08-02-2018 дата публикации
Номер: US20180040139A1
Принадлежит:
Disclosed is a method for determining the offset or misalignment between the central or rotational axis and the optical axis of a rigid endoscope or a similar imaging device including a rigid body having an outer casing cylindrically-shaped in the direction of the optical axis, or including at least one segment having a rigid end with such a casing. The method includes taking a plurality of images with a field of view limited by a contour, the positioning of which relative to the central axis is, for each image, physically defined and specific, a relative angular rotation between the contour and the endoscope taking place between two successive images, and of determining a point or a pixel in the successively acquired images whose position remains unchanged, the point corresponding to the projection in the image plane of the central or rotational axis of the rigid body of the endoscope. 1. Procedure for determining the offset or misalignment between the central or rotating axis and the optical axis of a rigid endoscope or similar camera device , consisting of a rigid body with a cylindrical external casing , profiled in the direction of the optical axis , or consisting of at least one rigid segment end with such a casing ,{'b': 3', '1', '4', '4', '1', '3', '2', '1, 'the procedure comprising taking a series of shots, using a camera or similar sensory device () that is part of the endoscope or similar device (), with a field of vision restricted by a contour () that is polygonal, circular, or elliptical in shape, whose positioning in relation to the central or rotating axis (Δ) for each shot is physically defined and specific, with a relative angular rotation between the contour () and the endoscope or similar device () intervening between two successive shots, and determining a point or a pixel (PI, CΔ) in the images acquired successively whose position remains unchanged between the various shots, this point or pixel (PI, CΔ) corresponding to the projection in the ...
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