Unlock instant, AI-driven research and patent intelligence for your innovation.

Processing method for eliminating image smear applied to correlated imaging

A technology that correlates imaging and processing methods, applied in the field of image processing

Inactive Publication Date: 2020-10-23
BEIJING UNIV OF POSTS & TELECOMM
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for image smear processing based on Hessian matrix in correlation imaging, which can solve the problem of image smear in the imaging result graph caused by inappropriate detector parameter settings in the correlation imaging result graph, Improve image quality of imaging results and reduce image background noise

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Processing method for eliminating image smear applied to correlated imaging
  • Processing method for eliminating image smear applied to correlated imaging
  • Processing method for eliminating image smear applied to correlated imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The experimental data in this embodiment is the data obtained from the actual experimental collection, wherein the smear direction is the horizontal direction, and the reference arm light field sampling data contains 10,000 pictures, that is, the total number of samples is 10,000, and each picture has 224*224 pixels, stored in avi format, and the corresponding information of the light intensity of the detection arm, which is a 1*10000 vector data, stored in a text file. When applying the image smear processing algorithm, first read the video file with the help of an additional library, and store its content in the computer memory, and then obtain the light intensity response information of the signal arm, which is also stored in the memory, where the detection arm acquisition device exposure The time is 10ms, the exposure time of the reference arm acquisition device is 1ms, and the coherence time is about 8ms.

[0026] In the description of the drawings figure 1 is the...

Embodiment 2

[0041] In this embodiment, the experimental data is the data collected by the simulation experiment, wherein the smear direction is the direction inclined at an angle of 45°, and the reference arm light field sampling data contains 10,000 pictures, each picture has 224*224 pixels, stored In the avi format, the corresponding information of the light intensity of the detection arm is obtained by convolving and summing the light field information of the reference arm and the soft object used for simulation. When applying the image smear processing algorithm, first read the video file with the help of an additional library, and store its content in the computer memory, and then calculate the light intensity response information of the signal arm, which is also stored in the memory, where the detection arm acquisition device exposure The time is 10ms and the coherence time is about 8ms.

[0042] In the description of the drawings Figure 5 is the flow chart of this embodiment,

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a processing method for eliminating image smear applied to correlated imaging. The processing method adopts a laser device (1), frosted glass (2), an optical lens (3), a beam splitter (4), a target object (6), a light intensity detector (7), a light field detector (5), a data processing module (8) and terminal equipment (9), wherein laser passes through the frosted glass and generates a light field with random intensity, the light field is split by the beam splitter, adjusted by the optical lens and then received by the light intensity detector and the light field detector respectively, and obtained data is subjected to image recovery in an image recovery algorithm module. The invention provides an image smear processing algorithm. According to the processing method, a Hessian matrix is introduced to preprocess the light field data, the problem of image smear caused by factors such as long exposure time of a detector in correlated imaging application can be solved, a signal-to-noise ratio of a correlated imaging result image is improved, and the processing method is high in noise resistance, high in calculation speed and good in practical effect.

Description

Technical field: [0001] The invention belongs to the field of image processing, and in particular relates to a processing method for eliminating image smear based on a Hessian matrix in correlation imaging. Background technique: [0002] Traditional imaging in optics only involves the first-order statistical characteristics of light intensity. The light field intensity recorded by the detector is proportional to the photoelectron flow. After a certain exposure time accumulation, the interference, diffraction or imaging information of the object can be reproduced. The correlative imaging technology emerged at the end of the last century, opening up a new field of imaging using the correlation characteristics of a specific order of the illumination field. [0003] Correlation imaging performs multiple repeated measurements on the field of view, and then indirectly reconstructs the image of the measured object by calculating the correlation function of the multiple measurement ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C11/00G06T5/00
CPCG01C11/00G06T5/77
Inventor 常宸吴国华杨东玥尹龙飞罗斌
Owner BEIJING UNIV OF POSTS & TELECOMM