| High-quality water landscapes can improve the quality of natural scenic areas and promote tourism development.However,current research on river landscapes has focused on riverfront perspectives,while few studies have investigated visual quality or quantitative assessment from a water perspective.This paper uses the theory of landscape as the theoretical basis for landscape analysis and evaluation,and analyzes and evaluates the "three-in-one" objective intuitive space,subject-object perceptual space and subjective image space through the dynamic perspective of Li River water travel,and the research method is based on deep learning semantic segmentation model analysis,GIS spatial modeling analysis,python programming extraction analysis,SD semantic analysis,statistical analysis and questionnaire survey to quantify the aesthetic sense of the Li River water traveling landscape,with the goal of improving the dynamic visual experience of water travel.Starting from the environment and perception,the five main landscape nodes of the golden waterway of the Li River,Yangdi scenery,Xialong scenery,langshi scenery,Jiuma painting mountain and yellow cloth reflection,are comprehensively and quantitatively evaluated on the water travel space,which has important theoretical and practical significance for improving the water travel landscape.Relying on the three levels of scenic and expansive theories and mysteries,this study established 22 evaluation indicators that can describe objective visual characteristics and subjective perceptions,and applied them to the perspective of water travel at different tourist speeds for experimental evaluation.Through field measurement,computer-aided and questionnaire survey,the sensing mechanism between "objective visual features-visual perception-visual perception" is explored,the reference for the evaluation of the water travel is clarified,the sensing model of the water travel is established,the mechanism of the dynamic landsca.The mathematical calculation method is introduced to propose a specific quantitative formula for aesthetics,and the preferred indicators with great influence on the correlation of water travel are extracted,and the main research results are as follows:(1)The theory of the Olympic Landscape is applied to the dynamic viewing perspective of water travel for the first time,which expands the research field of the Scenic Mystery,enriches the connotation of the Occult Theory,and strengthens the basic theoretical research of the Expanse Mystery.(2)Through literature collection and field research,22 quantitative indicators for the evaluation of the travel space of the Li River were established,including "objective-subjectivesubjective combination",and the influence weights of the objective composition indicators were sky proportion> brightness,saturation > viewing distance> mountain proportion>mountain morphology> viewing speed> reflection proportion> complexity index > destructive index.(3)According to the evaluation index of the Li River water travel expansive Olympic performance,the three viewing speeds of the Li River Golden Waterway were experimentally verified,and the water travel landscape under different travel speeds was quantitatively studied by computer-aided,field measurement and questionnaire,and the sensing mechanism of the water traveling dynamic landscape was discovered,and the evaluation reference of the water travel dynamic landscape was proposed,and the Li River water travel sensing model and aesthetic quantification formula were constructed.(4)Through linear regression analysis,nine objective preferred indicators with great correlation influence were obtained,which were divided into first-level indicators and secondlevel indicators,the first-level indicators were: sky proportion,brightness saturation,visual distance and mountain morphology;The secondary indicators are: cruise viewing speed,mountain morphology,proportion of reflection,complexity index and destructive index;To provide reference for improving the visual perception of traveling on the water.(5)In view of the landscape samples with low scores in the Li River essence section,the deficiencies are summarized,and the measures and suggestions to improve the upstream landscape are put forward based on the response model of "objective character-subjective visual perception" for reference for the optimization of the upstream landscape. |
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