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公开(公告)号：DE69720630T2
公开(公告)日：2003-11-27
申请号：DE69720630
申请日：1997-09-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: In a pattern recognition apparatus, light from an original on which a pattern to be recognized is depicted is focused by an optical system. The focused image is sampled by a two-dimensional array sensor. The pattern depicted on the original is recognized based on a multiresolution partial image obtained by the sampling. A moving device moves the optical axis of the optical system relative to the original in response to a control signal based on the result of the recognition.
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公开(公告)号：CA2216883C
公开(公告)日：2001-11-27
申请号：CA2216883
申请日：1997-09-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: In a pattern recognition apparatus, light from an original on which a pattern to be recognized is depicted is focused by an optical system. The focused image is sampled by a two-dimensional array sensor. The pattern depicted on the original is recognized based on a multiresolution partial image obtained by the sampling. A moving device moves the optical axis of the optical system relative to the original in response to a control signal based on the result of the recognition.
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公开(公告)号：DE69628083D1
公开(公告)日：2003-06-18
申请号：DE69628083
申请日：1996-03-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: A transformation unit 102 transforms an entered image to multi-resolution space. A quantizer 105 performs vector quantization on a local pattern of an image of a multi-resolution representation. A perspective-order calculating unit 107 extracts a plurality of code words, positions corresponding thereto and/or angle of rotation and/or scale, and the perspective-order relationship of a plurality of these representative vectors, from the quantized image. An algebraic encoder 108 encodes the input image based upon the extracted information. As a result, there are provided an image processing apparatus and method for asymmetric encoding without motion in three dimensions and extraction of a three-dimensional structure. Further, a transformation unit 1103 transforms an entered image to vector field, and a singularity detector 1104 detects a singularity in the transformed image. A transformation encoder 1105 partitions the vector field into areas which include detected feature points, and each area is encoded by functional approximation. As a result, a finite number of feature points can be obtained with ease and an image processing apparatus and method exhibiting strong resistance to the effects of noise are provided.
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公开(公告)号：DE69720630D1
公开(公告)日：2003-05-15
申请号：DE69720630
申请日：1997-09-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: In a pattern recognition apparatus, light from an original on which a pattern to be recognized is depicted is focused by an optical system. The focused image is sampled by a two-dimensional array sensor. The pattern depicted on the original is recognized based on a multiresolution partial image obtained by the sampling. A moving device moves the optical axis of the optical system relative to the original in response to a control signal based on the result of the recognition.
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公开(公告)号：DE69633589T2
公开(公告)日：2005-10-20
申请号：DE69633589
申请日：1996-03-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
IPC: H04N5/232
Abstract: A visual information processing method in a visual information processing apparatus for acquiring and processing visual information includes the steps of successively changing the amount of visual information entered with regard to a desired target position in space, reading image data at each position at which an image is formed and storing the image data in correspondence with the target position in space. The amount of visual information is successively changed by changing the image-forming position corresponding to the target position in space by moving of the optic axis of a wide-angle lens. The visual information is successively altered by zooming or by filtering which relies upon a two-dimensional filter. There are a plurality of target positions in space, visual information at each image-forming position is read out in correspondence with each target position in space, and the information is stored in correspondence with each target position in space. The stored image is displayed at a high resolution without distortion.
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Patent Agency Ranking
公开(公告)号：AT242519T
公开(公告)日：2003-06-15
申请号：AT94103519
申请日：1994-03-08
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI , HATANAKA KATSUNORI , SAKAI KUNIHIRO , OGUCHI TAKAHIRO , YAMANO AKIHIKO , SHIDO SHUNICHI
Abstract: An image information processing apparatus for processing image information includes a total curvature calculating unit, mean curvature calculating unit, a logical product computing unit and a median filter. A total curvature at each pixel of the image information is calculated by the total curvature calculating unit. A mean curvature at each pixel of the image information is calculated by the mean curvature calculating unit. The logical product computing unit executes computation of a logical product of outputs from the total curvature calculating unit and the mean curvature calculating unit. An output from the logical product computing unit is filtered by the median filter.
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公开(公告)号：DE69634221T2
公开(公告)日：2006-05-18
申请号：DE69634221
申请日：1996-03-27
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: A 2D image supplied from an image input unit including a wide view lens is sampled into a discrete form by an array sensor, and then mapped to a multi-resolution space by a 2D filter. The feature of the supplied image is detected, and then the mapped image is transformed to a local pattern about the detected feature, and then the coordinates of the position of the feature and the code word of the local pattern are formed into a set which is then encoded. The code is supplied to each cell of a stochastic automaton. The quantity of visual information is calculated in accordance with the quantity of mutual information between different cells of the stochastic automaton consisting of cells in blocks, the coordinates of the position of the feature and the distance from the feature to the optical axis so as to control the optical axis of the image input unit in such a manner that the quantity of visual information is maximized.
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公开(公告)号：DE69633589D1
公开(公告)日：2004-11-18
申请号：DE69633589
申请日：1996-03-29
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
IPC: H04N5/232
Abstract: A visual information processing method in a visual information processing apparatus for acquiring and processing visual information includes the steps of successively changing the amount of visual information entered with regard to a desired target position in space, reading image data at each position at which an image is formed and storing the image data in correspondence with the target position in space. The amount of visual information is successively changed by changing the image-forming position corresponding to the target position in space by moving of the optic axis of a wide-angle lens. The visual information is successively altered by zooming or by filtering which relies upon a two-dimensional filter. There are a plurality of target positions in space, visual information at each image-forming position is read out in correspondence with each target position in space, and the information is stored in correspondence with each target position in space. The stored image is displayed at a high resolution without distortion.
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公开(公告)号：DE69432772D1
公开(公告)日：2003-07-10
申请号：DE69432772
申请日：1994-03-08
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI , HATANAKA KATSUNORI , SAKAI KUNIHIRO , OGUCHI TAKAHIRO , YAMANO AKIHIKO , SHIDO SHUNICHI
Abstract: An image information processing apparatus for processing image information includes a total curvature calculating unit, mean curvature calculating unit, a logical product computing unit and a median filter. A total curvature at each pixel of the image information is calculated by the total curvature calculating unit. A mean curvature at each pixel of the image information is calculated by the mean curvature calculating unit. The logical product computing unit executes computation of a logical product of outputs from the total curvature calculating unit and the mean curvature calculating unit. An output from the logical product computing unit is filtered by the median filter.
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公开(公告)号：DE69634221D1
公开(公告)日：2005-03-03
申请号：DE69634221
申请日：1996-03-27
Applicant: CANON KK
Inventor： WASHIZAWA TERUYOSHI
Abstract: A 2D image supplied from an image input unit including a wide view lens is sampled into a discrete form by an array sensor, and then mapped to a multi-resolution space by a 2D filter. The feature of the supplied image is detected, and then the mapped image is transformed to a local pattern about the detected feature, and then the coordinates of the position of the feature and the code word of the local pattern are formed into a set which is then encoded. The code is supplied to each cell of a stochastic automaton. The quantity of visual information is calculated in accordance with the quantity of mutual information between different cells of the stochastic automaton consisting of cells in blocks, the coordinates of the position of the feature and the distance from the feature to the optical axis so as to control the optical axis of the image input unit in such a manner that the quantity of visual information is maximized.
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