IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0384954
(2006-03-20)
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등록번호 |
US-7437062
(2008-10-14)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
15 인용 특허 :
11 |
초록
▼
An aerial imaging system includes a platform capable of moving through the air, a spatial sensor, a plurality of image sensors mounted to the platform and a computer. The spatial sensor collects position data indicating the position of the platform. The plurality of image sensors includes a key sens
An aerial imaging system includes a platform capable of moving through the air, a spatial sensor, a plurality of image sensors mounted to the platform and a computer. The spatial sensor collects position data indicating the position of the platform. The plurality of image sensors includes a key sensor and at least one non-key sensor. The computer includes a storage device and a processor configured to execute instructions comprising the steps of (i) controlling the plurality of image sensors to collect image data simultaneously, (ii) determining the exterior orientation of the key sensor based on the position data, and (iii) determining the exterior orientation of at least one non-key sensor based on the exterior orientation of the key sensor.
대표청구항
▼
I claim: 1. An aerial imaging system comprising: a platform capable of moving through the air; a spatial sensor, wherein the spatial sensor collects at least position data indicating the position of the platform; a plurality of image sensors mounted to the platform, the plurality of image sensors i
I claim: 1. An aerial imaging system comprising: a platform capable of moving through the air; a spatial sensor, wherein the spatial sensor collects at least position data indicating the position of the platform; a plurality of image sensors mounted to the platform, the plurality of image sensors including a key sensor and at least one non-key sensor; a computer including a storage device and a processor configured to execute instructions comprising the steps of (i) controlling the plurality of image sensors to collect image data simultaneously, (ii) determining the exterior orientation of the key sensor based on the position data, and (iii) determining the exterior orientation of at least one non-key sensor based on the exterior orientation of the key sensor. 2. The aerial imaging system according to claim 1, wherein the spatial sensor includes at least one of the set comprising an inertial measurement unit and a GPS receiver. 3. The aerial imaging system according to claim 1, wherein the plurality of image sensors are sensitive to at least two bands of the electromagnetic spectrum. 4. The aerial imaging system according to claim 1, wherein the spatial sensor further collects orientation data and consists of an inertial measurement unit and a position computer for determining position and orientation based on the position data and the orientation data, and at least the position data consists of acceleration data. 5. The aerial imaging system according to claim 4, wherein the acceleration data includes the set comprising at least one of attitude acceleration data of the platform and linear acceleration data of the platform. 6. The aerial imaging system according to claim 1, wherein the computer is configured to execute instructions further comprising controlling the spatial sensor to collect position data at least each time image data is collected by the plurality of image sensors. 7. The aerial imaging system according to claim 6, further comprising monitoring means for visually monitoring data collection, the monitoring means including at least one of a group including a motion-picture camera and an on-board display. 8. The aerial imaging system according to claim 1, the computer being configured to execute instructions further comprising accessing interior-orientation data for each of the key and non-key image sensors, coregistering and subsequently stacking the non-key-sensor image data and the key-sensor image data based on the interior-orientation data for each sensor and the determined exterior orientation. 9. The aerial imaging system according to claim 8, the computer being configured to execute instructions further comprising analyzing the stacked set of image data. 10. The aerial imaging system according to claim 9, wherein the step of analyzing includes performing a classifying operation on the image data. 11. The aerial imaging system according to claim 10, the computer being configured to execute instructions further comprising the steps of (i) reading auxiliary data from the storage device, the auxiliary data including at least one of vector data, a digital elevation model and map projection data, and (ii) analyzing the stacked set of image data in combination with the auxiliary data. 12. The aerial imaging system according to claim 11, further comprising a command-center computer, wherein the computer is configured to execute instructions further comprising the step of telemetering a resultant image file to the command-center computer, wherein the image file can be displayed on the command-center computer. 13. A method of remote sensing comprising the steps of: determining the interior orientations of a plurality of sensors, which includes a key sensor and at least one non-key sensor, the plurality of sensors being mounted on a platform; collecting platform position data from a spatial sensor; determining a relationship between the key sensor and the spatial sensor; determining a relationship between the at least one non-key sensor and the key sensor; determining the exterior orientation of a key sensor based on the platform position data collected from the spatial sensor and the relationship between the key sensor and the spatial sensor; and determining the exterior orientation of at least one non-key sensor based on the exterior orientation of the key sensor and the relationship between the key sensor and the at least one non-key sensor. 14. The method according to claim 13, wherein the plurality of sensors are image sensors, the method further comprising the step of collecting raw image data using the plurality of image sensors. 15. The method according to claim 14, further comprising controlling at least the key sensor and the at least one non-key sensor to collect data simultaneously. 16. The method according to claim 14 or 15, further comprising transforming data collected by the at least one non-key sensor into an image space of the key sensor using a polynomial transformation, wherein the inputs to the transformation include the raw image data of the at least one non-key sensor, the interior orientation of the at least one non-key sensor and the exterior orientation of the at least one non-key sensor. 17. The method according to claim 16, the method further comprising the step of coregistering the image data of the at least one non-key sensor with the image data of the key sensor, after the step of transforming the image data of the at least one non-key sensor. 18. The method according to claim 13, wherein each of the plurality of sensors has a unique perspective such that no two sensors collect image data from the same area on the earth through the same space defined between the image sensor and the field-of-view of the image sensor. 19. An aerial imaging system comprising: a platform capable of moving through the air; spatial sensor means collecting position data indicating the position of the platform; a plurality of image sensors mounted to the platform, the plurality of image sensors including a key sensor and at least one non-key sensor; means for (i) controlling the plurality of image sensors to collect image data simultaneously, (ii) determining the exterior orientation of the key sensor based on the position data, and (iii) determining the exterior orientation of at least one non-key sensor based on the exterior orientation of the key sensor.
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