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Patent Searching and Data


Title:
AUTO EXPOSURE CONTROL SYSTEM AND IMAGE CORRECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/208374
Kind Code:
A1
Abstract:
Disclosed are an auto exposure control system and an image correction method. The system comprises a main control unit and a plurality of auto exposure units, wherein the main control unit is connected to each of the auto exposure units; and the auto exposure units are in cascading connection. According to the system, detection of each X-ray source is realized by means of auto exposure units, such that an energy accumulation value and a KV level of X-rays are obtained; and when the energy accumulation value of X-rays reaches an energy threshold value, an auto exposure control signal is sent to a main control unit, such that the main control unit adjusts an exposure time sequence according to the auto exposure control signal, the aim of auto exposure control is achieved, and energy output by means of a single instance of exposure of X-rays remains relatively fixed, thereby optimizing the problem of an unstable output of X-rays, and solving the problem of inconsistent X-ray outputs between various ray sources in an X-ray image system with multiple ray sources.

Inventors:
CUI ZHILI (CN)
LI YUNXIANG (CN)
ZHANG YOUWEI (CN)
WEI QING (CN)
Application Number:
PCT/CN2020/119674
Publication Date:
October 21, 2021
Filing Date:
September 30, 2020
Export Citation:
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Assignee:
NANOVISION TECH BEIJING CO LTD (CN)
International Classes:
H04N5/235; H04N5/32
Foreign References:
CN111447373A2020-07-24
CN109875587A2019-06-14
CN108918559A2018-11-30
CN109521455A2019-03-26
CN104640337A2015-05-20
CN105078499A2015-11-25
US20090180585A12009-07-16
Attorney, Agent or Firm:
BEIJING GENIUS ESSEN INTELLECTUAL PROPERTY OFFICE (CN)
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