Picture content extraction method for domestic thin client
A technology of thin client and extraction method, which is applied in computer components, computer security devices, instruments, etc., can solve problems such as weak hardware performance, small memory, and dependency conflicts, and achieve the effect of avoiding dependency conflicts and occupying a small amount of memory
Inactive Publication Date: 2020-04-10
JIANGSU BOZHI SOFTWARE TECH CO LTD
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Problems solved by technology
[0002] Domestic thin clients are mostly based on the Linux kernel, with weak hardware performance and small memory
At present, the mainstream method of image content extraction on this platform is based on the OCR technology of the Google Tesseract project, but the recognition rate for Chinese is low, and this method needs to install software, which is intrusive to the client operating system and will also cause problems. Additional dependency conflicts lead to poor software compatibility, and the Microsoft OfficeDocument Imaging virtual machine solution based on the domestic live CD operating system with a high recognition rate requires relatively large client memory and cannot be applied to thin client scenarios.
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[0008] A picture content extraction method for domestic thin clients, comprising: a WINE compatible subsystem and a MODI content extraction subsystem based on the domestic operating system kernel;
[0009] First use the domestic thin client with its own operating system to boot the computer;
[0010] Start the WINE compatible subsystem based on the domestic operating system kernel, which will register and intercept Windows-related system calls after startup;
[0011] Then start the MODI content extraction subsystem and inject it into the WINE compatible subsystem;
[0012] After the initialization and startup of the two systems are completed, the image Chinese content extraction service can be provided;
[0013] The caller passes in the path of the image file to be extracted to the MODI content extraction subsystem, and the latter will call Windows-related system calls during analysis. At this time, the WINE compatible subsystem will intercept these system calls and convert t...
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The invention provides a picture content extraction method for a domestic thin client. The method comprises a WINE compatible subsystem based on a domestic operating system kernel and an MODI contentextraction subsystem. The method comprises the following steps: firstly, starting the WINE compatible subsystem based on the domestic operating system kernel; after the subsystem is started, registering and intercepting system calls related to Windows, starting the MODI content extraction subsystem and performing injection into the WINE compatible subsystem, wherein picture Chinese content extraction service can be provided after the two systems are started; enabling a caller to select a picture file of which the content is to be extracted, transmitting a path to the MODI content extraction subsystem, and enabling the MODI content extraction subsystem to perform system call conversion by means of the WINE compatible subsystem, extracting a Chinese text in a picture and returning the Chinese text to the caller. The method has the advantages of higher Chinese content recognition rate, no invasiveness to the operating system environment of the thin client, no residual use trace, particularly smaller occupation to memory resources of the thin client, and wide applicability.
Description
technical field [0001] It involves the field of information security, especially the content audit application field of the localization of software and hardware of a confidential unit. Background technique [0002] Domestic thin clients are mostly based on the Linux kernel, with weak hardware performance and small memory. At present, the mainstream method of image content extraction on this platform is based on the OCR technology of the Google Tesseract project, but the recognition rate for Chinese is low, and this method needs to install software, which is intrusive to the client operating system and will also cause problems. Additional dependency conflicts lead to poor software compatibility, and the Microsoft OfficeDocument Imaging virtual machine solution based on the domestic live CD operating system with a high recognition rate requires relatively large client memory and cannot be applied to thin client scenarios. Contents of the invention [0003] A method for ext...
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IPC IPC(8): G06F21/62G06K9/00
CPCG06F21/6218G06V10/94
Inventor 傅涛郑秩王力王路路梁旭
Owner JIANGSU BOZHI SOFTWARE TECH CO LTD