Abstract:
PURPOSE: A method for encoding partitioned block in a video encoding and decoding is provided to use an encoding unit block and a lower dividing block in a screen and prediction between screens. CONSTITUTION: An intra and inter prediction is performed about a lower block mode in an encoding unit block(S110). If the prediction between screens is performed, an intra and inter encoding is performed within the screen(S111). If not, only the inter prediction encoding is performed(S112). A prediction encoding result and an RD(Rate Distortion) cost value are stored(S113). If the lower block mode is the final block mode, the corresponding encoding result is finally selected(S114,S115).
Abstract:
본 발명은 비디오 부호화에서 분할 블록 부호화 방법 및 비디오 복호화에서 분할 블록 복호화 방법에 관한 것으로서, 입력화면을 부호화 단위 블록으로 분할하고, 상기 부호화 단위 블록을 하위 블록으로 분할하고, 상기 하위 블록을 화면내 예측 부호화 또는 화면간 예측 부호화 중에서 하나 이상을 선택적으로 사용하여 부호화한다. 또한 상기 부호화 방법의 역과정을 통해 복호화 과정을 수행할 수 있다. 본 발명은 비디오 부호화에서 부호화 단위 블록 화소값을 부호화함에 있어서, 부호화 모드 선택의 유연성이 증대되어 부호화 효율이 증가 되는 효과가 있다.
Abstract:
PURPOSE: A method for encoding a partitioned block in encoding video, a method for decoding a partitioned block in decoding video, and a recording medium realizing the same are provided to increase flexibility of selecting an encoding mode, thereby increasing encoding efficiency. CONSTITUTION: An encoding unit block is partitioned into a lower block(S107). The order of lower block modes is initialized(S108). One block mode is selected among the lower block modes(S109). It is checked whether to perform intra and inter prediction for the lower block mode encoded in the encoding unit block(S110). A prediction encoding result and a rate distortion cost are saved(S113).
Abstract:
PURPOSE: A method for preparing a query using a materialized view and a dimension layer in a data warehouse is provided to enhance a performance of a data warehouse system by returning the same result as a query created by a user and automatically creating new query capable of being processed more effectively using many materialized views for being processed by replacing the original query. CONSTITUTION: In a preparation method of a query created by a user using new query through a dimension layer and many materialized views existed in a data warehouse at a data warehouse system storing large amount of data, a normalized form is defined with respect to the query and the materialized views using a group grid being induced from the dimension layers(S100). It is checked whether each materialized view is used in the preparation of the query(S110). Materialized views are selected to be used in the preparation of the query(S120). A query block is created with respect to each selected materialized view(S130). New query is created by integrating the created query blocks(S170).