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公开(公告)号：US12079769B2
公开(公告)日：2024-09-03
申请号：US17741110
申请日：2022-05-10
IPC分类号： G06T7/80 , G06F18/21 , G06F18/214 , G06F18/22 , G06N3/04 , G06N3/08 , G06Q10/087 , G06V10/40 , G06V10/46 , G06V10/74 , G06V10/776 , G06V10/82 , G06V20/52 , G06V20/64 , G06V40/10
CPC分类号： G06Q10/087 , G06F18/2148 , G06F18/2193 , G06F18/22 , G06N3/04 , G06N3/08 , G06T7/80 , G06V10/40 , G06V10/46 , G06V10/74 , G06V10/776 , G06V10/82 , G06V20/52 , G06V20/653 , G06V40/10 , G06T2207/30196
摘要： Automated techniques provide for recalibrating cameras in a real space in which puts and takes of items are tracked. The method includes first processing one or more selected images selected from a plurality of sequences of images received from a plurality of cameras calibrated using a set of calibration images that were used to calibrate the cameras previously. The first processing includes a process step to match one or more features from the selected images with features extracted from the set of calibration images using a trained neural network classifier. The features correspond to points located at displays or structures that remain substantially immobile. Camera calibrations can be updated when transform information between features matched meets or exceeds a threshold.
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公开(公告)号：US11361468B2
公开(公告)日：2022-06-14
申请号：US17357867
申请日：2021-06-24
摘要： Systems and techniques are provided for recalibrating cameras in a real space for tracking puts and takes of items by subjects. The method includes first processing one or more selected images selected from a plurality of sequences of images received from a plurality of cameras calibrated using a set of calibration images that were used to calibrate the cameras previously. The first processing includes a process step to extract a plurality of feature descriptors from the images. The first processing also includes a process step to match one or more feature descriptors as extracted from the selected images with feature descriptors extracted from the set of calibration images that were used to calibrate the cameras previously. The feature descriptors correspond to points located at displays or structures that remain substantially immobile.
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公开(公告)号：US11818508B2
公开(公告)日：2023-11-14
申请号：US17681505
申请日：2022-02-25
发明人： Nagasrikanth Kallakuri , Akshay Malhotra , Luis Yoichi Morales Saiki , Tushar Dadlani , Dhananjay Singh
CPC分类号： H04N7/181 , A47F10/02 , G06N20/00 , G06Q20/208 , G06T7/70 , A47F2010/025 , G06T2207/20081 , G06T2207/30232
摘要： Systems and techniques are provided for determining an improved camera coverage plan including a number, a placement, and a pose of cameras that are arranged to track puts and takes of items by subjects in a three-dimensional real space. The method includes receiving an initial camera coverage plan including a three-dimensional map of a real space, an initial number and initial pose of a plurality of cameras and a camera model including characteristics of the cameras. The method can iteratively apply a machine learning process to an objective function of number and poses of cameras, and subject to a set of constraints, obtain an improved camera coverage plan. The improved camera coverage plan is provided to an installer to arrange cameras to track puts and takes of items by subjects in the three-dimensional real space.
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公开(公告)号：US11303853B2
公开(公告)日：2022-04-12
申请号：US17358864
申请日：2021-06-25
发明人： Nagasrikanth Kallakuri , Akshay Malhotra , Luis Yoichi Morales Saiki , Tushar Dadlani , Dhananjay Singh
摘要： Systems and techniques are provided for determining an improved camera coverage plan including a number, a placement, and a pose of cameras that are arranged to track puts and takes of items by subjects in a three-dimensional real space. The method includes receiving an initial camera coverage plan including a three-dimensional map of a real space, an initial number and initial pose of a plurality of cameras and a camera model including characteristics of the cameras. The method can iteratively apply a machine learning process to an objective function of number and poses of cameras, and subject to a set of constraints, obtain an improved camera coverage plan. The improved camera coverage plan is provided to an installer to arrange cameras to track puts and takes of items by subjects in the three-dimensional real space.
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