JP2000013657A5 - Imaging device and control method of imaging device - Google Patents
Imaging device and control method of imaging device Download PDFInfo
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- JP2000013657A5 JP2000013657A5 JP1998173005A JP17300598A JP2000013657A5 JP 2000013657 A5 JP2000013657 A5 JP 2000013657A5 JP 1998173005 A JP1998173005 A JP 1998173005A JP 17300598 A JP17300598 A JP 17300598A JP 2000013657 A5 JP2000013657 A5 JP 2000013657A5
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- 238000003384 imaging method Methods 0.000 title claims description 11
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000001360 synchronised Effects 0.000 description 1
Description
【０００１】
【発明の属する技術分野】
本発明は、ビデオカメラ等の撮像装置及びこの撮像装置の制御方法に関し、特にビデオカメラが備えるスピードライトの発光の制御に関するものである。
[0001]
[Technical field to which the invention belongs]
The present invention relates to an image pickup device such as a video camera and a control method of the image pickup device, and more particularly to control of light emission of a speedlight included in the video camera.
本発明は上記の問題を解決するもので、飛び越し走査方式による画像にスピードライトの照明効果を安定させることを目的とする。 The present invention solves the above-mentioned problems, and an object of the present invention is to stabilize the illumination effect of a speedlight on an image obtained by an interlaced scanning method.
【０００６】
【課題を解決するための手段】
本発明の撮像装置は、第１の走査方式および第２の走査方式にて画像信号を読み出すことが可能な画像信号走査手段と、上記第１の走査方式または上記第２の走査方式のいずれかを選択する選択手段と、上記選択手段により選択された走査方式にて上記画像信号走査手段に画像信号の読み出しを行わせるとともに、被写体に発光を行う発光手段の発光方法を当該走査方式に応じて変更させる制御手段とを有することを特徴とする。
0006
[Means for solving problems]
The image pickup apparatus of the present invention comprises an image signal scanning means capable of reading an image signal by the first scanning method and the second scanning method, and either the first scanning method or the second scanning method. The image signal scanning means is made to read out the image signal by the selection means for selecting the above and the scanning method selected by the selection means, and the light emitting method of the light emitting means for emitting light to the subject is determined according to the scanning method. It is characterized by having a control means for changing.
また、本発明の撮像装置の制御方法は、第１の走査方式および第２の走査方式にて画像信号を読み出すことが可能な画像信号走査手段を有する撮像装置の制御方法であって、上記第１の走査方式または上記第２の走査方式のいずれかを選択する選択工程と、上記選択工程で選択された走査方式にて上記画像信号走査手段に画像信号の読み出しを行わせるとともに、被写体に発光手段により発光を行う発光工程の発光方法を当該走査方式に応じて変更させる制御工程とを有することを特徴とする。 Further, the control method of the image pickup apparatus of the present invention is a control method of an image pickup apparatus having an image signal scanning means capable of reading out an image signal by the first scanning method and the second scanning method, and is described above. In the selection step of selecting either the scanning method 1 or the second scanning method, and the scanning method selected in the selection step, the image signal scanning means reads out the image signal, and the subject emits light. It is characterized by having a control step of changing the light emitting method of the light emitting step in which light is emitted by means according to the scanning method.
以上のようにして本実施の形態では、１フレーム分の画像を線順次走査で撮影するモードと飛越し走査で撮影するモードとが切り替え可能なビデオカメラシステムにおいて、各走査方式の切り替えに応じて調光用スピードライトの発光方式を切り替えることにより、いずれの走査方式で取り込んだ１フレームのスチル画像に対しても、スピードライトの照明効果を安定させることができる。 As described above, in the present embodiment, in a video camera system capable of switching between a mode in which an image for one frame is photographed by line sequential scanning and a mode in which an image for one frame is photographed by interlaced scanning can be switched, depending on the switching of each scanning method. By switching the light emission method of the dimming speedlight, the illumination effect of the speedlight can be stabilized even for a one-frame still image captured by any scanning method.
これをＩＥＥＥ１３９４信号入出力２１９、ＩＥＥＥ１３９４ディジタルインターフェース２１７を通じて受信したカメラモードマイコン２０５は、スピードライト制御回路２１０にスピードライト２１１が発光できるように充電動作を制御する。このとき、コンピュータ３０２より発信されたステータスコマンド（表２「ＶＩＤＥＯ ＬＩＧＨＴ／ＳＴＲＯＢＥ」２０００５）に対するカメラモードマイコン２０５からのレスポンス信号により、コンピュータのモニタ上には、線順次走査による撮影方式のときは図７（ａ）の５１８、飛越走査による撮影方式のときは図７（ｂ）の５１９のように表示される。 The camera mode microcomputer 205 that receives this through the IEEE 1394 signal input / output 219 and the IEEE 1394 digital interface 217 controls the charging operation so that the speed light 211 can emit light to the speed light control circuit 210. At this time, according to the response signal from the camera mode microcomputer 205 to the status command (Table 2 “VIDEO LIGHT / STROBE” 20005) transmitted from the computer 302, the figure is shown on the computer monitor in the case of the shooting method by line sequential scanning. 518 in 7 (a), 519 in FIG. 7 (b) in the case of the photographing method by jump scanning.
