Kinect depth data

Question

 

Hi all;

I am trying to build an application using the depth data sensor. the problem that i need to use the full 11 bits raw data, but all the examples that I saw is based on  converting the 2byte data to an 1 byte data value to be displayed as a gray scale image,

I need the real value of the depth data.( the raw data)

Any body can help.

Thanks in advanced

 

Answer 1

Both C# and C++ SkeletalViewer samples (installed to C:\Users\Public\Documents\Microsoft Research KinectSDK Samples\NUI\SkeletalViewer) store the full depth data from depth+index stream into a variable called realDepth (in function convertDepthFrame in C# sample, and in function Nui_ShortToQuad_Depth in C++ sample). That will contain 12 bits worth of depth data for the appropriate pixel.

Hope this helps,
Eddy

---

I'm here to help

Answer 2

thank you for your help.

yes I know that but all the examples i saw till now is takeing the second byte then shifteing and masking it to extarct 5 bits, then takeing the first byte and shifting and masking to take 3 bit then combining them to have an 8 bit. as i understand from you replay that i can use the remaining 12 bit after extracting the player index bit as it is.

thanks for your help

 

---

hytham alobydi

Answer 3

You got it kinda wrong. What it does is take the second byte and shift them by 3 to take the 5 msbs of the byte (lsbs of the depth data), as you said, but in the 1st byte, it isnt taking 3 bits, its just shifting them to the left to "make space" for the 5 lsbs (Its shifting the 1st byte in an integer variable, so theres no lost data due overflow)

Answer 4

ok,

i understand thank you for your clarification.

---

hytham alobydi