公开(公告)号：US11943419B2

公开(公告)日：2024-03-26

申请号：US17479911

申请日：2021-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Benjamin Busam ,  Matthieu Hog ,  Steven George McDonagh ,  Gregory Slabaugh

IPC: G06T7/593 ,  G06N20/00 ,  H04N13/128 ,  H04N13/00

CPC classification number: H04N13/128 ,  G06N20/00 ,  G06T7/593 ,  G06T2207/10028 ,  H04N2013/0081

Abstract: An image processing device comprising a processor configured to generate a refocused image from an input image and an map indicating depth information for the image, by the steps of: for each of a plurality of planes associated with respective depths within the image: generating a depth mask having values indicating whether regions of the input image are within a specified range of the plane, wherein an assessment of whether a region is within the specified range of the plane is made through the evaluation of a differentiable function of the range between regions of the input image and the plane as determined from the map; generating a masked image from the input image and the generated depth mask; refocusing the masked image using a blurring kernel to generate a refocused partial image; and generating the refocussed image from the plurality of refocussed partial images.

公开(公告)号：US12125223B2

公开(公告)日：2024-10-22

申请号：US17586034

申请日：2022-01-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Benjamin Busam ,  Patrick Ruhkamp ,  Matthieu Hog ,  Yannick Verdie ,  Ales Leonardis ,  Gregory Slabaugh

IPC: G06T7/514

CPC classification number: G06T7/514 ,  G06T2207/10024 ,  G06T2207/20081

Abstract: An image processing system configured to receive an input time-of-flight depth map representing the distance of objects in an image from a camera at a plurality of locations of pixels in the respective image, and in dependence on that map to generate an improved time-of-flight depth map for the image, the input time-of-flight depth map having been generated from at least one correlation image representing the overlap between emitted and reflected light signals at the plurality of locations of pixels at a given phase shift, the system being configured to generate the improved time-of-flight depth map from the input time-of-flight depth map in dependence on a colour representation of the respective image and at least one correlation image.