STEREO PICTURE GENERATING DEVICE, AND STEREO PICTURE GENERATING METHOD
First Claim
1. A stereo picture generating device comprising:
- a feature point extracting unit that extracts a plurality of feature points from a first picture generated by photographing an object from a first position;
a tracking unit that calculates coordinate of each point on a second picture generated by photographing the object from a second position different from the first position corresponding to each of the plurality of feature points, wherein each of the plurality of the feature points and the corresponding point on the second picture correspond to a same point on the object;
a parameter determining unit that determines plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture by using the plane projective transformation coefficients, and the corresponding point on the second picture and a weighting term having a value depending on the rotational transfer component; and
a transforming unit that plane-projective-transforms the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture.
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Accused Products
Abstract
A stereo picture generating device includes: a feature point extracting unit that extracts feature points from a first picture; a tracking unit that calculates coordinate of each point on a second picture corresponding to each of the feature points; a parameter determining unit that determines plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture, and the corresponding point on the second picture, and a weighting term having a value depending on the rotational transfer component; and a transforming unit that plane-projective-transforms the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture.
187 Citations
7 Claims
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1. A stereo picture generating device comprising:
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a feature point extracting unit that extracts a plurality of feature points from a first picture generated by photographing an object from a first position; a tracking unit that calculates coordinate of each point on a second picture generated by photographing the object from a second position different from the first position corresponding to each of the plurality of feature points, wherein each of the plurality of the feature points and the corresponding point on the second picture correspond to a same point on the object; a parameter determining unit that determines plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture by using the plane projective transformation coefficients, and the corresponding point on the second picture and a weighting term having a value depending on the rotational transfer component; and a transforming unit that plane-projective-transforms the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture. - View Dependent Claims (2, 3, 4)
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5. A stereo picture generating method comprising:
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extracting a plurality of feature points from a first picture generated by photographing an object from a first position; calculating coordinate of each point on a second picture generated by photographing the object from a second position different from the first position corresponding to each of the plurality of feature points, wherein each of the plurality of the feature points and the corresponding point on the second picture correspond to a same point on the object; determining plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture by using the plane projective transformation coefficients, and the corresponding point on the second picture and a weighting term having a value depending on the rotational transfer component; and plane-projective-transforming the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture.
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6. A computer readable recording medium recording a computer program for generating a stereo picture, the program causing a computer to execute:
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extracting a plurality of feature points from a first picture generated by photographing an object from a first position; calculating coordinate of each point on a second picture generated by photographing the object from a second position different from the first position corresponding to each of the plurality of feature points, wherein each of the plurality of the feature points and the corresponding point on the second picture correspond to a same point on the object; determining plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture by using the plane projective transformation coefficients, and the corresponding point on the second picture and a weighting term having a value depending on the rotational transfer component; and plane-projective-transforming the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture.
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7. A stereo picture generating device comprising:
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at least one camera for photographing an object from a first position to generate a first picture, and photographing the object from a second position different from the first position to generate a second picture; and a processor adapted to extract a plurality of feature points from the first picture, calculate coordinate of each point on a second picture generated by photographing the object from a second position different from the first position corresponding to each of the plurality of feature points, wherein each of the plurality of the feature points and the corresponding point on the second picture correspond to a same point on the object, determine plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture by using the plane projective transformation coefficients, and the corresponding point on the second picture and a weighting term having a value depending on the rotational transfer component; and plane-projective-transform the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the second picture as a stereo picture.
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Specification