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A heat map generation method based on eye jump information

A heat map and eye saccade technology, applied in 2D image generation, image data processing, instruments, etc., can solve the problems of ignoring eye saccade information, unable to reflect the observer's gaze path, etc., and achieve strong creative effects

Pending Publication Date: 2019-05-21
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional method can intuitively express the area where the observer is looking at, but ignores the saccade information that expresses the shift of the gaze point, and cannot reflect the gaze path of the observer

Method used

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  • A heat map generation method based on eye jump information
  • A heat map generation method based on eye jump information
  • A heat map generation method based on eye jump information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 A method for generating a heat map based on saccade information is shown, the method comprising the following steps:

[0037] S1 input original gaze point;

[0038] S2 preprocesses the gaze point data to remove error data;

[0039] S3 merges the preprocessed gaze points;

[0040] S4 converts the merged fixation parameterization into saccade type data (see image 3 );

[0041] S5 generates an effective heat map from the parameterized gaze points.

[0042] In S4, the saccade type data is represented by a vector.

[0043] Such as figure 2 The heat map shown is generated by:

[0044] S51 first generates a heat map of a unit gaze point;

[0045] S52 deforms the unit heat map according to the current saccade vector v;

[0046] S53 superimposes the heat map in S52 to a suitable position;

[0047] S54 maps the value range of the image to [0,255] to generate an effective heat map.

[0048] The method of deforming the unit heat map is as follows: firs...

Embodiment 2

[0056] Depend on Figure 5 The comparison chart between the traditional method and the method in this paper shows the comparison between the traditional method (the first row) and the method in this paper (the second row). When the point moves quickly, the points in the traditional method are scattered and lack coherence; while the method in this paper can clearly show the movement track of the gaze point. The advantages of the method in this paper are more obvious in short-term dynamic scenes.

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Abstract

The invention relates to the technical field of computer visualization, in particular to a heat map generation method based on eye jump information, which comprises the following steps: S1, inputtingan original fixation point; S2, preprocessing the fixation point data to remove error data; S3, carrying out merging operation on the preprocessed fixation points; S4, converting the combined fixationpoint parameterization processing into eye jump type data; S5, generating an effective heat map from the parameterized fixation points; According to the invention, a mixed data structure of fixationpoints and eye skips is used, and a heat map deformation method for eye skips type data is added. The heat map generated by using the method provided by the invention has a good function of indicatingthe transfer path of the gaze area on the basis of keeping the original function of displaying the gaze area, and has strong creativity.

Description

technical field [0001] The invention relates to the technical field of computer visualization, in particular to a heat map generation method based on saccade information. Background technique [0002] Heatmaps are an important tool for eye movement data analysis and visualization. [0003] et al. proposed a method of using linear, sinusoidal or Gaussian models to generate heat maps, taking into account the influence of parameters such as sensitivity, brightness, and concealment on the heat map effect, and many of the subsequent works are improvements based on this. Blignaut's heat map generation method mainly focuses on how to make the heat map closer to the eyes, and also gives the specific method of color mapping. [0004] The above-mentioned traditional method can express the gaze area of ​​the observer very intuitively, but ignores the saccade information expressing the shift of the gaze point, and cannot reflect the gaze path of the observer. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): G06T11/00
Inventor 战荫伟李耀东杨卓
Owner GUANGDONG UNIV OF TECH
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