公开(公告)号：US20240005453A1

公开(公告)日：2024-01-04

申请号：US18368897

申请日：2023-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Albert SAA-GARRIGA ,  Mehmet YUCEL ,  Tommaso MAESTRI ,  Konstantinos PEPPAS

IPC: G06T3/60 ,  G06V10/774 ,  G06V10/82 ,  G06V10/776 ,  G06V10/94 ,  G06N3/098 ,  G06N3/045

CPC classification number: G06T3/60 ,  G06V10/774 ,  G06V10/82 ,  G06V10/776 ,  G06V10/95 ,  G06N3/098 ,  G06N3/045 ,  G06V2201/10

Abstract: Broadly speaking, the present techniques generally relates to methods, systems and apparatuses for performing image orientation correction, i.e. correcting or adjusting images that are tilted. In particular, the present application relates to a computer-implemented method for generating a training dataset for training a machine learning, ML, model using federated learning to perform image orientation correction, and methods for training the ML model using the generated training dataset. Advantageously, the method to generate a training dataset enables a diverse training dataset to be generated while maintaining user data privacy, where the diversity refers to the range of image tilt angles represented by the dataset. The present application also provides methods for training the ML model using the generated training dataset.

公开(公告)号：US20200260062A1

公开(公告)日：2020-08-13

申请号：US16637539

申请日：2018-07-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Prashant SHARMA ,  Albert SAA-GARRIGA ,  Alessandro VANDINI ,  Tommaso MAESTRI

IPC: H04N13/122

Abstract: Provided is an electronic device for stabilizing a 360-degree video, the electronic device including a memory storing one or more instructions, and a processor for executing the one or more instructions stored in the memory, wherein the processor is configured to execute the one or more instructions to: when a 360-degree video is reproduced, allocate probability values to a plurality of pixels included in a frame of the 360-degree video, based on a possibility that each of the plurality of pixels is included in a user's field of view (FOV), determine a three-dimensional (3D) rotation for the 360-degree video, based on the allocated probability values, and generate a stabilized 360-degree video by applying the 3D rotation to the 360-degree video.

公开(公告)号：US20190114807A1

公开(公告)日：2019-04-18

申请号：US16158623

申请日：2018-10-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Albert SAA-GARRIGA ,  Alessandro VANDINI ,  Tommaso MAESTRI

IPC: G06T9/00 ,  G06T3/60 ,  H04N19/172 ,  H04N19/513

Abstract: Apparatus and methods are provided. The method includes receiving content that comprises at least one 360 degree image. The method also includes applying a rotation to the at least one 360 degree image to increase a compression ratio, when a compression algorithm compresses the at least one 360 degree image that is rotated, relative to another compression ratio achieved when the compression algorithm compresses the content without the applied rotation to the at least one 360 degree image. The method also includes compressing the content including the at least one 360 degree image that is rotated based on the compression algorithm. The method further includes outputting the compressed content and a rotation parameter that defines the applied rotation.

公开(公告)号：US20210142452A1

公开(公告)日：2021-05-13

申请号：US16606004

申请日：2018-05-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Albert SAA-GARRIGA ,  Alessandro VANDINI ,  Tommaso MAESTRI

IPC: G06T5/00 ,  G06T5/40 ,  G06T3/60 ,  G06T7/20 ,  G06N20/00

Abstract: Provided is a method of processing a 360-degree image that includes: obtaining a plurality of motion vectors for a 360-degree image, determining at least one motion vector, which indicates global rotation of the 360-degree image, among the plurality of motion vectors through filtering; performing three-dimensional-transformation on the determined at least one motion vector so as to acquire three-dimensional rotation information of the 360-degree image, and correcting distortion, of the 360-degree image, caused by shaking, based on the acquired three-dimensional rotation information.

公开(公告)号：US20200380739A1

公开(公告)日：2020-12-03

申请号：US16771433

申请日：2018-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daniel ANSORREGUI ,  Albert SAA-GARRIGA ,  Tommaso MAESTRI

IPC: G06T11/00 ,  H04L9/08

Abstract: An image processing method is disclosed, comprising comparing a first image and a modified second image, the modified second image comprising a copy of the first image in which at least one pixel value of one or more pixels have been modified, and based on the result of the comparison, generating first image reconstruction information which can be combined with the modified second image to reconstruct the first image. A corresponding image reconstruction method comprises combining the image reconstruction information with the modified second image to reconstruct the first image. Apparatus for implementing the methods is also disclosed.