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Spatial data immersing interaction method based on eyeball tracking

A technology of spatial data and interactive methods, applied in the field of geographic information systems, can solve the problems of being unable to apply to people with upper limb disabilities and reducing user experience, and achieve the effect of enhancing visual interactive experience

Inactive Publication Date: 2017-05-31
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It makes the user need to focus part of their attention on the control of the hand, which reduces the user experience and is not suitable for people with upper limb disabilities.

Method used

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  • Spatial data immersing interaction method based on eyeball tracking
  • Spatial data immersing interaction method based on eyeball tracking
  • Spatial data immersing interaction method based on eyeball tracking

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Embodiment 1

[0054] In order to illustrate the idea of ​​the present invention more clearly, the immersive interaction method of spatial data based on eye tracking will be further described below. image 3 The spatial data shown is taken as an example, the original spatial data range is [(-180,-90),(180,90)], the eye focus shift threshold T is set to 5 pixels, and the width of the spatial data visualization window is set to 1000 pixels, height is set to 600 pixels, eye gaze image 3 The interaction process of midpoint F is described as an example. Openlayers is used as the spatial data display engine, and the OpenCV image processing library is used to collect camera images and process the images. The specific steps are as follows:

[0055] Step 1) Initialize the spatial data visualization window with a width of 1000 pixels and a height of 600 pixels. The original geographic coordinate range of the spatial data is [(-180,-90),(180,90)], according to formula (1)-( 2) Calculate the coordinat...

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Abstract

The invention discloses a spatial data immersing interaction method based on eyeball tracking. The method comprises the following steps that a spatial data visualized window is initialized, a camera is started, the eyes are sequentially clapped on four vertexes of the spatial data visualized window, and the position the eyeball sight line focal point in an image collected by the camera is calibrated. After position calibration is completed, spatial data visualization interaction is started, the facial image is collected through the camera, the eyeball sight line focal point position is calculated, novel central point geographic coordinates of the spatial data visualized window are calculated according to the sight line focal point position, and then the image in the spatial data visualized window is updated. The defect that the hands need to be relied on in the traditional spatial space interaction mode is overcome, all attention of a user is paid to the spatial data visualized window, the spatial data visualized interaction experience is enhanced, and the spatial data immersing interaction method is particularly applicable to people with upper limb disability..

Description

technical field [0001] The invention relates to a geographic information system technology, in particular to an immersive interaction method for spatial data based on eye tracking. Background technique [0002] The immersive interaction method of spatial data is one of the important problems to be solved in the geographic information system. At present, the interaction method of spatial data is mainly realized through interactive devices such as mouse, keyboard, touchpad, etc. It can also be based on gesture recognition technology through hand movements. to interact with spatial data. In the above-mentioned interaction method, when the user uses the eyes to watch the spatial data, the user needs to use the hand to operate the device at the same time, so as to complete the interaction process of the spatial data. As a result, users need to focus on hand control, which reduces the user experience, and cannot be applied to people with upper limb disabilities. SUMMARY OF THE ...

Claims

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Application Information

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IPC IPC(8): G06F3/01
CPCG06F3/013
Inventor 郭明强黄颖刘袁缘谢忠吴亮
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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