JP2000184259A - Electronic camera - Google Patents
Electronic cameraInfo
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- JP2000184259A JP2000184259A JP10355829A JP35582998A JP2000184259A JP 2000184259 A JP2000184259 A JP 2000184259A JP 10355829 A JP10355829 A JP 10355829A JP 35582998 A JP35582998 A JP 35582998A JP 2000184259 A JP2000184259 A JP 2000184259A
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- image
- angle
- view
- zoom processing
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光学ズーム処理手
段と電子ズーム処理手段とを併用して、撮影画像の画角
調整を行う電子カメラ装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic camera device for adjusting the angle of view of a photographed image by using both optical zoom processing means and electronic zoom processing means.
【０００２】[0002]
【従来の技術】従来のこの種の電子カメラ装置において
は、広角時に撮像素子の画素全体を出力映像信号の画素
として使用しているため、広角から望遠にズーム移動す
る際、撮像素子の解像度を落とさないように、まず光学
ズームを動作させ、光学ズームが最大倍率になったとこ
ろで、電子ズームに切り替えることによって、画像を拡
大させる手法が採られている。2. Description of the Related Art In a conventional electronic camera device of this type, since the entire pixel of an image sensor is used as a pixel of an output video signal at a wide angle, the resolution of the image sensor during zooming from wide angle to telephoto is reduced. In order to prevent the image from being dropped, an optical zoom is first operated, and when the optical zoom reaches the maximum magnification, an electronic zoom is used to enlarge the image.
【０００３】また、特開平１０−４２１８３号公報に
は、機械的にレンズを駆動させる光学ズームのみ動作さ
せる範囲においては、高速なズーム動作が困難であり、
また、電子的な処理によって画像を拡大する電子ズーム
においては、高速なズーム動作が可能であるが、解像度
の劣化を伴うという問題を解決するものが提案されてい
る。Japanese Patent Laid-Open No. 10-42183 discloses that it is difficult to perform a high-speed zoom operation in a range in which only an optical zoom for mechanically driving a lens is operated.
Further, in an electronic zoom for enlarging an image by electronic processing, a method has been proposed which solves the problem that a high-speed zoom operation is possible but the resolution is deteriorated.
【０００４】これによると、電子ズームと光学ズームと
を同時に駆動させて、画像の画角を決定することによ
り、高速ズームを実現することができ、また、その後前
記画角を保持しながら前記画角の制御を実質的に光学ズ
ームに移行していくことにより、電子ズームによる画角
の制御量を減少させて、解像度の優れた画像を得ること
が可能である。According to this, high-speed zooming can be realized by simultaneously driving the electronic zoom and the optical zoom to determine the angle of view of an image, and thereafter, maintaining the angle of view. By substantially shifting the control of the angle to the optical zoom, the amount of control of the angle of view by the electronic zoom can be reduced, and an image with excellent resolution can be obtained.
【０００５】[0005]
【発明が解決しようとする課題】一般に、光学レンズの
中心部は解像度が高く、且つ歪みが少ないが、周辺部で
は解像度が低く、且つ歪みが発生することが知られてい
る。また、出力映像信号の画素数が撮像素子の画素数を
越えない範囲では、電子ズームによる解像度劣化はほと
んどない。In general, it is known that the central portion of an optical lens has a high resolution and a small distortion, but the peripheral portion has a low resolution and a distortion occurs. In addition, as long as the number of pixels of the output video signal does not exceed the number of pixels of the image sensor, there is almost no degradation in resolution due to electronic zoom.
【０００６】よって、出力映像信号の画素数が撮像素子
より小さい場合は、広角から望遠へとズームする際、電
子ズームによる解像度劣化が生じない範囲では、光学ズ
ームを動作させるよりも、むしろ光学レンズの特性の良
い中心部分を用いて、電子ズームを動作させることによ
って、良好な画像を得ることが望まれる。Therefore, when the number of pixels of the output video signal is smaller than that of the image pickup device, when zooming from wide angle to telephoto, the optical lens is operated rather than operating the optical zoom in a range where the resolution is not deteriorated by the electronic zoom. It is desired to obtain a good image by operating the electronic zoom using the central portion having the excellent characteristics of the above.
【０００７】しかしながら、上述した従来の電子カメラ
装置においては、出力映像信号の画素数が撮像素子の画
素数より小さい場合が考慮されておらず、また、光学レ
ンズ全体を使用して画像を結像させることによる画像周
辺部の解像度の劣化、歪みが発生するという問題があっ
た。However, the above-mentioned conventional electronic camera apparatus does not consider a case where the number of pixels of the output video signal is smaller than the number of pixels of the image sensor, and forms an image using the entire optical lens. This causes a problem that the resolution of the peripheral portion of the image deteriorates and distortion occurs.
