Determining lane position of a partially obscured target vehicle

1. A system for navigating a host vehicle, the system comprising:

at least one processing device comprising circuitry and a memory, wherein the memory includes instructions that when executed by the circuitry cause the at least one processing device to:

receive a plurality of images acquired by an image capture device, the plurality of images being representative of an environment of the host vehicle;

analyze at least one of the plurality of images to identify a first object in the environment of the host vehicle, wherein the first object and a road on which the first object is located are at least partially obscured by a second object in the environment of the host vehicle, the road including a plurality of lanes;

determine scale change information for the first object based on a size of a representation of the first object in at least two of the plurality of images;

determine, based on the determined scale change information for the first object, a lane position of the first object, the lane position indicating which lane of the plurality of lanes the first object is located on; and

determine a navigational action for the host vehicle based on the determined lane position of the first object.

2. The system of claim 1 , wherein the scale change information for the first object includes a change in the size of the representation of the first object relative to a time period.

3. The system of claim 1 , wherein determining the lane position of the first object further includes comparing the scale change information to an expected scale change associated with one or more lanes of the road.

4. The system of claim 3 , wherein the scale change information includes configuration information related to a lane structure of the road.

5. The system of claim 1 , wherein the navigational action includes causing at least one adjustment of a navigational actuator of the host vehicle.

6. The system of claim 5 , wherein the navigational actuator includes at least one of a steering mechanism, a brake, or an accelerator of the host vehicle.

7. The system of claim 1 , wherein the first object includes a first target vehicle.

8. The system of claim 1 , wherein the second object includes a second target vehicle.

9. The system of claim 1 , wherein the second object at least partially obscures a lower portion of the first object.

10. The system of claim 1 , wherein the first object includes a target vehicle, and wheels of the vehicle are obscured from view and not represented in the plurality of images.

11. The system of claim 1 , wherein the first object includes a target vehicle, and wherein only an upper portion of the target vehicle is unobscured and represented in the plurality of images.

12. A method for navigating a host vehicle, the method comprising:

receiving a plurality of images acquired by an image capture device, the plurality of images being representative of an environment of the host vehicle;

analyzing at least one of the plurality of images to identify a first object in the environment of the host vehicle, wherein the first object and a road on which the first object is located are at least partially obscured by a second object in the environment of the host vehicle, the road including a plurality of lanes;

determining scale change information for the first object based on a size of a representation of the first object in at least two of the plurality of images;

determining, based on the determined scale change information for the first object, a lane position of the first object, the lane position indicating which lane of the plurality of lanes the first object is located on; and

determining a navigational action for the host vehicle based on the determined lane position of the first object.

13. The method of claim 12 , wherein the scale change information for the first object includes a change in the size of the representation of the first object relative to a time period.

14. The method of claim 12 , wherein determining the lane position of the first object further includes comparing the scale change information to an expected scale change associated with one or more lanes of the road.

15. The method of claim 14 , wherein the scale change information includes configuration information related to a lane structure of the road.

16. The method of claim 12 , wherein the navigational action includes causing at least one adjustment of a navigational actuator of the host vehicle.

17. The method of claim 16 , wherein the navigational actuator includes at least one of a steering mechanism, a brake, or an accelerator of the host vehicle.

18. The method of claim 12 , wherein the first object includes a first target vehicle.

19. The method of claim 12 , wherein the second object includes a second target vehicle.

20. The method of claim 12 , wherein the second object at least partially obscures a lower portion of the first object.

21. A non-transitory computer readable medium containing instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

receiving a plurality of images acquired by an image capture device, the plurality of images being representative of an environment of a host vehicle;

analyzing at least one of the plurality of images to identify a first object in the environment of the host vehicle, wherein the first object and a road on which the first object is located are at least partially obscured by a second object in the environment of the host vehicle, the road including a plurality of lanes;

determining scale change information for the first object based on a size of a representation of the first object in at least two of the plurality of images;

determining, based on the determined scale change information for the first object, a lane position of the first object, the lane position indicating which lane of the plurality of lanes the first object is located on; and

determining a navigational action for the host vehicle based on the determined lane position of the first object.