JP2011109267A5

JP2011109267A5 - Camera and image composition method

Info

Publication number: JP2011109267A5
Application number: JP2009260245A
Authority: JP
Filing date: 2009-11-13
Publication date: 2012-12-27
Anticipated expiration: 2029-11-13

Description

本発明は、水上の被写体と水中の被写体とをそれぞれ撮影するカメラ及び画像合成方法に関する。 The present invention relates to a camera and an image composition method for photographing a water subject and a water subject, respectively .

なお、特開２００５−２１５６８４号公報には、カメラの撮影タイミングを自動で決定することが開示されている。
しかし、この公報は、人物の顔に関するもので、被写体そのものの特徴を検出するものであって、被写体を取り巻く、特殊な環境に対応するものでない。
本発明は上述した点に鑑みてなされたもので、水面が変動する撮像又は撮影状況においても、水上被写体及び水中被写体の両画像を同時に含む画像を取得するのに適したカメラ及び画像合成方法を提供することを目的とする。 Japanese Patent Laid-Open No. 2005-215684 discloses that the shooting timing of a camera is automatically determined.
However, this publication relates to a person's face and detects the characteristics of the subject itself, and does not correspond to a special environment surrounding the subject.
The present invention has been made in view of the above points, and provides a camera and an image synthesizing method suitable for acquiring an image including both a water subject and an underwater subject at the same time even in an imaging or photographing situation in which the water surface fluctuates. The purpose is to provide.

本発明の１態様に係るカメラは、水面上部側の水上被写体と、水面下部側の水中被写体とをそれぞれ撮影するための撮像部と、
上記撮像部で撮像した被写体の画像から、上記水上被写体の水上被写体画像と、上記水中被写体の水中被写体画像との境界の上記水面部に対応する水面部画像を検出する水面部画像検出部と、
上記撮像部で撮像した被写体の画像における上記水面部画像の上側に上記水中被写体画像、又は上記水面部画像の下側に上記水上被写体画像を合成して、合成画像を生成する画像合成部と、
を具備することを特徴とする。
本発明の１態様に係る画像合成方法は、水面上部側の水上被写体と、水面下部側の水中被写体とをそれぞれ撮影するための撮像ステップと、
上記撮像ステップで撮像した被写体の画像から、上記水上被写体の水上被写体画像と、上記水中被写体の水中被写体画像との境界の上記水面部に対応する水面部画像を検出する水面部画像検出ステップと、
上記撮像ステップで撮像した上記被写体の画像における上記水面部画像の上側に上記水中被写体画像、又は上記水面部画像の下側に上記水上被写体画像を合成して、合成画像を生成する画像合成ステップと、
を具備することを特徴とする。
本発明の他の１態様に係るカメラは、水面上部側の水上被写体と、水面下部側の水中被写体とを同時に撮影するための撮像部と、
上記撮像部が上記水上被写体と上記水中被写体とを同時に撮影するための撮影モードとしての半水中撮影モードの撮影状態に設定されたことを自動的に検出する半水中撮影モード判定部と、
上記半水中撮影モード判定部による半水中撮影モードの撮影状態の判定後における複数の撮影タイミングにより上記撮像部により撮影された複数の画像から水面が変動する水面部により発生する水面部画像を検出し、該水面部画像の少なくとも一部に上記水上被写体の水上被写体画像又は上記水中被写体の水中被写体画像を合成して上記水面部画像の領域を低減した合成画像を生成する画像合成部と、
を具備することを特徴とする。 Camera according to one embodiment of the present invention, the water subject water upper side, and the imaging unit for each shooting underwater object of water lower side,
A water surface image detection unit that detects a water surface image corresponding to the water surface part of the boundary between the water subject image of the water subject and the water subject image of the water subject from the image of the subject imaged by the imaging unit;
An image compositing unit that synthesizes the underwater subject image above the water surface image in the image of the subject imaged by the imaging unit or the water subject image below the water surface image, and generates a composite image;
It is characterized by comprising.
An image compositing method according to one aspect of the present invention includes an imaging step for capturing a water subject on the upper side of the water surface and an underwater subject on the lower side of the water surface,
A water surface image detection step of detecting a water surface image corresponding to the water surface portion of the boundary between the water subject image of the water subject and the underwater subject image of the underwater subject from the image of the subject imaged in the imaging step;
An image synthesis step for generating a composite image by combining the underwater subject image above the water surface image in the image of the subject imaged in the imaging step or the above water subject image below the water surface image; ,
It is characterized by comprising.
A camera according to another aspect of the present invention includes an imaging unit for simultaneously photographing a water subject on the upper side of the water surface and an underwater subject on the lower side of the water surface,
A semi-underwater shooting mode determination unit that automatically detects that the imaging unit is set to a shooting state of a semi-underwater shooting mode as a shooting mode for simultaneously shooting the water subject and the underwater subject;
A water surface image generated by a water surface portion where the water surface fluctuates is detected from a plurality of images photographed by the imaging unit at a plurality of photographing timings after determination of the photographing state of the semi-underwater photographing mode by the semi-underwater photographing mode determining unit. An image composition unit that synthesizes the water subject image of the water subject or the underwater subject image of the underwater subject to at least a part of the water surface image to generate a composite image in which the area of the water surface image is reduced;
It is characterized by comprising.

