Method for examining shooting direction of camera apparatus, device thereof and structure for installing sensor
First Claim
1. A test device for examining the shooting direction of a camera apparatus installed on a vehicle, comprising:
- a mounting member;
a camera apparatus attached to a body of a vehicle via said mounting member, and configured to photograph a situation ahead of the vehicle and output a photographed image;
a processing unit for superimposing a specific judgment pattern on a specific position of said photographed image; and
a display device for displaying said photographed image, whereinsaid processing unit is configured to perform the superimposition operation based on a photographed image taken of a test chart placed at a predefined position ahead of the vehicle with a specific reference pattern on the test chart,said display device is configured to display the position of said reference pattern on said photographed image and the position of said judgment pattern in a manner that they are compared with each other,said mounting member is a replaceable member being independent of said camera apparatus wherein the shooting direction of said camera apparatus is determined by the shape of said mounting member, andsaid mounting member is a plate-like member having a tapered shape in cross section along the shooting direction, and a vertical component of the shooting direction of said camera apparatus is determined by said tapered shape.
2 Assignments
0 Petitions
Accused Products
Abstract
In a test method in which an image photographed by a camera apparatus 1 attached to a body of a vehicle is displayed on a display device 17 and an examiner examines compliance or non-compliance of the shooting direction of the camera apparatus 1 by comparing the position of a reference pattern and the position of a judgment pattern on the displayed photographed image, the photographed image is obtained at first by photographing with the camera apparatus 1 a test chart which is placed at a predefined position ahead of the vehicle with the reference pattern drawn on the test chart. Next, the judgment pattern is set at a specific position on the photographed image. Then, the photographed image on which the judgment pattern has been set is displayed on the display device 17.
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Citations
16 Claims
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1. A test device for examining the shooting direction of a camera apparatus installed on a vehicle, comprising:
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a mounting member; a camera apparatus attached to a body of a vehicle via said mounting member, and configured to photograph a situation ahead of the vehicle and output a photographed image; a processing unit for superimposing a specific judgment pattern on a specific position of said photographed image; and a display device for displaying said photographed image, wherein said processing unit is configured to perform the superimposition operation based on a photographed image taken of a test chart placed at a predefined position ahead of the vehicle with a specific reference pattern on the test chart, said display device is configured to display the position of said reference pattern on said photographed image and the position of said judgment pattern in a manner that they are compared with each other, said mounting member is a replaceable member being independent of said camera apparatus wherein the shooting direction of said camera apparatus is determined by the shape of said mounting member, and said mounting member is a plate-like member having a tapered shape in cross section along the shooting direction, and a vertical component of the shooting direction of said camera apparatus is determined by said tapered shape. - View Dependent Claims (2, 3, 4, 5)
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6. A test device for examining the shooting direction of an onboard camera apparatus attached to a body of a vehicle, comprising:
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a camera apparatus attached to the vehicle body and configured to photograph a situation ahead of the vehicle and output a photographed image; and a test unit for examining the shooting direction of said camera apparatus based on a photographed image obtained by photographing with said camera apparatus a test chart placed at a predefined position ahead of the vehicle with a specific reference pattern on the test chart, wherein said test unit is configured to determine the position of said reference pattern on said photographed image, and to judge that the shooting direction of said camera apparatus is proper when the position of said reference pattern is determined to fall within a predetermined proper range defining a range appropriate for the shooting direction of said camera apparatus, and to judge that the shooting direction of said camera apparatus is improper when the position of said reference pattern falls outside said proper range, said test unit is configured to evaluate a correlation of a plurality of specific regions in said photographed image with a previously prepared specific brightness characteristics pattern and, to specify the position of one of said specific regions having the greatest correlation as the position of said reference pattern, and said brightness characteristics pattern has the same brightness characteristics as said reference pattern shown on said photographed image. - View Dependent Claims (7, 8, 12, 13, 14, 15, 16)
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9. A test device for examining the shooting direction of an onboard camera apparatus attached to a body of a vehicle, comprising:
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a camera apparatus attached to the vehicle body and configured to photograph a situation ahead of the vehicle and output a photographed image; a test unit for examining the shooting direction of said camera apparatus based on a photographed image obtained by photographing with said camera apparatus a test chart placed at a predefined position ahead of the vehicle with a specific reference pattern on the test chart; and a mounting member, wherein said test unit is configured to determine the position of said reference pattern on said photographed image, and to judge that the shooting direction of said camera apparatus is proper when the position of said reference pattern is determined to fall within a predetermined proper range defining a range appropriate for the shooting direction of said camera apparatus, and to judge that the shooting direction of said camera apparatus is improper when the position of said reference pattern falls outside said proper range, said camera apparatus is attached to the vehicle body via said mounting member, and said test unit is configured to output instructional information concerning adjustment of the mounting of said camera apparatus according to the amount of a deviation of said reference pattern relative to said proper range when the position of said reference pattern deviates from said proper range. - View Dependent Claims (10, 11)
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Specification