Constant-speed blurred image construction method and device based on splicing of two frames of static images

A technology for blurred images and static images, applied in image analysis, image data processing, instruments, etc., can solve the problems of reducing experiment difficulty and experiment cost

Active Publication Date: 2012-08-29
成都卫瀚科技合伙企业(有限合伙)
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Problems solved by technology

[0012] The present invention is aimed at the problem of how to simulate real scenes under laboratory conditions, high-temperature and high-speed targets, and obtain motion blurred images with the same effect in the prior art, and proposes a uniform-speed blurred image based on two-frame static image stitching Construction method and device; the method and device can replace t

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  • Constant-speed blurred image construction method and device based on splicing of two frames of static images
  • Constant-speed blurred image construction method and device based on splicing of two frames of static images
  • Constant-speed blurred image construction method and device based on splicing of two frames of static images

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Example

[0081] example 1

[0082] figure 1 It is a structure diagram of a uniform blur image construction device based on the combination of two static images. The substitute target 1, the substitute optical system 2, and the image sensor 3 are arranged in sequence along the light propagation direction. The substitute target 1 is imaged onto the surface of the image sensor 3 through the substitute optical system 2, and the substitute target 1 of the device includes a static background and moving There are two parts of the target. Among them, the static background covers the entire field of view of the substitute optical system 2, and the moving target can move two-dimensionally in the direction of the optical axis of the device within the field of view of the substitute optical system 2. In addition, the image sensor 3 can move in the substitute optical system 2. Make a two-dimensional movement in the field of view perpendicular to the optical axis of the device.

[0083] The following tw...

Example

[0110] Example 2

[0111] This example will figure 1 The substitute target 1 in the is replaced by a point target, and the remaining components and parameters are exactly the same.

[0112] The uniform speed blur image construction method based on the merging of two static images includes the following steps:

[0113] a. In a real scene, according to the moving speed of the point target v 1 =680m / s, the exposure time t of the image sensor 3 1 =50ms, and the lateral magnification of the optical system β 1 =-10 -5 , Get the moving distance of the point target image on the surface of the image sensor 3: d=v 1 ·T 1 ·Β 1 =680×50×10 -3 ×(-10 -5 )=-340μm;

[0114] b. In the simulated scene, according to the lateral magnification β of the substitute optical system 2 2 =-0.0557, using the moving distance d of the point target image obtained in step a on the surface of the image sensor 3 = 340μm, get the moving distance d of the substitute point target 1 between two imagings 2 =d / β 2 =-340 / (-0.0...

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Abstract

The invention provides a constant-speed blurred image construction method and device based on splicing of two frames of static images, belonging to an image movement analyzing part in the common image data processing or generating field. The method comprises the following steps of: deducing a blurred distance of a target under an actual condition according to the target in an actual scene, an optical system and parameters of an image sensor, and inversely deducing to an image space to obtain a distance of positions of the target in two spaces; and carrying out two times of imaging on a substituted target of the positions of the two spaces and constructing a constant-speed blurred image according to image information. The substituted target in the device comprises two parts including a static background and a movable target; and the movable target can do two-dimensional movement in a view field range of a substituted optical system in a direction which is vertical to an optical axis of the device. The method and the device can utilize a room-temperature visible light target to equivalently replace a high-temperature target; a low-speed movement is matched with two times of imaging to equivalently replace a high-speed movement, so that the experiment difficulty is reduced and the experiment safety is improved; and a plurality of groups of experiment data are easy to obtain and the experiment cost is greatly reduced.

Description

technical field [0001] A method and device for constructing a uniform-speed blurred image based on the stitching of two frames of static images belongs to the motion analysis part in the field of general image data processing or generation, and in particular relates to a method and device for constructing a uniform-speed blurred image based on stitching of two frames of static images. Background technique [0002] The moving image transfer function is a physical quantity that quantitatively describes the degree of image quality degradation caused by the movement of the target image on the surface of the image sensor. The motion information of the target image is extracted from a motion blurred image to obtain the moving image transfer function, which can be used for the motion blurred image. Restoration provides a theoretical basis. [0003] This technology can be directly applied in the field of image information acquisition of aerospace and fast-moving devices, imaging ult...

Claims

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Application Information

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IPC IPC(8): G06T7/20
Inventor 谭久彬赵烟桥刘俭
Owner 成都卫瀚科技合伙企业(有限合伙)
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