| With the rapid development of the digital age,the relationship between images and cities has become more and more intimate,and the use of propaganda films to shape the image of cities has become an important way to improve the soft power of cities.Compared with large cities,the urban image presented by the propaganda film of small and medium-sized cities has the problem of "similarity and difference",the commonality of urban imagery displayed in the propaganda film is flooded,the personality is lost,resulting in the old city containing history and collective memory is difficult to show its rhyme,the rapid development of the new city is lackluster,this thesis takes Kevin Lynch’s urban imagery theory as the starting point,from an interdisciplinary perspective,combined with the creation of the graduation work"Chat,a City",to explore how the propaganda film of small and medium-sized cities can better use urban imagery for image construction,then to create a distinct and three-dimensional image of the city.In addition to the introduction and conclusion,this article is divided into four chapters,the first chapter is a review of the concept of urban propaganda film and urban imagery,this chapter focuses on the conceptual definition of urban imagery and the division of element composition,in addition to further clarifying the relationship between urban imagery and urban propaganda film.The second chapter expands on the basis of the five elements of urban imageability proposed by Kevin Lynch,cuts from the perspective of local context and culture context,divides urban imagery into natural imagery and humanistic imagery,and combines the work to sort out and interpret the imagery elements,that is,to interpret "meaning" with "image".The third chapter is based on urban imagery for the theme positioning,content aggregation and structure of urban propaganda films,that is,to unify "images" with "meaning".The fourth chapter focuses on how to use audiovisual techniques to strengthen the transmission of meaning,while creating audiovisual aesthetic enjoyment,further triggering the audience’s deep emotional perception,so that the audience perceives the meaning behind the urban image representation,that is,to reach the "meaning" with"shape".In short,the core of the city’s promotional film is to show the distinctive personality of the city,and the characteristics of the city are often rooted in the local context and culture context of a city.Therefore,it is necessary to excavate personalized urban imagery in both contexts of the city,extract the thematic meaning of condensing the spirit of the city,and use the artistic technique of image creation to strengthen the meaning,make full use of urban imagery for image construction,and realize the effective shaping of urban image. |