Stereo camera device and rectification method therefor
AssigneeLG Innotek Co., Ltd.
InventorDong Min Nam
Life of this patent
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Abstract
A stereo camera device according to one embodiment of the present invention comprises: a light pattern projection unit for projecting a predetermined pattern; a first camera unit for photographing the pattern; a second camera for photographing the pattern; and a control unit for controlling the light pattern projection of the light pattern projection unit, and determining whether to perform rectification between a first image and a second image by analyzing the first image photographed by the first camera unit and the second image photographed by the second camera unit.
Claims6
A stereo camera device mounted on a vehicle, the stereo device comprising:
- a light pattern projector configured to project a predetermined light pattern in front thereof;
- a first camera configured to photograph the light pattern projected from the light pattern projector;
- a second camera configured to photograph the light pattern projected from the light pattern projector;
- and
- a controller configured to control a light pattern projection of the light pattern projector and determine whether to perform rectification between a first image and a second image by analyzing the first image photographed by the first camera and the second image photographed by the second camera,
- wherein the first camera and the second camera are aligned to be spaced a predetermined distance from each other on a same row,
- wherein the light pattern projector is located between the first camera and the second camera on the same row as the first camera and the second camera,
- wherein the controller requests the light pattern projection to the light pattern projector after receiving an impact sensing signal from an electronic control unit of the vehicle,
- wherein the light pattern projector projects the light pattern after the vehicle stops, and
- wherein the controller transmits a rectification request when a row alignment between the first camera and the second camera deviates from the first image and the second image.
A rectification method, which is a rectification method for a stereo camera device mounted on a vehicle, the method comprising:
- receiving an impact sensing signal from an electronic control unit of the vehicle;
- requesting a light pattern projection to a light pattern projector;
- projecting a light pattern using the light pattern projector in front thereof after the vehicle stops;
- photographing the projected light pattern using a first camera;
- photographing the projected light pattern using a second camera;
- analyzing a first image photographed by the first camera and a second image photographed by the second camera;
- and
- performing rectification when distortion occurs between the first image and the second image,
- wherein the first camera and the second camera are aligned to be spaced a predetermined distance from each other on a same row,
- wherein the light pattern projector is located between the first camera and the second camera on the same row as the first camera and the second camera, and
- wherein the rectification is performed when a row alignment between the first camera and the second camera deviates from the first image and the second image.
Dependencies are inferred from the claim text.