Nt1310 Unit 3 Data Analysis Project
Introduction/Background
The project contains two parts, photogrammetric survey, and GIS analysis. The photogrammetric survey part was done by Agisoft photoscan software. This kind of survey is desired in many fields, such as Archeology field. This is because of the tendency of collapsing in Archeology’s targets. On the other hand, ArcMap and ArcScene are responsible for the data analysis part. With GIS, the complexity of the 3D data can be simplified, the data can be interpreted, and new data can be generated. Plus, we can comfortably work on improving our model by digitizing, coloring, outlining, and updating data even after we finish the project.
Methods
First, I would like to explain the materials used in this projects. In addition to the mentioned software, fifty photos were taken using Samsung NX2000 20.3MP CMOS Smart WiFi Mirrorless Digital Camera with 20-50mm Lens and 3.7" Touch Screen LCD (Black). Those photos were taken in a counter-clockwise direction around the object. …show more content…
From the Workflow menu, I ran the photo’s alignment, which can fix the camera locations and create sparse point could. As I don’t have a mask for my object, I had to delete all the unnecessary points in the sparse point cloud using the selection tools on the toolbar. So, the masking is not really an initial step here. I was able to view the conjugate points, and the camera’s locations. But, this wasn’t a clear view of the object, and it looked similar to the data we get from Lidar. In addition, adjusting the bounding box is strongly recommended in this step because the next steps will only be applied to the points inside the box. Also, we may fix the axis by rotating the box so that the object will be displayed perfectly when exported to other
The project contains two parts, photogrammetric survey, and GIS analysis. The photogrammetric survey part was done by Agisoft photoscan software. This kind of survey is desired in many fields, such as Archeology field. This is because of the tendency of collapsing in Archeology’s targets. On the other hand, ArcMap and ArcScene are responsible for the data analysis part. With GIS, the complexity of the 3D data can be simplified, the data can be interpreted, and new data can be generated. Plus, we can comfortably work on improving our model by digitizing, coloring, outlining, and updating data even after we finish the project.
Methods
First, I would like to explain the materials used in this projects. In addition to the mentioned software, fifty photos were taken using Samsung NX2000 20.3MP CMOS Smart WiFi Mirrorless Digital Camera with 20-50mm Lens and 3.7" Touch Screen LCD (Black). Those photos were taken in a counter-clockwise direction around the object. …show more content…
From the Workflow menu, I ran the photo’s alignment, which can fix the camera locations and create sparse point could. As I don’t have a mask for my object, I had to delete all the unnecessary points in the sparse point cloud using the selection tools on the toolbar. So, the masking is not really an initial step here. I was able to view the conjugate points, and the camera’s locations. But, this wasn’t a clear view of the object, and it looked similar to the data we get from Lidar. In addition, adjusting the bounding box is strongly recommended in this step because the next steps will only be applied to the points inside the box. Also, we may fix the axis by rotating the box so that the object will be displayed perfectly when exported to other