US 12,278,997 B2
Feature data encoding method, apparatus and device, feature data decoding method, apparatus and device, and storage medium
Lu Yu, Dongguan (CN); Yuchao Shao, Dongguan (CN); Hualong Yu, Dongguan (CN); Zhihuang Xie, Dongguan (CN); and Zhenyu Dai, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN); and GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Apr. 7, 2023, as Appl. No. 18/132,020.
Application 18/132,020 is a continuation of application No. PCT/CN2020/119850, filed on Oct. 7, 2020.
Prior Publication US 2023/0247230 A1, Aug. 3, 2023
Int. Cl. H04N 19/00 (2014.01); H04N 19/172 (2014.01); H04N 19/90 (2014.01)
CPC H04N 19/90 (2014.11) [H04N 19/172 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method for encoding feature data, comprising:
determining first feature data corresponding to each of channels to be encoded;
performing data type conversion processing on the first feature data corresponding to each channel to obtain second feature data that meets a data input condition of an apparatus for encoding feature data;
performing spatial re-expression on the second feature data corresponding to each channel to obtain third feature data, wherein a height of the third feature data conforms to a first height, a width of the third feature data conforms to a first width, and the third feature data comprises the second feature data located at a target position of each of the channels; and
encoding the third feature data and signalling in a bitstream,
wherein performing spatial re-expression on the second feature data corresponding to each channel to obtain the third feature data comprises:
padding the second feature data corresponding to each channel in spatial domain based on a second height and a second width to obtain padded second feature data;
splicing the padded second feature data corresponding to each channel into a target feature map in spatial domain, wherein the target feature map has the first height and the first width; and
acquiring feature data of the target feature map to obtain the third feature data.