CN109919065A - A method of focus is obtained on the screen using eyeball tracking technology - Google Patents
A method of focus is obtained on the screen using eyeball tracking technology Download PDFInfo
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- CN109919065A CN109919065A CN201910145780.1A CN201910145780A CN109919065A CN 109919065 A CN109919065 A CN 109919065A CN 201910145780 A CN201910145780 A CN 201910145780A CN 109919065 A CN109919065 A CN 109919065A
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Abstract
The invention discloses a kind of methods for obtaining focus on the screen using eyeball tracking technology, the first step, and it is N number of region that screen display content, which is used grid division,；Second step, using image capture device, capture eyes see to it is different when eye slight change and extract feature, be aided with blink identification, watch identification, twitching of the eyelid identification technology attentively, get parms；Third step is calculated by the parameter of acquisition, completes the identification of region-of-interest；4th step analyzes the interest preference of client, switching display content according to the content of focus region, and reacquires the new focus of user, into control process next time.By the above-mentioned means, the present invention can obtain client's focus, it is possible to reduce the limitation to equipment installation position, the usage scenario of expansion equipment improve the acquisition speed of user interest and focus, the effective utilization of lifting means.
Description
Technical field
The present invention relates to marketing to experience apparatus field, is obtained on the screen more particularly to a kind of using eyeball tracking technology
The method of focus.
Background technique
Human-computer interaction is realized on the screen, needs to lead to using interactive devices such as touch screen, infrared touch frame, interaction radars
Software capture touch event is crossed, the focus of client is obtained.
Human-computer interaction based on touch-control, equipment need to be equipped with touch device, and relative cost is higher, to the installation site of equipment
It must be limited in the range of human body can touch and reach with software touch point position, while the limb action of client being needed to cooperate to obtain and close
Focus is infused, the usage scenario of equipment is limited.
Summary of the invention
Focus is obtained on the screen using eyeball tracking technology the invention mainly solves the technical problem of providing a kind of
Method, be able to use eyeball tracking technology, tracked according to the changing features of eyeball and eyeball periphery, obtain user watch attentively
Region on the screen, in conjunction with the analysis to twitching of the eyelid path, to analyze the interest preference of client according to focus.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of use eyeball tracking skill is provided
The method that art obtains focus on the screen, comprising the following steps:
The first step, it is N number of region that screen display content, which is used grid division,；
Second step, using image capture device, capture eyes see to it is different when eye slight change and extract feature, it is auxiliary
With blink identification, watch identification, twitching of the eyelid identification technology attentively, obtain following parameter:
Twitching of the eyelid path P=(B1,B2,...,Bn), wherein Bi(i=1...n) region that eye gaze is crossed is indicated；
Picture gaze duration TaAll fixation time summations of=picture；
Region gaze duration Tn(n=1...N) all fixation time summations in=interest region；
Rate R is stared in subregion zoningn(n=1...N)=Tn/Ta；
Calculate average gaze rate M=(R1+R2+...+RN)/N；
Rate variance S=((R is stared in zoning1-M)2+(R2-M)2+...+(RN-M)2)/N；
The identification of third step, region-of-interest uses under type such as to calculate:
When rate variance S > S is stared in regionaIt when (parameter), indicates that client has the region paid close attention to, takes out region and stare rate
Focus of the high region as client；
When rate variance S≤S is stared in regionaWhen (parameter), twitching of the eyelid indicates search of the client to attentinal contents, uses such as lower section
Method obtains client's focus:
Twitching of the eyelid path length, which is greater than N1 (1≤N1≤N), indicates the content that display content does not have client to pay close attention to；
The flyback number in certain region is greater than N2 (1≤N2≤N1) in twitching of the eyelid path, obtains the high region conduct of flyback number
The focus of client；
4th step analyzes the interest preference of client according to the content of focus region, switching display content, and
The new focus of user is reacquired, into control process next time.
The beneficial effects of the present invention are: the present invention obtains client's focus using eyeball tracking technology, it is possible to reduce right
The limitation of equipment installation position, the usage scenario of expansion equipment improve the acquisition speed of user interest and focus, lifting means
Effective utilization.
