Photogrammetry Mode

Compared to a traditional accident processing methodology, RAPARDS was designed to shorten processing time considerably. The automatic recognition of imported accident site photographs and the automatic measuring of distances, angles etc. minimize user input, thereby reducing the amount of time to gather and record information manually.

Multi-view Combining

Depending on the nature and scale of the accident, one photograph might not be enough to capture all essential information. In this case, the system is able to create a single diagram by combining information from multiple images.

To use this function, a user simply defines common points visible on several photos. Once all relevant information is in the system, the software can, once again, generate a diagram and print out report on site.

The Ruler Tool

When taking a picture, it is crucial to place the ruler tool at the accident site as a reference. The automatic recognition algorithm analyzes the size and position of the tool in each picture, thereby establishing a scale and measuring angles. The tool’s size, shape and coloring are optimized to increase recognition by the algorithm and hence accuracy of measurements in different lighting conditions.

Ruler Tool Recognition in Uneven Light Patterns

Despite the color distortions caused by the bright light on the left (relative to the surroundings shadows), the algorithm still correctly recognizes the shape of the ruler tool (bottom picture).

If the system fails identify the ruler tool, a frame tool is provided for users to select the area where the ruler tool is. This should help identifying the ruler tool.

However, if both the automatic recognition and the frame tool don’t work, users can manually input the ruler tool by clicking on the vertexes of the ruler too clockwise.