【０００８】本発明は、上述したような点に鑑みてなさ
れたものであり、光学レンズによる画像周辺部の劣化
（解像度、歪み等）を最小限に抑制することができる電
子カメラ装置を提供することを目的とする。The present invention has been made in view of the above points, and provides an electronic camera apparatus capable of minimizing deterioration (resolution, distortion, etc.) of an image peripheral portion due to an optical lens. The purpose is to:
【０００９】[0009]
【課題を解決するための手段】本願請求項１に記載の発
明に係る電子カメラ装置は、光学的に取り込まれた画像
を電気信号に変換する撮像素子と、光学的に画像の画角
を変化させる光学ズーム処理手段と、電子的に画像の画
角を変化させる電子ズーム処理手段と、前記光学ズーム
処理手段及び前記電子ズーム処理手段を制御することに
よって、所望の画角の出力映像信号を得る制御手段とを
備えた電子カメラ装置であって、前記制御手段は、前記
出力映像信号の画素数が前記撮像素子の全画素数より小
さい場合は、前記電子ズーム処理手段によって画角を変
化せしめ、前記出力映像信号の画素数が前記撮像素子の
有効画素数と同程度の場合は、前記光学ズーム処理手段
によって画角を変化せしめるものである。According to a first aspect of the present invention, there is provided an electronic camera apparatus which converts an optically captured image into an electric signal, and optically changes the angle of view of the image. Optical zoom processing means for electronically changing the angle of view of an image, and electronic video processing means for controlling the optical zoom processing means and the electronic zoom processing means to obtain an output video signal of a desired angle of view. An electronic camera device comprising a control unit, wherein the control unit changes the angle of view by the electronic zoom processing unit when the number of pixels of the output video signal is smaller than the total number of pixels of the image sensor. When the number of pixels of the output video signal is substantially the same as the number of effective pixels of the image sensor, the angle of view is changed by the optical zoom processing means.
【００１０】これによって、撮像素子の全画素数より小
さい画素数の画像を出力映像信号として取り出す場合、
撮像素子の有効画素数と出力映像信号の画素数とが同程
度になるまで、電子ズーム処理手段によって画角を変化
せしめ、その後、光学ズーム処理手段によって画角を変
化せしめるように切り替えているので、電子ズーム処理
手段による画像の劣化を生じることなく、且つ光学レン
ズの周辺部を使用することによる解像度、歪みの少ない
画像を得ることができる。Thus, when an image having a smaller number of pixels than the total number of pixels of the image pickup element is taken out as an output video signal,
Since the angle of view is changed by the electronic zoom processing means until the number of effective pixels of the image sensor and the number of pixels of the output video signal are substantially the same, and then the angle of view is changed by the optical zoom processing means. In addition, it is possible to obtain an image having less resolution and distortion due to the use of the peripheral portion of the optical lens without causing the image deterioration due to the electronic zoom processing means.
【００１１】本願請求項２に記載の発明に係る電子カメ
ラ装置は、前記請求項１に記載の電子カメラ装置におい
て、前記制御手段は、前記出力映像信号の画素数が前記
撮像素子の有効画素数と同程度であって、前記光学ズー
ム処理手段による画角の倍率が最大である場合、さら
に、前記電子ズーム処理手段によって画角を変化せしめ
るものである。According to a second aspect of the present invention, in the electronic camera device according to the first aspect, the control means determines that the number of pixels of the output video signal is equal to the number of effective pixels of the image sensor. When the magnification of the angle of view by the optical zoom processing means is the maximum, the angle of view is further changed by the electronic zoom processing means.
【００１２】これによって、光学ズーム処理手段による
画角の倍率が最大となった場合であっても、さらに電子
ズーム処理手段によって画角の変倍を行うことが可能と
なる。Thus, even when the magnification of the angle of view by the optical zoom processing means is maximized, it is possible to further change the angle of view by the electronic zoom processing means.
【００１３】[0013]
【発明の実施の形態】以下、本発明の電子カメラ装置の
一実施形態を、図１乃至図５とともに説明する。ここ
で、図１は本実施形態の電子カメラ装置の要部概略構成
を示す機能ブロック図、図２は本実施形態の電子カメラ
装置における光学装置の概略構成を示す説明図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an electronic camera device according to the present invention will be described below with reference to FIGS. Here, FIG. 1 is a functional block diagram showing a schematic configuration of a main part of the electronic camera device of the present embodiment, and FIG. 2 is an explanatory diagram showing a schematic configuration of an optical device in the electronic camera device of the present embodiment.
