Abstract:
본 발명은 영상 프레임간 평균절대차(mean absolute difference, MAD)의 차분치(difference of MAD, dMAD)를 이용한 장면전환 검출기 및 그 운용 방법에 관한 것으로, 프레임 메모리(1), 제1절대차 계산수단(32), 누적수단(33), 곱셈수단(34), 제1래치수단(36), 제2절대차 계산수단(35), 제1비교수단(37), 제2비교수단(38), 선택수단(39), 및 제2래치수단(40)을 구비하는 영상프레임간 평균절대차의 차분치를 이용한 장면전환 검출기에 적용되는 장면 전환 검출 방법에 있어서, 입력되는 n번째 영상 프레임의 평균 절대차를 계산하여 바로 이전 프레임의 장면전환 상태(scene change(n-1))에 따라 현재 프레임에서 사용할 장면전환 판정 변수가 '1'인가를 조사하는 제1단계(41,42), 상기 제1단계(41,42) 수행 후, 장면전환 변수값이 '1'이면 현재 프레임이 새로운 장면의 두번째 프레임에 해당하므로 균 절대차만을 이용하여 장면 전환 판정을 하는 제2단계(43), 상기 제1단계(41,42)수행 후, 장면전환 변수값이 '1'이 아니면 평균 절대차의 차분치를 장면전환 변수로 사용하여 장면 전환 판정을 하는 제3단계(44), 및 상기 제2단계 및 제3단계 수행 후, n번째 프레임의 장면전환 상태 및 평균 절대차를 기록해 두었다가 n+1번째 프레임을 처리할 때 이용하도록 하고 종료하는 제4단계(45)로 이루어지는 것을 특징으로 한다.
Abstract:
A system for offering a distributed profile service and a method applying the same are provided to integrally manage profile databases installed to each service provider server by using location information of the profile databases. A profile location database(310) stores the location information of each profile database installed to each service provider server(200). An interface(320) performs a connection and authentication procedure by managing communication with the first service provider server. A profile manager(330) receives profile request information from the first service provider server through the Internet, searches the location information of a corresponding profile from the profile location database, and receives the profile from the second service provider server corresponding to the searched location information. A transformation manager(340) transforms the profile received from the profile manager into a format of the first service provider server and transmits the converted profile to the first service provider server.
Abstract:
A system for offering a subscriber management type profile service and a service registering/offering method using the same are provided to integrally manage a user profile independent of a service provider server by registering and storing the user profit, and convert the user profile into a proper format and offer the converted user profile when the service provider server requests the user profile. A profile database(310) stores the user profiles. A registration manager(320) registers service registration of the user(100) and updates registration information. The first profile manager(340) analyzes profile request information received from the service provider server(200) corresponding to a service requested from the user and provides the corresponding profile to the service provider server. The second profile manager(350) makes the profile with the registration information and the updated registration information received from the registration manager, stores the profile to the profile database, extracts the profile from the profile database based on an analysis result of the first profile manager, and transfers the extracted profile to the first profile manager.
Abstract:
The detector comprises the first absolute calculating means(32), an accumulating means(33), a production means(34), the first latch means(36), the second absolute difference means(35), the first comparing means(37), the second comparing means(38), a selecting means(39), and the second latch means(40). The method includes the steps of; investigating scene change variable, determinating scene change using average absolute difference, determinating scene change using difference of MAD and ending.