公开(公告)号：US10121337B2

公开(公告)日：2018-11-06

申请号：US15395856

申请日：2016-12-30

Applicant: Axis AB

Inventor： Song Yuan

IPC: G08B13/196 ,  H04N19/115 ,  H04N19/162 ,  H04N19/17 ,  H04N19/167 ,  H04N7/18 ,  H04N21/422 ,  H04N21/4402 ,  H04N19/132 ,  H04N19/40

Abstract: A method may include receiving a video stream from a camera and displaying the video stream on a display. The method may further include obtaining, via an eye tracking sensor, information identifying a gaze area for a user watching the display; generating a gradient from the gaze area to edges of the display; and instructing the camera to decrease a bit rate of the video stream outside the gaze area based on the generated gradient.

公开(公告)号：US10057591B2

公开(公告)日：2018-08-21

申请号：US15135989

申请日：2016-04-22

Applicant: Axis AB

Inventor： Song Yuan ,  Alexandre Martins

IPC: H04N19/46 ,  H04N21/435 ,  H04N21/84 ,  H04N19/115 ,  H04N19/137 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/85

CPC classification number: H04N19/46 ,  H04N19/115 ,  H04N19/137 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/85 ,  H04N21/435 ,  H04N21/84

Abstract: A method for processing an image in a video device, comprises reading an image and combining the image with metadata related to the image by embedding the metadata in or with the image. The method further includes combining transforming the image and extracting the metadata from the image, before encoding the image in an encoder and utilizing the metadata as input in further processing.

公开(公告)号：US20180174414A1

公开(公告)日：2018-06-21

申请号：US15848726

申请日：2017-12-20

Applicant: Axis AB

Inventor： Viktor Edpalm ,  Song Yuan ,  Xing Danielsson Fan

IPC: G08B13/196 ,  H04L29/06 ,  G06K9/00 ,  G06K9/38 ,  G06T7/20

CPC classification number: G08B13/19686 ,  G06K9/00201 ,  G06K9/00234 ,  G06K9/38 ,  G06T7/20 ,  H04L63/16 ,  H04L2209/04 ,  H04N19/117 ,  H04N19/124 ,  H04N19/136 ,  H04N19/162 ,  H04N19/167 ,  H04N19/176

Abstract: A method, system, and computer program product of encoding a digital image comprising a privacy mask. Information representative of pixels in the digital image is received. The pixels are grouped into encoding units. Information representative of a privacy mask area in which a privacy mask is to be applied on the image is also received. All encoding units that at least partially are located within the privacy mask area are identified, and the privacy mask area is extended to be aligned with the identified encoding units. For each encoding unit, a respective quantization parameter to be used for encoding the image is determined. The privacy mask is applied in the extended privacy mask area of the image, and the image with the applied privacy mask is encoded using the determined quantization parameters. The digital image encoding system may be included in a camera.