【００１４】図３は本実施形態の電子カメラ装置におけ
る撮像素子上の画像と出力映像との関係を示す説明図、
図４は本実施形態の電子カメラ装置における制御マイコ
ンの動作を示すフローチャート、図５は本実施形態の電
子カメラ装置における光学ズーム及び電子ズームと画角
変化との関係を示す説明図である。FIG. 3 is an explanatory diagram showing a relationship between an image on an image sensor and an output video in the electronic camera device of the present embodiment.
FIG. 4 is a flowchart showing the operation of the control microcomputer in the electronic camera device of the present embodiment, and FIG. 5 is an explanatory diagram showing the relationship between the optical zoom and the electronic zoom and the change in the angle of view in the electronic camera device of the present embodiment.
【００１５】本実施形態の電子カメラ装置は、図１に示
すように、光学的な被写体像を撮像素子（ＣＣＤ）２に
結像させるための光学装置１と、該光学装置１に含まれ
るズーム用レンズ群を光軸方向に移動させることによっ
て、光学的に画像の画角を変化させる光学ズームレンズ
駆動部２と、その撮像面上に結像された被写体像を電気
的な画像信号に変換する撮像素子３と、該撮像素子３上
に結像された画像から所望の領域を切り出すことによっ
て、電子的に画像の画角を変化させる電子ズーム処理部
４とを備えている。As shown in FIG. 1, the electronic camera device of the present embodiment has an optical device 1 for forming an optical subject image on an image pickup device (CCD) 2 and a zoom included in the optical device 1. Optical lens drive unit 2 that optically changes the angle of view of an image by moving the lens group for optical use, and converts the subject image formed on the imaging surface into an electrical image signal And an electronic zoom processing unit 4 that electronically changes the angle of view of the image by cutting out a desired area from the image formed on the image sensor 3.
【００１６】また、ユーザがズーム操作を行うためのズ
ーム操作部５と、出力映像信号の画素数の切換／設定を
行うための映像出力画素数切換部６と、ズーム操作部５
及び映像出力画素数切換部６からの入力に基づいて、光
学ズームレンズ駆動部２及び電子ズーム処理部４のそれ
ぞれに対して制御信号を出力する制御マイコン７とを備
えている。A zoom operation unit 5 for a user to perform a zoom operation, a video output pixel number switching unit 6 for switching / setting the number of pixels of an output video signal, and a zoom operation unit 5
And a control microcomputer 7 for outputting a control signal to each of the optical zoom lens driving unit 2 and the electronic zoom processing unit 4 based on an input from the video output pixel number switching unit 6.
【００１７】尚、上記構成において、光学装置１は、図
２に示すように、前玉レンズ１１と、バリエータ、コン
ペンセータよりなるズーム用レンズ群１２と、結像レン
ズ１３とを備えており、被写体像は、この光学装置１を
介して撮像素子３に結像される。In the above configuration, as shown in FIG. 2, the optical device 1 includes a front lens 11, a zoom lens group 12 composed of a variator and a compensator, and an imaging lens 13. An image is formed on the image sensor 3 via the optical device 1.
【００１８】ここで、ズーム用レンズ群１２を広角の位
置に移動した場合、図２（ａ）に示すように、前玉レン
ズ１１、結像レンズ１３のレンズ全面を使用して、図３
（ａ）に示すように、撮像素子３の全面に被写体像を結
像する。このとき、前玉レンズ１１、結像レンズ１３の
レンズ全面を使用しているため、レンズ周辺部で生じる
歪み、解像度の劣化の影響が出力画像の周辺部にも発生
する。Here, when the zoom lens group 12 is moved to the wide-angle position, as shown in FIG. 2A, the entire front lens 11 and the imaging lens 13 are used, and as shown in FIG.
As shown in (a), a subject image is formed on the entire surface of the image sensor 3. At this time, since the entire lens surfaces of the front lens 11 and the imaging lens 13 are used, distortion generated at the peripheral portion of the lens and degradation of resolution also occur at the peripheral portion of the output image.
