Method and device for detecting an interfering object in a camera image
First Claim
1. A method for detecting an interfering object in at least one camera image of a camera image sequence, comprising:
- reading in a first pixel data value at a predetermined position in a first camera image obtained at a first point in time, a second pixel data value at the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value at the predetermined position in a third camera image obtained at a third point in time after the second point in time;
ascertaining (i) a reference value on the basis of the second pixel data value and (ii) a comparison value on the basis of at least one of the first pixel data value and the third pixel data value; and
detecting the presence of the interfering object at the predetermined position if the reference value is in a predefined relationship with the comparison value.
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Accused Products
Abstract
A method for detecting an interfering object in a camera image of a camera image sequence includes: reading in a first pixel data value of a predetermined position in a first camera image obtained at a first point in time, a second pixel data value of the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value of the predetermined position in a third camera image obtained at a third point in time after the second point in time; ascertaining a reference value on the basis of the second pixel data value and a comparison value on the basis of the first pixel data value and/or the third pixel data value; and detecting the interfering object at the predetermined position when the reference value is in a predefined relationship with the comparison value.
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Citations
16 Claims
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1. A method for detecting an interfering object in at least one camera image of a camera image sequence, comprising:
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reading in a first pixel data value at a predetermined position in a first camera image obtained at a first point in time, a second pixel data value at the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value at the predetermined position in a third camera image obtained at a third point in time after the second point in time; ascertaining (i) a reference value on the basis of the second pixel data value and (ii) a comparison value on the basis of at least one of the first pixel data value and the third pixel data value; and detecting the presence of the interfering object at the predetermined position if the reference value is in a predefined relationship with the comparison value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for eliminating an interfering object in a camera image sequence, comprising:
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detecting an interfering object in at least one camera image of a camera image sequence by; reading in a first pixel data value at a predetermined position in a first camera image obtained at a first point in time, a second pixel data value at the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value at the predetermined position in a third camera image obtained at a third point in time after the second point in time; ascertaining (i) a reference value on the basis of the second pixel data value and (ii) a comparison value on the basis of at least one of the first pixel data value and the third pixel data value; and detecting the presence of the interfering object at the predetermined position if the reference value is in a predefined relationship with the comparison value; and replacing the second pixel data value at the predetermined position in the second camera image with a pixel data value which is in a predetermined relationship with at least one of the first pixel data value and the third pixel data value.
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15. A system for detecting an interfering object in at least one camera image of a camera image sequence, comprising:
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a device configured to read in a first pixel data value at a predetermined position in a first camera image obtained at a first point in time, a second pixel data value at the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value at the predetermined position in a third camera image obtained at a third point in time after the second point in time; a device configured to ascertain (i) a reference value on the basis of the second pixel data value and (ii) a comparison value on the basis of at least one of the first pixel data value and the third pixel data value; and a device configured to detect the presence of the interfering object at the predetermined position if the reference value is in a predefined relationship with the comparison value.
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16. A non-transitory computer-readable data storage device storing a computer program having program codes which, when executed on a computer, perform a method for detecting an interfering object in at least one camera image of a camera image sequence, the method comprising:
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reading in a first pixel data value at a predetermined position in a first camera image obtained at a first point in time, a second pixel data value at the predetermined position in a second camera image obtained at a second point in time after the first point in time, and a third pixel data value at the predetermined position in a third camera image obtained at a third point in time after the second point in time; ascertaining (i) a reference value on the basis of the second pixel data value and (ii) a comparison value on the basis of at least one of the first pixel data value and the third pixel data value; and detecting the presence of the interfering object at the predetermined position if the reference value is in a predefined relationship with the comparison value.
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Specification