Patent EP0319976A2 successfully refreshed from Google Patents.
EP0319976A2
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Method of and apparatus for recording image in the form of pixel array
Assignee: Dainippon Screen Manufacturing Co Ltd
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Filing: 1988-12-08
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Granted: —
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Expires: 2008-12-08
Abstract
Abstract The size of an recording pixel (7) is not the inverse of an integer multiple of an original pixel (2). In the process of combining a plurality of original images with each other in order to record a combined image, spatial relationship between the respective pixel arrangements of the original pixel array and the recording pixel array is detected. According to the spatial relationship, a plurality of original pixels surrounding each recording pixel are specified, and the pixel image data for the specified original pixels are interpolated unless it is detected that a combination boundary between the original images exists in the recording pixel. The interpolated image data is employed for the recording pixel.
Inventors
- 👤 Akihiro Dainippon Screen Mfg. Co. Ltd. Yokota
- 👤 Fumihiro Dainippon Screen Mfg. Co. Ltd. Hatayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:14
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/40068; H04N1/387; H04N1/3871
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
241 words
A method of generating an object image to be recorded on a recording plate in the form of a recording pixel array on the basis of an original image data, wherein said object image is obtained by combining a plurality of original images with each other according to a predetermined pattern data expressing a combination pattern of said original images, said method comprising the steps of: (1) preparing image data expressing original images in the form of an original pixel array; (2) determining respective sizes of a recording pixel included in said recording pixel array and an original pixel included in said original pixel array; (3) detecting a spatial relationship between respective pixel arrangements of said recording pixel array and said original pixel array on the basis of said respective sizes; (4) specifying a plurality of original pixels spatially surrounding each recording pixel on the basis of said spatial relationship; (5) extracting respective pixel image data for said original pixels specified in the step (4) from said original image data; (6) detecting a combination boundary between said original images; (7) interpolating said respective pixel image data to generate an interpolated pixel image data in case of not detecting said combination boundary in the step (6); (8) recording an image on said recording plane for each recording pixel on the basis of said interpolated pixel image data and said pixel image data, thereby to obtain said object image on said recording plate.
Claim 2
Independent Claim
241 words
A method of generating an object image to be recorded on a recording plate in the form of a recording pixel array on the basis of an original image data, wherein said object image is obtained by combining a plurality of original images with each other according to a predetermined pattern data expressing a combination pattern of said original images, said method comprising the steps of: (1) preparing image data expressing original images in the form of an original pixel array; (2) determining respective sizes of a recording pixel included in said recording pixel array and an original pixel included in said original pixel array; (3) detecting a spatial relationship between respective pixel arrangements of said recording pixel array and said original pixel array on the basis of said respective sizes; (4) specifying a plurality of original pixels spatially surrounding each recording pixel on the basis of said spatial relationship; (5) extracting respective pixel image data for said original pixels specified in the step (4) from said original image data; (6) detecting a combination boundary between said original images; (7) interpolating said respective pixel image data to generate an interpolated pixel image data in case of not detecting said combination boundary in the step (6); (8) recording an image on said recording plane for each recording pixel on the basis of said interpolated pixel image data and said pixel image data, thereby to obtain said object image on said recording plate.
Claim 3
Dependent Claim
56 words
A method in accordance with claim 1, wherein said pattern data comprises a number of combination signals corresponding to said respective recording pixels, and said step (6) includes detecting the respective bits of said pattern data and comparing the same with each other, whereby it is detected whether said combination boundary exists in said original images.
Claim 4
Dependent Claim
34 words
A method in accordance with claim 2, wherein the existence of said combination boundary in said original images is detected at which every combination signal of said pattern data is one of possible states.
Claim 5
Dependent Claim
47 words
A method in accordance with claim 1, wherein said method is used in an image recorder for generating said object image in time series by scanning said recording plane along a predetermined scanning direction, and said spatial relationship is detected in time series along said scanning direction.
Claim 6
Dependent Claim
111 words
A method in accordance with claim 1, wherein the step (7) includes the steps of: (7-1) detecting recording pixels other than recording pixels included in an exclusion distance on the basis of said spatial relationship from respective center points of said original pixels specified in the step (4); (7-2) determining a coefficient function corresponding to distances between one of said center points and said respective recording pixels detected in the step (7-1); (7-3) finding distances between one of said center points and respective recording pixels surrounded by said center points; and (7-4) obtaining an interpolated image data for recording pixels on the basis of said distances by using said coefficient function.
