Street View Add-On

Features

• Height Estimation
• Coordinates Estimation

How to use

DevTool

1. Open Google Street View.
2. Open DevTool(F12).
3. Copy commands and paste it to console.
4. Close DevTool(F12).

Extension

1. Download ZIP and unzip it.
2. Go to the Extensions page by entering chrome://extensions in a new tab.
3. Enable Developer Mode by clicking the toggle.
4. Click the Load unpacked button and select the directory of the folder you just unzip.
5. Done! Open Google Street View to check.

How does it work

1. From the Street View URL, we can retrieve the Coordinates, Yaw (bearing), and Pitch of the camera.
2. The Distance to the object is determined using the camera height (2.5m) and the Pitch when capturing the intersection point between the object and the floor.
3. The Height of the object is determined using the Distance and the Pitch when capturing the object's vertex.
4. The Coordinates of the object can be determined using the Coordinates, the Distance and the Yaw of the camera when capturing the object.

Note

This tool is based on an easy Trigonometric Measurements method, so there have some principles need to know.

1. The intersection point between object and ground and the point you want to measure must be on the same vertical line.
2. The object and camera must be on the same height plane, so the closer the camera is to the building, the more accurate the estimate will typically be.
3. Street View must be captured by a Street View car with a camera height of 2.5 m, not a Street View Trekker.

Now you can deal with these situations mentioned in 3 and 4 by adding modifier.

4. The Coordinates of the camera are not necessarily correct, especially images taken by Street View Trekker. The Yaw and pitch may also have a bit distortion.

Materials from いらすとや