JP2017135515A5

JP2017135515A5 -

Info

Publication number: JP2017135515A5
Application number: JP2016012791A
Authority: JP
Filing date: 2016-01-26
Publication date: 2019-02-28
Anticipated expiration: 2036-01-26

Description

上記目的を達成するために、本発明の撮像装置は、撮像光学系を介して入射した被写体像を撮影する撮像手段と、流し撮り撮影における背景の流し量を設定する設定手段と、流し撮り撮影において、前記設定手段により設定された前記背景の流し量となるように、前記背景の流し量と、振れの角速度を検出する検出手段にて検出された角速度と、前記撮像光学系の焦点距離とから、露光時間を演算する演算手段と、を有し、前記設定手段は、予め設定された複数の背景の流し量のレベルのいずれかを選択することにより、前記背景の流し量を設定し、前記演算手段は、前記背景の流し量が増加すると前記露光時間を伸ばし、前記角速度が増加すると前記露光時間を短くし、前記焦点距離が短くなると前記露光時間を短くするように演算する。 In order to achieve the above object, an imaging apparatus according to the present invention includes an imaging unit that captures a subject image incident through an imaging optical system, a setting unit that sets a background sink amount in panning shooting, and a panning shooting. The background flow amount set by the setting means, the background flow amount, the angular velocity detected by the detection means for detecting the angular velocity of shake, and the focal length of the imaging optical system, from possess a calculating means for calculating a exposure time, and the setting means, by selecting one of the flow amount of the levels of a plurality of background that is set in advance to set the flow amount of the background The computing means computes to extend the exposure time when the background flow amount increases, shorten the exposure time when the angular velocity increases, and shorten the exposure time when the focal length is shortened .

振れ補正系駆動部１１１は、振れ補正部１１２の駆動用のボイスコイル型モータであり、振れ補正系駆動部１１１によって駆動されることにより、振れ補正部１１２が光軸と垂直な方向に移動される。振れ補正系位置検出部１１３は、磁石とそれに対抗する位置に供えられたホールセンサとからなり、振れ補正部１１２の光軸と垂直な方向への移動量を検出し、その検出結果をＡ／Ｄ変換器１１４を介して、減算器１０８に供給する。振れ補正部１１２は、例えばシフトレンズであり、光軸と垂直な方向に移動されることにより光軸をシフトする、光学的に振れ補正可能な補正系である。または、撮像部１５９を光軸と垂直な方向に移動させても良い。その結果、装置の振れ等により生じる撮像面上の被写体の移動が補正された像が、撮像部１５９に結像される。 The shake correction system drive unit 111 is a voice coil type motor for driving the shake correction unit 112, and is driven by the shake correction system drive unit 111 to move the shake correction unit 112 in a direction perpendicular to the optical axis. The The shake correction system position detection unit 113 includes a magnet and a hall sensor provided at a position opposite to the magnet. The shake correction system position detection unit 113 detects the amount of movement of the shake correction unit 112 in the direction perpendicular to the optical axis. through D converter 114 is supplied to subtracters 108. The shake correction unit 112 is, for example, a shift lens, and is a correction system capable of optical shake correction that shifts the optical axis when moved in a direction perpendicular to the optical axis. Alternatively, the imaging unit 159 may be moved in a direction perpendicular to the optical axis. As a result, an image in which the movement of the subject on the imaging surface caused by the shake of the apparatus is corrected is formed on the imaging unit 159.

Claims

Imaging means for photographing a subject image incident through the imaging optical system;
A setting means for setting a background sink amount in panning shooting;
In the panning shooting, the background flow amount, the angular velocity detected by the detecting means for detecting the angular velocity of the shake, and the imaging optical system so as to be the background flow amount set by the setting device. a and a focal length, and calculating means for calculating the exposure time, and
The setting means sets the background sink amount by selecting one of a plurality of preset background sink levels,
The calculating means calculates the exposure time to be increased when the background sink amount is increased, the exposure time is shortened when the angular velocity is increased, and the exposure time is decreased when the focal length is shortened. An imaging device.

The imaging apparatus according to claim 1, further comprising a limiting unit that limits the exposure time to the threshold when the exposure time calculated by the calculation unit is equal to or greater than a predetermined threshold.

Motion vector detection means for obtaining and outputting a motion vector from the difference between frames of the image output from the imaging means;
Correction means for obtaining a shake correction amount based on at least one of the angular velocity and the motion vector and correcting shake by driving the shake correction means ;
The calculation means is configured so that when the product of the exposure time and the shake correction amount does not fall within the drive range of the shake correction means, the product falls within the drive range of the shake correction means. the imaging apparatus according to claim 1 or 2, characterized in that to change the exposure time.

A method for controlling an imaging apparatus during panning shooting by an imaging unit that images a subject image incident through an imaging optical system,
A setting step in which the setting means sets a background sink amount;
The calculation means has the background flow amount set in the setting step, the background flow amount, the angular velocity detected by the detection means for detecting the angular velocity of shake, and the focus of the imaging optical system. a distance from the, a calculation step of acquiring calculating the exposure time, and
In the setting step, by selecting one of a plurality of preset background flow levels, the background flow amount is set,
In the calculating step, the exposure time is extended when the background flow amount increases, the exposure time is shortened when the angular velocity increases, and the exposure time is shortened when the focal length is shortened. Control method.

The program for making a computer perform each process of the control method of Claim 4.

A computer-readable storage medium storing the program according to claim 5.