EP0261984A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Three-dimensional visual screening system
Assignee: Individual
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Filing: 1987-09-25
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Granted: —
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Expires: 2007-09-25
Abstract
Abstract A binocular stereoscopic x-ray inspection system is provided in which the objects to be inspected pass successively under two x-ray beams, and over two respective line-array detectors upon which the beams fall, the two beams being set at an angle to one another in the plane parallel to the path of movement so as to capture left and right perspective views of each object on the line-scan principle. Those views are stored in respective frame stores, the video information from which is employed to create a composite image on a monitor that can be viewed as an apparently three-dimensional image. The technique is not limited to x-rays, nor to objects that travel nor to rectilinear movement but instead the relative movement could be achieved, for instance, by mounting two line sensor cameras on a rotating head.
Inventors
- 👤 Max Robinson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 16:55
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/20; G01V5/22; G01V5/228; H; H04; H04N; H04N5/00; H04N5/30; H04N5/32; G01N; G01N23/00; G01N23/02; G01N23/04; H04N13/00; H04N13/10; H04N13/106; H04N13/122; H04N13/189; H04N13/20; H04N13/204; H04N13/207; H04N13/221; H04N13/239; H04N13/296; H04N13/161; H04N13/167; H04N13/30; H04N13/332; H04N13/334; H04N13/337; H04N13/339; H04N13/341; H04N13/398; H04N2013/0074; H04N2013/0081
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A binocular stereoscopic screening or inspection system in which relative movement takes place between the object to be inspected and the inspection means, the inspection means obtains left and right perspective views of the object under inspection by performing two separate linescan operations with the line direction transverse to the direction of relative movement, two video frame stores are provided for storing, respectively, the left and right view information, and display control means are arranged to extract the left and right video image information from the frame stores and input that information to a display monitor to construct a composite image that can be viewed as an apparently three-dimensional image.
Claim 2
Dependent Claim
110 words
A binocular stereoscopic screening or inspection system in which relative movement takes place between the object to be inspected and the inspection means, the inspection means obtains left and right perspective views of the object under inspection by performing two separate linescan operations with the line direction transverse to the direction of relative movement, two video frame stores are provided for storing, respectively, the left and right view information, and display control means are arranged to extract the left and right video image information from the frame stores and input that information to a display monitor to construct a composite image that can be viewed as an apparently three-dimensional image.
Claim 3
Dependent Claim
70 words
A system according to Claim 1, wherein the inspection means comprises x-ray source means which directs two x-ray beams through the path of relative movement of the object to be inspected on to respective line-array detectors situated at the opposite side of said path, the two x-ray beams being set at an angle to one another in the plane containing said path to obtain said left and right perspective views.
Claim 4
Dependent Claim
21 words
A system according to Claim 2, wherein the inspection means comprises two differently directed x-ray sources to provide the two beams.
Claim 5
Dependent Claim
30 words
A system according to Claim 2, wherein the inspection means comprises a single x-ray source and means for deriving therefrom two collimated x-ray beams at an angle to one another.
Claim 6
Dependent Claim
59 words
A system according to Claim 1, wherein the inspection means comprises two line sensor cameras arranged with their line array imagers transverse to the path of relative movement of the object to be inspected and their viewing beams set at an angle to one another in the plane containing said path to obtain said left and right perspective views.
Claim 7
Dependent Claim
24 words
A system according to Claim 5, wherein said two line sensor cameras are mounted on a rotating head to view static objects around them.
Claim 8
Independent Claim
38 words
A system according to any of Claims 2 to 6, wherein the angle between the beams is selected so that parallax in the composite displayed image will not exceed the normal tolerance of fusion limits for human observers.
Claim 9
Independent Claim
29 words
A system according to any of the preceding Claims, comprising control means for bringing about relative lateral shift of the left and right images on the display monitor screen.
Claim 10
Dependent Claim
36 words
A system according to Claim 8, wherein the relative lateral shift of the images is produced by controlling the relative timing of the storage of the left and right view information in the respective frame stores.
Claim 11
Dependent Claim
34 words
A system according to Claim 8, wherein the relative lateral shift of the images is produced by shifting in its respective frame store the left or the right view information stored in one store.
References Cited (Backward Citations)
No citation records indexed.
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