JPS5642871A - Detecting device for picture shift component - Google Patents
Detecting device for picture shift componentInfo
- Publication number
- JPS5642871A JPS5642871A JP11897479A JP11897479A JPS5642871A JP S5642871 A JPS5642871 A JP S5642871A JP 11897479 A JP11897479 A JP 11897479A JP 11897479 A JP11897479 A JP 11897479A JP S5642871 A JPS5642871 A JP S5642871A
- Authority
- JP
- Japan
- Prior art keywords
- operation circuit
- shift
- centroid
- back edge
- data
- 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.)
- Pending
Links
Landscapes
- Image Analysis (AREA)
Abstract
PURPOSE: To ensure an accurate detection for the velocity vector of the shifting picture data, by obtaining both the direction and the shift extent of the straight line connecting the centroids of both the front and back edge images each which are proportional to the shift velocity.
CONSTITUTION: The data D (ji) having the address (i,j) is grouped into D+(i,j) and D-(i,j) according to the front and back edge images, and the X and Y coordinates corresponding to the address (i,j) are defined as X(i,j) and Y(i,j) each. Then all data of the picture memory 1 are supplied to the centroid operation circuit 2 to obtain the centroid coordinates GF(XG+, YG+) and GA(XG-, YG-) of the front and back edge images each. Then the angle formed by the straight line connecting each centroid and the coordinate axis, i.e., the shift direction θ is obtained by the angle operation circuit 3. Furthermore, the shift extent V is obtained by the coordinate rotation operation circuit 4 and the deflection operation circuit 5 each. In such way, an automatic and accurate detection is secured for the velocity vector of the shifting picture data.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11897479A JPS5642871A (en) | 1979-09-17 | 1979-09-17 | Detecting device for picture shift component |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11897479A JPS5642871A (en) | 1979-09-17 | 1979-09-17 | Detecting device for picture shift component |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642871A true JPS5642871A (en) | 1981-04-21 |
Family
ID=14749880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11897479A Pending JPS5642871A (en) | 1979-09-17 | 1979-09-17 | Detecting device for picture shift component |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642871A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6043780A (en) * | 1983-08-22 | 1985-03-08 | Akira Kawabata | Multi-purpose detector |
JPS6280557A (en) * | 1985-10-04 | 1987-04-14 | Hitachi Ltd | Monitoring device for poisonous substance inflow |
JPH03175364A (en) * | 1989-12-02 | 1991-07-30 | Ezel Inc | Measuring apparatus for flow velocity |
-
1979
- 1979-09-17 JP JP11897479A patent/JPS5642871A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6043780A (en) * | 1983-08-22 | 1985-03-08 | Akira Kawabata | Multi-purpose detector |
JPH02747B2 (en) * | 1983-08-22 | 1990-01-09 | Akira Kawabata | |
JPS6280557A (en) * | 1985-10-04 | 1987-04-14 | Hitachi Ltd | Monitoring device for poisonous substance inflow |
JPH0531941B2 (en) * | 1985-10-04 | 1993-05-13 | Hitachi Ltd | |
JPH03175364A (en) * | 1989-12-02 | 1991-07-30 | Ezel Inc | Measuring apparatus for flow velocity |
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