CN201724683U - Active light emitting calibration block for video recording - Google Patents
Active light emitting calibration block for video recording Download PDFInfo
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- CN201724683U CN201724683U CN2009202441323U CN200920244132U CN201724683U CN 201724683 U CN201724683 U CN 201724683U CN 2009202441323 U CN2009202441323 U CN 2009202441323U CN 200920244132 U CN200920244132 U CN 200920244132U CN 201724683 U CN201724683 U CN 201724683U
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- light emitting
- calibration block
- calibration
- glass panel
- optical glass
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Abstract
The utility model relates to an active light emitting calibration block for video recording, in particular to an active light emitting calibration block for the parameter calibration of the internal and external parameters for the three-dimensional video recording camera in the wind tunnel experiment. In order to meet the calibration requirements on the internal and external parameters for the digital camera in the measurement field of the wind tunnel experiment, the utility model provides the active light emitting calibration block for video recording, and adopts the technical scheme that the active light emitting calibration block is composed of a rectangular outer frame (1), an optical glass panel (3) and an active light emitting marking point (4), wherein an mounting hole (5) is arranged on the optical glass panel (3), and the active light emitting marking point (4) is arranged on the mounting hole (5) so as to form a light emitting lattice light source (2), and the optical glass panel (3) after assembly is fixed on the rectangular outer frame (1). The formed light emitting matrix light source calibration block of 3 multiplied by 5 meets the calibration requirements of the digital camera in the measurement field of the wind tunnel experiment, the active light emitting marking point emits the visible light with certain length to penetrate a light filter, only the light spot of the light emitting marking point is recorded on the digital camera to form the original image, so as to form the standard parameter of the digital camera.
Description
One, technical field
The utility model relates to a kind of active illuminating calibration block that is used for video camera, mainly is to be used for the active illuminating calibration block that the camera interior and exterior parameter of the 3 D video shooting of wind tunnel experiment is demarcated.
Two, background technology
The video camera vision technique is based on a kind of measuring technique of image processing techniques, be widely used in every field, along with the development digital camera of technology in the application of wind tunnel experiment fields of measurement more and more widely, as particle picture technology, video distortion measurement technology, video angle measuring technique etc.In these technology, technical matters the most basic is the calibration of camera interior and exterior parameter, for a long time, the method that adopts is processing criterion calibration plate or standard calibration piece, on calibration plate or calibration block, arrange the calibration point or the lubber-line of white, come each of calibration camera by gathering calibration point or lubber-line, therefore, the standard calibration piece is a most important equipment that needs in this technology.
Three, summary of the invention
Collimation technique requirement for the digital camera inside and outside parameter that satisfies the wind tunnel experiment fields of measurement, satisfy digital camera and gather canonical parameter, carry out image processing techniques, the utility model provides a kind of active illuminating calibration block that is used for video camera, measures the equipment requirements of digital camera collimation technique to satisfy wind tunnel experiment.
The technical solution of the utility model is, the active illuminating calibration block that is used for video camera, form by rectangle housing [1], optical glass panel [3], active illuminating gauge point [4], it is characterized in that: on the high-precision optical glass panel [3] that Precision Machining is made, be provided with one 3 * 5 dot matrix and locate accurate mounting hole [5], active illuminating gauge point [4] is installed on the mounting hole [5], form one 3 * 5 luminous point array light source [2], the optical glass panel [3] after assembling is finished is fixed on the rectangle housing [1].
Adopt Precision Machining to make high-precision optical glass panel, on the optical glass panel, be provided with a plurality of location accurate active illuminating gauge point mounting hole, make the active illuminating gauge point accurately be positioned on the mounting hole; 3 * 5 luminous point array light sources of forming are fixed on the complete calibration block of composition on the rectangle housing, measure the digital camera alignment requirements to satisfy wind tunnel experiment.
The active illuminating gauge point sends the visible light of certain wavelength, on the camera lens of digital camera system, install the optical filtering that lastblock can only see through this visible light additional, thereby on digital camera, have only luminescent marking point hot spot to be recorded, form original image, it is clear shinny having only the gauge point hot spot like this on original image, forms the canonical parameter of digital camera.
Four, description of drawings
Fig. 1 is an active illuminating calibration block structural representation, and Fig. 2 is an active illuminating gauge point structural representation.Wherein, 1-rectangle housing, 2-3 * 5 luminous point array light sources, 3-optical glass panel, 4-active illuminating gauge point, 5-mounting hole; 11-disperses eyeglass, 12-filter glass, 13-illuminating part, 14-aluminium overcoat, 15-binding post, 16-holder.
Five, embodiment
In conjunction with the accompanying drawings 1,2, provide following examples, the technical solution of the utility model is described further.
The active illuminating calibration block that is used for video camera, form by rectangle housing [1], optical glass panel [3], active illuminating gauge point [4], it is characterized in that: on the high-precision optical glass panel [3] that Precision Machining is made, be provided with one 3 * 5 dot matrix and locate accurate mounting hole [5], active illuminating gauge point [4] is installed on the mounting hole [5], form one 3 * 5 luminous point array light source [2], the optical glass panel [3] after assembling is finished is fixed on the rectangle housing [1].
