SYSTEM AND METHOD FOR CORRECTING ERROR OF CAMERA

• US 20180075585A1
• Filed: 06/20/2017
• Published: 03/15/2018
• Est. Priority Date: 09/09/2016
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: BYEON, Myung Suk
• Granted Patent: US 10,453,186 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: B60R 2300/207 using multi-purpose displays, e.g. camera image and navigation or video on same display
• CPC Class Codes: B60R 2300/30 characterised by the type of image processing
• CPC Class Codes: G06T 2207/30256 Lane; Road marking
• CPC Class Codes: G06T 5/70 Denoising; Smoothing
• CPC Class Codes: G06T 7/33 using feature-based methods
• CPC Class Codes: G06V 10/44 Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
• CPC Class Codes: G06V 10/462 Salient features, e.g. scale invariant feature transforms [SIFT]
• CPC Class Codes: G06V 10/98 Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
• CPC Class Codes: G06V 20/56 exterior to a vehicle by using sensors mounted on the vehicle
• CPC Class Codes: H04N 23/60 Control of cameras or camera modules
• CPC Class Codes: H04N 23/80 Camera processing pipelines; Components thereof
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A system is provided for correcting an error of a camera for a camera monitoring system (CMS), including a camera attached to a side of a vehicle, a memory configured to store processor-executable instructions for correcting an error of an image captured by the camera, and a processor configured with the processor-executable instructions to detect a correction point is the image captured by the camera, generate a correction parameter based on a resultant value of a comparison between the detected correction point and a preset correction point, and correct the error of the image based on the generated correction parameter.

Claims

1. A system, comprising:

a camera attached to a side of a vehicle;

a memory configured to store processor-executable instructions for correcting an error of an image captured by the camera; and

a processor configured with the processor-executable instructions to;

detect a correction point in the image captured by the camera;

generate a correction parameter based on a resultant value of a comparison between the detected correction point and a preset correction point; and

correct the error of the image based on the generated correction parameter.

2. The system of claim 1, wherein the processor is further configured with the processor-executable instructions to:

extract a contour line from the image; and

detect the correction point in the image from which the contour line is extracted.

3. The system of claim 2, wherein the processor is further configured with the processor-executable instructions to:

detect a plurality of lines in the image from which the contour line is extracted;

detect a vanishing point at which the plurality of lines intersect; and

move the detected vanishing point to a reference vanishing point to generate the correction parameter, and

wherein the correction point is the vanishing point.

4. The system of claim 2, wherein the processor is further configured with the processor-executable instructions to:

detect a plurality of feature points corresponding to the vehicle in the image from which the contour line is extracted; and

move the plurality of feature points to reference feature points to generate the correction parameter, and

wherein the correction points are the plurality of feature points of the vehicle.

5. The system of claim 1, wherein the processor is further configured with the processor-executable instructions to:

generate the correction parameter when the vehicle is driven or stopped; and

update a previously stored correction parameter to the generated correction parameter.

6. A method, comprising:

receiving an image captured by a camera attached to a side of a vehicle;

detecting a correction point in the image;

comparing the detected correction point and a preset correction point;

generating a correction parameter based on a resultant value of the comparison; and

correcting an error of the image based on the generated correction parameter.

7. The method of claim 6, further comprising extracting a contour line from the image, wherein the detecting of the correction point comprises detecting the correction point in the image from which the contour line is extracted.

8. The method of claim 7, wherein the detecting of the correction point in the image further comprises:

detecting a plurality of lines in the image from which the contour line is extracted;

detecting a vanishing point at which the plurality of lines intersect; and

setting the detected vanishing point as the correction point,

wherein the comparing of the detected correction point and the preset correction point and the generating of the correction parameter based on the resultant value of the comparison comprise moving the detected vanishing point to a reference vanishing point to generate the correction parameter.

9. The method of claim 7, wherein the detecting of the correction point in the image further comprises:

detecting a plurality of feature points corresponding to the vehicle in the image from which the contour line is extracted; and

setting the plurality of feature points as the correction points,

wherein the comparing of the detected correction point and the preset correction point and the generating of the correction parameter based on the resultant value of the comparison comprise moving the detected feature points to reference feature points to generate the correction parameter.

10. The method of claim 6, wherein the generating of the correction parameter comprises generating the correction parameter when the vehicle is driven or stopped and updating a previously stored correction parameter to the generated correction parameter.