How do i group cluster lines into a single line and then sort this line from left to right

I am writing codes on lane detection and have been able to detect the line in the edge images using Hough Transform, the problem now is the two steps to complete my algorithm which are; 1. Grouping the detected cluster lines in one line which will serve as the lane marking 2. sort the lane marking from left to right and find the midline of each lane. please, how do i go about this?

Answer 1

[Image Analyst]

You can find the algorithms here: http://www.visionbib.com/bibliography/contentsactive.html#Active%20Vision,%20Camera%20Calibration,%20Mobile%20Robots,%20Navigation,%20Road%20Following

15.3.3 Road, Path Following Operators
    15.3.3.1 Road Following, Depth, Stereo Based, Off-Road, Safe Path
    15.3.3.2 Lane Detection, Lane Following, White Line Detection

[olubukola ishola]

Thanks for your reply, but i cant seem to find any codes in the link you attached, all i see are just papers. Can you be a bit specific as to where i can find the code?

[Image Analyst]

Of the dozens of papers, it's probable that none are built into MATLAB, so you'll have to obtain the code from other sources. Each of the papers has contact information for the authors. That would be your first source to check. If they don't want to give or sell you the code, then you can either write it yourself, or hire the Mathworks consulting service to write it for you, or hire someone (like a university) to develop the code for you. I know that I personally don't have the code - I'd have to get it or write it just like you. Good luck.

[olubukola ishola]

Thank you

[Amir Najian]

I need to cluster a set of line segments (essentially street centerlines) into groups of similar shapes. Where do you suggest I should start? I'm quite familiar with clustering techniques in MATLAB, but not as experienced in Image Processing. Any suggestions are much appreciated.

[Image Analyst]

I'd start with a search on this page: http://www.visionbib.com/bibliography/contents.html