【００１９】本実施形態の電子カメラ装置は、このレン
ズ周辺部で生じる歪み、解像度の劣化の影響を最小限に
抑えるものであり、その動作について、図４のフローチ
ャートとともに詳細に説明する。ここでは、ズーム操作
部５の操作により、画角を広角から望遠に変化させる場
合について説明する。The electronic camera device according to the present embodiment minimizes the influence of the distortion and the deterioration of the resolution occurring at the peripheral portion of the lens. The operation will be described in detail with reference to the flowchart of FIG. Here, a case where the angle of view is changed from wide angle to telephoto by operating the zoom operation unit 5 will be described.
【００２０】まず、撮像素子３の全画素数ａと、映像出
力画素数切換部６で設定された出力映像信号の画素数ｂ
とを比較し（ステップ１）、ａ＞ｂのときは、図２
（ｂ）及び図３（ｂ）に示すように、ズーム用レンズ群
１２は駆動せず、電子ズーム処理部４を動作させて、撮
像素子３の有効画素数ｃを少なくするように、画像の切
り出し領域を制御し、電子的ズームによって画角を広角
から望遠に変化させる（ステップ２）。First, the total number of pixels a of the image sensor 3 and the number of pixels b of the output video signal set by the video output pixel number switching unit 6
(Step 1), and when a> b, FIG.
As shown in FIG. 3B and FIG. 3B, the zoom lens group 12 is not driven, and the electronic zoom processing unit 4 is operated so that the number of effective pixels c of the image sensor 3 is reduced. The cutout area is controlled, and the angle of view is changed from wide angle to telephoto by electronic zoom (step 2).
【００２１】次に、撮像素子３の有効画素数ｃと、出力
映像信号の画素数ｂとが同程度か否かを判別し（ステッ
プ３）、同程度となった（ｃ＝ｂ）ときは、光学ズーム
レンズ駆動部２によりズーム用レンズ群１２を駆動し
て、図２（ｃ）及び図３（ｃ）に示すように、光学的ズ
ームによって画角を広角から望遠に変化させる（ステッ
プ４）。Next, it is determined whether or not the number of effective pixels c of the image sensor 3 is substantially equal to the number of pixels b of the output video signal (step 3). Then, the zoom lens group 12 is driven by the optical zoom lens driving unit 2 to change the angle of view from wide angle to telephoto by optical zoom as shown in FIGS. 2C and 3C (step 4). ).
【００２２】尚、ステップ１における比較結果が、ａ≦
ｂのときは、ステップ４に進み、光学的ズームにより画
角を広角から望遠に変化させる。また、ステップ３にて
撮像素子３の有効画素数ｃと、出力映像信号の画素数ｂ
とが同程度と判別されるまでは、ステップ２に戻り、継
続して電子的ズームにより画角を広角から望遠に変化さ
せる。Incidentally, if the comparison result in step 1 is a ≦ a
In the case of b, the process proceeds to step 4, where the angle of view is changed from wide angle to telephoto by optical zoom. In step 3, the number c of effective pixels of the image sensor 3 and the number b of pixels of the output video signal
Until it is determined to be the same, the process returns to step 2 and the angle of view is continuously changed from the wide angle to the telephoto by the electronic zoom.
【００２３】さらに、光学的ズームによる画角の倍率が
最大であるか否かを判別し（ステップ５）、光学的ズー
ムが最大倍率となったとき、再び電子ズーム処理部４を
動作させて、電子的ズームによって画角を広角から望遠
に変化させる（ステップ６）。Further, it is determined whether or not the magnification of the angle of view by the optical zoom is the maximum (step 5). When the optical zoom reaches the maximum magnification, the electronic zoom processing section 4 is operated again, and The angle of view is changed from wide angle to telephoto by electronic zoom (step 6).
【００２４】すなわち、画角を広角から望遠に変化させ
た場合、図５に示すように、出力映像信号の画素数ｂ
と、撮像素子３の有効画素数ｃとが同程度（ｂ＝ｃ）に
なるまでは、電子的ズームのみを動作させているため、
図２（ｂ）及び図３（ｂ）に示すように、撮像素子３に
結像された被写体像の周辺部は映像出力しないので、解
像度、歪みの少ない画像を得ることができる。That is, when the angle of view is changed from wide angle to telephoto, as shown in FIG.
And only the electronic zoom is operated until the number c of effective pixels of the image sensor 3 becomes substantially the same (b = c).
As shown in FIG. 2B and FIG. 3B, since the peripheral portion of the subject image formed on the image sensor 3 does not output video, it is possible to obtain an image with little resolution and distortion.
