Scanning data compression method and device, acquisition system and medical imaging system

A technology of scanning data and compression method, applied in the field of data processing, can solve the problems of low data transmission efficiency of CT system, high system cost, CT scanning data compression, etc., and achieve the effect of reducing bandwidth, improving transmission efficiency, and reducing cost

Active Publication Date: 2019-08-20
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing CT scan system does not compress the CT scan data, the data transmission efficiency of the CT system is low, and the system cost is high

Method used

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  • Scanning data compression method and device, acquisition system and medical imaging system
  • Scanning data compression method and device, acquisition system and medical imaging system
  • Scanning data compression method and device, acquisition system and medical imaging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It is a flowchart of a scan data compression method provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of scan data compression. The method can be executed by a scan data compression device, and specifically includes the following steps:

[0029] Step 110, acquire the scan data, and calculate the difference data between the current scan data and the previous frame scan data.

[0030] Wherein, the scan data is data used for imaging, and is generally digital data. It can be the data collected by the detector, or the logarithmically compressed data collected by the detector, also called raw data. The scan data may be logarithmically compressed raw data in the CT imaging system.

[0031] Optionally, the difference data between the current scan data and the previous frame scan data includes:

[0032] Determine whether the current data is the first frame data;

[0033] If so, transfer the current data to the buffer;

[0...

Embodiment 2

[0062] figure 2 It is a flowchart of a scanning data compression method provided by Embodiment 2 of the present invention. The technical solution of this embodiment is further refined on the basis of the above technical solution. Optionally, as figure 2 As shown, the scanning data compression method provided by the embodiment of the present invention includes:

[0063] Step 210, acquire the scan data, and calculate the difference data between the current scan data and the previous frame scan data.

[0064] Step 220: Perform preset data transformation on the distribution mode of the difference data to obtain transformed difference data, wherein the data of interest in the transformed difference data is within a set area.

[0065] Step 230 , separating the transformed difference data to obtain a high level difference value and a low level difference value.

[0066] Exemplarily, suppose the transformed difference data F i The number of digits is N A , by separating, the F ...

Embodiment 3

[0100] image 3 It is a schematic structural diagram of a scanning data compression device in Embodiment 3 of the present invention, such as image 3 As shown, the scanning data compression device includes: a difference acquisition module 310 , a difference transformation module 320 and a data compression module 330 .

[0101] Among them, the difference acquisition module 310 is used to acquire the scan data, and calculate the difference between the current scan data and the last frame of scan data; the difference conversion module 320 is used to perform preset conversion on the difference data to obtain Difference data with a distribution rule; wherein, the distribution rule is within a set area of ​​the concerned data set of the difference data; the data compression module 330 is configured to perform data compression on the transformed difference data.

[0102] The technical solution of the embodiment of the present invention solves the problem of data compression of the s...

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Abstract

The invention discloses a scanning data compression method and device, an acquisition system and a medical system. The scanning data compression method comprises the following steps: acquiring scanning data, and calculating difference data between current scanning data and previous frame scanning data; carrying out preset data conversion on the distribution mode of the difference data to obtain converted difference data, and concerned data of the converted difference data being in a set area; and performing data compression on the converted difference data. According to the technical scheme ofthe embodiment of the invention, the scanning data is compressed, the data bandwidth of the system is reduced, and the data transmission efficiency is improved.

Description

technical field [0001] Embodiments of the present invention relate to data processing technologies, and in particular to a scan data compression method, device, acquisition system, and medical imaging system. Background technique [0002] Nowadays, CT (X-ray computerized tomography, Computed Tomography) is more and more widely used. The CT scanning system uses X-rays for tomographic scanning and detectors for reception. The data acquisition system converts the received signals into digital signals, usually 16-bit logarithmic data, and then transmits them to the data receiving system through the port. [0003] With the advancement of science and technology, people have higher and higher performance requirements for CT systems, and the amount of CT scan data is also increasing, which requires a larger transmission bandwidth and higher bandwidth during the transmission of CT scan data. The transmission speed is increasing, and the pressure on the CT data acquisition system and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/137H04N19/17H04N19/423
CPCH04N19/137H04N19/17H04N19/423
Inventor 胡仁芳
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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