CA2043176A1 - Quantification de l'axe des z pour lignes tridimensionnelles - Google Patents
Quantification de l'axe des z pour lignes tridimensionnellesInfo
- Publication number
- CA2043176A1 CA2043176A1 CA2043176A CA2043176A CA2043176A1 CA 2043176 A1 CA2043176 A1 CA 2043176A1 CA 2043176 A CA2043176 A CA 2043176A CA 2043176 A CA2043176 A CA 2043176A CA 2043176 A1 CA2043176 A1 CA 2043176A1
- Authority
- CA
- Canada
- Prior art keywords
- line
- pixels
- value
- considered
- delta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/10—Geometric effects
- G06T15/40—Hidden part removal
- G06T15/405—Hidden part removal using Z-buffer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Computer Graphics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Generation (AREA)
- Digital Computer Display Output (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54662490A | 1990-06-29 | 1990-06-29 | |
US546,624 | 1990-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2043176A1 true CA2043176A1 (fr) | 1991-12-30 |
CA2043176C CA2043176C (fr) | 1995-09-26 |
Family
ID=24181268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002043176A Expired - Fee Related CA2043176C (fr) | 1990-06-29 | 1991-05-24 | Quantification de l'axe des z pour lignes tridimensionnelles |
Country Status (4)
Country | Link |
---|---|
US (1) | US5271094A (fr) |
EP (1) | EP0465036A3 (fr) |
JP (1) | JPH07118025B2 (fr) |
CA (1) | CA2043176C (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5999184A (en) * | 1990-10-30 | 1999-12-07 | 3D Systems, Inc. | Simultaneous multiple layer curing in stereolithography |
US5379370A (en) * | 1992-07-17 | 1995-01-03 | International Business Machines Corporation | Method and apparatus for drawing lines, curves, and points coincident with a surface |
US5621866A (en) * | 1992-07-24 | 1997-04-15 | Fujitsu Limited | Image processing apparatus having improved frame buffer with Z buffer and SAM port |
US5515484A (en) * | 1993-10-06 | 1996-05-07 | Silicon Graphics, Inc. | Method and apparatus for rendering volumetric images |
US5854631A (en) * | 1995-11-22 | 1998-12-29 | Silicon Graphics, Inc. | System and method for merging pixel fragments based on depth range values |
US5933156A (en) * | 1997-12-03 | 1999-08-03 | Margolin; Jed | Z-Buffer for row addressable graphics memory with flash fill |
US6226003B1 (en) * | 1998-08-11 | 2001-05-01 | Silicon Graphics, Inc. | Method for rendering silhouette and true edges of 3-D line drawings with occlusion |
US6674894B1 (en) | 1999-04-20 | 2004-01-06 | University Of Utah Research Foundation | Method and apparatus for enhancing an image using data optimization and segmentation |
JP4390574B2 (ja) * | 2003-03-31 | 2009-12-24 | 富士通株式会社 | 複数のポリゴンから構成される3次元モデルを2次元平面に投影する際の陰線を消去する陰線処理方法 |
JP2005100176A (ja) * | 2003-09-25 | 2005-04-14 | Sony Corp | 画像処理装置およびその方法 |
US8279222B2 (en) | 2008-03-14 | 2012-10-02 | Seiko Epson Corporation | Processing graphics data for a stereoscopic display |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4730261A (en) * | 1983-10-25 | 1988-03-08 | Ramtek Corporation | Solids modelling generator |
US4625289A (en) * | 1985-01-09 | 1986-11-25 | Evans & Sutherland Computer Corp. | Computer graphics system of general surface rendering by exhaustive sampling |
CA1274919C (fr) * | 1985-07-27 | 1990-10-02 | Methode et dispositif de formage de surfaces galbees | |
JPH0756678B2 (ja) * | 1985-11-01 | 1995-06-14 | 株式会社日立製作所 | 対話形形状モデリングシステム |
JPS62165279A (ja) * | 1986-01-17 | 1987-07-21 | Fanuc Ltd | 図形抽出方式 |
US4841292A (en) * | 1986-08-11 | 1989-06-20 | Allied-Signal Inc. | Third dimension pop up generation from a two-dimensional transformed image display |
US4855934A (en) * | 1986-10-03 | 1989-08-08 | Evans & Sutherland Computer Corporation | System for texturing computer graphics images |
US4808986A (en) * | 1987-02-12 | 1989-02-28 | International Business Machines Corporation | Graphics display system with memory array access |
US4985855A (en) * | 1987-08-24 | 1991-01-15 | International Business Machines Corp. | Method for producing installation instructions for three dimensional assemblies |
US5084830A (en) * | 1987-10-26 | 1992-01-28 | Tektronix, Inc. | Method and apparatus for hidden surface removal |
US4855938A (en) * | 1987-10-30 | 1989-08-08 | International Business Machines Corporation | Hidden line removal method with modified depth buffer |
US4918626A (en) * | 1987-12-09 | 1990-04-17 | Evans & Sutherland Computer Corp. | Computer graphics priority system with antialiasing |
US5245700A (en) * | 1989-11-21 | 1993-09-14 | International Business Machines Corporation | Adjustment of z-buffer values for lines on the surface of a polygon |
-
1991
- 1991-05-10 JP JP3133232A patent/JPH07118025B2/ja not_active Expired - Lifetime
- 1991-05-24 CA CA002043176A patent/CA2043176C/fr not_active Expired - Fee Related
- 1991-06-14 EP EP19910305397 patent/EP0465036A3/en not_active Withdrawn
-
1993
- 1993-01-21 US US08/007,379 patent/US5271094A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0465036A2 (fr) | 1992-01-08 |
JPH04233088A (ja) | 1992-08-21 |
EP0465036A3 (en) | 1993-08-04 |
JPH07118025B2 (ja) | 1995-12-18 |
CA2043176C (fr) | 1995-09-26 |
US5271094A (en) | 1993-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20020524 |