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US5581671A
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Method and apparatus for moving-picture display of three-dimensional images
Assignee: Hitachi Healthcare Manufacturing Ltd
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Filing: 1994-10-13
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Granted: 1996-12-03
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Expires: 2014-10-13
Abstract
Abstract A moving-picture display method in which a stacked region of a plurality of planar images is changed, a three-dimensional image is constructed corresponding to each changed stacked region, projected three-dimensional images on a desirably set viewing plane are determined from the constructed three-dimensional images, and obtained projected three-dimensional images are sequentially displayed in order of stacked regions which sequentially increase or decrease in size.
Inventors
- 👤 Yoshihiro Goto
- 👤 Kazuhiro Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:57
CPC Classifications
G; G06; G06T; G06T15/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
152 words
A method for producing a moving-picture display of three-dimensional images in a moving-picture display apparatus designed to construct projected three-dimensional images on a desirably set viewing plane from three-dimensional images constructed by stacking a plurality of planar images as a stacked region and displaying the projected three-dimensional images as a moving picture, comprising the steps of: (a) updating the stacked region in an increasing or decreasing direction; (b) constructing a projected three-dimensional image corresponding to said updated stacked region and storing said projected three-dimensional image in a memory; (c) repeating said steps (a) and (b) a predetermined number of times;. (d) sequentially reading out stored projected three-dimensional images in order of the projected three-dimensional images corresponding to the stacked regions which sequentially increase in size or the projected three-dimensional images corresponding to the stacked regions which sequentially decrease in size; and (e) displaying the projected three-dimensional images read-out as a moving picture.
Claim 2
Independent Claim
152 words
A method for producing a moving-picture display of three-dimensional images in a moving-picture display apparatus designed to construct projected three-dimensional images on a desirably set viewing plane from three-dimensional images constructed by stacking a plurality of planar images as a stacked region and displaying the projected three-dimensional images as a moving picture, comprising the steps of: (a) updating the stacked region in an increasing or decreasing direction; (b) constructing a projected three-dimensional image corresponding to said updated stacked region and storing said projected three-dimensional image in a memory; (c) repeating said steps (a) and (b) a predetermined number of times;. (d) sequentially reading out stored projected three-dimensional images in order of the projected three-dimensional images corresponding to the stacked regions which sequentially increase in size or the projected three-dimensional images corresponding to the stacked regions which sequentially decrease in size; and (e) displaying the projected three-dimensional images read-out as a moving picture.
Claim 3
Dependent Claim
65 words
A moving-picture display method according to claim 1, wherein said step (b) for constructing projected three-dimensional images includes, when a cutting plane parallel to said viewing plane is so set as to cross a stacked region, determining projected three-dimensional images from three-dimensional images based on stacked regions extending from said cutting plane in a direction in which said stacked regions depart from said viewing plane.
Claim 4
Dependent Claim
55 words
A moving-picture display method according to claim 1, wherein said reading out step (d) includes providing a reference of a predetermined size of stacked region and sequentially reading out projected three-dimensional images from said memory in a direction in which the stacked region increases or decreases in size beginning with the reference stacked region size.
Claim 5
Dependent Claim
45 words
A moving-picture display method according to claim 1, wherein said displaying step (e) includes: determining the center of a region of interest in said read-out projected three-dimensional images; and performing display such that said center is brought to a designated position on a display screen.
Claim 6
Dependent Claim
24 words
A moving-picture display method according to claim 4, wherein said displaying step (e) includes performing enlarging display of said projected three-dimensional images read out.
Claim 7
Dependent Claim
60 words
A moving-picture display method according to claim 1, wherein said projected three-dimensional image constructing step (b) includes constructing said projected three-dimensional images such that coincidence of the center of a region of interest in said images is permitted, and said displaying step (e) includes performing display such that said center is brought to a designated position on a display screen.
Claim 8
Dependent Claim
21 words
A moving-picture display method according to claim 6, wherein said displaying step (e) includes enlarging said projected three-dimensional images read out.
Claim 9
Independent Claim
119 words
A method for producing a moving-picture display of three-dimensional images in a moving-picture display apparatus designed to construct projected three-dimensional images on a desirably set viewing plane from three-dimensional images constructed by stacking a plurality of planar images as a stacked region and displaying the projected three-dimensional images as a moving picture, comprising the steps of: (a) updating the stacked region in an increasing or decreasing direction; (b) constructing a projected three-dimensional image on said viewing plane from a three-dimensional image based on the updated stacked region and displaying the projected three-dimensional image on a display screen; and (c) repeating said steps (a) and (b) a predetermined number of times so as to enable display as a moving picture.
Claim 10
Independent Claim
119 words
A method for producing a moving-picture display of three-dimensional images in a moving-picture display apparatus designed to construct projected three-dimensional images on a desirably set viewing plane from three-dimensional images constructed by stacking a plurality of planar images as a stacked region and displaying the projected three-dimensional images as a moving picture, comprising the steps of: (a) updating the stacked region in an increasing or decreasing direction; (b) constructing a projected three-dimensional image on said viewing plane from a three-dimensional image based on the updated stacked region and displaying the projected three-dimensional image on a display screen; and (c) repeating said steps (a) and (b) a predetermined number of times so as to enable display as a moving picture.
