Method for predicting human body thoracico-abdominal surface area respiratory movement in radiotherapy
A technology of surface area and breathing movement, applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve the problems of normal tissue damage, poor patient tolerance, low treatment efficiency, etc., to improve curative effect, Increased applicability and easy parameter optimization
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[0025] The method for predicting the respiratory motion of the human body's chest and abdomen surface area in radiotherapy of this embodiment includes the following steps:
[0026] Step a. Use a light pattern projector to project a color pattern composed of three different frequency RGB cosine curves onto the surface of the human body's chest and abdomen, and place a 3CCD color camera on each side of the light pattern projector to collect scene images and send them to the computer Perform post-processing, using dual cameras to obtain the three-dimensional coordinates of the characteristic landmark points and the regional boundary line according to the principle of binocular vision;
[0027] Step b. For the two video sequences acquired by the left and right cameras, after extracting the same region and its boundary lines and feature landmark points from the corresponding image pairs, match the region boundary lines and feature landmark points respectively, an...
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