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Method for increasing image data dynamic range and image acquiring system

An image acquisition system and image data technology, applied in image communication, TV system components, gain control, etc., can solve the problems of not meeting the current needs, equipment volume, cost constraints, etc., to solve device performance limitations and system requirements , to avoid the effect of algorithm correction

Active Publication Date: 2009-05-20
NUCTECH CO LTD
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  • Claims
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Problems solved by technology

[0011] With the development of radiographic inspection systems in the direction of small size, high speed, and high density, the traditional method of increasing image data by adjusting system parameters has been unable to meet the current needs due to many limitations such as equipment volume and cost.

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  • Method for increasing image data dynamic range and image acquiring system
  • Method for increasing image data dynamic range and image acquiring system
  • Method for increasing image data dynamic range and image acquiring system

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Embodiment Construction

[0027] The present invention will be described in further detail below through embodiments with reference to the accompanying drawings. The drawings are only schematic, and those parts not directly related to the present invention and well-known to those skilled in the art are omitted so as not to obscure the present invention unnecessarily. The following detailed description is not intended to limit the scope of the invention, which is defined by the appended claims.

[0028] Figure 2A and 2B A flow chart of a method for increasing the dynamic range of image data of an image acquisition system according to the present invention is schematically shown. exist Figure 2A The case of an image acquisition system with only one detector circuit is described in . At step 200, an electrical signal is received from a detector circuit. In step 202, integral amplification is performed on the received signal. Next, A / D conversion is performed on the integrated and amplified signal, a...

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Abstract

The invention provides a method for increasing image data dynamic range of image acquisition systems. The method comprises the steps of receiving a signal from a detector circuit, subjecting the received signal to integral amplification, performing A / D conversion to the signal subjected to the integral amplification and storing a combination of a system parameter value and an A / D conversion result together as image data. In addition, the invention also provides an image acquisition system and a ray inspection system comprising the image acquisition system.

Description

technical field [0001] The invention relates to a method for increasing the dynamic range of image data of an image acquisition system, and to an image acquisition system applying the method and a radiographic inspection system including the image acquisition system. Background technique [0002] The image acquisition circuit structure of a common radiographic inspection system is shown in Figure 1. In the above-mentioned radiation inspection system, since the degree of absorption of radiation by the inspected objects varies greatly, it is required that the image acquisition circuit can provide a large dynamic range. However, the dynamic range provided by the current electronic devices is limited and cannot meet the above requirements. Therefore, other technical means are needed to increase the dynamic range of the image acquisition circuit. [0003] The current common solutions can be divided into two categories. The first category is to process the signal output by the de...

Claims

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Application Information

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IPC IPC(8): G01N23/04A61B6/00H05G1/60H03G3/00G01T1/17H04N5/32
Inventor 刘文国张鹏刘以农
Owner NUCTECH CO LTD
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