JPH05284280A - High resolution image scanner - Google Patents
High resolution image scannerInfo
- Publication number
- JPH05284280A JPH05284280A JP3325843A JP32584391A JPH05284280A JP H05284280 A JPH05284280 A JP H05284280A JP 3325843 A JP3325843 A JP 3325843A JP 32584391 A JP32584391 A JP 32584391A JP H05284280 A JPH05284280 A JP H05284280A
- Authority
- JP
- Japan
- Prior art keywords
- sensors
- high resolution
- sensor
- vertical direction
- resolution image
- 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.)
- Withdrawn
Links
Landscapes
- Stereoscopic And Panoramic Photography (AREA)
- Image Input (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高解像度イメージスキャ
ナ、特に、デザインワーク、コンピュターグラフィック
などの画像入力用の高解像度イメージスキャナに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high resolution image scanner, and more particularly to a high resolution image scanner for inputting images such as design works and computer graphics.
【０００２】[0002]
【従来の技術】従来の高解像度イメージスキャナについ
て図面を参照して詳細に説明する。図５は、従来の一例
を示すブロック図である。2. Description of the Related Art A conventional high resolution image scanner will be described in detail with reference to the drawings. FIG. 5 is a block diagram showing a conventional example.
【０００３】図５に示す高解像度イメージスキャナは、
ラインイメージ型固体撮像素子10とラインイメージ型固
体撮像素子１０を基本タイミングに従って動作させる固
体素子駆動部11とラインイメージ型固体撮像素子１０の
メカニカルな送り機構12とを有している。The high resolution image scanner shown in FIG.
It has a line image type solid-state image pickup device 10, a solid-state element drive unit 11 for operating the line image type solid-state image pickup device 10 according to basic timing, and a mechanical feed mechanism 12 of the line image type solid-state image pickup device 10.
【０００４】ここで、先ず固体素子駆動部11の基本タイ
ミングに従って、ラインイメージ型固体撮像素子10で１
ライン分のイメージが取り込まれると、固体素子駆動部
11からの１ライン読み込み終了信号によりメカニカルな
送り機構12によりラインイメージ型固体撮像素子は、次
の読みとり位置へステップ駆動される。このよにして読
み込まれた、イメージは、画像メモリ上に蓄積され映像
データとして出力される。First, the line image type solid-state image pickup device 10 is operated in accordance with the basic timing of the solid-state drive unit 11.
When the line image is captured, the solid-state drive unit
The line image type solid-state imaging device is step-driven to the next reading position by the mechanical feed mechanism 12 in response to the 1-line reading completion signal from 11. The image thus read is stored in the image memory and output as video data.
【０００５】[0005]
【発明が解決しようとする課題】上述した従来の高解像
度イメージスキャナは、ラインイメージ型固体撮像素子
をメカニカルにステップ走査し、水平方向を電子的に分
割、垂直方向を機械的に分割して高解像度を得ているた
め、１画面当たりの読み取り速度が機械的走査時間だけ
遅くなり、また水平方向と、垂直方向の同期を同期を取
らなければいけないのような問題があった。The above-mentioned conventional high resolution image scanner mechanically scans the line image type solid-state image pickup device electronically in the horizontal direction and mechanically in the vertical direction to increase the height. Since the resolution is obtained, the reading speed per screen is reduced by the mechanical scanning time, and there is a problem that the horizontal and vertical directions must be synchronized.
【０００６】[0006]
【課題を解決するための手段】本発明の高解像度イメー
ジスキャナは、入射光を２分割するハーフミラーと、該
ハーフミラーで２分割した入射光に対して同一光路上に
光電変換素子の配置間隔の1/2 だけ水平方向あるいは垂
直方向にずらしてそれぞれ配置した２個の光電変換素子
と、該２個の光電変換素子の信号を合成する信号合成器
とを含んで構成される。A high resolution image scanner according to the present invention comprises a half mirror which divides incident light into two and an arrangement interval of photoelectric conversion elements on the same optical path with respect to the incident light divided into two by the half mirror. It is configured to include two photoelectric conversion elements which are respectively shifted by 1/2 of the above in the horizontal direction or the vertical direction and a signal combiner which combines the signals of the two photoelectric conversion elements.
【０００７】[0007]
【実施例】次に、本発明について図面を参照して詳細に
説明する。図１は本発明の一実施例を示すブロック図で
ある。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.
