Method of adjusting window width and window level of medical image in a browser

A medical image and browser technology, applied in the field of medical image processing, can solve the problems of increasing the difficulty and complexity of implementation, reducing the speed of medical image processing, unable to process DICOM medical images, etc. Effect

Inactive Publication Date: 2013-05-08
LANWON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Raw DICOM medical images cannot be processed on the Web without the assistance of browser plug-ins (such as ActiveX controls, Java Applets, etc.)
[0009] Because the existing medical images need to install AxtiveX control or Ja

Method used

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  • Method of adjusting window width and window level of medical image in a browser
  • Method of adjusting window width and window level of medical image in a browser

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Embodiment Construction

[0042] The core idea of ​​the present invention is: no need to install any plug-ins in the browser, directly send request parameters to the server in real time through AJAX (Asynchronous JavaScript and XML, asynchronous JavaScript and XML) technology. The server generates corresponding pictures according to the request parameters, and then sends them to the browser for display.

[0043] In order to facilitate the understanding of the present invention, a brief introduction to the AJAX technology is given first.

[0044] AJAX is used to describe a group of technologies that enable browsers to provide users with a more natural browsing experience. Before AJAX, Web sites forced users into a submit / wait / redisplay paradigm where user actions were always synchronized with the server's "think time". AJAX provides the ability to communicate asynchronously with the server, freeing the user from the request / response cycle. With AJAX, when the user clicks a button, JavaScript and DHTML...

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Abstract

The invention discloses a method of adjusting window width and window level of medical image in a browser. The method includes steps that a browser loads medical images of DICOM(Digital Imaging and Communications in Medicine), the browser hooks mouse events of moving and adjusting window width and window level of medical images of DICOM through a mouse, the browser generates in real time request messages sent to a server for request parameter, the browser sent the request messages to the server by using AJAX(Asynchronous JavaScript and XML), the server adjusts the medical images of DICOM into JPG (Joint Picture Group) images with specified window width and window level according to the request parameter of the request massages and the server sends the JPG images to the browser to display. The method can achieve to browse medical images of DICOM and adjust window width and window level of images without needing to install client-end or any plug-in in the browser and the whole process is more concise and is conveniently used by users.

Description

technical field [0001] The invention relates to medical image processing technology, in particular to a method for adjusting the window width and window level of medical images on a browser. Background technique [0002] The resolution of medical images is high, and the pixel grayscale value is usually not lower than 12-bit (bit) 4096 levels, while ordinary displays can only provide 8-bit 256-level grayscale due to limited dynamic range and operating system restrictions. Moreover, since the medical images of various human tissues have relatively stable values, they are only interested in pixel values ​​within a specific range when performing image segmentation processing. Therefore, the medical image processing system must be able to display specific pixel values ​​according to the needs of researchers. value, masking other ranges of pixel values. Generally speaking, this function is realized by adjusting the window width and window level. [0003] In the window adjustment...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 赵传氐邓庆林彭云
Owner LANWON TECH
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