【００２５】ここで、撮像素子３の有効画素数ｃが出力
映像信号の画素数ｂよりも大きい範囲では、電子的ズー
ム動作による画像の劣化を生じることもないため、高品
位な画像を得ることが可能となる。Here, in the range where the number of effective pixels c of the image pickup device 3 is larger than the number of pixels b of the output video signal, the image is not deteriorated by the electronic zoom operation, so that a high-quality image can be obtained. Becomes possible.
【００２６】また、出力映像信号の画素数ｂと、撮像素
子３の有効画素数ｃとが同程度（ｂ＝ｃ）となった後、
光学的ズームのみを動作させているため、図２（ｃ）及
び図３（ｃ）に示すように、やはり撮像素子３に結像さ
れた被写体像の周辺部は映像出力しないので、解像度、
歪みの少ない画像を得ることができる。After the number b of pixels of the output video signal and the number c of effective pixels of the image sensor 3 become substantially the same (b = c),
Since only the optical zoom is operated, as shown in FIGS. 2 (c) and 3 (c), the periphery of the subject image formed on the image sensor 3 is not output as an image.
An image with less distortion can be obtained.
【００２７】さらに、光学的ズームが最大倍率となった
後も、電子的ズームにより画角を望遠に変化させること
ができる。Further, even after the optical zoom reaches the maximum magnification, the angle of view can be changed to the telephoto by the electronic zoom.
【００２８】尚、望遠から広角にズーム移行する場合
は、上述のステップと逆の動作により、画角を変化させ
ることができる。また、上記実施形態において、撮像素
子３の全画素数ａと、映像出力画素数切換部６で設定さ
れた出力映像信号の画素数ｂとが同程度の場合は、上述
した従来例と同様、光学的ズームを動作させ、光学的ズ
ームが最大倍率になったところで、電子的ズームに切り
替えることになるが、これらは、映像出力画素数切換部
６にて任意に選択可能である。When the zoom is shifted from the telephoto to the wide angle, the angle of view can be changed by the operation reverse to the above-described steps. In the above embodiment, when the total number of pixels a of the image sensor 3 and the number of pixels b of the output video signal set by the video output pixel number switching unit 6 are almost the same, the same as in the above-described conventional example. When the optical zoom is operated and the optical zoom reaches the maximum magnification, the electronic zoom is switched to an electronic zoom. These can be arbitrarily selected by the video output pixel number switching unit 6.
【００２９】[0029]
【発明の効果】本願請求項１に記載の発明に係る電子カ
メラ装置は、上述したような構成としているので、撮像
素子の全画素数より小さい画素数の画像を出力映像信号
として取り出す場合、撮像素子の有効画素数と出力映像
信号の画素数とが同程度になるまで、電子ズーム処理手
段によって画角を変化せしめ、その後、光学ズーム処理
手段によって画角を変化せしめるように切り替えている
ので、電子ズーム処理手段による画像の劣化を生じるこ
となく、且つ光学レンズの周辺部を使用することによる
解像度、歪みの少ない画像を得ることができる。The electronic camera device according to the first aspect of the present invention has the above-described configuration. Therefore, when an image having a smaller number of pixels than the total number of pixels of the image sensor is taken out as an output video signal, an image pickup operation is performed. Until the number of effective pixels of the element and the number of pixels of the output video signal are almost the same, the angle of view is changed by the electronic zoom processing means, and then the angle of view is changed by the optical zoom processing means, so that switching is performed. It is possible to obtain an image having little resolution and distortion due to the use of the peripheral portion of the optical lens without causing the image deterioration due to the electronic zoom processing means.
【００３０】本願請求項２に記載の発明に係る電子カメ
ラ装置は、光学ズーム処理手段による画角の倍率が最大
となった場合であっても、さらに電子ズーム処理手段に
よって画角の変倍を行うことが可能となる。In the electronic camera device according to the second aspect of the present invention, even when the magnification of the angle of view by the optical zoom processing unit is maximized, the electronic zoom processing unit further changes the angle of view. It is possible to do.
【図１】本発明の電子カメラ装置の一実施形態の要部概
略構成を示す機能ブロック図である。FIG. 1 is a functional block diagram illustrating a schematic configuration of a main part of an embodiment of an electronic camera device according to the present invention.
【図２】本発明の電子カメラ装置の一実施形態における
光学装置の概略構成を示す説明図である。FIG. 2 is an explanatory diagram showing a schematic configuration of an optical device in one embodiment of the electronic camera device of the present invention.
