JP2017126889A5

JP2017126889A5 -

Info

Publication number: JP2017126889A5
Application number: JP2016005379A
Authority: JP
Filing date: 2016-01-14
Publication date: 2019-02-21
Anticipated expiration: 2036-01-14

Description

上記課題を解決するための本発明は、画像処理装置であって、
動画像を構成する複数のフレームのうち第１のフレームを選択する選択手段と、
前記第１のフレームの近傍のフレームから第２のフレームを選択し、前記第１のフレームと前記第２のフレームとに基づき、前記第１のフレームのノイズ低減処理を実行して静止画を生成する処理手段と
を備え、
前記処理手段は、前記複数のフレームのうち、前記第１のフレームの近傍のフレームであって、該フレームの撮影条件と、前記第１のフレームの撮影条件との変化が所定の範囲内であるフレームを前記第２のフレームとして選択することを特徴とする。 The present invention for solving the above problems is an image processing apparatus,
Selecting means for selecting a first frame among a plurality of frames constituting a moving image;
A second frame is selected from frames in the vicinity of the first frame, and a still image is generated by executing noise reduction processing of the first frame based on the first frame and the second frame. Processing means for
The processing means is a frame in the vicinity of the first frame among the plurality of frames, and a change between the shooting condition of the frame and the shooting condition of the first frame is within a predetermined range. A frame is selected as the second frame.

Claims

Selecting means for selecting a first frame among a plurality of frames constituting a moving image;
A second frame is selected from frames in the vicinity of the first frame, and a still image is generated by executing noise reduction processing of the first frame based on the first frame and the second frame. Processing means for
The processing means is a frame in the vicinity of the first frame among the plurality of frames, and a change between the shooting condition of the frame and the shooting condition of the first frame is within a predetermined range. An image processing apparatus, wherein a frame is selected as the second frame.

The moving image includes information on a focus position as the shooting condition of the frame,
The image processing apparatus according to claim 1, wherein the processing unit selects, as the second frame, a frame in which a shift amount of the focus position from the focus position of the first frame is smaller than a predetermined amount.

The moving image includes information of an exposure setting value as the shooting condition of the frame,
3. The method according to claim 1, wherein the processing unit selects, as the second frame, a frame in which an amount of change in the exposure setting value from the exposure setting value of the first frame is smaller than a predetermined amount. Image processing device.

The processing means obtains a frame group in which the change is within a predetermined range for each of a plurality of different shooting conditions from a frame in the vicinity of the first frame, and is a range overlapping in the obtained frame group, the image processing apparatus according to any one of claims 1 3, characterized in that selects a frame to be included in the range that includes the first frame as the second frame.

The imaging condition includes a first condition for determining a change by comparison with the first frame, and a second condition for determining a change by comparing between adjacent frames. The image processing apparatus according to any one of claims 1 to 4 .

The processing means, the image processing according to any one of claims 1 to 5, characterized by selecting said second frame based on a frame number which is determined in accordance with the intensity of the noise reduction processing to be executed apparatus.

When the number of the frames whose change from the shooting condition of the first frame is within a predetermined range is less than the number of frames determined according to the intensity of the noise reduction processing to be executed, The image processing apparatus according to claim 6 , wherein a frame whose change with respect to any one of a plurality of photographing conditions is within a predetermined range is selected as the second frame.

The image processing apparatus according to claim 7 , wherein any one of the plurality of shooting conditions is information on a focus position.

The moving image includes information on an output signal from an angular velocity sensor of an imaging device that has generated the moving image as the shooting condition of the frame,
The processing means includes a frame in which a change in the output signal between adjacent frames from a frame in the vicinity of the first frame changes by more than a predetermined amount, and a time when viewed from the first frame rather than the frame. 9. The image processing apparatus according to claim 1, wherein the second frame is selected by excluding a frame far from the image.

Imaging means;
Imaging apparatus characterized by comprising an image processing apparatus according to any one of claims 1 to 9.

A selection step in which the selection means of the image processing apparatus selects the first frame among a plurality of frames constituting the moving image;
The processing means of the image processing apparatus selects a second frame from frames in the vicinity of the first frame, and reduces noise in the first frame based on the first frame and the second frame. processing and a processing step of generating the still image I line,
In the processing step, among the plurality of frames, the frame is in the vicinity of the first frame, and a change between the shooting condition of the frame and the shooting condition of the first frame is within a predetermined range. An image processing method, wherein a frame is selected as the second frame.

The program for functioning a computer as each means of the image processing apparatus of any one of Claim 1 to 9 .