| 摘要 |
A method of processing an input image representing at least a part-spherical panoramic view with respect to a primary image viewpoint comprises mapping regions of the input image to regions of a planar image according to a mapping 500 which varies according to latitude relative to a horizontal reference in the input image plane. The mapping is such that ratio of the number of pixels in an image region in the input image to the number of pixels in the corresponding region in the planar image, generally increases with increasing latitude. In addition, the planar image could be divided into vertical portions (790) which are then allocated to different sub-images (770). Independent claims are also included for the reverse process (decoding) of the mapping disclosed above. The method could find application in the transmission of data for head-mounted displays, HMD (820). |
