Using vertical prediction for geometry point cloud compression

A point cloud encoder and decoder are configured to code point cloud data using predictive geometry coding and a vertical predictor. A vertical predictor is a previously coded point in the point cloud having a different laser ID compared to the currently coded point. The point cloud encoder and deco...

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Bibliographic Details
Main Authors VAN DER AUWERA, GEERT, KARCZEWICZ, MARTA, RAMASUBRAMONIAN, ADARSH KRISHNAN
Format Patent
LanguageChinese
English
Published 16.05.2024
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A point cloud encoder and decoder are configured to code point cloud data using predictive geometry coding and a vertical predictor. A vertical predictor is a previously coded point in the point cloud having a different laser ID compared to the currently coded point. The point cloud encoder and decoder may be configured to determine a pivot laser ID, determine a vertical predictor for a current point of the point cloud data, wherein the vertical predictor is based on a second point having a second laser ID different than the pivot laser ID, and code the current point using the vertical predictor and predictive geometry decoding.
Bibliography:Application Number: TW202312127044