以上のように本実施の形態では、１フレーム分の画像を線順次走査で撮影するモードと飛越し走査で撮影するモードとを備えるビデオカメラシステムにおいて、各走査方式の切り替え状態を記録保持しているレジスタを参照し、それに応じてそれぞれの走査方式で撮影するときに同調させる調光用スピードライトの発光方式を切り替えることにより、いずれの走査方式で取り込んだ１フレームのスチル画像に対しても、スピードライトの発光効果を安定させることができる。
特に、線順次走査方式のときは１フレームに１回発光させ、飛び越し走査方式のときは１フィールドで１回ずつ発光させることにより、従来のように飛び越し走査方式のときに、発光しているフィールドの画像と発光していないフィールドの画像とが１フレーム内に混在して画像が乱れることをなくすことができる。
また、コンピュータ等の外部機器を接続して信号を送受信することにより、撮像方式の選択、制御や発光手段の使用の指示等を外部機器から行うようにすることができる。
As described above, in the present embodiment, in the video camera system including the mode of capturing an image for one frame by line sequential scanning and the mode of capturing by skip scanning, the switching state of each scanning method is recorded and held. By referring to the existing register and switching the light emission method of the dimming speedlight that is synchronized when shooting with each scanning method, the speedlight can be used for one frame of still images captured by any scanning method. It is possible to stabilize the light emitting effect of.
In particular, in the case of the line sequential scanning method, the light is emitted once per frame, and in the case of the jump scanning method, the light is emitted once in one field. It is possible to prevent the image of the above and the image of the field that is not emitting light from being mixed in one frame and being distorted.
Further, by connecting an external device such as a computer to transmit and receive signals, it is possible to select an imaging method, control, and instruct the use of a light emitting means from the external device.
Claims (10)
上記第１の走査方式または上記第２の走査方式のいずれかを選択する選択手段と、
上記選択手段により選択された走査方式にて上記画像信号走査手段に画像信号の読み出しを行わせるとともに、被写体に発光を行う発光手段の発光方法を当該走査方式に応じて変更させる制御手段とを有することを特徴とする撮像装置。Image signal scanning means capable of reading out an image signal by the first scanning method and the second scanning method;
Selecting means for selecting either the first scanning method or the second scanning method;
Control means for causing the image signal scanning means to read out the image signal by the scanning method selected by the selection means and to change the light emitting method of the light emitting means for emitting light to the subject according to the scanning method. An imaging apparatus characterized by that.
上記第１の走査方式または上記第２の走査方式のいずれかを選択する選択工程と、
上記選択工程で選択された走査方式にて上記画像信号走査手段に画像信号の読み出しを行わせるとともに、被写体に発光手段により発光を行う発光工程の発光方法を当該走査方式に応じて変更させる制御工程とを有することを特徴とする撮像装置の制御方法。A method for controlling an imaging apparatus having an image signal scanning unit capable of reading an image signal by a first scanning method and a second scanning method,
A selection step of selecting either the first scanning method or the second scanning method;
A control step of causing the image signal scanning unit to read out the image signal by the scanning method selected in the selection step and changing a light emitting method of the light emitting step of causing the subject to emit light by the light emitting unit according to the scanning method. And a method of controlling the imaging apparatus.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17300598A JP4235281B2 (en) | 1998-06-19 | 1998-06-19 | IMAGING DEVICE AND IMAGING DEVICE CONTROL METHOD |
| US09/324,163 US6850282B1 (en) | 1998-06-02 | 1999-06-02 | Remote control of image sensing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17300598A JP4235281B2 (en) | 1998-06-19 | 1998-06-19 | IMAGING DEVICE AND IMAGING DEVICE CONTROL METHOD |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000013657A JP2000013657A (en) | 2000-01-14 |
| JP2000013657A5 true JP2000013657A5 (en) | 2005-10-20 |
| JP4235281B2 JP4235281B2 (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP17300598A Expired - Fee Related JP4235281B2 (en) | 1998-06-02 | 1998-06-19 | IMAGING DEVICE AND IMAGING DEVICE CONTROL METHOD |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100809286B1 (en) | 2006-12-09 | 2008-03-07 | 이구 | Video signal processing device of security camera |
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