A Visual Salience Model of Landmark Based on Virtual Geographical Experiments

doi:10.11947/j.AGCS.2018.20180107

Abstract

Abstract: In this paper,a visual salience model of landmark based on virtual geography experiments is proposed for landmark discrimination and salience calculation.Taking the calculation of salience model of city buildings as an example,visual factors of landmarks and their calculation are first analyzed,and then a virtual experiment environment is developed to incorporate eye tracking as well as controllable and computable visual factors.Furthermore,a quantitative model of the relationship between eye movement factors and visual salience of landmark is derived from empirical results.Based on the quantitative model,further experiment is designed to solve the equation of visual salience model of landmark by fitting experimental data,which describes the relationship between a visual salience of landmark and visual factors.The key to the proposed method is to use eye movement factors to represent a salience model in a virtual environment with controllable and computable visual factors,and then the salience model can be calculated through landmark cognition experiments and data analysis.This method can not only reduce the complexity of landmark research,but also overcome the difficulty of repeating the experiments,which makes it a unique advantage to solve problem that tackles interaction mechanism between human and environments such as landmark discrimination.

Key words: virtual geographic experiments, landmark, visual salience model, eye movement

CLC Number:

P208

JIA Fenli, TIAN Jiangpeng, ZHI Meixia, CHEN Lingyu, YANG Qingli. A Visual Salience Model of Landmark Based on Virtual Geographical Experiments[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(8): 1114-1122.

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