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Student classroom learning state online evaluation method and system

A technology for learning status and students, applied in the online evaluation method and system field of students' classroom learning status, can solve the problem that it is difficult to capture each student's facial expression and sound signal in real time, achieve reliable evaluation of teaching effects, make up for deficiencies, and improve recognition effect of effect

Inactive Publication Date: 2020-02-18
SHANDONG INST OF COMMERCE & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method of installing cameras at the four corners of the classroom can only monitor the dynamics of the entire class at a macro level, and it is difficult to capture the facial expressions and sound signals of each student in real time; (2) the problem of real-time recognition of facial expressions
This involves the positioning and processing of students' facial images and the real-time and accuracy of facial expression recognition.

Method used

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  • Student classroom learning state online evaluation method and system
  • Student classroom learning state online evaluation method and system
  • Student classroom learning state online evaluation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 Shown, a kind of online evaluation method of student's classroom learning state of the present embodiment, it comprises:

[0036] Step S101: Synchronously collect video images and sound signals of students.

[0037] In the specific implementation, the video images and sound signals of the students are synchronously collected from the video image collection area; wherein, the video image collection area is set according to the positions of the students; each video image collection area corresponds to a student.

[0038] Step S102: input video images and sound signals into the trained expression recognition model and emotional state recognition model respectively, and output the corresponding expression categories and emotional state categories of students and the corresponding probabilities; among them, expression, emotional state and classroom learning The categories of status division are the same.

[0039] In this embodiment, the categories of expre...

Embodiment approach

[0085] As an implementation mode, the online evaluation method of the students' classroom learning status also includes:

[0086] Record the class learning status category and status duration of the students evaluated, and then calculate the class learning status and proportion of the students within the preset time period.

[0087] Use historical data (week, month, semester or school year) to comprehensively judge the learning status of students for a period of time.

[0088] The students' classroom learning status and the proportion of each student's classroom learning status in a fixed period of time in a week (month, semester or school year) can be counted, as shown in formula 10. For example, the mental state of the students and the proportion of a certain state during the period from 8:00 to 10:00 every Tuesday in a month. You can choose the display mode such as table, column chart or pie chart.

[0089]

[0090] Among them, p i It is the proportion of the i-th men...

Embodiment 2

[0096] Such as figure 2 As shown, an online evaluation system for students' classroom learning status, which includes:

[0097] State detection machine 1 is configured as:

[0098] Synchronously collect video images and sound signals of students;

[0099] Input the video image and sound signal into the expression recognition model and emotional state recognition model after training respectively, and output the corresponding expression category and emotional state category of the students and the corresponding probability; among them, the division of expression, emotional state and classroom learning state The categories are all the same.

[0100] In the specific implementation, a state detection machine is placed directly in front of each student, and the state detection machine is installed on the desk to collect the front video signal and sound signal of the students during class, and process these two signals in real time , and transmit the processing results to the ho...

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Abstract

The invention provides a student classroom learning state online evaluation method and system. The student classroom learning state online evaluation method comprises the following steps: synchronously collecting video images and sound signals of students; correspondingly inputting the video image and the sound signal into the trained expression recognition model and the trained emotion state recognition model, and outputting an expression category, an emotion state category and a corresponding probability corresponding to the student, wherein the categories of the expressions, the emotional states and the classroom learning states are the same; and inputting the expression recognition result and the emotional state recognition result into a student state evaluation model, and outputting an evaluated student classroom learning state category.

Description

technical field [0001] The disclosure belongs to the field of evaluating students' classroom learning status, and in particular relates to an online evaluation method and system for students' classroom learning status. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The correct evaluation of classroom teaching effect is an important means to promote the growth of students, teachers' professional development and improve the quality of classroom teaching. As the main body of the classroom, students' performance in the classroom is an important part of the evaluation of teaching effect. However, due to the large number of students in a class, it is difficult to evaluate the classroom performance of each student. Such evaluation results are often general and not specific. This is not conducive to the quantitative evaluation of classroom effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/20G06K9/00G06K9/62G06N3/04
CPCG06Q10/06395G06Q50/205G06V40/174G06V40/161G06N3/045G06F18/2148G06F18/2411
Inventor 李霞
Owner SHANDONG INST OF COMMERCE & TECH
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