Operation image positioning method and system thereof

An operation image positioning system, comprising:

• a first positioning mark fixed on a treated portion;
• a second positioning mark fixed on an X-ray imaging machine;
• a point-cloud camera operable to capture a point-cloud image, wherein the point-cloud image contains the first positioning mark and the second positioning mark;
• an image positioning camera operable to capture a positioning image, wherein the positioning image contains the first positioning mark;
• and
• a computer system communicatively connected to the point-cloud camera and the image positioning camera so as to receive the point-cloud image and the positioning image, wherein the computer system performs steps of:
• recognizing the first positioning mark within the point-cloud image so as to compute a first conversion module between the point-cloud camera and the treated portion;
• recognizing the second positioning mark within the point-cloud image so as to compute a second conversion module between the point-cloud camera and the X-ray imaging machine;
• computing a third conversion module between the treated portion and the X-ray imaging machine according to the first conversion module and the second conversion module;
• recognizing the first positioning mark within the positioning image so as to compute a fourth conversion module between the image positioning camera and the treated portion;
• and
• computing a fifth conversion module between the image positioning camera and the X-ray imaging machine according to the third conversion module and the fourth conversion module.