CN105551030A - Infrared target source positioning tracking calibration method - Google Patents
Infrared target source positioning tracking calibration method Download PDFInfo
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- CN105551030A CN105551030A CN201510906032.2A CN201510906032A CN105551030A CN 105551030 A CN105551030 A CN 105551030A CN 201510906032 A CN201510906032 A CN 201510906032A CN 105551030 A CN105551030 A CN 105551030A
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- target source
- image
- calibration method
- infrared target
- tracking calibration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
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- Multimedia (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides an infrared target source positioning tracking calibration method, and the method comprises the steps: collecting an image, and obtaining the pixel values of all points in the image; obtaining a region with the highest brightness through the pixel values, and highlighting the region; obtaining the central point of the region with the highest brightness through the pixels of the region with the highest brightness, and obtaining the coordinates of the central point; and obtaining a three-dimensional space deviation angle according to the coordinates of the central point and a known camera distance through a sine relation. The method achieves the extension of plane angle deviation to three-dimensional spatial angle deviation, thereby enabling the infrared target source positioning tracking to be more accurate.
Description
Technical field
The present invention relates to optical field, particularly a kind of infrared target source electricity tracking calibration method.
Background technology
The calibration of infrared location is one of the emphasis research topic in the fields such as photography test, vision-based detection, computer vision, has and greatly applies.The method of infrared location calibration mainly contains three kinds: conventional calibration method, method for self-calibrating and the calibration steps based on active vision.Compare conventional calibration method, method for self-calibrating and the calibration steps based on active vision, the linear model parameter solving video camera of view data can be obtained according to autonomous control video camera, have precision high, calculate simple, robustness comparatively high.However, above three kinds of infrared location calibration stepss are two-dimensional infrared imaging technique, if can realize the calibration measurement of the three dimensions offset based on infrared imagery technique, will be more accurate for infrared target source electricity tracking calibration precision.
Summary of the invention
The object of the present invention is to provide a kind of infrared target source electricity tracking calibration method, to solve the problem of the calibration measurement of the three dimensions offset how realized based on infrared imagery technique.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of infrared target source electricity tracking calibration method, comprises collection image, and obtain each point pixel value in image; Utilize pixel value, obtain the strongest region of brightness, highlight; Utilize the pixel in the strongest region of brightness to obtain the strongest regional center point, and obtain the coordinate position of central point; According to coordinate position and the known camera distance of described central point, sine relation is utilized to obtain three dimensions deviation angle.
Further, whether before adjustment pixel gathers image, first detecting infrared camera equipment can by computer recognizing.
Further, gather image and regulate pixel to collect imaging image the most clearly.
Further, gather image to comprise: supervisory controller sends a road signal to slide unit driver, sends another road signal to universal stage driver; Slide unit is moved to target location collection position signal by described slide unit driver, and universal stage is forwarded to target location collection position signal by universal stage driver; The position signalling collected all is fed back to described supervisory controller, is sent to computing machine by described supervisory controller.
Infrared target source electricity tracking calibration method provided by the invention, achieves by Plane Angle offsets to three dimensions angular deflection, thus it is more accurate that infrared target source electricity is followed the tracks of.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, invention is described further:
The steps flow chart schematic diagram of the infrared target source electricity tracking calibration method that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of infrared target source electricity tracking calibration method that the present invention proposes is described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, infrared target source electricity tracking calibration method provided by the invention, achieves by Plane Angle offsets to three dimensions angular deflection, thus it is more accurate that infrared target source electricity is followed the tracks of.
The steps flow chart schematic diagram of the infrared target source electricity tracking calibration method that Fig. 1 provides for the embodiment of the present invention.With reference to Fig. 1, infrared target source electricity tracking calibration method comprises:
S11, collection image, and obtain each point pixel value in image;
S12, utilize pixel value, obtain the strongest region of brightness, highlight;
S13, utilize the pixel in the strongest region of brightness to obtain the strongest regional center point, and obtain the coordinate position of central point;
S14, according to the coordinate position of described central point and known camera distance, sine relation is utilized to obtain three dimensions deviation angle.
Further, after each several part successful connection, before adjustment pixel gathers image, first detect infrared camera equipment whether by computer recognizing, can normally to work, when starting to gather image after Programmable detection to infrared camera model, what at this moment collect is infrared image, the region that temperature is low is reflected as black, and temperature is higher, and color of image is partially white.
In embodiments of the present invention, gather image and regulate pixel to collect imaging image the most clearly.Collection image comprises: supervisory controller sends a road signal to slide unit driver, sends another road signal to universal stage driver; Slide unit is moved to target location collection position signal by described slide unit driver, and universal stage is forwarded to target location collection position signal by universal stage driver; The position signalling collected all is fed back to described supervisory controller, is sent to computing machine by described supervisory controller.
Obviously, those skilled in the art can carry out various change and distortion to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. an infrared target source electricity tracking calibration method, is characterized in that, comprising:
Gather image, and obtain each point pixel value in image;
Utilize pixel value, obtain the strongest region of brightness, highlight;
Utilize the pixel in the strongest region of brightness to obtain the strongest regional center point, and obtain the coordinate position of central point;
According to coordinate position and the known camera distance of described central point, sine relation is utilized to obtain three dimensions deviation angle.
2. infrared target source electricity tracking calibration method as claimed in claim 1, is characterized in that, whether before adjustment pixel gathers image, first detecting infrared camera equipment can by computer recognizing.
3. infrared target source electricity tracking calibration method as claimed in claim 1, is characterized in that, gathers image and regulates pixel to collect imaging image the most clearly.
4. infrared target source electricity tracking calibration method as claimed in claim 1, is characterized in that, gathers image and comprises:
Supervisory controller sends a road signal to slide unit driver, sends another road signal to universal stage driver;
Slide unit is moved to target location collection position signal by described slide unit driver, and universal stage is forwarded to target location collection position signal by universal stage driver;
The position signalling collected all is fed back to described supervisory controller, is sent to computing machine by described supervisory controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510906032.2A CN105551030A (en) | 2015-12-09 | 2015-12-09 | Infrared target source positioning tracking calibration method |
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| CN201510906032.2A CN105551030A (en) | 2015-12-09 | 2015-12-09 | Infrared target source positioning tracking calibration method |
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| CN105551030A true CN105551030A (en) | 2016-05-04 |
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Cited By (1)
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| CN107786938A (en) * | 2017-09-15 | 2018-03-09 | 南京轩世琪源软件科技有限公司 | Location of mobile users coordinates compensation method based on WLAN indoor positionings |
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