Hand segmentation from an RGB and depth image obtained from kinect device

1 次查看（过去 30 天）

kowshik Thopalli 2017-8-19

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/353295-hand-segmentation-from-an-rgb-and-depth-image-obtained-from-kinect-device

评论： Shyam verma 2021-6-9

Hi all. I am trying to use the dataset from this paper and segment hand from the image. I attach a sample RGB and depth image. I have written this code.

    close all; 
depth_map=load('3.txt');
imagesc(depth_map);
image=imread('4.jpg');
figur;imshow(image);
foo=depth_map;
min_v=min(foo(foo>0));
threshold=min_v+100;%threshold - varying this is not helping much but ofcourse will deteriorate 
foo(foo>threshold)=0;
BW=imbinarize(foo);
figure; imshow(BW);%shown in result3.jpg file.

The result is shown in the result3,jpg file which is attached. As you can see even elbow comes. How do I segment just the hand? I am relatively new to RGB and depth images and kinect. Any help is greatly appreciated.

5 个评论
显示 3更早的评论隐藏 3更早的评论

kowshik Thopalli 2017-8-19

Btw it is a beautiful cartoon. I apologise for being vague.

Shyam verma 2021-6-9

Hey! can you give the dataset as the link that you mentioned above for dataset is not working/showing error.

with regards

shyamverma345@gmail.com

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Image Analyst 2017-8-19

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/353295-hand-segmentation-from-an-rgb-and-depth-image-obtained-from-kinect-device#answer_278553

在 MATLAB Online 中打开

If the person always has a black wrist band, then you should have 2 blobs, not 1, and then you can use bwareafilt() to extract the largest one, which will be the forearm, and then subtract that from the original mask to get only the hand.

forearmMask = bwareafilt(binaryImage, 1);
handMask = binaryImage & ~forearmMask;

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

kowshik Thopalli 2017-8-19

Two issues. One I am not getting two blobs by using the code that I am doing. And it is very heuristic to select the threshold. Here in this example I have 100. But I have 1000 images and this number keeps varying.how to over come these? I have a feeling that what I am doing is not correct. Can you please show me the right path.

请先登录，再进行评论。

请先登录，再回答此问题。