公开(公告)号：US20180192070A1

公开(公告)日：2018-07-05

申请号：US15741304

申请日：2016-06-30

Applicant: ATEME

Inventor： Etienne DUPUIS ,  Mathieu MONNIER ,  Jean-Marc THIESSE ,  Pierre LARBIER

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/119 ,  H04N19/61 ,  H04N19/70 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/513 ,  H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/182 ,  H04N19/194 ,  H04N19/33 ,  H04N19/40 ,  H04N19/523 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85

Abstract: Disclosed is a method of encoding a video sequence according to a first set of encoding parameters is presented, including redimensioning the video sequence, generating encoding data of the redimensioned video sequence according to a second set of encoding parameters, determining first encoding data of the video sequence by respective scale transposition of encoded data generated for the redimensioned video sequence, determining, for at least one encoding block of an image of the video sequence, respective pixel residuals from predictive coding data obtained by encoding the redimensioned video sequence applying a block transformation to the pixel residuals determined, and inserting the transformed pixel residuals and the first encoding data into a binary encoding stream of the video sequence.

公开(公告)号：US20170264914A1

公开(公告)日：2017-09-14

申请号：US15529031

申请日：2015-11-20

Applicant: ATEME

Inventor： Zineb AGYO ,  Mathieu MONNIER ,  Jean-Marc THIESSE ,  Pierre LARBIER

IPC: H04N19/52 ,  H04N19/154 ,  H04N19/19 ,  H04N19/176 ,  H04N19/109 ,  H04N19/11

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/11 ,  H04N19/139 ,  H04N19/147 ,  H04N19/154 ,  H04N19/176 ,  H04N19/19 ,  H04N19/573

Abstract: Disclosed is a method for encoding a first image in a set of images, in which the first image is cut into blocks, each block being encoded according to one from a plurality of encoding modes including at least one temporal correlation prediction encoding mode using a plurality of images from the set of images. The method includes, for a current block of the first image: determining a first motion estimation vector of the current block, determining a value of a visual distortion metric for a temporal correlation prediction encoding mode, the visual distortion metric using a distance between a first temporal prediction vector of the current block pointing to the second image and the first motion estimation vector of the current block, and using the value of the visual distortion metric to encode the current block.