KỸ THUẬT CẢI THIỆN CHẤT LƯỢNG VÀ HIỆU SUẤT KHÂU ẢNH TRONG PHẪU THUẬT XÂM LẤN TỐI THIỂU

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Tác giả: Thị Ngân Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2022

Mô tả vật lý: tr.382-388

Bộ sưu tập: Metadata

ID: 332276

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Minimally Invasive Surgery (MIS) is a surgical technique of the present and the future. However, there are two major challenges in the MIS technique: the quality of the stitched image and the speed of the image stitching. Because MIS has very high requirements on the precision of tissue surgery and the time taken by the surgeon. Therefore, this paper proposes a method to improve the quality of the stitched image and speed of the image stitching to provide the surgeon with a good image of the surgical area in the best time. The proposed method is: reduce the time spent to detecting feature points in the small image by using OpenCL and improve the quality of the stiched image by finding the best hemography matrix. Research results show that the time spent to detecting feature points is reduced by seven times compared to the current method, so the stitched speeding will be faster. Moreover, the number of detected feature points is 3 times higher compared to the current method , so the quality of the stitched image is better. This proposed method give promises to improve existing limitations in laparoscopic surgery.Phẫu thuật xâm lấn tối thiểu (MIS) là một kỹ thuật phẫu thuật của hiện tại và tương lai. Tuy nhiên, MIS gặp phải hai thách thức lớn về chất lượng của ảnh khâu và tốc độ khâu ảnh. Bởi vì MIS yêu cầu rất cao về độ chính xác phẫu thuật mô và thời gian thực hiện của bác sĩ phẫu thuật. Do đó, bài báo này đề xuất phương pháp cải thiện chất lượng ảnh khâu và tăng tốc độ khâu ảnh để cung cấp cho bác sĩ phẫu thuật hình ảnh tốt về khu vực phẫu thuật với thời gian tốt nhất. Phương pháp đề xuất đó là: giảm thời gian phát hiện các điểm đặc trưng trong ảnh nhỏ bằng cách sử dụng OpenCL và cải thiện chất lượng ảnh khâu bằng cách tìm ma trận Hemography tốt nhất. Kết quả nghiên cứu cho thấy thời gian phát hiện các điểm đặc trưng giảm bảy lần so với phương pháp hiện tại, do vậy tốc độ khâu ảnh sẽ nhanh hơn. Hơn nữa, số lượng điểm đặc trưng được phát hiện cao gấp 3 lần so với phương pháp hiện tại, do vậy, chất lượng ảnh ghép tốt hơn. Phương pháp đề xuất hứa hẹn sẽ cải thiện những hạn chế hiện có trong phẫu thuật nội soi.

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