System and method for generating a bird's eye view map
AssigneeGM Global Technology Operations LLC
InventorsShuqing Zeng, Fan Bai, Liangjun Zhang, Cem U. Saraydar
Life of this patent
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Abstract
A geo-hashed BEVM is advantageously created employing crowd-sourced monocular images in coordination with an existing electronic map, e.g., Open Street Map (OSM) in one embodiment. The electronic representation of the bird's eye view map (BEVM) may be leveraged to produce an extended lane semantics output, and thus an on-vehicle electronic map may be dynamically updated to account for present circumstances, whether permanent, semi-permanent, or temporal.
Claims20
A system for generating a digital street map that is representative of a geographical area, the system comprising:
- a controller, the controller in communication with a plurality of vehicles having digital cameras and Global Navigation Satellite System (GNSS) sensors;
- the controller in communication with a memory device containing executable code, the executable code including a bird's eye view (BEV) mapping routine, the BEV mapping routine including the following steps:
- capture, for a geographical area, a plurality of images and a plurality of corresponding locations via the plurality of vehicles having digital cameras and GNSS sensors;
- extract a plurality of anchor points from the plurality of images;
- estimate a pose of each of the plurality of images based upon the plurality of anchor points from the plurality of images;
- aggregate and encode the pose of each of the plurality of images into an electronic map to generate a customized BEV map (BEVM) portion for the geographical area;
- and
- capture the customized BEVM portion in the memory device.
A method for generating a digital street map that is representative of a geographical area, the method comprising:
- capturing, via a controller, a plurality of images and a plurality of corresponding locations for a geographical area via a plurality of vehicles having digital cameras and Global Navigation Satellite System (GNSS) sensors in a memory device;
- extracting a plurality of anchor points from the plurality of images;
- estimating a pose of each of the plurality of images based upon the plurality of anchor points from the plurality of images;
- aggregating and encoding, via a bird's eye view (BEV) mapping routine, the pose of each of the plurality of images into an electronic map;
- generating a customized BEV map (BEVM) portion for the geographical area based upon the electronic map;
- and
- storing the customized BEVM portion in the memory device.
A system for generating a digital street map that is representative of a geographical area, the system comprising:
- a controller, the controller in communication with a plurality of vehicles having digital cameras and Global Navigation Satellite System (GNSS) sensors;
- the controller in communication with a cloud-based memory device containing executable code, the executable code including a bird's eye view (BEV) mapping routine, the BEV mapping routine including the following actions:
- capture, for a geographical area, a plurality of images and a plurality of corresponding locations via the plurality of vehicles having digital cameras and GNSS sensors;
- extract a plurality of anchor points from the plurality of images;
- estimate a pose of each of the plurality of images based upon the plurality of anchor points from the plurality of images;
- aggregate and encode the pose of each of the plurality of images into an electronic map;
- generate a customized BEV map (BEVM) portion for the geographical area based upon the electronic map;
- and
- store the customized BEVM portion for the geographical area in the cloud-based memory device.
Dependencies are inferred from the claim text.