Image processing apparatus
AssigneeFuji Machine Mfg. Co., Ltd.
InventorTousuke Kawada
Life of this patent
Estimating the term…
Abstract
An image processing apparatus, including an image taking device which takes an image of an object, an image-data memory in which image data representing the taken image of the object is stored, a negative-search-line producing device which produces one or more negative search lines which are expected not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at the edge, and a judging device which judges whether one or more negative search lines intersect the edge of the image of the object.
Claims25
An object inspecting apparatus, comprising:
- an image taking device which takes an image of an object;
- an image-data memory in which image data representing the taken image of the object is stored;
- negative-search-line producing means for producing at least one negative search line which is expected, when at least one of a position, a rotation angle, and a dimension of the object satisfies a first predetermined condition, not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at said edge;
- and
- inspection judging means for judging that the object passes the inspection, when said at least one negative search line does not intersect the edge of the image of the object, and judging that the object does not pass the inspection, when said at least one negative search line intersects the edge of the image of the object.
A recording medium on which an object-inspecting control program is recorded which is readable by a computer and is usable by the computer to inspect an object based on image data representing an image of the object taken by an image taking device, the image data being stored in an image-data memory, the program comprising the steps of:
- producing at least one negative search line which is expected, when at least one of a position, a rotation angle, and a dimension of the object satisfies a predetermined condition, not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at said edge, and
- judging that the object passes the inspection, when said at least one negative search line does not intersect the edge of the image of the object, and judging that the object does not pass the inspection, when said at least one negative search line intersects the edge of the image of the object.
An object inspecting apparatus, comprising:
- an image taking device which takes an image of an object;
- an image-data memory in which image data representing the taken image of the object is stored;
- search-line producing means for producing (a) at least one negative search line which is expected, when at least one of a position, a rotation angle, and a dimension of the object satisfies a first predetermined condition, not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at said edge, and (b) at least one positive search line which is expected, when at least one of the position, the rotation angle, and the dimension of the object satisfies a second predetermined condition, to intersect the edge of the image of the object;
- and
- inspection judging means for judging that the object passes the inspection, when said at least one negative search line does not intersect the edge of the image of the object and said at least one positive search line satisfies at least a third condition that said at least one positive search line intersects the edge of the image of the object, and judging that the object does not pass the inspection when said at least one negative search line intersects the edge of the image of the object and said at least one positive search line does not satisfy at least the third condition.
A recording medium on which an object-inspecting control program is recorded which is readable by a computer and is usable by the computer to inspect an object based on image data representing an image of the object taken by an image taking device, the image data being stored in an image-data memory, the program comprising the steps of:
- producing (a) at least one negative search line which is expected, when at least one of a position, a rotation angle, and a dimension of the object satisfies a first predetermined condition, not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at said edge, and (b) at least one positive search line which is expected, when at least one of the position, the rotation angle, and the dimension of the object satisfies a second predetermined condition, to intersect the edge of the image of the object, and
- inspection judging means for judging that the object passes the inspection, when said at least one negative search line does not intersect the edge of the image of the object and said at least one positive search line satisfies at least a third condition that said at least one positive search line intersects the edge of the image of the object, and judging that the object does not pass the inspection when said at least one negative search line intersects the edge of the image of the object and said at least one positive search line does not satisfy at least the third condition.
An object inspecting apparatus, comprising:
- an image taking device which takes an image of an object;
- an image-data memory in which image data representing the taken image of the object is stored;
- a measuring device which measures, based on the image data stored in the image-data memory, at least one of a position, a rotation angle, and a dimension of the object;
- negative-search-line producing means for producing, based on the measured one of the position, the rotation angle, and the dimension of the object, at least one negative search line which is expected, when at least one of the position, the rotation angle, and the dimension of the object satisfies a predetermined condition, not to intersect an edge of the image of the object represented by the image data, an optical characteristic of the image significantly changing at said edge;
- and
- defect judging means for judging, when said at least one negative search line intersects the edge of the image of the object, that the object has an unexpected edge, and thereby judging that the object has a defect.
Dependencies are inferred from the claim text.