IP Library Granted Patent US 7,370,975
Granted Patent B2
US 7,370,975 · App. 11/287,751 · Granted May 13, 2008

Image processing apparatus

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Quick Facts
Patent No.
US 7,370,975
App. No.
11/287,751
Granted
May 13, 2008
Kind
B2
Abstract

An image processing apparatus which includes: an imaging device; a reference luminance property storage device that stores a predetermined reference luminance property; a luminance property calculating device that calculates a luminance property of the imaging device from an image obtained by the imaging device; a comparing device that compares the reference luminance property and the luminance property; a displacement determining device that determines whether or not the luminance property has relative displacement with respect to the reference luminance property based on a comparison result of the comparing device; and a luminance property correcting device that corrects the luminance property, wherein, when the luminance property is determined by the displacement determining device to have relative displacement with respect to the reference luminance property, the luminance property correcting device corrects the luminance property so as to become equivalent to the reference luminance property.

Claims (12)

1. An image processing apparatus comprising:

an imaging device;

a reference luminance property storage device that stores a predetermined reference luminance property;

a luminance property calculating device that calculates a luminance property of the imaging device from an image obtained by the imaging device;

a comparing device that compares the reference luminance property stored in the reference luminance property storage device and the luminance property calculated by the luminance property calculating device;

a displacement determining device that determines whether or not the luminance property of the imaging device has relative displacement with respect to the reference luminance property based on a comparison result of the comparing device; and

a luminance property correcting device that makes a correction of the luminance property of the imaging device,

the luminance property correcting device is configured to correct the luminance property of the imaging device so as to become equivalent to the reference luminance property when the luminance property of the imaging device determined by the displacement determining device has relative displacement with respect to the reference luminance property.

2. The image processing apparatus according to claim 1 , further comprising:

a correction possibility determining device that determines whether or not it is possible to correct the luminance property of the imaging device by the luminance property correcting device based on a determination result by the displacement determining device; and

an informing device that outputs an alarm when the correction is determined by the correction possibility determining device to be impossible.

3. The image processing apparatus according to claim 1 , wherein the predetermined reference luminance property includes a gray scale bar disposed on the image obtained by the imaging device.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2024
From: ARRIVER SOFTWARE AB
To: QUALCOMM AUTO LTD.
Reel/Frame 069171/0233 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2022
From: VEONEER SWEDEN AB
To: ARRIVER SOFTWARE AB
Reel/Frame 059596/0826 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2021
From: HONDA MOTOR CO., LTD
To: VEONEER SWEDEN AB
Reel/Frame 057336/0220 →