GENERATION OF A DEPTH MAP FOR AN IMAGE

摘要

An apparatus for generating an output depth map for an image comprises a first depth processor (103) which generates a first depth map for the image from an input depth map. A second depth processor (105) generates a second depth map for the image by applying an image property dependent filtering to the input depth map. The image property dependent filtering may specifically be a cross-bilateral filtering of the input depth map. An edge processor (107) determines an edge map for the image and a combiner (109) generates the output depth map for the image by combining the first depth map and the second depth map in response to the edge map. Specifically, the second depth map may be weighted higher around edges than away from edges. The invention may in many embodiments provide a temporally and spatially more stable depth map while reducing degradations and artifacts introduced by the processing.

主权项

1. An apparatus for generating an output depth map for an image, the apparatus comprising:
a first depth processor for generating a first depth map for the image from an input depth map; a second depth processor for generating a second depth map for the image by applying an image property dependent filtering to the input depth map; an edge processor for determining an edge map for the image; and a combiner for generating the output depth map for the image by combining the first depth map and the second depth map in response to the edge map where the combiner is arranged to weigh the second depth map higher in edge regions than in non-edge regions, and edge processor is arranged to determine the edge map in response to an edge detection process performed on the image.