상의 가로 및 세로를 서로 상이한 리사이징 비율로 리사이징할 수도 있다.
Abstract:
An apparatus and a method for transforming and encoding MPEG-2(Moving Picture Experts Group-2) data into H.264 data are provided to combine an integer transform process in H.264 coding with an IDCT(Inverse Discrete Cosine Transform) process in MPEG-2 coding and transform and encode the MPEG-2 data into the H.264 data by approximating an integer transform matrix in the H.264 coding to a DCT matrix. A scaling inverse quantization unit(210) inversely quantizes MPEG-2 data, and generates a DCT coefficient. A coefficient transform unit(230) approximates an 4Î4 H.264 integer transform matrix to a 4Î4 DCT matrix, and transforms the DCT coefficient into an integer transform coefficient by using the approximated 4Î4 DCT matrix. A scaling quantization unit(250) quantizes the integer transform coefficient, and generates H.264 data.
Abstract:
PURPOSE: An apparatus and a method for performing inverse telecine process are provided to recover a film frame equal to the original film frame from a telecine image with a small calculation amount and high accuracy regardless of noise by testing only the size of π frequency. CONSTITUTION: An apparatus for performing inverse telecine process(200) includes a frequency component extracting portion(220) obtaining the size of π frequency component for each video frame input for M frame unit(M is a natural number) per second, a normalizing portion(230) normalizing the size of the π frequency component output from the frequency component extracting portion and outputting a size row of the π frequency component normalized per five frames, a comparator(250) comparing a standard templet with the size row of the π frequency component and outputting the compared result, and a frame buffer controlling the number of the video frames input for the M frame unit per second and the original film frames recovered from the input video frames and output for N frame unit (N is a natural number) per second, in response to the compared result output from the comparator.
Abstract:
PURPOSE: An accompaniment/voice separating device using an independently interpreting algorithm in the secondary omnidirectional network and a method thereof are provided to use an independently interpreting algorithm for estimating a mixing process of signals with regards to acoustic signals where accompaniment signals are mixed with voice signals, thereby separating the voice signals from the accompaniment signals within the shortest time. CONSTITUTION: An independent interpreter(110) receives output signals consisting of accompaniment signals and voice signals, and outputs the first, second, third, and fourth multiplication coefficients. An accompaniment signal selector(120) outputs a multiplex control signal having the first logical state by corresponding to the second logical state of the most significant bit of the second multiplication coefficients, and having the second logical state by corresponding to the second logical state of the most significant bit of the third multiplication coefficients. A filtering unit(130) generates the first output signal among output signals which add up two signals for processing R and L channel signals with the first and third multiplication coefficients, and generates the second output signal among output signals which add two signals for processing with the second and fourth coefficients. A multiplexer(140) selectively outputs the first or the second output signal.
Abstract:
A line based image matching method in which a model image indexed by similar shape descriptors to a query image is retrieved from an image database indexed by line based shape descriptors. The line based image matching method involves: collecting line information of a query image and model images; defining the binary relation between the lines of the query image and the lines of the model images; measuring the compatibility coefficients of the node-label pairs of the query and model images based on the binary relation; and measuring the similarity between the query and model images on the basis of continuous relaxation labeling using the compatibility coefficient.
Abstract:
본발명은, 비디오영상에서사람과배경을분리하기위한방법에있어서, 제1 프레임에서의사람영역과배경영역을추정하는단계; 상기추정된사람영역과배경영역각각에대한가우시안혼합모델을생성하는단계; 상기사람영역에대한가우시안혼합모델과상기배경영역에대한가우시안혼합모델을합쳐전체영상에대한가우시안모델을생성하고, 제2 프레임의정보를이용하여상기전체영상에대한가우시안혼합모델을갱신하는제1 갱신단계; 상기갱신된전체영상에대한가우시안혼합모델을이용하여에너지함수생성하고, 생성된에너지함수의최소화를통해상기제2 프레임의사람영역을분리하는단계; 를포함할수 있다.