DENSE FEATURE SCALE DETECTION FOR IMAGE MATCHING

Patent №

US 11,367,205

Granted

2022-06-21

Filed 2019

Owner

SNAPCHAT, INC.

+1 more

Lab

AI components

3

ml · vision · hardware

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

16721483

Dense feature scale detection can be implemented using multiple convolutional neural networks trained on scale data to more accurately and efficiently match pixels between images. An input image can be used to generate multiple scaled images. The multiple scaled images are input into a feature net, which outputs feature data for the multiple scaled images. An attention net is used to generate an attention map from the input image. The attention map assigns emphasis as a soft distribution to different scales based on texture analysis. The feature data and the attention data can be combined through a multiplication process and then summed to generate dense features for comparison.

Machine learningVisionAI hardwareG06T 7/248G06T 7/33G06V 10/454G06V 10/764G06V 10/82G06T 7/40G06T 2207/10016G06T 2207/20084

AI classification

Vision1.00
Machine learning1.00
AI hardware1.00
Knowledge representation0.04
Evolutionary computation0.00
Natural language0.00
Planning0.00
Speech0.00

Ownership

SNAPCHAT, INC.

assignment · 599830325

SNAP INC.

assignment · 599830437

Assignors

WANG, SHENLONG, LUO, LINJIE, ZHANG, NING, LI, JIA, SNAPCHAT, INC.

On an employer assignment, the assignors are typically the inventors.

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