JPH03113499U - - Google Patents
Info
- Publication number
- JPH03113499U JPH03113499U JP2277490U JP2277490U JPH03113499U JP H03113499 U JPH03113499 U JP H03113499U JP 2277490 U JP2277490 U JP 2277490U JP 2277490 U JP2277490 U JP 2277490U JP H03113499 U JPH03113499 U JP H03113499U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- image
- video signal
- converter
- detection unit
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Closed-Circuit Television Systems (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図は従来の画像処理型交通流計測装置を示す構
成図、第３図は従来のＴＶカメラからの入力画面
及び階調特性を示す説明図、第４図はこの考案の
ＴＶカメラからの入力画面及び階調特性を示す説
明図である。図において１はＴＶカメラ、２はビ
デオアンプ、３はＡ／Ｄコンバータ、４は画像メ
モリ、５は車両検出部、６は交通データ計測処理
部、７はビデオ信号入力、８は交通データ、９は
垂直方向バイアス発生器、１０は加算器、Ａはビ
デオ信号階調特性、Ｂは垂直方向バイアス特性、
Ｃは加算器出力特性である。尚、各図中同一符号
は同一または相当部分を示す。
Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a block diagram showing a conventional image processing type traffic flow measurement device, and Fig. 3 shows an input screen and gradation characteristics from a conventional TV camera. FIG. 4 is an explanatory diagram showing the input screen and gradation characteristics from the TV camera of this invention. In the figure, 1 is a TV camera, 2 is a video amplifier, 3 is an A/D converter, 4 is an image memory, 5 is a vehicle detection section, 6 is a traffic data measurement processing section, 7 is a video signal input, 8 is traffic data, 9 is a vertical bias generator, 10 is an adder, A is a video signal gradation characteristic, B is a vertical bias characteristic,
C is the adder output characteristic. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
幅するビデオアンプと、ビデオ信号をデジタル信
号に変換するＡ／Ｄコンバータと、Ａ／Ｄコンバ
ータのデジタル信号を静止画像としてメモリする
画像メモリと、画像メモリの画像から車両の特徴
点を検出する車両検出部と、車両検出部で検出し
た車両位置を基に車両の走行速度等を計測する交
通データ計測処理部とから成る画像処理装置にお
いて、画面内垂直方向のビデオ信号の階調特性を
補正する垂直方向バイアス発生器と、加算器を備
えたことを特徴とする画像処理装置。 A video amplifier that amplifies a video signal captured by a running vehicle from a TV camera, an A/D converter that converts the video signal into a digital signal, an image memory that stores the digital signal of the A/D converter as a still image, and an image memory. In an image processing device consisting of a vehicle detection unit that detects feature points of a vehicle from an image, and a traffic data measurement processing unit that measures vehicle running speed etc. based on the vehicle position detected by the vehicle detection unit, An image processing device comprising: a vertical bias generator for correcting gradation characteristics of a video signal; and an adder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2277490U JPH03113499U (en) | 1990-03-07 | 1990-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2277490U JPH03113499U (en) | 1990-03-07 | 1990-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03113499U true JPH03113499U (en) | 1991-11-20 |
Family
ID=31525784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2277490U Pending JPH03113499U (en) | 1990-03-07 | 1990-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03113499U (en) |
-
1990
- 1990-03-07 JP JP2277490U patent/JPH03113499U/ja active Pending
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