Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for sight tracking free of scaling

A gaze tracking and calibration-free technology, applied in the field of calibration-free gaze tracking devices, can solve the problems of inconvenient use, inability to accurately determine the user's eye gaze position, and wasting time.

Active Publication Date: 2017-09-08
上海青研科技有限公司
View PDF11 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main problem existing in the prior art is that using an eye tracker to track the device user's gaze requires calibration or calibration before each use (generally adopting the method of gazing at a number of calibration points at specific positions in sequence), otherwise the eye movement The instrument cannot accurately determine the gaze position of the user's eyes, which is inconvenient to use and wastes time

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
  • Device and method for sight tracking free of scaling
  • Device and method for sight tracking free of scaling
  • Device and method for sight tracking free of scaling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: According to the above-mentioned technical principle, the gaze tracking device 10 in the present invention can be used by merchants to evaluate the commodities that customers are interested in and the display locations or location areas they are interested in. In the first embodiment, the gaze tracking device 10 is used to collect users' interest in the displayed items when the products are advertised or displayed in the shop window. like image 3 As shown, 9 commodities are displayed in the window (A, B, C, D, E, F, G, H, and I are used to replace each commodity in the figure, and the types of commodities are items that can be displayed in the window. Such as toys, electrical appliances, etc.), each product corresponds to a line of sight tracking module 100, and the line of sight tracking module is installed directly below the product, and the distance between the two is relatively small. In this embodiment, the distance between the two can be can be ign...

Embodiment 2

[0033] Embodiment 2: In this embodiment, several gaze tracking modules are turned on or off sequentially according to a set time period. Within the set time period, all the eye-tracking modules are turned on or off sequentially, so that within this time period, each image acquisition unit can only obtain one corneal reflective point image, which greatly improves the efficiency of the eye-tracking device. like Figure 4 As shown, three switch panels (1, 2, 3) are arranged side by side on the wall, wherein switch panel 1 represents the light switch, switch panel 2 represents the central air-conditioning switch, and switch panel 3 represents the floor heating system switch. The tracking module 100 is integrated into the center of the panel, while the switchgear is embedded in the wall. Set the turn-on period of the three eye-tracking modules to 0.1 second. When the human eye looks at the switch installation area on the wall, the three eye-tracking modules are turned on in turn w...

Embodiment 3

[0034]Embodiment 3: In this embodiment, the gaze tracking device includes a control unit and several controlled devices (201-205), the control unit receives the data transmitted by the data processing unit in the gaze tracking device, and sends instructions to control the controlled devices according to the data . The gaze tracking device 10 is used to control various switch devices installed on walls in the home, such as Image 6 As shown, it includes a light switch 201, a central air-conditioning switch 202, a floor heating system switch 203, a fresh air system switch 204, and a smart home central controller switch 205 arranged in sequence, and each switch device is correspondingly equipped with a line of sight tracking module 100, and each line of sight The tracking module includes a light source 101 and an image acquisition unit 102 .

[0035] In this embodiment, for the convenience of implementation, the gaze tracking module 100 is arranged under the switch device, which...

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 present invention discloses a device for sight tracking free of scaling. The objective of the invention is to realize tracking of a device user's watching position. The device comprises a plurality of sight tracking modules, each sight tracking module has different space coordinates in a target area, each sight tracking module comprises at least one light source and is configured to form a cornea reflective spot (a first Purkinje image) on the user's cornea, and each sight tracking module also comprises at least one image obtaining unit configured to capture user's cornea reflective spot image and pupil image. The device also comprises a data processing module configured to determine the user's sight watching position or position area according to the cornea reflective spot image and the pupil image and store the data of the user watching the space coordinates. The present invention further discloses a method applied to the sight tracking device. The device and method for sight tracking free of scaling are free of scaling or calibration, can conveniently track the device user's sight and determine the user's watching position and watching area.

Description

technical field [0001] The invention belongs to the field of eye movement control, and in particular relates to a calibration-free sight tracking device and method. Background technique [0002] Eye-tracking technology can be used in a wide range of fields, such as computer fields, psychology and physiological detection fields, marketing and advertising, and many other fields. Eye-tracking technology can also be used to gather information about the user's level of interest in items displayed on the shelf. [0003] The eye-tracking technology in the prior art mainly adopts the following technical solution: use the camera in the eye tracker (generally including one or two cameras and several infrared light sources) to capture the user's eye image, and use the corneal reflection of the infrared light source in the eye image to capture the image of the user's eye. The relative positional relationship of the point to the center of the pupil determines where the user's eyes are l...

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): G05B19/04G06F3/01
CPCG05B19/04G06F3/013Y02B20/40
Inventor 杜煜傅之成
Owner 上海青研科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com