Method for measuring three orientational degrees of freedom of a cube-corner retroreflector
US-2015379714-A1 · Dec 31, 2015 · US
Method for calibrating a measurement instrument of an optronic system
US9030552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9030552-B2 |
| Application number | US-201013516731-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2010 |
| Priority date | Dec 18, 2009 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
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A method for calibrating measurement instruments of an optronic system in motion, with positions P 1 , P 2 , . . . , P i , . . . , comprises: a device for acquiring images of a scene comprising a fixed object G 0 ; and means for tracking the fixed object G 0 during the acquisition of these images; means for obtaining the positions P 1 , P 2 , . . . ; at least one instrument for measuring the distance and/or an instrument for measuring angles of orientation and/or of attitude between this measurement instrument and the fixed object G 0 , according to a line of sight LoS. It comprises the following steps: acquisition at instants t 1 , t 2 , . . . of at least two images, each image being acquired on the basis of different positions P 1 , P 2 , . . . of the system, the fixed object G 0 being sighted in each image, but its position being unknown; acquisition at the instants t′ 1 , t′ 2 , . . . of measurements of distance and/or of angle; synchronization of the measurements of distance and/or of angle with the positions P 1 , P 2 , . . . established at instants t 1 , t 2 , . . . ; estimation of the measurement defects which minimize the dispersion of at least two points of intersection G ij between the LoS at the position P i and the LoS at the position P j , as a function of said measurements and of the known positions P i , P j of the system.
First claim
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The invention claimed is: 1. A method for calibrating measurement instruments of an optronic system in motion, with positions P 1 , P 2 , . . . , P i , . . . , the optronic system-comprising a device for acquiring images of a scene comprising a fixed object G 0 , and means for tracking the fixed object G 0 during the acquisition of these images, means for obtaining the positions P 1 , P 2 , . . . , at least one instrument for measuring the distance and/or an instrument for…
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- What does patent US9030552B2 cover?
- A method for calibrating measurement instruments of an optronic system in motion, with positions P 1 , P 2 , . . . , P i , . . . , comprises: a device for acquiring images of a scene comprising a fixed object G 0 ; and means for tracking the fixed object G 0 during the acquisition of these images; means for obtaining the positions P 1 , P 2 , . . . ; at least one instrument for measuring the d…
- Who is the assignee on this patent?
- Simon Alain, Thales Sa
- What technology area does this patent fall under?
- Primary CPC classification G01S5/163. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).