Patent ID: 9736464
Date: 2017-08-15
CPC Classifications: A61B,G02B,G06T,H04N

Claim:
1. A microscope video processing device comprising: a microscope video acquisition unit that acquires a microscope video output from a surgical microscope at a predetermined frame rate; a video conversion unit that converts the microscope video acquired by the microscope video acquisition unit into a three-dimensional video; a surgical instrument position determination unit that, in a surgical instrument with a handle portion to which color-coded markings are applied at an equal interval to discriminate between the front end side and back end side of the surgical instrument in the microscopic video acquired by the microscope video acquisition unit, determines the position of a marking for identifying the foremost end position as front end position of the surgical instrument, and converts a coordinate value of the determined front end position in the microscope video into a coordinate value in the three-dimensional video to determine the front end position of the surgical instrument in the three-dimensional video converted by the video conversion unit; a distance calculation unit that calculates a distance between a preset patient's surgery target region and the front end position of the surgical instrument determined by the surgical instrument position determination unit; and a video output unit that outputs to a display unit an output video in which distance information indicative of the distance calculated by the distance calculation unit is displayed in the three-dimensional video, wherein the video conversion unit creates a three-dimensional CT image by overlaying CT slice images of the patient's surgery target region shot before the surgery, creates a three-dimensional MRI image by overlaying MRI slice images of the patient's surgery target region shot before the surgery, aligns and superimposes the three-dimensional CT image, the three-dimensional MRI image, and a prepared three-dimensional model image of the surgery target region to create a three-dimensional image of the patient's surgery target region, and aligns and superimposes the three-dimensional image of the patient's surgery target region and frames of the microscope video acquired by the microscope video acquisition unit to convert the microscope video into the three-dimensional video.