本発明の更に他の１態様に係るカメラは、水面上部側の水上被写体と、水面下部側の水中被写体とを同時に撮影するための撮像部と、
上記撮像部で撮像した被写体の画像から、水面が変動する水面部によって生じる水面部画像を検出し、上記水上被写体の水上被写体画像と、上記水中被写体の水中被写体画像の同時撮影するための撮影タイミングを決定する撮影タイミング決定部と、
上記撮影タイミング決定部で決定した撮影タイミング付近の複数のタイミングで撮影された複数の上記被写体の画像から合成画像を生成する画像合成部と、
を具備することを特徴とする。 A camera according to still another aspect of the present invention includes an imaging unit for simultaneously photographing a water subject on the upper side of the water surface and an underwater subject on the lower side of the water surface,
Shooting timing for detecting a water surface image generated by a water surface portion where the water surface fluctuates from the image of the subject imaged by the imaging unit, and simultaneously photographing the water subject image of the water subject and the underwater subject image of the underwater subject. A shooting timing determination unit for determining
An image composition unit for generating a composite image from a plurality of images of the subject photographed at a plurality of timings near the photographing timing determined by the photographing timing determination unit;
It is characterized by comprising.

本発明によれば、水面が変動する撮像又は撮影状況においても、水上被写体及び水中被写体の両画像を同時に含む画像を取得するのに適したカメラ及び画像合成方法を実現できる。 According to the present invention, it is possible to realize a camera and an image synthesizing method suitable for acquiring an image including both images of a water subject and an underwater subject even in an imaging or shooting situation in which the water surface varies.

Claims

And water subject water upper side, and the imaging unit for each shooting underwater object of water lower side,
A water surface image detection unit that detects a water surface image corresponding to the water surface portion at a boundary between the water subject image of the water subject and the water subject image of the water subject from the image of the subject imaged by the imaging unit;
An image compositing unit that synthesizes the underwater subject image above the water surface image in the image of the subject imaged by the imaging unit or the water subject image below the water surface image, and generates a composite image;
A camera comprising:

The image composition unit
Based on the detection result of the water surface image, the synthetic image is interpolated by interpolating at least one of the water subject image and the water subject image whose shooting is hindered by the presence of the water surface portion in the field of view of the imaging unit. The camera according to claim 1, wherein the camera is generated.

The water surface image detection unit is
The water surface image corresponding to a water surface portion including the water surface is detected from a detection result of a low contrast low contrast region extending in a strip shape in the horizontal direction from an image of a subject imaged by the imaging unit. Item 14. The camera according to Item 1.

The image composition unit
The underwater subject image or the above water subject image is synthesized with the subject image including the water surface image when the low contrast region extending in a strip shape in the horizontal direction extends upward or downward. The camera according to claim 3 , wherein the composite image is generated .

5. The composite image is displayed on a display unit that displays an image, and the composite image in which the low contrast region is determined to be equal to or less than a threshold value in the vertical direction is recorded as a captured image in a recording unit. Camera described in.

An imaging step for capturing a water subject on the upper surface of the water surface and an underwater object on the lower surface of the water surface;
A water surface image detection step of detecting a water surface image corresponding to the water surface portion of the boundary between the water subject image of the water subject and the underwater subject image of the underwater subject from the image of the subject imaged in the imaging step;
An image synthesis step for generating a composite image by combining the underwater subject image above the water surface image in the image of the subject imaged in the imaging step or the above water subject image below the water surface image; ,
An image synthesizing method comprising:

An imaging unit for simultaneously photographing a water subject on the upper surface of the water surface and an underwater object on the lower surface of the water surface;
A semi-underwater shooting mode determination unit that automatically detects that the imaging unit is set to a shooting state of a semi-underwater shooting mode as a shooting mode for simultaneously shooting the water subject and the underwater subject;
A water surface image generated by a water surface portion where the water surface fluctuates is detected from a plurality of images photographed by the imaging unit at a plurality of photographing timings after determination of the photographing state of the semi-underwater photographing mode by the semi-underwater photographing mode determining unit. An image composition unit that synthesizes the water subject image of the water subject or the underwater subject image of the underwater subject to at least a part of the water surface image to generate a composite image in which the area of the water surface image is reduced;
A camera comprising:

An imaging unit for simultaneously photographing a water subject on the upper surface of the water surface and an underwater object on the lower surface of the water surface;
A water surface image generated by a water surface portion where the water surface fluctuates is detected from the image of the subject imaged by the imaging unit, and a shooting timing suitable for simultaneous shooting of the water subject image of the water subject and the underwater subject image of the underwater subject is determined. A shooting timing determination unit to be determined;
An image compositing unit that generates a composite image from a plurality of images of the subject imaged at a plurality of timings near the photographing timing determined by the photographing timing determining unit;
A camera comprising:

The imaging timing determination unit temporarily records a plurality of images captured by the imaging unit during a predetermined period together with the imaging timing in the temporary recording unit, and the images temporarily recorded in the temporary recording unit Whether the influence of the water surface portion in the water surface image is small, or a photographed image to be photographed corresponding to simultaneous photographing of the water subject image and the underwater subject image. 9. The camera according to claim 8, wherein the temporary recording unit records the captured image as a captured image together with a capturing timing.

The camera according to claim 9, wherein a composite image determined to have a small influence of the water surface portion is recorded in the recording unit as a captured image.