JPH0832009B2 - Imaging device - Google Patents
Imaging deviceInfo
- Publication number
- JPH0832009B2 JPH0832009B2 JP60224771A JP22477185A JPH0832009B2 JP H0832009 B2 JPH0832009 B2 JP H0832009B2 JP 60224771 A JP60224771 A JP 60224771A JP 22477185 A JP22477185 A JP 22477185A JP H0832009 B2 JPH0832009 B2 JP H0832009B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- mode
- image pickup
- optical system
- output
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、複数のモードを有する撮像装置に関するも
のである。TECHNICAL FIELD The present invention relates to an image pickup apparatus having a plurality of modes.
第５図は従来のVTR装置の概略を示すブロツク図であ
り、図において、１はシヤツター、２はハーフミラー、
4,5はヘツド、Ｓ−1,S−２は撮像素子（以下センサとい
う）、SW−３はスイツチ、Ｌはレンズである。FIG. 5 is a block diagram showing an outline of a conventional VTR device. In the figure, 1 is a shutter, 2 is a half mirror,
Reference numerals 4 and 5 are heads, S-1 and S-2 are image pickup elements (hereinafter referred to as sensors), SW-3 is a switch, and L is a lens.
従来のVTR装置は前記のように構成され、動画モード
においては、シヤツター１は開いて、映像はレンズＬ、
シヤツター１、ハーフミラー２を通してセンサＳ−1,S
−２にそれぞれ結像され、その２つの像は電気信号に変
換されて、そのまま１フイールド分の信号として用いら
れ、スイツチSW−３を交互に切換えて１フレームの信号
を構成し、これをそれぞれヘツド4,5によつて、１フイ
ールド分づつ１本のヘリカルトラツクに記録していた。The conventional VTR device is configured as described above, and in the moving image mode, the shutter 1 is open and the image is the lens L,
Sensors S-1, S through the shutter 1 and the half mirror 2
-2 respectively, the two images are converted into an electric signal and used as a signal for one field as they are, and the switch SW-3 is alternately switched to form a signal for one frame. Heads 4 and 5 were recording on one helical track for each one field.
前記のような従来の家庭用VTR装置は動画用に設計さ
れており、特にVTR装置としては静止画用にすることは
撮像画素数が少く、満足な画質が得られないという問題
点があつた。The conventional VTR device for home use as described above is designed for moving images, and especially when it is used for still images as a VTR device, there are problems that the number of image pickup pixels is small and satisfactory image quality cannot be obtained. .
本発明は、かかる問題点を解決するためになされたも
ので、動画モードと静止モードに対して最適な光学系に
より撮像し、高解像を得ることのできる撮像装置を得る
ことを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to obtain an image pickup device capable of obtaining a high resolution by taking an image with an optimal optical system for a moving image mode and a still mode. .
本発明に係る撮像装置は、被写体像を結像し、この結
像された被写体像を画像信号に変換する撮像手段と、動
画を撮像する動画モードと静止画を撮像する静止画モー
ドとを切り換えるモード切換手段と、前記撮像手段内に
設けられ、第１の位置と第２の位置とで変位可能であっ
て前記モード切換手段の出力に応じて変位する光学系
と、前記動画モードにおいては、第１の位置に変位した
光学系により形成される第１の像のみを撮像するように
前記撮像手段を駆動して、該撮像手段の出力を記憶し、
前記静止画モードにおいては、前記第１の像と、前記第
２の位置に変位した光学系により形成され前記第１の像
とは少なくとも水平方向にオフセットした関係にある第
２の像とを撮像するように前記撮像手段を駆動して、該
撮像手段の出力を記憶し、この記憶された２つの像を合
成する制御手段と、を設けることにより静止画モードに
おいて高解像を得ると共に動画モードにおいて消費電力
を低減したことを特徴とするものである。The image pickup apparatus according to the present invention switches between an image pickup means for forming a subject image and converting the formed subject image into an image signal, and a moving image mode for capturing a moving image and a still image mode for capturing a still image. In the moving image mode, a mode switching unit, an optical system provided in the image pickup unit, which is displaceable between a first position and a second position, and which is displaced according to an output of the mode switching unit, Driving the imaging means so as to capture only the first image formed by the optical system displaced to the first position, and storing the output of the imaging means,
In the still image mode, the first image and a second image formed by the optical system displaced to the second position and having a relationship offset from the first image at least in the horizontal direction are captured. And a control means for driving the image pickup means to store the output of the image pickup means and synthesizing the two stored images, thereby obtaining a high resolution in the still image mode and a moving image mode. It is characterized in that the power consumption is reduced.
本発明においては、モードの切り換えに応じて光学系
を最適化することで、動画モードでは消費電力を低減
し、静止画モードでは高解像で撮像を行うことができ
る。In the present invention, by optimizing the optical system according to the mode switching, it is possible to reduce power consumption in the moving image mode and perform high-resolution imaging in the still image mode.