Claim 11
Dependent Claim
65 words
A moving-picture display method according to claim 8, wherein said step (b) for constructing projected three-dimensional images includes, when a cutting plane parallel to said viewing plane is so set as to cross a stacked region, determining projected three-dimensional images from three-dimensional images based on stacked regions extending from said cutting plane in a direction in which said stacked regions depart from said viewing plane.
Claim 12
Dependent Claim
45 words
A moving-picture display method according to claim 8, wherein said displaying step (b) includes: determining the center of a region of interest in said constructed projected three-dimensional images; and performing display such that said center is brought to a designated position on a display screen.
Claim 13
Dependent Claim
23 words
A moving-picture display method according to claim 10, wherein said displaying step (b) includes performing enlarging display of said constructed projected three-dimensional images.
Claim 14
Independent Claim
101 words
An apparatus for producing a moving-picture display of three-dimensional images, comprising: means for constructing stacked three-dimensional images by stacking a plurality of planar images as a stacked region; memory means for increasing or decreasing the stacked region and storing stacked three-dimensional images obtained corresponding to respective stacked regions; means for sequentially reading out said stored three-dimensional images from said memory in order of the three-dimensional images corresponding to stacked regions which sequentially increase in size or the three-dimensional images corresponding to stacked regions which sequentially decrease in size; and means for displaying said three-dimensional images read out as a moving picture.
Claim 15
Independent Claim
101 words
An apparatus for producing a moving-picture display of three-dimensional images, comprising: means for constructing stacked three-dimensional images by stacking a plurality of planar images as a stacked region; memory means for increasing or decreasing the stacked region and storing stacked three-dimensional images obtained corresponding to respective stacked regions; means for sequentially reading out said stored three-dimensional images from said memory in order of the three-dimensional images corresponding to stacked regions which sequentially increase in size or the three-dimensional images corresponding to stacked regions which sequentially decrease in size; and means for displaying said three-dimensional images read out as a moving picture.
Claim 16
Independent Claim
175 words
An apparatus for producing a moving-picture display of three-dimensional images, comprising: means for constructing stacked three-dimensional images by stacking a plurality of planar images or a stacked region; means for constructing projected three-dimensional images on a desirably set viewing plane from said stacked three-dimensional images; means for increasing or decreasing the stacked region and determining a projected three-dimensional image from a stacked three-dimensional image obtained corresponding to each stacked region; memory means for storing a plurality of projected three-dimensional images, each projected three-dimensional image being determined for each stacked region which is updated by increasing or decreasing; designation/input means for designating either one of advance moving-picture designation and reverse moving-picture designation; means for sequentially reading out said projected three-dimensional images in order of stacked regions which begin with a larger stacked region when the advance motion-picture designation is inputted but in order of stacked regions which begins with a smaller stacked region when the reverse moving-picture designation is inputted; and means for displaying read-out projected three-dimensional images as a moving picture on a display screen.
Claim 17
Independent Claim
175 words
An apparatus for producing a moving-picture display of three-dimensional images, comprising: means for constructing stacked three-dimensional images by stacking a plurality of planar images or a stacked region; means for constructing projected three-dimensional images on a desirably set viewing plane from said stacked three-dimensional images; means for increasing or decreasing the stacked region and determining a projected three-dimensional image from a stacked three-dimensional image obtained corresponding to each stacked region; memory means for storing a plurality of projected three-dimensional images, each projected three-dimensional image being determined for each stacked region which is updated by increasing or decreasing; designation/input means for designating either one of advance moving-picture designation and reverse moving-picture designation; means for sequentially reading out said projected three-dimensional images in order of stacked regions which begin with a larger stacked region when the advance motion-picture designation is inputted but in order of stacked regions which begins with a smaller stacked region when the reverse moving-picture designation is inputted; and means for displaying read-out projected three-dimensional images as a moving picture on a display screen.
Claim 18
Dependent Claim
101 words
A moving-picture display apparatus according to claim 13, wherein said reading out means includes means for providing a reference of a predetermined stacked region or of a projected three-dimensional image number which is set by the user as a reference of moving-picture display and sequentially reading out projected three-dimensional images in order of stacked regions which sequentially increase from said reference stacked region or projected three-dimensional image number when the advance moving-picture designation is inputted but in order of stacked regions which sequentially decrease from said reference stacked region or projected three-dimensional image number when the reverse moving-picture designation is inputted.
Claim 19
Dependent Claim
25 words
A moving-picture display apparatus according to claim 13, further comprising means for displaying determined projected three-dimensional images on said display screen on real time base.
References Cited (Backward Citations)
US4975973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-03 | 2000-06-03 | 2000-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-03 | 2004-06-03 | 2004-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-03 | 2008-06-03 | 2008-12-03 | $7700.00 | Window Closed / Lapsed |