Items

3dsMax Traditional modeling

Oblique photogrammetry semi-automated human-computer interaction modeling

Onboard laser-scanned point clouds are modeled in conjunction with oblique photographic imagery

Basic data

Large-scale digital line graphics, vertical photogrammetry images, and partial textures of figures obtained by manual field re-shooting.

Photogrammetry images, flight control data, ground control points, etc.

Airborne laser point cloud, oblique photogrammetry image, flight control data, ground control point, etc.

Process flow

Manually determine the position of the figure in the 3dsMax with digital line graphics, manually generate white molds, process images, and fit textures.

Images of the top and sides of the figure are obtained through oblique photogrammetry, and only image modeling is used.

Multi-angle image fusion modeling of the top and side of the figure is obtained through on-board laser point cloud and oblique photogrammetry, and the point cloud generates structure and the image fits the texture.

Production results

Most of them are patch structure data, that is mesh surface models.

4D products can be generated, 3D real scene models.

4D products can be generated, 3D real scene models.

Production cycle

The cycle is long and inefficient, with less than one square kilometer per day.

Short cycle times, moderate efficiency, and human-machine interactive semi-automatic modeling.

The cycle time is long, the efficiency is high, the modeling is almost fully automated, and there is less manual intervention.

Scene features

Artificially constructed digital and virtualized 3D scenarios.

The real scene digitizes the three-dimensional scene. But it is easily deformed and distorted by the occlusion position and hidden position of itself or foreign objects.

In the 3D real scene, the figure structure generated by the laser point cloud is accurate, and the texture mapping of the oblique image is clear.

The process is cumbersome, the operation is complex, the degree of automated modeling is low, the time and experience of manual investment are more.

The process is simple, the degree of automated modeling is fast and efficient, and the workload of manual editing data is reduced.

The process is simple and the difficulty of operation is moderate. Most in-house workflows can be automated, but areas with poor aesthetic results require manual intervention to repair.