第４図はRobsonが1966年に発表した視覚の時空間特性
を示す。この図から、時間周波数が零（静止画）の場合
と、零でない（動画）場合とでは空間周波数特性は前者
の方が広いということがわかる。したがつて、静止画を
撮る時は、撮像画素数を増す必要がある。Figure 4 shows the spatiotemporal characteristics of vision that Robson published in 1966. From this figure, it can be seen that the former has a wider spatial frequency characteristic when the temporal frequency is zero (still image) and when the temporal frequency is not zero (moving image). Therefore, when taking a still image, it is necessary to increase the number of image pickup pixels.
第１図はこの発明の一実施例を示すブロツク図であ
り、図において３はミラー、SW−1,SW−２はスイツチで
あり、第５図と同一符号は同一のものを示している。FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 3 is a mirror, SW-1 and SW-2 are switches, and the same reference numerals as those in FIG.
上記のように構成されたVTRカメラ装置において、動
画モードではシヤツター１は開、ハーフミラー２の接点
は2aの状態にある。映像はセンサＳ−１に結像されて電
気信号に変換される。スイツチSW−1,SW−２は共に接点
Ａに接続されており、CCDドライブ（この実施例ではセ
ンサとしてCCDを使用）、映像信号処理部は従来と同様
であり、その出力は第３図（ａ）に示す信号が出力され
る。In the VTR camera device configured as described above, the shutter 1 is open and the contact point of the half mirror 2 is 2a in the moving image mode. The image is formed on the sensor S-1 and converted into an electric signal. The switches SW-1 and SW-2 are both connected to the contact A, the CCD drive (a CCD is used as a sensor in this embodiment) and the video signal processing unit are the same as those of the conventional one, and the output thereof is shown in FIG. The signal shown in a) is output.
静止画モードでは、ハーフミラー２は2bの位置にな
り、シヤツター１は通常閉じており、露光時にのみ開
く。ここでは、ｎ＝２即ちセンサが２つの場合について
説明する。センサＳ−1,S−２の画素配列は第２図のよ
うになつており、互いに空間オフセツトされ、補間する
配列を示す。この動作シーケンスを第３図（ｂ）に示
す。In the still image mode, the half mirror 2 is in the position 2b, the shutter 1 is normally closed, and it is opened only during exposure. Here, a case where n = 2, that is, two sensors are described. The pixel arrays of the sensors S-1 and S-2 are as shown in FIG. 2, and the arrays are spatially offset from each other and interpolate. This operation sequence is shown in FIG.
時刻t1〜t2が露出期間でシヤツタは開く。その後SW−
1,SW−２はシーケンスコントロールにより接点Ａに接続
され、センサＳ−１から信号（Ｆ−１）S-1，（Ｆ−
２）S-1が読出され、次にスイツチSW−1,SW−２は接点
Ｂに接続され、信号（Ｆ−１）S-2，（Ｆ−２）S-2が読
出され、時刻t3で終了する。これら信号出力は動画モー
ドと同じ出力形式になるので、従来のVTRで記録可能で
ある。The shutter opens during the exposure period from time t 1 to t 2 . Then SW-
1, SW-2 is connected to the contact A by sequence control, and signals (F-1) S-1 and (F-
2) S-1 is read, switches SW-1 and SW-2 are then connected to contact B, signals (F-1) S-2 and (F-2) S-2 are read, and time t End with 3 . Since these signal outputs have the same output format as the movie mode, it can be recorded with a conventional VTR.
再生時はフレームメモリ（図示しない）を用いて、複
数の空間オフセツトされた信号を複数の前記フレームメ
モリ（この実施例の場合２つ）に、一時的に記憶させ、
前記各信号を前記フレームメモリから取出して合成して
第２図のパターンになる様にすればよい。At the time of reproduction, a frame memory (not shown) is used to temporarily store a plurality of spatially offset signals in the plurality of frame memories (two in this embodiment).
The signals may be taken out from the frame memory and combined to form the pattern shown in FIG.
