Replace the wrong GPS Coordinate recorded

How to solve the inaccuracy of GPS coordinates? is there any way to replace gps coordinates to the nearest one located on a road?

Answer 1

[Jaynik]

Hi Charbel,

I understand that you want to replace the gps coordinates to the nearest one on a road. I assume that you have the road data in the form of coordinates. For a given latitude and longitude, you can obtain the nearest coordinates with the help of the "knnsearch" function from the "Statistics and Machine Learning Toolbox".

% roadPoints is the coordinates of roads & gpsCoordinate is the inaccurate GPS coordinate input
nearestIdx  = knnsearch(roadPoints, gpsCoordinate);
matchedCoordinate = roadPoints(nearestIdx, :);

Refer the following link to learn more about "knnsearch":

• https://www.mathworks.com/help/stats/knnsearch.html

Hope this helps!