A depth image calibration method and system of a TOF camera system

A TOF camera and depth image technology, applied in the field of 3D imaging, can solve problems such as the accuracy of measuring distance, random noise, reduction of electron mobility, etc., to achieve the effect of enhanced reliability and reduced measurement error

Active Publication Date: 2019-06-18
WUHAN JUXIN MICROELECTRONICS CO LTD
View PDF9 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3) Temperature drift: In CMOS photoelectric sensors, temperature rise will lead to higher heat-generated electron rate, and electron mobility will decrease with temperature rise, so temperature change will affect

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 depth image calibration method and system of a TOF camera system
  • A depth image calibration method and system of a TOF camera system
  • A depth image calibration method and system of a TOF camera system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] figure 1 A flow chart of a depth image calibration method for a TOF camera system provided by an embodiment of the present invention, such as figure 1 shown, including:

[0034] S101. Obtain a corresponding depth image according to the original phase image collected by the time-of-flight TOF camera system;

[0035] S102. Perform geometric correction, temporal ...

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 embodiment of the invention provides a depth image calibration method and system for a TOF camera system, and the method comprises the steps: obtaining a corresponding depth image according to anoriginal phase image collected by the time-of-flight TOF camera system; And respectively carrying out geometric correction, time domain noise reduction and spatial domain noise reduction processing, FPPN correction, Wiggling correction and temperature error compensation on the depth image to obtain a calibrated depth image. multi-aspect calibration is carried out on a depth image; geometric correction, time domain noise reduction and spatial domain noise reduction processing, FPPN correction, Wigning correction and temperature error compensation are carried out, errors introduced from multipleaspects are eliminated, a calibrated depth image is obtained, so that the measurement error is greatly reduced, the reliability of the finally obtained depth image is greatly enhanced, and the methodcan be further applied to various depth applications.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of 3D imaging, and more specifically, to a depth image calibration method and system for a TOF camera system. Background technique [0002] Binocular ranging, structured light and Time-of-Flight (TOF) are the three mainstream 3D imaging technologies today. Among them, TOF has been gradually applied due to its simple principle, simple and stable structure, and long measurement distance. Gesture recognition, 3D modeling, unmanned driving and machine vision and other fields. [0003] The working principle of TOF technology is: the TOF camera actively emits a modulated light source to the surface of the measured object, the modulated light is reflected by the object and then captured by the TOF camera, and the distance between the object and the camera is obtained by calculating the time difference or phase difference between the modulation light source and the capture period. depth / distan...

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
IPC IPC(8): G06T5/00G06T7/80H04N5/232H04N5/365G01B11/02
Inventor 华凤明幼林孔繁晓董舒刘德珩
Owner WUHAN JUXIN MICROELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap