Palm image recognition method and apparatus, device, storage medium, and program product

Patent metadata

Field	Value
Publication number	US-2024257562-A1
Application number	US-202418626162-A
Country	US
Kind code	A1
Filing date	Apr 3, 2024
Priority date	Jul 18, 2022
Publication date	Aug 1, 2024
Grant date	—

Abstract

This application discloses a palm image recognition method performed by a computer device. The method includes: performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image ( 304 ); determining location information of the palm relative to the camera based on the palm box and the palm image; and displaying a palm identifier corresponding to the palm based on the location information, the palm identifier being used for indicating the palm to move to a preset spatial location corresponding to the camera to obtain an object identifier corresponding to the palm image. A user, based on the palm identifier, moves its palm to the preset spatial location corresponding to the camera to perform palm image recognition.

First claim

What is claimed is:

1 . A palm image recognition method performed by a computer device, and the method comprising:
performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image; determining location information of the palm relative to the camera based on the palm box and the palm image; and displaying a palm identifier corresponding to the palm based on the location information, the palm identifier being used for indicating the palm to move to a preset spatial location corresponding to the camera to obtain an object identifier corresponding to the palm image.

2 . The method according to claim 1 , wherein the performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image comprises:
performing palm detection on the palm image to determine parameter information of the palm; and generating the palm box for the palm in the palm image based on the parameter information of the palm, the parameter information of the palm comprising a width, a height, and a palm box center point of the palm.

3 . The method according to claim 2 , wherein the determining location information of the palm relative to the camera based on the palm box and the palm image comprises:
determining orientation information of the palm relative to the camera based on the palm box center point and an image center point of the palm image.

4 . The method according to claim 2 , wherein the determining location information of the palm relative to the camera based on the palm box and the palm image comprises:
calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box.

5 . The method according to claim 4 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating an area of the palm box based on the width and the height of the palm box; and comparing the area of the palm box with a preset area threshold to obtain the distance information of the palm relative to the camera.

6 . The method according to claim 4 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating a first distance value of the palm relative to the palm image recognition device based on the width of the palm box and a first threshold, the first threshold being a value of a preset width of the palm box.

7 . The method according to claim 4 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating a second distance value of the palm relative to the palm image recognition device based on the height of the palm box and a second threshold, the second threshold being a value of a preset height of the palm box.

8 . The method according to claim 4 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating a first distance value of the palm relative to the palm image recognition device based on the width of the palm box and a first threshold; calculating a second distance value of the palm relative to the palm image recognition device based on the height of the palm box and a second threshold; and obtaining the distance information of the palm relative to the camera based on the first distance value and the second distance value.

9 . The method according to claim 1 , wherein the method further comprises:
performing image division on the palm image to obtain at least two grids; predicting at least one palm box for each grid by using a palm box recognition model to obtain a confidence value corresponding to each predicted palm box; and determining the palm box for the palm in the palm image based on the confidence value corresponding to the predicted palm box.

10 . The method according to claim 9 , wherein the method further comprises:
obtaining a sample palm image and a sample palm box corresponding to the sample palm image; performing data processing on the sample palm image by using the palm box recognition model to obtain a predicted palm box; and updating a model parameter of the palm box recognition model based on a difference between the predicted palm box and the sample palm box.

11 . A computer device comprising a processor and a memory, the memory storing at least one computer program, and the at least one computer program being loaded and executed by the processor and causing the computer device to implement a palm image recognition method including:
performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image; determining location information of the palm relative to the camera based on the palm box and the palm image; and displaying a palm identifier corresponding to the palm based on the location information, the palm identifier being used for indicating the palm to move to a preset spatial location corresponding to the camera to obtain an object identifier corresponding to the palm image.

12 . The computer device according to claim 11 , wherein the performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image comprises:
performing palm detection on the palm image to determine parameter information of the palm; and generating the palm box for the palm in the palm image based on the parameter information of the palm, the parameter information of the palm comprising a width, a height, and a palm box center point of the palm.

13 . The computer device according to claim 12 , wherein the determining location information of the palm relative to the camera based on the palm box and the palm image comprises:
determining orientation information of the palm relative to the camera based on the palm box center point and an image center point of the palm image.

14 . The computer device according to claim 12 , wherein the determining location information of the palm relative to the camera based on the palm box and the palm image comprises:
calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box.

15 . The computer device according to claim 14 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating an area of the palm box based on the width and the height of the palm box; and comparing the area of the palm box with a preset area threshold to obtain the distance information of the palm relative to the camera.

16 . The computer device according to claim 14 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating a first distance value of the palm relative to the palm image recognition device based on the width of the palm box and a first threshold, the first threshold being a value of a preset width of the palm box.

17 . The computer device according to claim 14 , wherein the calculating distance information of the palm relative to the camera based on the width and/or the height of the palm box comprises:
calculating a second distance value of the palm relative to the palm image recognition device based on the height of the palm box and a second threshold, the

Assignees

• Tencent Tech Shenzhen Co Ltd

Inventors

• Yuan Yafei
• Ge Wen
• Jiao Lulu
• Huang Jiayu
• Guo Runzeng
• Zhang Ruixin
• Zhang Yingyi
• Zhou Hang
• Wang Jun

Classifications

• G06T7/11

  Region-based segmentation · CPC title

• G06F18/00

  Pattern recognition · CPC title

• G06V10/25

  Determination of region of interest [ROI] or a volume of interest [VOI] · CPC title

• G06V40/67 Primary

  by interactive indications to the user · CPC title

• G06V10/761

  Proximity, similarity or dissimilarity measures · CPC title