Real-time displaying ghost imaging scheme

A technology of real-time display and ghost imaging, applied in the field of ghost imaging research, can solve the problems of increasing imaging time, unfavorable to the practical application of ghost imaging, and poor real-time performance, reducing the requirements for computing power, reducing memory capacity requirements, and preventing data redundancy. Resaturation effect

Inactive Publication Date: 2019-08-16
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

In the prior art scheme, it is necessary to convert 10 3 ~10 4 All the data obtained from the order of magnitude measurements are stored, which involves very large-scale data storage; the subsequent reconstruction process also involves large matrix operations with high computational complexity
Under this scheme, the ghost imaging process is divided into two independent modules of data acquisition and data calculation, which increases the overall imaging time, poor real-time performance, and very high hardware cost, which is not conducive to the practical application of ghost imaging

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Embodiment Construction

[0011] figure 1 It is a structural diagram of the present invention. in

[0012] 1 - Trigger signal. It is used to control the synchronous acquisition from the reference arm camera (2) and the signal arm barrel detector (3) to obtain the reference light field intensity matrix (7) and the barrel detector signal (8) respectively, so as to realize a measurement in the process of ghost imaging .

[0013] 2- Reference arm camera. It has the ability of spatial resolution and is used to collect the reference light field. Its effective number of pixels is called the number of frame pixels.

[0014] 3- Signal Arm Barrel Detector. Without spatial resolution capability, it is used to receive the total light intensity of the light signal reflected or transmitted after the light signal in the signal arm passes through the object.

[0015] 4- storage area. It is used to store the collected data and the intermediate results of the operation process. The collected data includes the n...

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Abstract

The invention discloses a scheme capable of computing and displaying a ghost imaging result in real time. Ghost imaging is an indirect imaging mode. A typical structure comprises the fact that a lightsource is divided into two ways; one way irradiates an object, total light intensity reflected or transmitted from the object is recorded through utilization of a bucket detector, and the total lightintensity is called as a signal arm; and light field information of the other way is recorded through utilization of a camera, and the light field information is called as a reference arm. Through repeated measurement, a great deal of signal arm and reference arm data is obtained, and further reconstruction operation is carried out through utilization of the data, thereby obtaining an image of the object. According to an existing ghost imaging scheme, all measured data needs to be stored and then data processing and operation are carried out, so required storage capacity and operation quantity are very great, and real-time imaging cannot be realized. According to the scheme, for the problem, the real-time displaying ghost imaging scheme is provided, the data operation is carried out synchronously in each measurement process and only a key data result is stored, so the storage capacity and operation complexity can be reduced, and a ghost imaging result is displayed in real time.

Description

technical field [0001] The invention belongs to the research field of ghost imaging, and in particular relates to a ghost imaging scheme capable of displaying imaging results in real time. Background technique [0002] The classic direct imaging method is to irradiate the light source on the object, and directly detect the light field reflected or transmitted from the object through a detector with spatial light field resolution capability (such as a camera) to form an image. The typical structure of ghost imaging is to divide the light source into two paths: one path is irradiated on the object, and then a detector (single-point detection, or barrel detection) without spatial light field resolution capability is used to detect and record the reflection or transmission from the object. The total light intensity of the light field is called the signal arm; the other way does not pass through the object, but directly uses a detector (such as a camera) with spatial light field ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01D5/26
CPCG01D5/26
Inventor尹龙飞吴国华尹鹏起
OwnerBEIJING UNIV OF POSTS & TELECOMM