Method and apparatus for qualifying an object
OwnerKaroly Kaffka, Janos Jako +4inventors
InventorsKaroly Kaffka, Janos Jako, Gyula Domjan, Istvan Valyi-Nagy, Laszlo Gyarmati, Laszlo Godolle
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Abstract
A method and apparatus for qualifying an object. Several characteristic values of the object are determined and arranged in a sequence in a polar coordinate system having an origin. At least one quality point is determined as the center of gravity on the basis of the positions of the characteristic values in the polar coordinate system. The object is qualified according to the position of the quality point in the polar coordinate system. In determining the quality point, the characteristic values are taken into account by weighting with their distances from the origin of the polar coordinate system.
Claims25
A method for qualifying an object, comprising the steps of:
- determining several characteristic values of the object, at least two values being different from each other;
- arranging the characteristic values in a sequence in a polar coordinate system having an origin;
- assigning hypothetical masses to positions of the characteristic values, said masses being weighted as a function of the distance from an origin of said polar coordinate system;
- determining at least one quality point as a center of gravity on the basis of the weighted characteristic values in the polar coordinate system;
- and
- qualifying the object according to a position of the at least one quality point;
- wherein values of at least one quality of the object are determined from coordinate values of the at least one quality point according to a linear equation, wherein constants of the equation are obtained by regression calculation.
A method for qualifying an object in two dimensions, comprising the steps of:
- determining several characteristic values of the object as a function of a parameter for each image point of a two dimensional picture of the object;
- arranging the characteristic values for each image point in a sequence in a polar coordinate system having an origin;
- determining a quality point as a center of gravity on the basis of positions of the characteristic values in the polar coordinate system for each image point by calculating components of coordinates of the quality point for each image point and adding these components to sums of the components calculated previously so that coordinates of the quality point are defined as values proportional to the sums obtained after the determination of the last characteristic value;
- and
- qualifying the object according to the position of the quality point determined in the polar coordinate system for each image point;
- wherein said values of the quality of the object are determined from the coordinate values of the quality point by a linear equation, wherein constants of the equation are obtained by regression calculation.
An apparatus for qualifying an object, comprising:
- a device for determining several characteristic values of the object, at least two values being different from each other;
- and
- a data processing unit for arranging the characteristic values determined in a sequence in a polar coordinate system having an origin and for assigning hypothetical masses to positions of the characteristic values, said masses being weighted as a function of the distance from an origin of said polar coordinate system;
- said data processing unit including means for determining at least one quality point as a center of gravity on the basis of the weighted characteristic values in the polar coordinate system;
- wherein values of at least one quality of the object are determined from coordinate values of the at least one quality point according to a linear equation, wherein constants of the equation are obtained by regression calculation.
An apparatus for qualifying an object in two dimensions, comprising:
- a device for determining characteristic values of the object as a function of a parameter for image points of a two-dimensional picture of the object;
- and
- a data processing unit for qualifying the object on the basis of the characteristic values determined for each image point;
- said data processing unit including means for arranging the characteristic values for each image point in a sequence in a polar coordinate system having an origin, means for determining a quality point as a center of gravity on the basis of positions of the characteristic values in the polar coordinate system for each image point and means for qualifying the object according to the position of the quality point determined for each image point;
- wherein said means for determining calculates components of coordinates of the quality point for each image point, adds these components to sums of the components calculated previously and defines the coordinates of the quality point as values proportional to the sums obtained after the determination of the last characteristic value;
- wherein said values of the quality of the object are determined from the coordinate values of the quality point by a linear equation, wherein constants of the equation are obtained by regression calculation.
Dependencies are inferred from the claim text.