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公开(公告)号：US11474193B2
公开(公告)日：2022-10-18
申请号：US17116771
申请日：2020-12-09
Applicant: HERE Global B.V.
Inventor： Landis Huffman , Joshua Michael Finken , Amey Aroskar , Sumedh Rasal
Abstract: An apparatus and/or method includes localization of a mobile device. The localization technique is calibrated by prompting the mobile device for a collection of static position images for an image-based localization service, sending static position images to the image-based localization service, receiving, for the static position images, a plurality of localization values from the image-based localization service, calculating a correction for the plurality of localization values, and providing a location for the mobile device based on the correction for the plurality of localization values.
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公开(公告)号：US11989905B2
公开(公告)日：2024-05-21
申请号：US17241487
申请日：2021-04-27
Applicant: HERE GLOBAL B.V.
Inventor： Landis Huffman , Joshua Michael Finken , Amey Aroskar , Sumedh Rasal , Sanjay Kumar Boddhu
CPC classification number: G06T7/70 , G01S19/14 , G06V20/56 , G06V30/1918 , G06V30/2552 , G06T2207/20048 , G06T2207/30241
Abstract: Systems and methods for synchronization are provided. In some aspects, a method for synchronizing an image sensor is provided. The method includes receiving image data captured using an image sensor that is moving along a pathway, and assembling an image sensor trajectory using the image data. The method also includes receiving position data acquired along the pathway using a position sensor, wherein timestamps for the image data and position data are asynchronous, and assembling a position sensor trajectory using the position data. The method further includes generating a spatial transformation that aligns the image sensor trajectory and position sensor trajectory, and synchronizing the image sensor based on the spatial transformation.
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公开(公告)号：US20220179038A1
公开(公告)日：2022-06-09
申请号：US17116771
申请日：2020-12-09
Applicant: HERE Global B.V.
Inventor： Landis Huffman , Joshua Michael Finken , Amey Aroskar , Sumedh Rasal
Abstract: An apparatus and/or method includes localization of a mobile device. The localization technique is calibrated by prompting the mobile device for a collection of static position images for an image-based localization service, sending static position images to the image-based localization service, receiving, for the static position images, a plurality of localization values from the image-based localization service, calculating a correction for the plurality of localization values, and providing a location for the mobile device based on the correction for the plurality of localization values.
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公开(公告)号：US20220122316A1
公开(公告)日：2022-04-21
申请号：US17074452
申请日：2020-10-19
Applicant: HERE Global B.V.
Inventor： Landis Huffman , Josh Finken , Amey Aroskar , Sumedh Rasal
Abstract: An apparatus includes at least one memory, a feature extractor, an image matcher, and a mapper. The memory stores images corresponding to a geographic area, and the images include image descriptors adaptable into a spatial relationship based on positional information. The feature extractor is configured to select a set of neighboring images from the images using a pairing factor. The image matcher is configured to calculate point matches based on the set of neighboring images and the positional information. The mapper is configured to construct a three-dimensional point cloud for at least a portion of the geographic area, from the point matches, using the image descriptors from the set of neighboring images.
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