METHOD AND APPARATUS FOR PROVIDING A LOCATION DATA ERROR MAP

• US 20170074659A1
• Filed: 09/16/2015
• Published: 03/16/2017
• Est. Priority Date: 09/16/2015
• Status: Active Grant

• Current Assignee: HERE Global B.V. (HERE Holding Corporation)
• Original Assignee: HERE Global B.V. (HERE Holding Corporation)
• Inventors: THOMPSON, Joshua, GIURGIU, Gavril, JANG, Dongwook
• Granted Patent: US 9,684,081 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/28 with correlation of data from several navigational instruments
• CPC Class Codes: G01C 21/30 Map- or contour-matching
• CPC Class Codes: G01C 21/3878 Hierarchical structures, e.g. layering
• CPC Class Codes: G01S 19/071 DGPS corrections
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 19/393 Trajectory determination or predictive tracking, e.g. Kalman filtering
• CPC Class Codes: G01S 19/396 Determining accuracy or reliability of position or pseudorange measurements
• CPC Class Codes: G01S 19/40 Correcting position, velocity or attitude
• CPC Class Codes: G01S 19/41 Differential correction, e.g. DGPS [differential GPS]
• CPC Class Codes: G01S 19/42 Determining position
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system

Abstract

An approach is provided for generating location data error maps. The approach involves determining location data error information associated with at least one set of location data. The approach also involves causing, at least in part, an encoding of the location data error information as a function of a position parameter. The approach further involves causing, at least in part, a generation of at least one location data error map based, at least in part, on the encoding.

Claims

1. A method comprising:

determining location data error information associated with at least one set of location data;

causing, at least in part, an encoding of the location data error information as a function of a position parameter; and

causing, at least in part, a generation of at least one location data error map based, at least in part, on the encoding.

2. A method of claim 1, further comprising:

causing, at least in part, a creation of at least one first layer of the at least one location data error map,

wherein the least one layer presents location data error information that is averaged in time and associated with a baseline environmental condition.

3. A method of claim 1, further comprising:

initiating the encoding of the location data error as a further function of one or more other contextual parameters.

4. A method of claim 3, further comprising:

causing, at least in part, a creation of at least one second layer of the at least one location data error map,

wherein the at least one second layer presents information for transforming the location data error information based, at least in part, on the further function of the one or more contextual parameters.

5. A method of claim 3, wherein the one or more contextual parameters include, at least in part, a temporal parameter, an environmental parameter, a location satellite visibility parameter, or a combination thereof.

6. A method of claim 1, further comprising:

determining the location data error information with respect to at least one type, at least one quality, or a combination thereof of one or more location sensing devices that collected the location data.

7. A method of claim 1, wherein the determining the location data error information comprises at least one of:

comparing of the location data to a true trajectory inferred based, at least in part, on a path-based map matching of the location data to determine the location data error information;

comparing the location data against a true trajectory determined based, at least in part, one or more ground truth data collection drives performed over one or more routes associated with the location data to determine the location data error information;

processing and/or facilitating a processing of imagery data of one or more locations associated with the location data to identify one or more potential obstructions to location sensing for determining the location data error information; and

processing and/or facilitating a processing of mapping data for one or more locations associated with the location data to determine the one or more potential obstructions to location sensing for determining the location data error information.

8. A method of claim 7, further comprising:

determining the one or more potential obstructions with respect to one or more location positioning satellites.

9. A method of claim 1, wherein the encoding of the location data error information as the function of the position parameter is with respect to one or more road networks of at least one geographic area associated with the location data.

10. A method of claim 1, further comprising:

determining at least one location sensing device to use, to recommend, or a combination thereof based, at least in part, on the at least one location data error map.

11. An apparatus comprising:

at least one processor; and

at least one memory including computer program code for one or more programs,

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following;

determine location data error information associated with at least one set of location data;

cause, at least in part, an encoding of the location data error information as a function of a position parameter; and

cause, at least in part, a generation of at least one location data error map based, at least in part, on the encoding.

12. An apparatus of claim 11, wherein the apparatus is further caused to:

cause, at least in part, a creation of at least one first layer of the at least one location data error map,

wherein the least one layer presents location data error information that is averaged in time and associated with a baseline environmental condition.

13. An apparatus of claim 11, wherein the apparatus is further caused to:

initiate the encoding of the location data error as a further function of one or more other contextual parameters.

14. An apparatus of claim 13, wherein the apparatus is further caused to:

cause, at least in part, a creation of at least one second layer of the at least one location data error map,

wherein the at least one second layer presents information for transforming the location data error information based, at least in part, on the further function of the one or more contextual parameters.

15. An apparatus of claim 13, wherein the one or more contextual parameters include, at least in part, a temporal parameter, an environmental parameter, a location satellite visibility parameter, or a combination thereof.

16. An apparatus of claim 11, wherein the apparatus is further caused to:

determine the location data error information with respect to at least one type, at least one quality, or a combination thereof of one or more location sensing devices that collected the location data.

17. An apparatus of claim 11, wherein the determining the location data error information cause the apparatus to at least one of:

compare of the location data to a true trajectory inferred based, at least in part, on a path-based map matching of the location data to determine the location data error information;

compare the location data against a true trajectory determined based, at least in part, one or more ground truth data collection drives performed over one or more routes associated with the location data to determine the location data error information;

process and/or facilitate a processing of imagery data of one or more locations associated with the location data to identify one or more potential obstructions to location sensing for determining the location data error information; and

process and/or facilitate a processing of mapping data for one or more locations associated with the location data to determine the one or more potential obstructions to location sensing for determining the location data error information.

18. A computer-readable storage medium carrying one or more sequences of one or more instructions which, when executed by one or more processors, cause an apparatus to perform:

determining location data error information associated with at least one set of location data;

causing, at least in part, an encoding of the location data error information as a function of a position parameter; and

causing, at least in part, a generation of at least one location data error map based, at least in part, on the encoding.

19. A computer-readable storage medium of claim 18, wherein the apparatus is further caused to perform:

causing, at least in part, a creation of at least one first layer of the at least one location data error map,

wherein the least one layer presents location data error information that is averaged in time and associated with a baseline environmental condition.

20. A computer-readable storage medium of claim 18, wherein the apparatus is further caused to perform:

initiating the encoding of the location data error as a further function of one or more other contextual parameters; and

causing, at least in part, a creation of at least one second layer of the at least one location data error map,

wherein the at least one second layer presents information for transforming the location data error information based, at least in part, on the further function of the one or more contextual parameters.

21-48. -48. (canceled)