JP2010183298A5

JP2010183298A5 -

Info

Publication number: JP2010183298A5
Application number: JP2009024290A
Authority: JP
Filing date: 2009-02-04
Publication date: 2012-03-22
Anticipated expiration: 2029-02-04

Description

また、上述の目的は、撮像素子を用いて撮像する撮像装置の制御方法であって、検出手段が、環境光の色温度を検出する色温度検出ステップと、決定手段が、撮像時の補助光源の発光量と撮像素子のゲインを決定する決定ステップと、制御手段が、決定ステップで決定された補助光源の発光量と撮像素子のゲインにより撮像を行うように補助光源および撮像素子のゲインを制御する制御ステップとを有し、色温度検出ステップで検出された環境光の色温度が予め定めた色温度より低い場合、決定手段は決定ステップにおいて、環境光の色温度が予め定めた色温度以上である場合よりも、補助光源の発光量を減少させるとともに、撮像素子のゲインを増加させることを特徴とする撮像装置の制御方法によっても達成される。 In addition, the above-described object is a method for controlling an imaging apparatus that performs imaging using an imaging device, in which a detection unit detects a color temperature of ambient light, and a determination unit includes an auxiliary light source during imaging. Determining step of determining the light emission amount and gain of the image sensor, and the control means controls the gain of the auxiliary light source and the image sensor so as to perform imaging based on the light emission amount of the auxiliary light source determined in the determination step and the gain of the image sensor A control step for determining the ambient light color temperature detected in the color temperature detection step is lower than a predetermined color temperature, and the determining means determines whether the ambient light color temperature is equal to or higher than the predetermined color temperature in the determination step. This is also achieved by a control method for an image pickup apparatus characterized in that the amount of light emitted from the auxiliary light source is reduced and the gain of the image pickup element is increased.

Claims

An imaging device for imaging using an imaging element,
Color temperature detection means for detecting the color temperature of ambient light;
Determining means for determining the light emission amount of the auxiliary light source during imaging and the gain of the imaging device;
Control means for controlling the gain of the auxiliary light source and the image sensor so as to perform imaging based on the light emission amount of the auxiliary light source determined by the determining means and the gain of the image sensor;
When the color temperature of the ambient light detected by the color temperature detection unit is lower than a predetermined color temperature, the determination unit is more than the case where the color temperature of the environmental light is equal to or higher than the predetermined color temperature. An image pickup apparatus that reduces the light emission amount of the auxiliary light source and increases the gain of the image pickup element.

The imaging apparatus according to claim 1, wherein the determination unit decreases the light emission amount of the auxiliary light source and increases the gain of the imaging element as the color temperature of the ambient light is lower.

Furthermore, it has a distance detection means for detecting the distance to the subject for each subject,
It said determining means, the amount of reducing the emission amount of the auxiliary light source when the color temperature of said detected ambient light is lower than the predetermined color temperature by the color temperature detection means, increases the gain of the imaging element claim 1 or claim 2 and a minimum value of the amount to be, and determines to be larger as the difference in distance between the object located farther than the main subject with a predetermined main object is large The imaging device described.

A backlight determining means for determining whether the backlight is a backlight;
When the backlight determining unit determines that the backlight is backlit, the determining unit assumes that the color temperature of the ambient light is equal to or higher than the predetermined color temperature and the light emission amount of the auxiliary light source at the time of imaging and the imaging The imaging device according to any one of claims 1 to 3, wherein a gain of the element is determined.

Mode determining means for determining whether the imaging mode of the imaging apparatus is a predetermined imaging mode;
When the mode determining unit determines that the imaging mode of the imaging apparatus is the predetermined imaging mode, the determining unit has a color temperature of the ambient light that is equal to or higher than the predetermined color temperature. The imaging apparatus according to claim 1, wherein a light emission amount of the auxiliary light source at the time of imaging and a gain of the imaging element are determined.

An image pickup apparatus control method for picking up an image using an image pickup element,
A color temperature detection step in which the detection means detects the color temperature of the ambient light; and
Determining means, a determination step of determining a gain of the image pickup element and the light emission amount of the auxiliary light source at the time of imaging,
The control means has a control step of controlling the gain of the auxiliary light source and the image sensor so as to perform imaging based on the light emission amount of the auxiliary light source determined in the determining step and the gain of the image sensor;
When the color temperature of the ambient light detected in the color temperature detection step is lower than a predetermined color temperature, the determining means determines that the ambient light color temperature is equal to or higher than the predetermined color temperature in the determining step. A control method for an image pickup apparatus, characterized in that the amount of light emitted from the auxiliary light source is reduced and the gain of the image pickup element is increased.

The program for making the computer which an imaging device has perform each step of the control method of the imaging device of Claim 6.

A computer-readable recording medium on which the program according to claim 7 is recorded.