Abstract
Abstract. In the process of digital restoration of cultural heritage, for the disappeared royal gardens, where information is relatively scarce, the process of accurate digital restoration usually encounters a problem of how to effectively use the fragmented and limited historical and status quo information for discernment, to achieve accurate digital alignment restoration of the disappeared royal gardens in the region, and to complete the overall digital restoration of boundaries and patterns. Taking Changchun Garden as an example, this paper uses recent status quo mapping, aerial photography and current status quo structures as the basis, historical archival materials, style house plans, early mapping, early aerial photography and various historical documents as the starting point for the credibility and priority of various materials, and uses the iconic remaining information of key locations, such as buildings, water systems and fences, through historical traces, relative positions and proportional relationships. The identification of the 'line' is done by using the 'point' to determine the location of the wall in the east, north, west and south directions, thus defining the boundary and pattern of the historical Changchun Garden. This approach is based on the disappearing royal gardens and the digital restoration process can be effective in completing the task of solving problems and giving ideas and directions to those working in the relevant fields.
Highlights
The process of digital restoration of cultural heritage generally involves acquiring basic data through 3D laser scanning and tilt photogrammetry to achieve highly accurate regional alignment and digital restoration
The Changchun Garden was an early imperial garden of the Qing Dynasty, a typical imperial garden like the Summer Palace, but today the original site is completely untouched by buildings, with only two temple gates remaining to bear witness to its existence
The first thing we need to know is that the boundary of the wall of the Changchun Garden has changed at different times, following the reconstruction and expansion of the palace gate area after the Wanshou celebrations in the 52nd year of the Kangxi era, plus the later construction of the Enyou and Enmu temples, and the encroachment of the Chengze Garden in the north-east in the 25th year of the Daoguang era
Summary
The process of digital restoration of cultural heritage generally involves acquiring basic data through 3D laser scanning and tilt photogrammetry to achieve highly accurate regional alignment and digital restoration. The definition of boundaries and patterns is an important element of the digital restoration process, and if the identification method is not appropriate, the results of the same data will be very different or will take many detours before an accurate restoration can be achieved, and will directly affect the rest of the digital restoration work. In my own work and in studying the results of others, I have found that the recovery process is flawed due to inappropriate methods, and I have taken many detours and done some useless work. This time, based on experience, I have summarised some methods and suggestions to take the opportunity to help those who work in the field
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