Patent ID: 11212507

Abstract:
A method for transmitting an image according to the present disclosure comprises the steps of: acquiring three-dimensional stereoscopic images; creating a color equirectangular projection (ERP) image and a depth ERP image from the three-dimensional stereoscopic images; and transmitting the color ERP image and the depth ERP image. Pixels of the color ERP image correspond to pixels of the depth ERP image, the pixels of the color ERP image comprise color information, and the pixels of the depth ERP image comprise depth information of corresponding pixels of the color ERP image. The step of creating the color ERP image and the depth ERP image from the three-dimensional stereoscopic images may comprise the steps of: forming a concentric sphere having a specific point on three-dimensional coordinates as a center point; mapping points of the three-dimensional stereoscopic images to the surface of the concentric sphere; generating the color ERP image on the basis of color information of the mapped points; and generating the depth ERP image on the basis of depth information of the mapped points. The three-dimensional stereoscopic images may include three-dimensional position information of the points and color information of the points.