FR2175719B1 - - Google Patents
Info
- Publication number
- FR2175719B1 FR2175719B1 FR7230737A FR7230737A FR2175719B1 FR 2175719 B1 FR2175719 B1 FR 2175719B1 FR 7230737 A FR7230737 A FR 7230737A FR 7230737 A FR7230737 A FR 7230737A FR 2175719 B1 FR2175719 B1 FR 2175719B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/46—Systems using spatial filters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Image Analysis (AREA)
- Character Discrimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD161563A DD95291A1 (ja) | 1972-03-16 | 1972-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2175719A1 FR2175719A1 (ja) | 1973-10-26 |
FR2175719B1 true FR2175719B1 (ja) | 1976-08-13 |
Family
ID=5485748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7230737A Expired FR2175719B1 (ja) | 1972-03-16 | 1972-08-30 |
Country Status (3)
Country | Link |
---|---|
DD (1) | DD95291A1 (ja) |
DE (1) | DE2304232A1 (ja) |
FR (1) | FR2175719B1 (ja) |
-
1972
- 1972-03-16 DD DD161563A patent/DD95291A1/xx unknown
- 1972-08-30 FR FR7230737A patent/FR2175719B1/fr not_active Expired
-
1973
- 1973-01-29 DE DE2304232A patent/DE2304232A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DD95291A1 (ja) | 1973-01-22 |
DE2304232A1 (de) | 1973-09-27 |
FR2175719A1 (ja) | 1973-10-26 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |