Calibration method and device and electronic equipment

A calibration method and a calibration parameter technology, applied in the field of computer vision, can solve problems such as large gaps in monitoring results and affecting monitoring accuracy

Pending Publication Date: 2021-04-20
SHANGHAI SENSETIME INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking intelligent driving as an example, the above-mentioned monitoring function uses the driver's head posture and eye sight data. When the driver drives a different model or the camera of the monitoring system is installed at different positions in the same cabin, fixed calibration parameters are used. It will lead to a large gap in monitoring results and affect the accuracy of monitoring

Method used

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  • Calibration method and device and electronic equipment
  • Calibration method and device and electronic equipment
  • Calibration method and device and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0169] Embodiment 1. The system automatically selects the target calibration mode

[0170] In an embodiment of the present application, the above step 11 may specifically be: when the login request information is detected, determining a preset calibration mode as the target calibration mode.

[0171] Wherein, the preset calibration mode in the embodiment of the present application may include: a real-time calibration mode, a history matching mode, and a default calibration mode.

[0172] In the embodiment of the present application, the calibration mode adopted by the DMS may be preset, and when the system detects the above login request information, it will automatically determine the preset calibration mode as the target calibration mode.

[0173] Exemplarily, assuming that the system pre-agrees to adopt the above-mentioned default calibration mode, when the DMS detects the above-mentioned user login request information, it will automatically determine the above-mentioned de...

Embodiment approach 2

[0175] Embodiment 2: Manually select the target calibration mode

[0176] see image 3 According to a flowchart of another calibration method shown in an exemplary embodiment, the above step 11 may include:

[0177] In step 111, when the login request information is detected, triggering to enter the calibration selection mode;

[0178] In the embodiment of the present application, when the monitoring system detects the login request information, such as when the user manually triggers the login request; or, when the login request is automatically triggered, the monitoring system may trigger to enter the calibration selection mode.

[0179] Among them, the computer system can trigger to enter the calibration selection mode when any of the following operations are detected:

[0180] Trigger condition 1. When logging into the monitoring system for the first time; for example, when the DMS set in a vehicle is triggered to start up for the first time, or when the smart vehicle is...

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Abstract

The invention provides a calibration method and device and electronic equipment, and the method is applied to a monitoring system of a predetermined three-dimensional space, and comprises the steps: determining a target calibration mode when login request information for the monitoring system is detected; according to the target calibration mode and a face image currently detected in the predetermined three-dimensional space, determining calibration parameters of the monitoring system suitable for a current application scene; and loading the calibration parameters into the monitoring system. By adopting the calibration method provided by the embodiment of the invention, personalized calibration parameters can be configured for three-dimensional spaces with different structures, different application scenes and even different users, so that personalized calibration is carried out on the monitoring system in the predetermined three-dimensional space, and the monitoring system can better monitor the states of the users.

Description

technical field [0001] The present application relates to the technical field of computer vision, in particular to a calibration method, device and electronic equipment. Background technique [0002] Monitoring systems play an important role in applications such as intelligent driving, human-computer interaction, and security monitoring. In terms of human-computer interaction, by locating the three-dimensional position of the human eye in space and combining the three-dimensional line of sight direction, the position of the human gaze point in the three-dimensional space is obtained and output to the machine for further interactive processing. In terms of attention detection, by estimating the line of sight direction of the human eye, judging the gaze direction of the person to obtain the area of ​​interest of the person, and then judging whether the person's attention is concentrated. In terms of intelligent driving, by monitoring the driver's gaze area, line of sight dire...

Claims

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Application Information

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IPC IPC(8): G06T7/80G06K9/00
Inventor 易成名梁冠华毛宁元
Owner SHANGHAI SENSETIME INTELLIGENT TECH CO LTD
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