How to get the z-value's map?

[hangkaitan]

Can you tell me how to get the face depth-map throw. I want to get the map, but i don't know how to deal with it. Thank you very much.

[yfeng95]

Hi, the z-channel of vertices is actually the depth value, the problem is they are not pixel-pixel corresponding to the 2D image. So a simple way is to interpolate the value then get the depth-map(which means each pixel in 2D image has a depth value). A more accurate way is to render the mesh(which interpolates using triangles) and then get the depth channel. I think they have few differences if your input image is not too large.

If you are still confused with this, I will write a function that you can directly get the depth map. But I may do this one or two months later.

Thanks for your reporting.

[GewelsJI]

Hi! @YadiraF I have the same problem as he and fail to deal with it? Can you provide some help with me about how to generate hotmap(facial depth map) from vertices?

[nwdxbx]

Hi, the z-channel of vertices is actually the depth value, the problem is they are not pixel-pixel corresponding to the 2D image. So a simple way is to interpolate the value then get the depth-map(which means each pixel in 2D image has a depth value). A more accurate way is to render the mesh(which interpolates using triangles) and then get the depth channel. I think they have few differences if your input image is not too large.

If you are still confused with this, I will write a function that you can directly get the depth map. But I may do this one or two months later.

Thanks for your reporting.

Hi, I also want to get the depth map of face .but I could't find the function that directly get the depth map. could you tell me where is it . Thank you very much.