【図３】本発明の電子カメラ装置の一実施形態における
撮像素子上の画像と出力映像との関係を示す説明図であ
る。FIG. 3 is an explanatory diagram showing a relationship between an image on an image sensor and an output video in one embodiment of the electronic camera device of the present invention.
【図４】本発明の電子カメラ装置の一実施形態における
制御マイコンの動作を示すフローチャートである。FIG. 4 is a flowchart illustrating an operation of a control microcomputer in one embodiment of the electronic camera device of the present invention.
【図５】本発明の電子カメラ装置の一実施形態における
光学ズーム及び電子ズームと画角変化との関係を示す説
明図である。FIG. 5 is an explanatory diagram showing a relationship between optical zoom and electronic zoom and a change in angle of view in an embodiment of the electronic camera device of the present invention.
１ 光学装置 ２ 光学ズームレンズ駆動部 ３ 撮像素子 ４ 電子ズーム処理部 ５ ズーム操作部 ６ 映像出力画素数切換部 ７ 制御マイコン １１ 前玉レンズ １２ ズーム用レンズ群 １３ 結像レンズ DESCRIPTION OF SYMBOLS 1 Optical device 2 Optical zoom lens drive part 3 Image sensor 4 Electronic zoom processing part 5 Zoom operation part 6 Video output pixel number switching part 7 Control microcomputer 11 Front lens 12 Zoom lens group 13 Imaging lens
Claims (2)
変換する撮像素子と、 光学的に画像の画角を変化させる光学ズーム処理手段
と、 電子的に画像の画角を変化させる電子ズーム処理手段
と、 前記光学ズーム処理手段及び前記電子ズーム処理手段を
制御することによって、所望の画角の出力映像信号を得
る制御手段とを備えた電子カメラ装置であって、 前記制御手段は、前記出力映像信号の画素数が前記撮像
素子の全画素数より小さい場合は、前記電子ズーム処理
手段によって画角を変化せしめ、前記出力映像信号の画
素数が前記撮像素子の有効画素数と同程度の場合は、前
記光学ズーム処理手段によって画角を変化せしめること
を特徴とする電子カメラ装置。1. An image pickup device that converts an optically captured image into an electric signal, an optical zoom processing unit that optically changes the angle of view of the image, and an electronic zoom that electronically changes the angle of view of the image An electronic camera apparatus comprising: a processing unit; and a control unit configured to control the optical zoom processing unit and the electronic zoom processing unit to obtain an output video signal having a desired angle of view. When the number of pixels of the output video signal is smaller than the total number of pixels of the image sensor, the angle of view is changed by the electronic zoom processing means, and the number of pixels of the output video signal is substantially equal to the number of effective pixels of the image sensor. In such a case, the angle of view is changed by the optical zoom processing means.
おいて、 前記制御手段は、前記出力映像信号の画素数が前記撮像
素子の有効画素数と同程度であって、前記光学ズーム処
理手段による画角の倍率が最大である場合、さらに、前
記電子ズーム処理手段によって画角を変化せしめること
を特徴とする電子カメラ装置。2. The electronic camera device according to claim 1, wherein the control unit is configured to determine that the number of pixels of the output video signal is substantially the same as the number of effective pixels of the image sensor, and When the magnification of the angle of view is the maximum, the angle of view is further changed by the electronic zoom processing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35582998A JP3593271B2 (en) | 1998-12-15 | 1998-12-15 | Electronic camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35582998A JP3593271B2 (en) | 1998-12-15 | 1998-12-15 | Electronic camera device |
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| Publication Number | Publication Date |
|---|---|
| JP2000184259A true JP2000184259A (en) | 2000-06-30 |
| JP3593271B2 JP3593271B2 (en) | 2004-11-24 |
Family
ID=18445963
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35582998A Expired - Fee Related JP3593271B2 (en) | 1998-12-15 | 1998-12-15 | Electronic camera device |
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| Country | Link |
|---|---|
| JP (1) | JP3593271B2 (en) |
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| JP2002314868A (en) * | 2001-04-13 | 2002-10-25 | Olympus Optical Co Ltd | Imaging device |
| JP2006174408A (en) * | 2004-12-10 | 2006-06-29 | Ambarella Inc | High resolution zoom method for digital video camera |
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| JP4532698B2 (en) * | 2000-08-11 | 2010-08-25 | キヤノン株式会社 | Image processing apparatus, image processing method, and storage medium |
| JP2002057931A (en) * | 2000-08-11 | 2002-02-22 | Canon Inc | Image processing unit, image processing method and storage medium |
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