The active illuminating calibration block that is used for video camera, it is characterized in that: active illuminating gauge point [4] is a light-emitting component, form by dispersing eyeglass [11], filter glass [12], illuminating part [13], aluminium overcoat [14] etc., illuminating part [13] is installed on the holder [16] of aluminium overcoat [14], filter glass [12] is installed in above the illuminating part [13], dispersing eyeglass [11] is installed in above the filter glass [12], all be fixed on the aluminium overcoat [14], connect into the illuminating part [13] of aluminium overcoat [14] by binding post [15].
The active illuminating calibration block that is used for video camera, it is characterized in that: installing the rectangle housing [1] of 3 * 5 luminous point array light sources [2], can be the assembling of the rectangle housing [1] of 3 * 5 luminous point array light sources [2] of equal altitudes difference between the optical glass panel [3] more than 2.
Active illuminating gauge point [4] can be that the light emitting diode that sends certain wavelength is formed, light emitting diode sends the visible light of certain wavelength, in the time of on shining diffuse reflection optics device, form the diffuse reflection hot spot of a circle, before the camera lens of imaging systems such as digital camera, install the narrow-band filter that lastblock can only see through the light emitting diode wavelength additional, thereby have only luminescent marking point hot spot to be recorded at digital camera, and other background miscellaneous light major part is all filtered by optical filtering, it is clear shinny having only the gauge point hot spot like this on original image, and other background all is dark, has just obtained the tangible luminescent marking point original image of contrast.By this method, can provide the calibration parameter of standard, reduce the difficulty of Flame Image Process, thereby saved the Flame Image Process time greatly and improved calibration accuracy.
The equipment work process:
After giving power devices, regulate strength of current, make 3 * 5 luminous point array light source [2] luminous intensities, as adopting light emitting diode, regulate the green glow that dot matrix after the strength of current just can be sent varying strength, clear up to imagings such as digital cameras, bright till.
Claims (3)
1. the active illuminating calibration block that is used for video camera, form by rectangle housing [1], optical glass panel [3], active illuminating gauge point [4], it is characterized in that: on the high-precision optical glass panel [3] that Precision Machining is made, be provided with one 3 * 5 dot matrix and locate accurate mounting hole [5], active illuminating gauge point [4] is installed on the mounting hole [5], form one 3 * 5 luminous point array light source [2], the optical glass panel [3] after assembling is finished is fixed on the rectangle housing [1].
2. the active illuminating calibration block that is used for video camera according to claim 1, it is characterized in that: active illuminating gauge point [4] is a light-emitting component, form by dispersing eyeglass [11], filter glass [12], illuminating part [13], aluminium overcoat [14] etc., illuminating part [13] is installed on the holder [16] of aluminium overcoat [14], filter glass [12] is installed in above the illuminating part [13], dispersing eyeglass [11] is installed in above the filter glass [12], all be fixed on the aluminium overcoat [14], connect into the illuminating part [13] of aluminium overcoat [14] by binding post [15].
3. according to claims 1 described active illuminating calibration block that is used for video camera, it is characterized in that: installing the rectangle housing [1] of 3 * 5 luminous point array light sources [2], can be the assembling of the rectangle housing [1] of 3 * 5 luminous point array light sources [2] of equal altitudes difference between the optical glass panel [3] more than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202441323U CN201724683U (en) | 2009-11-20 | 2009-11-20 | Active light emitting calibration block for video recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202441323U CN201724683U (en) | 2009-11-20 | 2009-11-20 | Active light emitting calibration block for video recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201724683U true CN201724683U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202441323U Expired - Fee Related CN201724683U (en) | 2009-11-20 | 2009-11-20 | Active light emitting calibration block for video recording |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364171A (en) * | 2013-07-15 | 2013-10-23 | 中国航天空气动力技术研究院 | Video measuring system and measuring method for model gestures in high-speed wind tunnel |
| CN103983419A (en) * | 2014-05-27 | 2014-08-13 | 大连理工大学 | Motion model vision measurement image acquisition method for wind tunnel |
| CN105122303A (en) * | 2011-12-28 | 2015-12-02 | 派尔高公司 | Camera calibration using feature identification |
| CN111294527A (en) * | 2020-01-21 | 2020-06-16 | 台湾骨王生技股份有限公司 | Infrared lens active imaging correction device and method |
-
2009
- 2009-11-20 CN CN2009202441323U patent/CN201724683U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122303A (en) * | 2011-12-28 | 2015-12-02 | 派尔高公司 | Camera calibration using feature identification |
| CN103364171A (en) * | 2013-07-15 | 2013-10-23 | 中国航天空气动力技术研究院 | Video measuring system and measuring method for model gestures in high-speed wind tunnel |
| CN103364171B (en) * | 2013-07-15 | 2015-12-02 | 中国航天空气动力技术研究院 | A kind of high-speed wind tunnel model attitude video measuring system and measuring method |
| CN103983419A (en) * | 2014-05-27 | 2014-08-13 | 大连理工大学 | Motion model vision measurement image acquisition method for wind tunnel |
| CN111294527A (en) * | 2020-01-21 | 2020-06-16 | 台湾骨王生技股份有限公司 | Infrared lens active imaging correction device and method |
| CN111294527B (en) * | 2020-01-21 | 2022-06-10 | 台湾骨王生技股份有限公司 | Infrared lens active imaging correction device and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20131120 |