以上説明したように、本発明の撮像装置によれば、被
写体像を結像し、この結像された被写体像を画像信号に
変換する撮像手段と、動画を撮像する動画モードと静止
画を撮像する静止画モードとを切り換えるモード切換手
段と、前記撮像手段内に設けられ、第１の位置と第２の
位置とで変位可能であって前記モード切換手段の出力に
応じて変位する光学系と、前記動画モードにおいては、
第１の位置に変位した光学系により形成される第１の像
のみを撮像するように前記撮像手段を駆動して、該撮像
手段の出力を記憶し、前記静止画モードにおいては、前
記第１の像と、前記第２の位置に変位した光学系により
形成され前記第１の像とは少なくとも水平方向にオフセ
ットした関係にある第２の像とを撮像するように前記撮
像手段を駆動して、該撮像手段の出力を記憶し、この記
憶された２つの像を合成する制御手段と、を設けること
により静止画モードにおいて高解像を得ると共に動画モ
ードにおいて消費電力を低減した。そして、モードの切
り換えに応じて光学系を最適化することで、動画モード
における消費電力を節約すると共に、高画質な静止画の
撮像を行うことができるようになった。As described above, according to the image pickup apparatus of the present invention, an image pickup means for forming a subject image and converting the formed subject image into an image signal, a moving image mode for capturing a moving image, and a still image are captured. A mode switching means for switching a still image mode to be operated, and an optical system provided in the imaging means, displaceable between a first position and a second position, and displaced according to an output of the mode switching means. , In the movie mode,
The image pickup means is driven so as to pick up only the first image formed by the optical system displaced to the first position, and the output of the image pickup means is stored. And the second image formed by the optical system displaced to the second position and having a relationship in which the first image is offset at least in the horizontal direction by driving the image pickup means. By providing the control means for storing the output of the image pickup means and synthesizing the two stored images, a high resolution is obtained in the still image mode and the power consumption is reduced in the moving image mode. Then, by optimizing the optical system according to the mode switching, it is possible to save power consumption in the moving image mode and to capture a high-quality still image.
第１図はこの発明の一実施例を示す概略説明図、第２図
は第１図のセンサの画素配列を示す図、第３図は第１図
の映像出力のタイミングチヤートで同図（ａ）は動画モ
ードを表わし、同図（ｂ）は静止画モードを表わし、第
４図は視覚の時空間特性を示す図、第５図は従来のVTR
装置の概略を示すブロツク図である。 図において、１はシヤツタ、２はハーフミラー、３はミ
ラー、Ｌはレンズ、Ｓ−1,S−２はセンサ、SW−1,SW−
２はスイツチである。FIG. 1 is a schematic explanatory view showing an embodiment of the present invention, FIG. 2 is a view showing a pixel array of the sensor of FIG. 1, and FIG. 3 is a timing chart of the video output of FIG. ) Represents a moving image mode, FIG. 4B represents a still image mode, FIG. 4 shows a visual spatiotemporal characteristic, and FIG. 5 shows a conventional VTR.
It is a block diagram which shows the outline of an apparatus. In the figure, 1 is a shutter, 2 is a half mirror, 3 is a mirror, L is a lens, S-1 and S-2 are sensors, and SW-1 and SW-.
2 is a switch.
Claims (1)
像を画像信号に変換する撮像手段と、 動画を撮像する動画モードと静止画を撮像する静止画モ
ードとを切り換えるモード切換手段と、 前記撮像手段内に設けられ、第１の位置と第２の位置と
で変位可能であって前記モード切換手段の出力に応じて
変位する光学系と、 前記動画モードにおいては、第１の位置に変位した光学
系により形成される第１の像のみを撮像するように前記
撮像手段を駆動して、該撮像手段の出力を記憶し、前記
静止画モードにおいては、前記第１の像と、前記第２の
位置に変位した光学系により形成され前記第１の像とは
少なくとも水平方向にオフセットした関係にある第２の
像とを撮像するように前記撮像手段を駆動して、該撮像
手段の出力を記憶し、この記憶された２つの像を合成す
る制御手段と、を設けることにより静止画モードにおい
て高解像を得ると共に動画モードにおいて消費電力を低
減したことを特徴とする撮像装置。1. A mode switching means for switching an image pickup means for forming a subject image and converting the formed subject image into an image signal, and a moving image mode for capturing a moving image and a still image mode for capturing a still image. An optical system which is provided in the image pickup means, is displaceable between a first position and a second position, and is displaced according to the output of the mode switching means; The image pickup means is driven so as to pick up only the first image formed by the optical system displaced to the position, and the output of the image pickup means is stored. , The image pickup means is driven so as to pick up a second image which is formed by the optical system displaced to the second position and which is at least horizontally offset from the first image. Memorize the output of the means Imaging apparatus characterized by reduced power consumption in the moving image mode with obtaining and controlling means for combining two images is, the high resolution in the still image mode by providing a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224771A JPH0832009B2 (en) | 1985-10-11 | 1985-10-11 | Imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224771A JPH0832009B2 (en) | 1985-10-11 | 1985-10-11 | Imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6285584A JPS6285584A (en) | 1987-04-20 |
| JPH0832009B2 true JPH0832009B2 (en) | 1996-03-27 |
Family
ID=16818959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60224771A Expired - Fee Related JPH0832009B2 (en) | 1985-10-11 | 1985-10-11 | Imaging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832009B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105780A (en) * | 1982-12-10 | 1984-06-19 | Canon Inc | Imaging device |
| JPS6042985A (en) * | 1983-08-19 | 1985-03-07 | Konishiroku Photo Ind Co Ltd | Video camera |
| JPS60105384A (en) * | 1983-11-11 | 1985-06-10 | Matsushita Electric Ind Co Ltd | Picture recording and reproducing device |
-
1985
- 1985-10-11 JP JP60224771A patent/JPH0832009B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6285584A (en) | 1987-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |