[특허]System and method for analyzing optical spectral data of a terrain image

System and method for analyzing optical spectral data of a terrain image 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06K-009/46 G01J-003/28
출원번호	US-0893489 (1992-06-05)
발명자 / 주소	Davies Donald W. (Torrance CA)
출원인 / 주소	TRW Inc. (Redondo Beach CA 02)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

An image processing system and method for performing optical signal processing including target recognition and filtering. The system is particularly useful in remote or mobile imaging processing systems where the data gathering capabilities exceed the ability of the system to transmit this data over conventional data links. The system includes a spectrometer which receives portions of an image and produces a plurality of spectra of individual pixels in the image. A light-sensitive detector receives the spectra and converts the spectra into electrical signals. A memory unit stores a predetermined matrix of coefficients, each coefficient corresponding to one wavelength of said spectral signal. A multiply and accumulate unit received one spectral signal and a corresponding matrix coefficient and adds the products to generate a spectral measure for each pixel in the image. By changing the matrix in the memory unit, it is possible to synthesize a wide variety of desired optical processing functions such as target recognition, correlation and filtering.

대표청구항 ▼

A system for analyzing data from an image, said system comprising: spectrometer for receiving portions of said image and producing a plurality of spectra of individual pixels in said image; light sensitive detector for receiving said plurality of spectra and converting said spectra into electrical data signals; and target recognition unit for processing said electrical data signals representing said spectra, said target recognition unit including correlation means for comparing said signals with previously stored spectra data from features of known classes, said correlation means generating a correlation measure of the similarity between said spectra for said pixels and said spectra for said known feature, said correlation means including means for storing a matrix of coefficients, each of said coefficients in said matrix corresponding to one of the wavelength values in said spectra for one of a plurality of spectral basis vectors corresponding to known feature classes; said correlation means further including multiply and accumulate means for receiving said coefficients, from said means for storing as well as said electrical data signals, said multiply and accumulate means multiplying said spectral data signals by a corresponding coefficient in the matrix, and the multiply and accumulate means adding the resulting multiplicative products to generate a spectral measure for each pixel in a image, wherein the coefficients in the matrix are chosen such that the results of the multiplication yield both positive and negative values and the sum will be approximately zero where there is no match and will be approximately one where there is a match and wherein a plurality of resulting sums for each pixel is a correlation value which indicates the likelihood that the spectra for the pixel is from one of the spectral basis vectors.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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System and method for analyzing optical spectral data of a terrain image 원문보기

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System and method for analyzing optical spectral data of a terrain image 원문보기

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연구과제 타임라인

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