Supercharge Your Innovation With Domain-Expert AI Agents!

A face detection method and device based on dual cameras

A face detection and dual-camera technology, applied in the field of image processing, can solve the problem that there is no way to take into account both short-range and long-distance face detection at the same time, and achieve the effect of improving the accuracy rate and recognition rate

Active Publication Date: 2021-05-18
CHENGDU VISION ZENITH TECH DEV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the focal length of the monocular camera is usually fixed, there is no way to take into account the detection of both short-range and long-distance faces

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A face detection method and device based on dual cameras
  • A face detection method and device based on dual cameras

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0010] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0011] Such as figure 1 As shown, in the embodiment of the present invention, the dual camera includes a wide-angle camera and a telephoto camera, and the wide-angle camera and the telephoto camera are located at different positions. The distance between the wide-angle camera and the telephoto camera can be set according to actual needs. The face detection method based on dual cameras includes the following steps:

[0012] S1: Use the wide-angle camera to obtain ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a face detection method and device based on dual cameras. The dual cameras include a wide-angle camera and a telephoto camera. The method includes: using the wide-angle camera and the telephoto camera to obtain a wide-angle image and a telephoto image respectively; detecting the wide-angle image The suspected face area in the image; correct the two images respectively to obtain the wide-angle corrected image and the telephoto corrected image, and obtain the candidate face area corresponding to the suspected face area in the wide-angle corrected image; perform stereo matching on the two corrected images , get the point-to-point mapping relationship, and get the depth information of the candidate face area, the depth information contains the height value; filter out the candidate face area whose height value is within the preset range; determine the corresponding suspected face area of ​​the remaining candidate face area in the wide-angle image The face area, and extract the target face area corresponding to the suspected face area in the telephoto image according to the point-to-point mapping relationship. The present invention can simultaneously take into account the detection of short-distance human faces and long-distance human faces.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for face detection based on dual cameras. Background technique [0002] Face detection and face recognition are widely used in monitoring, security and other fields. The traditional face detection method is based on a monocular camera, and the image data obtained by the monocular camera is used for detection. Since the focal length of a monocular camera is usually fixed, there is no way to simultaneously detect both short-range and long-range faces. Contents of the invention [0003] The object of the present invention is to provide a face detection method and device based on dual cameras, which can simultaneously detect short-range faces and long-distance faces. [0004] In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a face detection method based on dual cameras, the d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06T7/80
CPCG06T7/85G06V40/161
Inventor 詹肇楷周卓立
Owner CHENGDU VISION ZENITH TECH DEV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com