Abstract:
The present invention relates to an inter-layer prediction method of an image comprised of a plurality of layers including at least one temporal sub-layer. The inter-layer prediction method includes the steps of: acquiring information about a temporal sub-layer for inter-layer prediction; inducing a reference picture used for inter-layer prediction of a current picture on the basis of the information about the temporal sub-layer; and performing inter-layer prediction of the current picture on the basis of the reference picture.
Abstract:
According to an embodiment of the present invention, the video decoding method comprises the following steps: a step of determining the type of a filter determining the type of a filter applied to a first layer picture which a second layer picture, which is subjected to be decoded, refers to; a step of determining a subject of application for determining a subject of application in which the filter is applied in the first layer picture; a step of filtering a filtering subjected object based on the determined type of filter; and a step of adding the filtered first layer picture in a list of the second layer reference pictures. By this, the video decoding method and the device using the same is capable of reducing prediction errors in the upper layer and improving the decoding efficiency.
Abstract:
본 발명은 다 계층 구조의 영상 부호화 및 복호화에 관한 기술로, 상위 계층을 부, 복호화 함에 있어 하위 계층의 정보를 이용하여 예측하고 부, 복호화 하는 방법에 관한 기술이다. 보다 상세하게, 하위 계층의 영상 샘플 값 및 움직임 정보들을 복호화하여 상위 계층의 영상 크기로 매핑을 수행한 후 상위 계층의 참조 픽처 리스트에 추가를 하여 현재 부, 복호화 대상 블록의 참조 픽처로 사용하여 부호화 효율을 향상시키는 이점이 있다.
Abstract:
The present invention relates to a method and a device for adjusting adaptive image focus according to three-dimensional (3D) disparity information. An image processing module to adaptively adjust focus of a binocular 3D image comprises: a disparity calculating unit to calculate disparities of a left image and a right image which are included in the binocular 3D image; a focus calculating unit to calculate focus based on at least either the left image or the right image; and a picture quality adjusting unit to adaptively correct the focus of the binocular 3D image based on the calculated disparities and a difference in a coefficient of the calculated focus. According to the present invention, the method and the device can reduce inconsistency in the focus and a 3D effect in the binocular 3D image, thereby providing a 3D image of a better quality.
Abstract:
The present invention relates to a scalability information expression method in a hierarchical video encoding and, more specifically, to a technique enabling an adaptive video transmission and consumption by describing extraction/scalability information in a video bitstream.
Abstract:
A method for decoding an image, which supports a plurality of layers, includes the steps of: receiving and parsing layer-dependent information on a reference layer, which a current layer refers to in an entire bit-stream; when an inter-layer prediction is used for decoding a current picture in the current layer, receiving and parsing layer information on a reference layer which the current picture refers to in the reference layer; and decoding the current picture based on the layer information.