160 / 2022-02-27 20:26:28

Digitization of Outcrop Driven by DDE

DDE,Digital Outcrop,UAV Modeling,UE4

Human activities emit a large amount of greenhouse gases, which directly lead to the increase in the frequency of extreme weather, so the assessment and prediction of climate change are closely related to human life. The earth has experienced many climatic and environmental changes in the long history of evolution, and its processes have been recorded in detail in the strata of different times, and the most intuitive research carrier of the strata is the outcrop in the field. At present, the preservation methods of geological information extracted from outcrops in the field mostly rely on text records and two-dimensional figures The discommunication of data caused by the differences in research focus greatly reduces the utilization rate of the original data, which makes the research cycle and cost rise inevitably. Establishing a new storage mode of outcrop data, improving data interoperability and reducing the difficulty of data acquisition are the main contents of this paper. At the same time, it also responds to the purport of DDE: linking and coordinating global deep earth data and sharing global geoscience knowledge. Tilt photography modeling of UAV, as a new technology of outcrop digitization, is in the stage of development. many scholars have tried to model and verified the accuracy and fidelity of the model, which prove that the accuracy and fidelity of the model have met the basic requirements of geological research. however, the fusion of geological models of different scales and the fusion of macro and micro geological information remain to be solved. In this paper, UAV tilt photography is used as a modeling means to digitize the field outcrop in Yongning, Guizhou Province; combined with the UE4 development engine, the fusion of multi-precision outcrop model is completed; through the UE4 engine blueprint space programming development function, the micro geological information is integrated with the outcrop model by clicking the pop-up window, and finally a virtual outcrop profile information digital database which can be roamed in the first person is built. The system not only provides a new scheme for the preservation of field outcrop and the storage of geological information, but also improves the interactivity of geological information.