[특허]Compressed image production storage transmission and processing

Compressed image production storage transmission and processing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/60
출원번호	US-0108784 (1993-08-18)
우선권정보	IL-0094729 (1990-06-14)
발명자 / 주소	Yomdin Yossef (Rehov Hanasi Harishon 57/7 Rehovot ILX) Elihai Yoram (Moshav Sgula 67 Doar Na Lachish Zafon ILX) Paz Efraim (Rehov Ha\Nasi 22 Nof Yam Herzliya ILX)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

A process for producing a compressed image of a color picture. The color picture is optically scanned to obtain an array of optical parameters representing the basic colors at each coordinate point of the picture which are then converted into digital values. From such digital values, a selection is made of sets of data values representing a series of elements of the picture having discontinuities therein. A model is formulated for each of the elements having a first component containing all of the discontinuities and a second component representing the differentiable content of the elements. The second component is represented by a Taylor polynomial having a selected polynomial degree of at least 2. A maximum allowable error is then selected. The coefficients of the polynomials of the second component are calculated at selected points of a grid with a grid pitch defined by a specified formula. A compressed color picture is derived from the data values constituting the compressed image.

대표청구항 ▼

Process for the production of a compressed image of a static or dynamic color picture, comprising the steps of: (a) optical scanning said picture to form color corresponding to its basic colors including at least one color selected from the group consisting of magenta, cyan and yellow at all of the coordinate points of said picture; (b) transforming said color values into an array of digital values; (c) selecting from said array of digital values, sets of values representing a series of elements of said picture having discontinuities therein; (d) storing said sets of values within a computer or other electronic storage device; (e) for each of said elements of said picture, formulating a model, with said model having a first component incorporating the discontinuities of said element and a second component representing the differentiable content of said element, with said second component defined by Taylor polynomials having multiple coefficients; (f) selecting a maximum allowable error for the model to establish a given precision for the image to be produced; (g) defining a grid for said picture divided into different regions having multiple grid points and a grid pitch h determined by CMhk+1≤e1/(k+1)!and M is the maximum at each grid point of the absolute value of the derivatives of the grid k+1 of the differential component or components of the model; (h) selecting the degree of Taylor polynomials equal to at least two; (i) using a computer to derive from said models of said elements of said picture, an array of data values constituting a compressed image of said original picture based upon the selection of the degree of said polynomials and the maximum allowable error for said models with the coefficients of said Taylor polynomials computed along grid points for approximating the differentiable component of said models; (j) storing in said computer, the values and parameters defining the first component of said models and the computed coefficients for the Taylor polynomials as the array of data values constituting a compressed image of the original picture; (k) deriving from said array of optical data values corresponding for each of the identifiable coordinate points; and (l) generating from said optical values, a color picture which is the compressed image of said original picture.

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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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Compressed image production storage transmission and processing 원문보기

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Compressed image production storage transmission and processing 원문보기

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