FR2315730A1 - Procede et installation pour l'identification rapide a distance de caracteres presents sur un support d'emplacement variable - Google Patents
Procede et installation pour l'identification rapide a distance de caracteres presents sur un support d'emplacement variableInfo
- Publication number
- FR2315730A1 FR2315730A1 FR7519980A FR7519980A FR2315730A1 FR 2315730 A1 FR2315730 A1 FR 2315730A1 FR 7519980 A FR7519980 A FR 7519980A FR 7519980 A FR7519980 A FR 7519980A FR 2315730 A1 FR2315730 A1 FR 2315730A1
- Authority
- FR
- France
- Prior art keywords
- number plate
- television camera
- bands
- reading unit
- threshold circuit
- 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
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/24—Aligning, centring, orientation detection or correction of the image
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
- Image Analysis (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7519980A FR2315730A1 (fr) | 1975-06-25 | 1975-06-25 | Procede et installation pour l'identification rapide a distance de caracteres presents sur un support d'emplacement variable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7519980A FR2315730A1 (fr) | 1975-06-25 | 1975-06-25 | Procede et installation pour l'identification rapide a distance de caracteres presents sur un support d'emplacement variable |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2315730A1 true FR2315730A1 (fr) | 1977-01-21 |
FR2315730B1 FR2315730B1 (xx) | 1977-12-02 |
Family
ID=9157057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7519980A Granted FR2315730A1 (fr) | 1975-06-25 | 1975-06-25 | Procede et installation pour l'identification rapide a distance de caracteres presents sur un support d'emplacement variable |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2315730A1 (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809161A (en) * | 1992-03-20 | 1998-09-15 | Commonwealth Scientific And Industrial Research Organisation | Vehicle monitoring system |
-
1975
- 1975-06-25 FR FR7519980A patent/FR2315730A1/fr active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809161A (en) * | 1992-03-20 | 1998-09-15 | Commonwealth Scientific And Industrial Research Organisation | Vehicle monitoring system |
Also Published As
Publication number | Publication date |
---|---|
FR2315730B1 (xx) | 1977-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
ST | Notification of lapse | ||
TP | Transmission of property |