Vision processing method and device for welding line auto-tracking
AssigneeSamsung Electronics Co., Ltd.
InventorJae-Sun Kim
Life of this patent
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Abstract
A vision processing method and device which processes a photographed-object image to provide information about a position and shape of the object, and perform the steps of forming a shape-memory contour model having a tendency to mention its original shape, the model being capable of changing its shape and position by an exterior operation; giving an outline of the shape-memory elastic contour model on the basis of an image of a photographed object; displacing the outlined contour model to an area expected to be occupied by the image of the photographed object; modifying the shape-memory elastic contour model in response to an exterior force generated in the image of the photographed object; and determining an image coordinate of the photographed object on the basis of the modified model.
Claims20
A vision processing method, comprising the steps of:
- forming a shape-memory elastic contour model having a tendency to maintain an original shape, the shape-memory elastic contour model changing shape and position based upon an exterior operation;
- giving an outline of the shape-memory elastic contour model based upon an image of an object which has been photographed;
- displacing the outlined contour model to an area to be expected to be occupied by the image of the photographed object;
- modifying the shape-memory elastic contour model in response to an exterior force, wherein the exterior force is generated in the image of the photographed object;
- and
- determining an image coordinate of the photographed object based upon the modified model.
A vision processing method to track a welding line of an object, the vision processing method comprising the steps of:
- determining an image of the object;
- forming a shape-memory elastic contour model based upon the image of the object;
- modifying a position and a shape of the shape-memory elastic contour model based upon the image and an expected area to be occupied by the image;
- and
- determining an image coordinate of the object based upon the modified model.
A vision sensor comprising:
- a laser diode to emit a laser beam;
- a cylindrical lens to make the laser beam linear;
- a mirror to reflect the linear laser beam toward a weldment;
- a band filter to selectively transmit the linear laser beam reflected from the weldment;
- and
- a camera to view the weldment by receiving the linear laser beam reflected from the weldment and selectively transmitted by the wide band filter.
A tracking device to track a welding line of an object, comprising:
- a vision sensor to form an image of the object;
- and
- a controller to form a shape-memory elastic contour model and to modify a position and shape of the shape-memory model based upon the image, and to determine an image coordinate of the object based upon the modified model.
Dependencies are inferred from the claim text.