Constructing 3D model from Disc Image Files

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15 comments, last by jenny_wui 11 years ago

Hello I have a set of Disc Image Files. I would like to know how can I reconstruct 3D model from these images.

Thanks in advance.

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You will have to be more specific than that.

Is there something you want to mention about the significance of them being on a CD (or an image of a CD) rather than on a harddrive? Is this about the image format itself or the format of the 3D models inside it?

In what format are the files?

L. Spiro

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yeah, i guess the 3dmodel files are on a disc. Totally a mix of composition.

Image of a CD is called so, but its a ditto copy of the cd content, but in a file. If thats what your looking for Jenny_wui, then you gotta

a) burn it to a disc or

b) mount it on a virtual CD drive.

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The file type is written as Disk Image File. I have 90 X-sections i.e. 90 Disk mage Files. All I am concerned about constructing 3D model from the images. I would prefer surface-based rendering. I have never dealt with these kind of images. Please provide me with some suggestions.

Thanks again in advance.

Another thing to note when I try to burn to disc, it shows, the extention of file is img. When I try to burn a particular image to disk, it shows, the selected disk image file is not valid.

If you are working on Windows, the visible file type is solely dependent on the file extensions for nearly everything there, including the more descriptive text like "Disk Image File". While it is not common for the average user, file extensions often have quite a bit of overlap or files are simply named wrongly.

The actual file extension would be slightly more helpful but probably won't be enough to solve your problem. Where are those files from? Is there any documentation included?

I received a folder containing a set of cross-sectional images of coronary artery acquired by IVUS pull-back. It is said that each image is stored as raw format where the size is 256 pix by 256 pix with 1 byte per pixel (i.e., 65536 bytes per image).

Opening the images should be trivial with this description. Using those images to reconstruct a 3D model is not, unfortunately. I'm not well enough versed in the area to comment but I fear there will be no simple solution and you will need to spend quite a bit of time acquiring rather specialist knowledge.

But how can I open the images?

Open the file in binary and read the first 256 bytes. Now you have the first line or row of the image in grayscale (0-255). Whether it is a line or row will depend on whoever created the image and is not documented in the text you posted. Neither is documented if that line/row is the top/left or bottom/right line/row. Read the next 256 bytes. Now you have the next line/row of the image in grayscale.

I'm afraid the question is far too fuzzy to answer in a more meaningful way. What do you know? What causes you difficulty? What have you tried?

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