首页>
外国专利>
METHOD AND APPARATUS FOR REDUCTION OF ARTIFACTS AT DISCONTINUOUS BOUNDARIES IN CODED VIRTUAL-REALITY IMAGES
METHOD AND APPARATUS FOR REDUCTION OF ARTIFACTS AT DISCONTINUOUS BOUNDARIES IN CODED VIRTUAL-REALITY IMAGES
展开▼
机译:在编码虚拟现实图像中的不连续边界处减少伪像的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods and apparatus of processing 360-degree virtual reality images are disclosed. According to one method, a 2D (two-dimensional) frame is divided into multiple blocks. The multiple blocks are encoded or decoded using quantization parameters by restricting a delta quantization parameter to be within a threshold for any two blocks corresponding to two neighboring blocks on a 3D sphere. According to another embodiment, one or more guard bands are added to one or more edges that are discontinuous in the 2D frame but continuous in the 3D sphere. Fade-out process is applied to said one or more guard bands to generate one or more faded guard bands. At the decoder side, the reconstructed 2D frame is generated from the decoded extended 2D frame by cropping said one or more decoded faded guard bands or by blending said one or more decoded faded guard bands and reconstructed duplicated areas.
展开▼