At present, the mental health problems of college students in China are on the rise. Many incentives lead to college students becoming a psychological vulnerable group, lacking the minimum “decompression ability” in the face of pressure. With the emergence of new media and the increasingly obvious fusion of new media and traditional media, the recognition algorithm of media fusion begins to enter people’s vision, and multimedia fusion has gradually formed an irresistible development trend. Based on the media fusion recognition algorithm under the background of media fusion, this paper studies the model of college students’ mental health education. In the process of comparing the accuracy of college students’ mental health, the accuracy of this method is the highest, up to 99.25%, followed by the decision tree algorithm, up to 80.53%, and finally the ant colony algorithm, up to 75.25%. Therefore, this method is more conducive to the study of college students’ mental health. Under the media fusion recognition algorithm, colleges and universities should give full play to the advantages of media fusion, broaden the path of mental health education, enhance the effectiveness of mental health education, improve the quality and efficiency of education, and guide the mental health growth of college students.
Urban square landscape construction has important value in urban development, environmental protection, aesthetic appreciation and so on. The introduction of computer aided technology to promote the digital transformation of landscape planning and design can further improve the efficiency and quality of planning and design. The urban square landscape design and planning project is taken as the main body of the study. Specific design and analysis were carried out for the experimental platform construction, three-dimensional object realization and urban square landscape design model construction scheme, and AHP was used to establish a virtual reality urban square landscape design evaluation model. The final evaluation results show that using computer technology and software can complete the construction of virtual reality scene with high efficiency, accuracy and quality. Based on the evaluation model of city square landscape design and integration of CAD rendering technology, the three-dimensional city square landscape design simulation system designed in this paper closely integrates. production of domestic plant database, suitable for city square landscape terrain design, parametric design of city square ancillary facilities, etc., well meet the needs of professional designers, fully fill the blank of domestic city square professional software.
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