JPS6432171A - Speed measuring instrument by image processing - Google Patents
Speed measuring instrument by image processingInfo
- Publication number
- JPS6432171A JPS6432171A JP18764387A JP18764387A JPS6432171A JP S6432171 A JPS6432171 A JP S6432171A JP 18764387 A JP18764387 A JP 18764387A JP 18764387 A JP18764387 A JP 18764387A JP S6432171 A JPS6432171 A JP S6432171A
- Authority
- JP
- Japan
- Prior art keywords
- image
- speed
- constant
- memory
- moving body
- 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
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To easily and accurately obtain the speed of a moving body by inputting the prescribed position of the moving body as a video signals and measuring the speed from the prescribed time quantity of the shifting of the moving body image on a CRT screen. CONSTITUTION:The prescribed position (e.g. the tip of rod steel whose length is measured) of the body which moves at a constant speed is detected by a position detector 2 which uses laser light, etc., and its signal is used as a trigger to input an image by an ITV camera 3. This signal is A/D-converted 4 and stored in a memory 5, and the image is displayed on a CRT 7 through a CPU 6. Then the image of the tip position of the rod steel 1 which is a constant time later is inputted similarly and stored in another memory base of the memory 5, and then it is processed and recognized similarly. At this time, when the position relation of the optical system including the camera 3 is constant and video signal scanning conditions are constant, the quantity and required time of shifting are recognized from the data in the memory 5 through image processing because the length of the rod steel is measured previously, thereby calculating the speed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18764387A JPS6432171A (en) | 1987-07-29 | 1987-07-29 | Speed measuring instrument by image processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18764387A JPS6432171A (en) | 1987-07-29 | 1987-07-29 | Speed measuring instrument by image processing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432171A true JPS6432171A (en) | 1989-02-02 |
Family
ID=16209705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18764387A Pending JPS6432171A (en) | 1987-07-29 | 1987-07-29 | Speed measuring instrument by image processing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432171A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04169852A (en) * | 1990-11-02 | 1992-06-17 | Chubu Electric Power Co Inc | Method and apparatus for detecting image speed |
US6488996B1 (en) | 1997-12-24 | 2002-12-03 | Nippon Sheet Glass Co., Ltd. | Cushion spacer for glass plates and stack of glass plates |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5543458A (en) * | 1978-09-22 | 1980-03-27 | Nippon Hoso Kyokai <Nhk> | Moving speed measuring method of moving member in screen of television |
JPS5883270A (en) * | 1981-11-12 | 1983-05-19 | Fujitsu Ltd | Detector for movement of object to be picked up |
-
1987
- 1987-07-29 JP JP18764387A patent/JPS6432171A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5543458A (en) * | 1978-09-22 | 1980-03-27 | Nippon Hoso Kyokai <Nhk> | Moving speed measuring method of moving member in screen of television |
JPS5883270A (en) * | 1981-11-12 | 1983-05-19 | Fujitsu Ltd | Detector for movement of object to be picked up |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04169852A (en) * | 1990-11-02 | 1992-06-17 | Chubu Electric Power Co Inc | Method and apparatus for detecting image speed |
US6488996B1 (en) | 1997-12-24 | 2002-12-03 | Nippon Sheet Glass Co., Ltd. | Cushion spacer for glass plates and stack of glass plates |
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