【０００８】図１に示す高解像度イメージスキャナへの
入射光は、ハーフミラー４で２分割され、面型固体撮像
素子で構成されるセンサＡ１、センサＢ２へ入射する。
ここでセンサＡ１、センサＢ２は、水平方向あるいは垂
直方向に素子配置の1/2 だけずらして設置されている。
次に信号合成器３で、センサＡ１、センサＢ２からの映
像信号は、水平方向にずらして設置された場合には水平
方向に合成され、垂直方向にずらして設置された場合に
は垂直方向に互い違いに組み込まれ、映像信号５として
出力される。図２（ａ），（ｂ）は、センサＡ１，セン
サＢ２が図４に示すように水平にずらして設置されたと
き任意の１ライン上でのセンサＡ１、センサＢ２の読み
とりを表す信号図である。センサＡ１のみでイメージを
捕らえ場合デジタルサンプリング誤差により、各撮像素
子の中間に有るエッジ部ａはぼけてしまうが、個の部分
は1 素子配置の/2だけずらして配置されたセンサＢによ
りシャープに捕らえられる。従って、センサＡ１、セン
サＢ２の信号を信号合成器３で合成し出力することによ
り、図３に示すように、水平方向に２倍の分解能でイメ
ージをスキャンできる。Light incident on the high resolution image scanner shown in FIG. 1 is divided into two by a half mirror 4 and is incident on a sensor A1 and a sensor B2 which are surface type solid state image pickup devices.
Here, the sensor A1 and the sensor B2 are installed so as to be displaced by half of the element arrangement in the horizontal direction or the vertical direction.
Next, in the signal synthesizer 3, the video signals from the sensors A1 and B2 are combined in the horizontal direction when they are installed horizontally offset, and in the vertical direction when they are installed vertically offset. They are alternately assembled and output as a video signal 5. 2 (a) and 2 (b) are signal diagrams showing reading of the sensor A1 and the sensor B2 on an arbitrary line when the sensor A1 and the sensor B2 are horizontally displaced as shown in FIG. is there. When the image is captured only by the sensor A1, the edge part a located in the middle of each image sensor is blurred due to the digital sampling error, but the individual parts are sharpened by the sensor B which is shifted by 1/2 of the one-element arrangement. To be captured. Therefore, by synthesizing and outputting the signals of the sensors A1 and B2 by the signal synthesizer 3, the image can be scanned in the horizontal direction with double the resolution as shown in FIG.
【０００９】垂直方向にずらしてセンサＡ１、センサＢ
２を設置した場合は水平方向と同様に垂直方向について
２倍の分解能でイメージをスキャンできる。The sensor A1 and the sensor B are vertically displaced from each other.
When 2 is installed, the image can be scanned with twice the resolution in the vertical direction as in the horizontal direction.
【００１０】[0010]
【発明の効果】本発明の高解像度イメージスキャナは、
面型固体撮像素子を各撮像素子の配置間隔の1/2 だけ水
平または垂直にずらして配置することで、ずらして配置
してた方向に対して２倍の分解能を機械的走査無しに得
ることが出来るという効果を有する。The high resolution image scanner of the present invention is
By arranging the surface-type solid-state image sensor horizontally or vertically by ½ of the interval between the image sensors, it is possible to obtain twice the resolution in the displaced direction without mechanical scanning. It has the effect that
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】（ａ），（ｂ）は、センサＡ１，センサＢ２が
水平にずらして設置されたとき任意の１ライン上での読
みとりを表す信号図である。2 (a) and 2 (b) are signal diagrams showing reading on an arbitrary line when the sensor A1 and the sensor B2 are installed while being horizontally displaced.
【図３】センサＡ１，センサＢ２の出力信号を合成した
信号図である。FIG. 3 is a signal diagram in which output signals of sensors A1 and B2 are combined.
【図４】センサＡ１，センサＢ２の配置例を示す図であ
る。FIG. 4 is a diagram showing an arrangement example of sensors A1 and B2.
【図５】従来の一例を示すブロック図である。FIG. 5 is a block diagram showing a conventional example.
１ センサＡ ２ センサＢ ３ 信号合成器 ４ ハーフミラー ５ 出力信号 1 Sensor A 2 Sensor B 3 Signal synthesizer 4 Half mirror 5 Output signal
Claims (1)
ーフミラーで２分割した入射光に対して同一光路上に光
電変換素子の配置間隔の1/2 だけ水平方向あるいは垂直
方向にずらしてそれぞれ配置した２個の光電変換素子
と、該２個の光電変換素子の信号を合成する信号合成器
を備えることを特徴とする高解像度イメージスキャナ。1. A half mirror that divides incident light into two parts, and the incident light divided into two parts by the half mirror is shifted in the horizontal or vertical direction by 1/2 of the arrangement interval of photoelectric conversion elements on the same optical path. A high-resolution image scanner comprising two photoelectric conversion elements respectively arranged and a signal synthesizer for synthesizing signals of the two photoelectric conversion elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3325843A JPH05284280A (en) | 1991-12-10 | 1991-12-10 | High resolution image scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3325843A JPH05284280A (en) | 1991-12-10 | 1991-12-10 | High resolution image scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05284280A true JPH05284280A (en) | 1993-10-29 |
Family
ID=18181241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3325843A Withdrawn JPH05284280A (en) | 1991-12-10 | 1991-12-10 | High resolution image scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05284280A (en) |
-
1991
- 1991-12-10 JP JP3325843A patent/JPH05284280A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990311 |