JPH02140194U - - Google Patents
Info
- Publication number
- JPH02140194U JPH02140194U JP4490789U JP4490789U JPH02140194U JP H02140194 U JPH02140194 U JP H02140194U JP 4490789 U JP4490789 U JP 4490789U JP 4490789 U JP4490789 U JP 4490789U JP H02140194 U JPH02140194 U JP H02140194U
- Authority
- JP
- Japan
- Prior art keywords
- area
- circuit
- aspect ratio
- calculates
- random number
- 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
- 230000005484 gravity Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000003331 infrared imaging Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例の構成を示す図、
第２図は従来の目標選択装置の構成の一例を示す
図、第３図は第２図における領域検出回路７によ
り検出された領域の一例を示す図であつて、１は
入力光、２は結像光学系、３は赤外撮像素子、４
はアナログビデオ信号、５はＡ／Ｄコンバータ、
６はデイジタルビデオ信号、７は領域検出回路、
８は領域毎の画素信号、９は領域アスペクト比計
測回路、１０は領域毎のアスペクト比、１１は領
域番号、１２はソーテイング回路、１３は選択さ
れた領域番号、１４は領域重心計測回路、１５は
選択された目標の重心座標、２１は画面内の領域
数、２２は乱数発生回路、２３は乱数、２４は並
べ変えられた領域番号、２５は領域選択回路であ
る。なお、図中同一あるいは相当部分には同一符
号を付して示してある。
FIG. 1 is a diagram showing the configuration of an embodiment of this invention.
FIG. 2 is a diagram showing an example of the configuration of a conventional target selection device, and FIG. 3 is a diagram showing an example of the area detected by the area detection circuit 7 in FIG. Imaging optical system, 3 is an infrared image sensor, 4
is an analog video signal, 5 is an A/D converter,
6 is a digital video signal, 7 is an area detection circuit,
8 is a pixel signal for each region, 9 is a region aspect ratio measurement circuit, 10 is an aspect ratio for each region, 11 is a region number, 12 is a sorting circuit, 13 is a selected region number, 14 is a region gravity center measurement circuit, 15 is the barycentric coordinate of the selected target, 21 is the number of areas in the screen, 22 is a random number generation circuit, 23 is a random number, 24 is the rearranged area number, and 25 is an area selection circuit. It should be noted that the same or corresponding parts in the figures are indicated by the same reference numerals.
Claims (1)
手段とからなる目標選択装置において、上記赤外
撮像素子が出力する画素信号を領域毎に分割する
領域検出回路と、この領域検出回路が出力する領
域毎の画素信号から領域毎のアスペクト比を計算
する領域アスペクト比計測回路と、この領域アス
ペクト比計測回路が出力する領域毎のアスペクト
比の大きい順番に領域番号を並べ変えるソーテイ
ング回路と、乱数を発生する乱数発生回路と、上
記乱数に基づいて領域番号を選択する領域選択回
路と、この領域選択回路が出力する領域番号に相
当する領域の重心点座標を計算する領域重心計測
回路とを備えたことを特徴とする目標選択装置。 A target selection device comprising an imaging optical system, an infrared imaging device, and an image signal processing means, comprising: a region detection circuit that divides a pixel signal outputted by the infrared imaging device into regions; an area aspect ratio measuring circuit that calculates the aspect ratio of each area from a pixel signal of each area to be output; a sorting circuit that rearranges area numbers in descending order of aspect ratio of each area outputted by the area aspect ratio measuring circuit; A random number generation circuit that generates random numbers, an area selection circuit that selects an area number based on the random number, and an area centroid measurement circuit that calculates the coordinates of the center of gravity of the area corresponding to the area number output by the area selection circuit. A target selection device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4490789U JPH02140194U (en) | 1989-04-17 | 1989-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4490789U JPH02140194U (en) | 1989-04-17 | 1989-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140194U true JPH02140194U (en) | 1990-11-22 |
Family
ID=31558623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4490789U Pending JPH02140194U (en) | 1989-04-17 | 1989-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140194U (en) |
-
1989
- 1989-04-17 JP JP4490789U patent/JPH02140194U/ja active Pending
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