Target marking for secure logo validation process
First Claim
Patent Images
1. A method comprising:
- acquiring via a vehicle wheel alignment system an image of a wheel alignment target,wherein the wheel alignment target is mounted in association with a wheel of a vehicle, and includes a validation logo and a plurality of target reference points having known relative positions, the validation logo being used for recognition by the vehicle wheel alignment system and determination of authenticity of the validation logo by the vehicle wheel alignment system, and the plurality of target reference points being used to perform wheel alignment on the basis of observation of the plurality of target reference points having the known relative positions;
determining, on the basis of the positions of the target reference points in the acquired image of the wheel alignment target, a projective transformation relating the image of the wheel alignment target to a known orientation;
performing the determined projective transformation to facilitate comparison of the image of the wheel alignment target and the reference validation logo;
identifying the validation logo within the image of the wheel alignment target based on the performed projective transformation;
comparing the identified validation logo with a reference validation logo;
computing a similarity metric based on a result of a comparison between the identified validation logo and the reference validation logo;
based on the computed similarity metric, enabling or disabling the vehicle wheel alignment system; and
upon enabling the wheel alignment system, computing at least one measurement of the vehicle based on an image of the wheel alignment target including the validation logo acquired via a same image sensor of the vehicle wheel alignment system used to acquire the image used to identify the validation logo.
1 Assignment
0 Petitions
Accused Products
Abstract
The instant application describes a method for acquiring via a vehicle wheel alignment system an image of a target including a validation logo, the validation logo being used for recognition by the vehicle wheel alignment system and determination of authenticity of the validation logo by the vehicle wheel alignment system; identifying the validation logo within the image of the target; comparing the identified validation logo with a reference validation logo; computing a similarity metric based on a result of a comparison between the identified validation logo and the reference validation logo; and based on the computed similarity metric, enabling or disabling the vehicle wheel alignment system.
12 Citations
31 Claims
-
1. A method comprising:
-
acquiring via a vehicle wheel alignment system an image of a wheel alignment target, wherein the wheel alignment target is mounted in association with a wheel of a vehicle, and includes a validation logo and a plurality of target reference points having known relative positions, the validation logo being used for recognition by the vehicle wheel alignment system and determination of authenticity of the validation logo by the vehicle wheel alignment system, and the plurality of target reference points being used to perform wheel alignment on the basis of observation of the plurality of target reference points having the known relative positions; determining, on the basis of the positions of the target reference points in the acquired image of the wheel alignment target, a projective transformation relating the image of the wheel alignment target to a known orientation; performing the determined projective transformation to facilitate comparison of the image of the wheel alignment target and the reference validation logo; identifying the validation logo within the image of the wheel alignment target based on the performed projective transformation; comparing the identified validation logo with a reference validation logo; computing a similarity metric based on a result of a comparison between the identified validation logo and the reference validation logo; based on the computed similarity metric, enabling or disabling the vehicle wheel alignment system; and upon enabling the wheel alignment system, computing at least one measurement of the vehicle based on an image of the wheel alignment target including the validation logo acquired via a same image sensor of the vehicle wheel alignment system used to acquire the image used to identify the validation logo. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A wheel alignment system comprising:
-
at least one processor; and a memory communicatively coupled to the at least one processor and storing executable instructions, wherein execution of the executable instructions by the at least one processor causes the at least one processor to perform functions to; acquire an image of a wheel alignment target, mounted in association with a wheel of a vehicle, including a validation logo and a plurality of target reference points having known relative positions, the validation logo being used for recognition by the vehicle wheel alignment system and determination of authenticity of the validation logo by the vehicle wheel alignment system, and the plurality of target reference points being used to perform wheel alignment on the basis of observation of the plurality of target reference points having the known relative positions; determine, on the basis of the positions of the target reference points in the acquired image of the wheel alignment target, a projective transformation relating the image of the wheel alignment target to a known orientation; perform the determined projective transformation to facilitate comparison of the image of the wheel alignment target and the reference validation logo; identify the validation logo within the image of the wheel alignment target based on the performed projective transformation; compare the identified validation logo with a reference validation logo; compute a similarity metric based on a result of a comparison between the identified validation logo and the reference validation logo; based on the computed similarity metric, enable or disable the vehicle wheel alignment system; and upon enabling the wheel alignment system, compute at least one measurement of the vehicle based on an image of the wheel alignment target including the validation logo acquired via a same image sensor of the vehicle wheel alignment system used to acquire the image used to identify the validation logo. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method comprising:
-
acquiring via a vehicle wheel alignment system an image of a wheel alignment target, mounted in association with a wheel of a vehicle, used for aligning a vehicle, wherein the wheel alignment target includes a validation logo and a plurality of target reference points having known relative positions and used to perform wheel alignment on the basis of observation of the plurality of target reference points having the known relative positions; determining, on the basis of the positions of the target reference points in the acquired image of the wheel alignment target, a projective transformation relating the image of the wheel alignment target to a known orientation; performing the determined projective transformation to facilitate comparison of the image of the wheel alignment target and the reference validation logo; identifying the validation logo within the image of the wheel alignment target based on the performed projective transformation; determining whether the validation logo is present within the image of the wheel alignment target, the validation logo being used for recognition by the vehicle wheel alignment system and determination of a source of origin of the vehicle wheel alignment system; based on the determination result, enabling or disabling the vehicle wheel alignment system; and upon enabling the wheel alignment system, computing at least one measurement of the vehicle based on an image of the wheel alignment target including the validation logo acquired via a same image sensor of the vehicle wheel alignment system used to acquire the image used to determine whether the validation logo is present. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification