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Self-adapted adjustment method for image brightness of high resolution and panorama vision system

An adaptive adjustment and panoramic vision technology, applied in the field of image processing, can solve problems such as reflected brightness, poor image brightness query scheme, automatic adjustment cannot be guaranteed, etc.

Inactive Publication Date: 2008-02-13
HARBIN ENG UNIV
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Problems solved by technology

[0006] The disadvantage of this patent is that the query scheme of image brightness is not good, the calculation of image brightness is local, and the local image brightness cannot reflect the current overall image brightness at any time
In addition, this patent has certain defects in the adjustment method of exposure time, which cannot guarantee automatic adjustment at any moment of natural brightness change

Method used

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  • Self-adapted adjustment method for image brightness of high resolution and panorama vision system
  • Self-adapted adjustment method for image brightness of high resolution and panorama vision system

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Embodiment Construction

[0046] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0047] 1Use the virtual serial port function of the camera to virtualize the camera terminal into the serial port COM3. After restarting, use the serial port debugging assistant to assist in debugging. After confirming that COM3 has taken effect, continue to the next step.

[0048] 2 Add serial port control in the panoramic vision application software. This program uses VC++6.0 as the development tool, and the project name is CBayerDemo. The following operations are performed in sequence: Toolbar-Project-Add ToProject-Components and Controls--Registered ActiveX Controls--Microsoft Communications Control, version 6.0-insert, then the serial port The icon will appear in the resource dialog, just drag and drop it into the main dialog.

[0049] 3 Open the ClassWizard->Member Viariables tab, add a control variable for IDC_MSCOMM1: m_ctrlComm.

[0050] 4 Initialize th...

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Abstract

The present invention provides a method for image brightness self-adaptive adjustment of high-resolution catadioptric vision system. (1)The camera terminal is regarded as an ordinary virtual serial port; because COM1 and COM2 are reserved serial ports, the camera terminal is regarded as virtual COM3 to avoid collision; (2)the virtual serial port is initialized; (3)using the brightness inquiry function, the brightness threshold of the image is calculated; (4) the brightness is determined whether it is in the range of brightness threshold(60-75), if not, the brightness self-adaptive adjustment function is performed. The mode of changing the camera exposure time in the present invention is realized by auto adjusting the camera exposure time as necessary in program, and by using the function of virtual serial port of the camera and simultaneously binding the image processing method. High resolution CCD camera combined with manual aperture lens can self-adapt the variation of natural brightness, and the response time is less than 3 second and the success rate of image self-adaptive adjustment reaches 100percent.

Description

(1) Technical field [0001] The invention relates to an image processing method, in particular to a method for processing image brightness in a high-resolution panoramic vision system. (2) Background technology [0002] With the continuous improvement of the panoramic vision system, panoramic vision technology has been initially applied in the field of vision and optics. In the indoor environment, panoramic vision systems have been widely used in visual fields such as video conferencing abroad, and corresponding research has been carried out in China in recent years, but there are few examples in practical applications. In the outdoor environment, since the brightness of the light in the natural environment will change at any time, the images collected by the imager of the panoramic vision system will also change accordingly. When it is very uneven, it will seriously affect the viewing quality of the image, so how to adjust the brightness of the image has become the first te...

Claims

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Application Information

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IPC IPC(8): H04N5/243H04N5/235H04N23/76
Inventor 朱齐丹夏桂华张智韩瑞蔡成涛王立辉陆军原新栗蓬张忠民
Owner HARBIN ENG UNIV
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