JP2010181842A5

JP2010181842A5 -

Info

Publication number: JP2010181842A5
Application number: JP2009027791A
Authority: JP
Filing date: 2009-02-09
Publication date: 2012-03-22
Anticipated expiration: 2029-02-09

Description

上記目的を達成するために、発光装置を用いた撮像が可能な本発明の撮像装置は、前記発光装置を用いずに撮像手段により撮像して得られた画像データから、被写体を検出する被写体検出手段と、前記検出された被写体までの距離を求める距離検出手段と、前記画像データの輝度情報に基づいて前記発光装置を用いて撮像を行うか否かを判断するとともに、前記発光装置を用いて撮像を行うと判断した場合であっても、前記被写体までの距離が前記発光装置の調光範囲外にある場合には前記発光装置を用いずに撮像を行うと判断する判断手段と、前記判断手段により前記発光装置を用いて撮像を行うと判断された場合に、前記輝度情報に基づいて、前記発光装置に発光させる発光量を求める演算手段とを有する。 To achieve the above object, an imaging device of the imaging capable present invention using the light emitting device from the image data obtained by imaging by the imaging means without using the pre-Symbol emitting device, the object to detect the object A detection unit; a distance detection unit for obtaining a distance to the detected subject; and determining whether to perform imaging using the light-emitting device based on luminance information of the image data, and using the light-emitting device. determining means for determining to perform imaging without using the light emitting device in the case even if it is determined that performs imaging, the distance to the subject is out of the dimming range of the light emitting device Te, the when it is determined to perform the shooting image by using the light emitting device by the judgment unit, and a calculating means for, based on the luminance information, obtains the light emission amount for light emitting the light emitting device.

また、撮像装置と共に用いられる発光装置の本発明の制御方法は、被写体検出手段が、前記発光装置を用いずに撮像手段により撮像して得られた画像データから、被写体を検出する被写体検出工程と、距離検出手段が、前記検出された被写体までの距離を求める距離検出工程と、判断手段が、前記画像データの輝度情報に基づいて前記発光装置を用いて撮像を行うか否かを判断するとともに、前記発光装置を用いて撮像を行うと判断した場合であっても、前記被写体までの距離が前記発光装置の調光範囲外にある場合には、前記発光装置を用いずに撮像を行うと判断する判断工程と、演算手段が、前記判断工程により前記発光装置を用いて撮像を行うと判断された場合に、前記輝度情報に基づいて、前記発光装置に発光させる発光量を求める演算工程とを有する。 Further, the control method of the present invention for the light emitting device used together with the imaging device includes a subject detection step in which the subject detection means detects a subject from image data obtained by imaging by the imaging means without using the light emitting device. A distance detecting unit that obtains a distance to the detected subject; and a determining unit that determines whether to perform imaging using the light emitting device based on luminance information of the image data. even when it is determined that performs imaging by using the light emitting device, when the distance to the subject is out of the dimming range of the light emitting device, when the imaging without using the light emitting device a determination step of determining, calculating means, if it is determined to perform the shooting image by using the light emitting device by the determining step, based on the luminance information, obtains the light emission amount for light emitting the light emitting device And a calculation process.

Claims

An imaging device capable of imaging using a light emitting device ,
From the image data obtained by imaging by the imaging means without using the pre-Symbol emitting device, and the object detecting means for detecting an object,
Distance detecting means for obtaining a distance to the detected subject;
Whether or not to perform imaging using the light emitting device based on the luminance information of the image data is determined, and even if it is determined to perform imaging using the light emitting device, the distance to the subject is A determination unit that determines to perform imaging without using the light-emitting device when the light-emitting device is out of a dimming range;
When it is determined to perform the shooting image by using the light emitting device by the determining means, on the basis of the luminance information, the imaging apparatus characterized by having a calculating means for obtaining the light emission amount for light emitting the light emitting device .

Exposure control means for obtaining an exposure condition including an exposure time based on luminance information of the image data;
The judgment unit may, according to claim 1, an exposure time obtained by the exposure control means when not long than a preset exposure time, and determines that performs imaging by using the light emitting device Imaging device.

A motion detection means for detecting a motion amount of the subject;
When the determination unit determines that imaging is performed using the light-emitting device based on the luminance information , the determination unit is configured to detect the subject even if the distance to the subject is outside the dimming range of the light-emitting device. The imaging apparatus according to claim 1, wherein if the amount of motion exceeds a predetermined first threshold, it is determined that imaging is performed using the light emitting device.

A motion detection means for detecting a motion amount of the subject;
Said exposure control means when said determination means determines that performs imaging by using the light emitting device based on the luminance information, Ri dimming range near the distance to the subject is the light emitting device, and, When the amount of movement of the subject is equal to or less than a first threshold, the exposure time obtained based on the luminance information is adjusted according to the amount of movement of the subject,
The imaging apparatus according to claim 2 , wherein the determination unit determines again whether to perform imaging using the light-emitting device based on the adjusted exposure time .

Further comprising a shake detection means for detecting the amount of movement of the imaging device,
When the determination unit determines that imaging is performed using the light emitting device based on the luminance information, the blur detection is performed even when the distance to the subject is outside the light control range of the light emitting device. If more than a second threshold amount of motion of the imaging device detected by means predetermined in any of claims 1 to 4, characterized in that it is determined that performs imaging by using the light emitting device The imaging apparatus according to item 1.

A method for controlling a light emitting device used together with an imaging device,
A subject detection unit for detecting a subject from image data obtained by imaging by the imaging unit without using the light emitting device ;
A distance detecting step in which a distance detecting means obtains a distance to the detected subject;
Even if the determination means determines whether to perform imaging using the light emitting device based on the luminance information of the image data and determines to perform imaging using the light emitting device, the subject If the distance to is outside the range of light control of the light emitting device includes a determination step of determining to perform the imaging without using the light emitting device,
Wherein calculating means, if it is determined to perform the shooting image by using the light emitting device by the determining step, based on the luminance information, that has a calculation step for obtaining the light emission amount for light emitting the light emitting device A method for controlling the light emitting device.