公开(公告)号：US20230281862A1

公开(公告)日：2023-09-07

申请号：US18315325

申请日：2023-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Onay Urfalioglu ,  Akhil Gurram ,  Ibrahim Halfaoui

IPC: G06T7/70 ,  G06T7/55

CPC classification number: G06T7/70 ,  G06T7/55 ,  G06T2207/30244 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A method estimates a camera pose change estimation. The method includes capturing a first image of a scene with a first camera, obtaining a depth map with respect to the first camera based on the first image, capturing a second image of the scene with a second camera. The method also includes obtaining a pose change from the first camera pose to the second camera pose based on the first image and the second image, generating a set of additional pose changes based on the pose change, obtaining a set of reconstructed images and, matching each reconstructed image of the set of reconstructed images with the second image. The method selects a camera pose change estimation from the pose change and the set of additional pose changes that corresponds to a best matching reconstructed image.

公开(公告)号：US11055827B2

公开(公告)日：2021-07-06

申请号：US16729039

申请日：2019-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fahd Bouzaraa ,  Onay Urfalioglu ,  Ibrahim Halfaoui

IPC: G06T5/00 ,  G06T5/50

Abstract: The invention relates to an image processing apparatus for generating an HDR image associated with a first view on the basis of a plurality of LDR images, including a first LDR image and a second LDR image. The first LDR image is associated with the first view and a first exposure, i.e. a first dynamic range, and the second LDR image is associated with a second view and a second exposure, i.e. a second dynamic range. The image processing apparatus comprises a processor configured to provide a neural network having a plurality of neural subnetworks including a first neural subnetwork. The first neural subnetwork is configured to generate the HDR image on the basis of: (i) the first LDR image, (ii) the second LDR image, and (iii) a modified first LDR image. The modified first LDR image is associated with the first view and the second exposure.

公开(公告)号：US20240104773A1

公开(公告)日：2024-03-28

申请号：US18523567

申请日：2023-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mohammad Altillawi ,  Ibrahim Halfaoui ,  Onay Urfalioglu

IPC: G06T7/73

CPC classification number: G06T7/74 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30244

Abstract: A data processing apparatus for determining a pose of an image capturing device based on an image of a three dimensional (3D) scene is disclosed. The data processing apparatus comprises a processing circuitry configured to: select a plurality of key two dimensional (2D) points of a plurality of 2D points of the image based on a respective score of each of the plurality of 2D points; determine at least for a subset of the plurality of 2D points of the image a respective feature vector for obtaining a plurality of feature vectors; concatenate the image with the plurality of feature vectors for obtaining an intermediate tensor; determine a plurality of 3D points of the 3D scene based on the intermediate tensor; and determine the pose based on the plurality of key 2D points of the image and the plurality of 3D points of the 3D scene using a Perspective-n-Point scheme.

公开(公告)号：US11017509B2

公开(公告)日：2021-05-25

申请号：US16448662

申请日：2019-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fahd Bouzaraa ,  Onay Urfalioglu ,  Ibrahim Halfaoui

IPC: G06T5/00 ,  G06T5/10 ,  G06T5/50

Abstract: A method and an apparatus for generating a High Dynamic Range, HDR, image are proposed. The method comprises obtaining a set of two or more input images, the two or more input images including a reference image and one or more non-reference images; for each of the one or more non-reference images, performing an image analysis which comprises, for each region of a plurality of regions of the non-reference image, assessing whether the region of the non-reference image and a corresponding region of the reference image show the same image content and declaring the region of the non-reference image as valid or as invalid based on the assessment; and generating the HDR image by fusing the reference image and the one or more non-reference images, wherein the fusing comprises, for each of the one or more non-reference images, disregarding the invalid regions of the respective non-reference image.

公开(公告)号：US20170069059A1

公开(公告)日：2017-03-09

申请号：US15355660

申请日：2016-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Onay Urfalioglu ,  Ibrahim Halfaoui ,  Giovanni Cordara

IPC: G06T5/00 ,  G06K9/52 ,  G06T1/60 ,  G06K9/62

CPC classification number: G06T5/00 ,  G06K9/52 ,  G06K9/6215 ,  G06T1/60 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/20021 ,  G06T2207/20048

Abstract: An image processing apparatus for processing a digital image, where the digital image comprises a reference block and a plurality of further blocks, and where the image processing apparatus comprises a determiner being configured to determine a plurality of similarity measures between the reference block and the plurality of further blocks, wherein each similarity measure indicates a similarity between a noise distribution in the reference block and a noise distribution in a further block of the plurality of further blocks, and the determiner being further configured to determine a plurality of similar blocks from the plurality of further blocks upon the basis of the plurality of similarity measures.

Abstract translation: 一种用于处理数字图像的图像处理装置，其中所述数字图像包括参考块和多个另外的块，并且其中所述图像处理装置包括确定器，其被配置为确定所述参考块和所述多个图像之间的多个相似性度量 其中每个相似性度量指示参考块中的噪声分布与所述多个另外块的另一块中的噪声分布之间的相似度，并且所述确定器还被配置为从所述多个另外的块中确定多个相似块 基于多个相似性度量的另外的块。