Claim 7
Dependent Claim
29 words
A method in accordance with claim 5, wherein said coefficient function includes invalid values for interpolation, said invalid values being applied with recording pixels included in said excluded distance.
Claim 8
Independent Claim
282 words
An apparatus for generating an object image to be recorded on a recording plane in the form of a recording pixel array on the basis of an original image data expressing an original image in the form of an original pixel array, wherein respective sizes of a recording pixel included in said recording pixel array and an original pixel included in said original pixel array are predetermined, and said object image is obtained by combining a plurality of original images with each other according to a predetermined pattern data expressing a combination pattern of said original images, said apparatus comprising: (1) input means for inputting said original image data and a size data expressing said respective sizes; (2) detection means for detecting a spatial relationship between respective pixel arrangements of said recording pixel array and said original pixel array on the basis of said size data; (3) specifying means for specifying a plurality of original pixels spatially surrounding each recording pixel on the basis of said spatial relationship; (4) extraction means for extracting respective pixel image data for said original pixels specified by said specifying means from said original image data; (5) interpolation means for interpolating said respective pixel image data to generate an interpolated pixel image data; (6) boundary detection means for detecting a combination boundary between said original images; (7) means for disenabling said interpolation means at said combination boundary; and (8) recording means for recording an image on said recording plane for each recording pixel on the basis of said interpolated pixel image data generated with said interpolation means and said pixel image data specified by said specifying means, whereby said object image is obtained on said recording plane.
Claim 9
Independent Claim
282 words
An apparatus for generating an object image to be recorded on a recording plane in the form of a recording pixel array on the basis of an original image data expressing an original image in the form of an original pixel array, wherein respective sizes of a recording pixel included in said recording pixel array and an original pixel included in said original pixel array are predetermined, and said object image is obtained by combining a plurality of original images with each other according to a predetermined pattern data expressing a combination pattern of said original images, said apparatus comprising: (1) input means for inputting said original image data and a size data expressing said respective sizes; (2) detection means for detecting a spatial relationship between respective pixel arrangements of said recording pixel array and said original pixel array on the basis of said size data; (3) specifying means for specifying a plurality of original pixels spatially surrounding each recording pixel on the basis of said spatial relationship; (4) extraction means for extracting respective pixel image data for said original pixels specified by said specifying means from said original image data; (5) interpolation means for interpolating said respective pixel image data to generate an interpolated pixel image data; (6) boundary detection means for detecting a combination boundary between said original images; (7) means for disenabling said interpolation means at said combination boundary; and (8) recording means for recording an image on said recording plane for each recording pixel on the basis of said interpolated pixel image data generated with said interpolation means and said pixel image data specified by said specifying means, whereby said object image is obtained on said recording plane.
Claim 10
Dependent Claim
56 words
An apparatus in accordance with claim 7, wherein said pattern data comprises a number of combination signals corresponding to respective original pixels, and said boundary detection means detects the respective combination signals of said pattern data and compares the same with each other, whereby it is detected whether said combination boundary exists in said original images.
Claim 11
Dependent Claim
35 words
An apparatus in accordance with claim 8, wherein said boundary detection means concludes that said combination boundary exists in said original images when every combination signal of said pattern data is one of possible states.
Claim 12
Dependent Claim
44 words
An apparatus in accordance with claim 7, wherein said apparatus is an image recorder for generating said object image in time series by scanning said recording plane along a predetermined scanning direction, and spatial relationship is detected in time series along said scanning direction.
Claim 13
Dependent Claim
126 words
An apparatus in accordance with claim 7, wherein said interpolation means comprises: (5-1) memory means for storing predetermined coefficient function corresponding to distances between one of center points of said original pixels specified by said specifying means and respective selected recording pixels, said selected recording pixels being recording pixels other than recording pixels included in an exclusion distance on the basis of said spatial relationship from respective center points of said original pixels specified by said specifying means; (5-2) means for finding distances between one of said center points and respective recording pixels surrounded by said center points, and (5-3) means for obtaining an interpolated image data for recording pixels on the basis of said distances by using said coefficient function stored in said memory means.
Claim 14
Dependent Claim
29 words
An apparatus in accordance with claim 11, wherein said coefficient function includes invalid values for interpolation, said invalid values being applied with recording pixels included in said excluded distance.
References Cited (Backward Citations)
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