Verfahren und Vorrichtung zur Prädiktiven Codierung und Decodierung von Tiefeninformationen einer Punktwolke

Details

Veröffentlichungs-Nr.

EP4716219

Anmeldetag

18. Mai 2022

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

(LG ELECTRONICS INC et al.)

Abstract

The present invention discloses a method and an apparatus for predictively coding and decoding depth information of a point cloud. A method for coding includes: obtaining original point cloud data; creating an adaptive prediction list of the depth information of the point cloud; and predictively coding the depth information of the point cloud based on the adaptive prediction list, to obtain codestream information. According to the present invention, an adaptively updated prediction list of the depth information is created, and an optimal prediction mode is selected from the list to predict the depth information of the point cloud. Therefore, discontinuity of the depth information of the point cloud caused by discontinuity of an actual scenario is resolved. Accordingly, a predicted residual and a frequency of occurrence of an outlier and a hop value, of the depth information, are significantly reduced, and prediction accuracy and coding efficiency are improved.

Anmelder

Firma

Honor Device Co., Ltd.

Land

🇨🇳 China