Detailed description of the invention
Fig. 1 is a kind of one preferred embodiment of method for obtaining focus on the screen using eyeball tracking technology of the present invention
Schematic diagram.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A method of focus is obtained on the screen using eyeball tracking technology, comprising the following steps:
The first step, it is N number of region that screen display content, which is used grid division,；
Second step, using image capture device, capture eyes see to it is different when eye slight change and extract feature, it is auxiliary
With blink identification, watch the technologies such as identification, twitching of the eyelid identification attentively, obtain following parameter:
Twitching of the eyelid path P=(B1,B2,...,Bn), wherein Bi(i=1...n) region that eye gaze is crossed is indicated；
Picture gaze duration TaAll fixation time summations of=picture；
Region gaze duration Tn(n=1...N) all fixation time summations in=interest region；
Rate R is stared in subregion zoningn(n=1...N)=Tn/Ta；
Calculate average gaze rate M=(R1+R2+...+RN)/N；
Rate variance S=((R is stared in zoning1-M)2+(R2-M)2+...+(RN-M)2)/N；
The identification of third step, region-of-interest uses under type such as to calculate:
When rate variance S > S is stared in regionaIt when (parameter), indicates that client has the region paid close attention to, takes out region and stare rate
Focus of the high region as client；
When rate variance S≤S is stared in regionaWhen (parameter), twitching of the eyelid indicates search of the client to attentinal contents, uses such as lower section
Method obtains client's focus:
Twitching of the eyelid path length, which is greater than N1 (1≤N1≤N), indicates the content that display content does not have client to pay close attention to；
The flyback number in certain region is greater than N2 (1≤N2≤N1) in twitching of the eyelid path, obtains the high region conduct of flyback number
The focus of client；
4th step analyzes the interest preference of client according to the content of focus region, switching display content, and
The new focus of user is reacquired, into control process next time.
The present invention obtains client's focus using eyeball tracking technology, it is possible to reduce the limitation to equipment installation position,
The usage scenario of expansion equipment improves the acquisition speed of user interest and focus, the effective utilization of lifting means.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (1)
1. a kind of method for obtaining focus on the screen using eyeball tracking technology, which comprises the following steps:
The first step, it is N number of region that screen display content, which is used grid division,；
Second step, using image capture device, capture eyes see to it is different when eye slight change and extract feature, be aided with and blink
Outlook is other, watches identification, twitching of the eyelid identification technology attentively, obtains following parameter:
Twitching of the eyelid path P=(B1,B2,...,Bn), wherein Bi(i=1...n) region that eye gaze is crossed is indicated；
Picture gaze duration TaAll fixation time summations of=picture；
Region gaze duration Tn(n=1...N) all fixation time summations in=interest region；
Rate R is stared in subregion zoningn(n=1...N)=Tn/Ta；
Calculate average gaze rate M=(R1+R2+...+RN)/N；
Rate variance S=((R is stared in zoning1-M)2+(R2-M)2+...+(RN-M)2)/N；
The identification of third step, region-of-interest uses under type such as to calculate:
When rate variance S > S is stared in regionaWhen (parameter), indicate that client has the region paid close attention to, it is high that rate is stared in taking-up region
Focus of the region as client；
When rate variance S≤S is stared in regionaWhen (parameter), twitching of the eyelid indicates search of the client to attentinal contents, obtains with the following method
Take client's focus:
Twitching of the eyelid path length, which is greater than N1 (1≤N1≤N), indicates the content that display content does not have client to pay close attention to；
The flyback number in certain region is greater than N2 (1≤N2≤N1) in twitching of the eyelid path, obtains the high region of flyback number as client
Focus；
4th step analyzes the interest preference of client according to the content of focus region, switching display content, and again
The new focus of user is obtained, into control process next time.
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| CN112966872A (en) * | 2021-03-17 | 2021-06-15 | 京诚数字科技(江苏)有限公司 | Camera-based attention prediction analysis method and device and terminal |
| WO2022042766A1 (en) * | 2020-08-25 | 2022-03-03 | 荣耀终端有限公司 | Information display method, terminal device, and computer readable storage medium |
| CN115019570A (en) * | 2021-03-03 | 2022-09-06 | 北京七鑫易维信息技术有限公司 | Intelligent teaching system |
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