公开(公告)号：US20170301065A1

公开(公告)日：2017-10-19

申请号：US15347610

申请日：2016-11-09

Applicant: GoPro, Inc.

Inventor： Balineedu Chowdary Adsumilli ,  Adeel Abbas ,  David Newman

IPC: G06T5/00 ,  G06T3/00 ,  G06T3/40 ,  G06T5/20

CPC classification number: G06T5/001 ,  G06T3/0087 ,  G06T3/0093 ,  G06T3/4038 ,  G06T5/006 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10012

Abstract: Systems and methods for capturing and/or processing of panoramic imaging content using spatial redundancy-based mapping. Panoramic imaging content may be processed using a processing pipeline that may operate on a portion of the image. Images may be transformed prior to processing. Image transformation may introduce distortion and/or data redundancy. Image partitioning for the pipeline processing may be configured based on spatial redundancy associated with the transformation. Windowing operation may include partitioning an image using non-rectangular and/or non-equal windows.

公开(公告)号：US20170295356A1

公开(公告)日：2017-10-12

申请号：US15259512

申请日：2016-09-08

Applicant: GoPro, Inc.

Inventor： Adeel Abbas ,  Balineedu Chowdary Adsumilli ,  David Newman

IPC: H04N13/00 ,  G06T3/40 ,  H04N19/52 ,  H04N13/02

CPC classification number: H04N13/161 ,  H04N5/2251 ,  H04N5/23238 ,  H04N13/111 ,  H04N13/194 ,  H04N13/243 ,  H04N13/282 ,  H04N13/344 ,  H04N19/597

Abstract: Apparatus and methods for characterizing panoramic content, such as by a wide field of view and large image size. In one implementation, a panoramic image may be mapped to a cube or any other projection e.g icosahedron or octahedron. The disclosure exploits content continuity between facets, such as in the case of encoding/decoding cube-projected images. One facet may be encoded/decoded independently from other facets to obtain a seed facet. One or more transformed versions of the seed facet may be obtained; e.g., one corresponding to a 90° counterclockwise rotation, another to a 90° clockwise rotation, and one to an 180° rotation. Transformed versions may be used to form an augmented image. The remaining facets of the cube may be encoded using transformed versions within the augmented image. Continuity between transformed facets in the top row of the augmented image and facets in the middle row of the augmented image may be utilized for motion or intra prediction, and to obtain greater encoding performance compared to encoding facets independently.

公开(公告)号：US20170251208A1

公开(公告)日：2017-08-31

申请号：US15414403

申请日：2017-01-24

Applicant: GoPro, Inc.

Inventor： Balineedu Chowdary Adsumilli ,  Adeel Abbas ,  David Newman

IPC: H04N19/103 ,  H04N5/247 ,  H04N5/232 ,  H04N19/127 ,  G06T3/20 ,  H04N19/124

Abstract: Systems and methods for providing imaging content using spatially varying encoding quality. Imaging content may be acquired using spherical lenses (e.g., fisheye). When viewing spherical imaging content, spherical to planar image transformations may be utilized. Such transformations (e.g., equirectangular) may be characterized by spatially varying image distortion. Transformed images may be encoded. Encoding process may be configured based on spatially varying encoding quality. Encoding quality may be configured based on the transformation such that portions of the transformed image characterized by greater distortion may be encoded using lower quality (e.g. greater QP values); portions of the transformed image characterized by lower distortion may be encoded using greater quality (e.g. lower QP values). Such encoding may produce a bitstream characterized by a lower bitrate for a given quality and/or better quality for a given bitrate as compared to an encoding process that may apply a uniform encoding quality.

公开(公告)号：US20170223368A1

公开(公告)日：2017-08-03

申请号：US15250748

申请日：2016-08-29

Applicant: GoPro, Inc.

Inventor： Adeel Abbas ,  Balineedu Chowdary Adsumilli ,  David Newman

IPC: H04N19/30 ,  H04N19/59 ,  H04N19/146

CPC classification number: H04N19/30 ,  H04N19/146 ,  H04N19/167 ,  H04N19/187 ,  H04N19/29 ,  H04N19/59

Abstract: Apparatus and methods for digital video data compression via a scalable, multi-resolution approach. In one embodiment, the video content may be encoded using a multi-resolution and/or multi-quality scalable coding approach that reduces computational and/or energy load on a client device. In one implementation, a low fidelity image is obtained based on a first full resolution image. The low fidelity image may be encoded to obtain a low fidelity bitstream. A second full resolution image may be obtained based on the low fidelity bitstream. A portion of a difference image obtained based on the second full resolution image and the first full resolution may be encoded to obtain a high fidelity bitstream. The low fidelity bitstream and the high fidelity bitstream may be provided to e.g., a receiving device.