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Multi-area monitoring system from single cctv having a camera quadratic curved surface mirror structure and it, and unwrapping method for the same

A quadratic surface, curved mirror technology, applied in the parts of TV systems, closed-circuit TV systems, mirrors, etc., can solve problems such as image quality degradation, and achieve the effect of enhanced practicability

Active Publication Date: 2012-03-07
KOREA EXPRESSWAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, interpolation is required to calculate the value of the points in the empty space, so that after the correction of the distorted image, the quality of the image will be reduced

Method used

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  • Multi-area monitoring system from single cctv having a camera quadratic curved surface mirror structure and it, and unwrapping method for the same
  • Multi-area monitoring system from single cctv having a camera quadratic curved surface mirror structure and it, and unwrapping method for the same
  • Multi-area monitoring system from single cctv having a camera quadratic curved surface mirror structure and it, and unwrapping method for the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0039] Such as figure 2 As shown, the camera curved mirror structure according to the first embodiment of the present invention includes: a camera quadric mirror 101 , a camera unit 102 and an image processing unit 104 .

[0040] The camera quadric mirror 101 reflects forwardly a bi-directional image incident at a long distance (eg 2 km or more) on the road. The camera quadric mirror 101 collects more distance images than close distance images due to the internal curved mirror structure being partially removed and reattached.

[0041] The camera unit 102 collects the incident bi-directional image reflected by the camera curved mirror 101 at a long distance (for example, 2 km or more) on the road. The camera unit 102 also converts the image into an electronic image signal.

[0042] The image processing unit 104 performs image signal processing on the long-distance two-way image captured by the camera unit 102 . The image processing unit 104 also implements expansion by corr...

Embodiment approach 2

[0052] Such as Figure 5 As shown, the internal camera quadric mirror structure according to the second embodiment of the present invention includes: an internal camera quadric mirror 205 , a camera unit 202 and an image processing unit 204 .

[0053] The internal camera quadric mirror 205 collects bi-directional images at long distances (eg 2 km or more) on the road. Since the internal curved mirror structure is partially removed and reconnected, the internal camera quadric mirror 205 collects more distant images than close images. A camera 207 is included in the internal camera quadric mirror 205 .

[0054] The camera unit 202 collects bi-directional images reflected by the internal camera curved mirror 205 at a long distance (eg 2 km or more) on the road. The camera unit 202 also converts the image into an electronic image signal.

[0055] The image processing unit 204 performs image signal processing on the bidirectional image at a long distance captured by the camera u...

Embodiment approach 3

[0070] Such as Figure 8 As shown, the CCTV multi-area monitoring system with camera quadric mirror structure according to the third embodiment of the present invention includes: a camera unit 202 , an image processing unit 204 and a computer unit 205 .

[0071] The camera unit 302 collects long-distance image conditions on the road, for example, the camera 301 equipped with a quadric mirror collects omnidirectional (360-degree) conditions on the highway with a distance of 2 km or more.

[0072] The image processing unit 303 converts the long-distance image signal of the distorted optical image captured by the camera unit 302 into image data.

[0073] The computer unit 305 constructs a region of interest (ROI, region of interest) by selecting an expanded region from the image data of the distorted image, cuts out a desired curved surface region (such as a sector) from the ROI, and performs an operation on the sector The region is expanded, converted into a planar image, and t...

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Abstract

There is provided a camera secondary curved mirror structure which is manufactured by removing a predetermined portion of a circular curved mirror for a camera which is equidistant by a predetermined distance of m / R from each side of a line which passes through the center-point of the circular curved mirror in a vertical direction, to result two curved mirror members; jointing the two curve mirror members together to form a joint line; establishing a cutting line which is perpendicular to the joint line and which is at a predetermined distance n / D from a point where the joint line intersects the circumference of the curved mirror members; and cutting along the cutting line so that a lower portion of the jointed curved mirror members results, to form a curved mirror.

Description

technical field [0001] The present invention relates to a camera secondary curved mirror structure, a CCTV multi-area monitoring system using the structure, and a method for correcting distorted images therein, and in particular to a camera manufactured through the following steps A subcurved mirror structure, a CCTV multi-area monitoring system using the structure, and a method for correcting distorted images therein, the steps include: removing a predetermined portion from the circular curved mirror of the camera, wherein the The predetermined portion is equidistantly located on both sides of a line passing through the central point of the circular curved mirror in the vertical direction, and the distance from the line is a predetermined distance m / R (wherein R is the radius of the circular curved mirror ), so as to form two curved mirror parts; connect the two curved mirror parts together to form a connecting line; establish a cutting line perpendicular to the connecting li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18
CPCH04N7/18G02B5/10
Inventor 南宫城崔允赫李仁政闵骏永许炳道
Owner KOREA EXPRESSWAY CORPORATION
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