how to create range image?

hello,

does anyone know how can we convert intensity image (grayscale image) to range image?

I want to image proccessing the lidar image and I need range image .

thanks!

[DGM]

Am I to understand that "range image" in this context means a distance map of surfaces normal to the illumination axis?

What images are you starting with? I hope it's not the image on the left. If that's the case, then your problem isn't strictly range estimation, it's trying to reconstruct a 3D scene from a single projection. Without any other context, I have no idea how you'd do that.

[majid]

hello again,

I need to recunstruct the image on the right.

I think after creating the 3D scene simulation,we need to convert it to range image. but I dont know how to do it!

range image definition :

Range imaging is the name for a collection of techniques that are used to produce a 2D image showing the distance to points in a scene from a specific point, normally associated with some type of sensor device.

The resulting image, the range image, has pixel values that correspond to the distance.

I will remove the noises by a combination of filters.

I try these codes but the result are not appropriate as the upper images!!!

clear all
clc
exfilt={'*.jpg;*.png'};
[filename,filepath]= uigetfile(exfilt,'pick an image file!');
pic=imread ([filepath filename]);

imshow(pic)

J = rangefilt(pic);
imshow(J,[]) 

[majid]

and also there is images like this :

[DGM]

I am unfamiliar with handling 3D models in MATLAB, but I'm sure there's a way. My point was that you'd need a 3D model, and not just a 2D projection to do that easily.

FWIW, rangefilt() isn't what you want. Rangefilt() is just a simple sliding-window range (max-min) filter.