Image adjusting method and system of photoelectric navigation equipment
A technology of a navigation device and an adjustment method, which is applied to parts of a TV system, image communication, image data processing, etc., can solve the problems of slow adjustment speed, rough adjustment method, and inconspicuous image features, and achieve the effect of improving contrast.
Active Publication Date: 2019-09-17
无锡英斯特微电子有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This adjustment method is relatively rough, the adjustment speed is slow, the adjusted image contrast is low, the image features are not obvious, and it cannot meet the displacement calculation accuracy of the navigation equipment.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] The object of the present invention is to provide an image adjustment method and system for a photoelectric navigation device, which can improve the contrast of the image and the displacement calculation accuracy of the photoelectric navigation device.
[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the ac...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an image adjusting method and system of photoelectric navigation equipment. The method comprises the following steps: acquiring an image signal; setting an amplification factor, an offset voltage and exposure time; performing offset amplification on the image; converting the image after offset amplification into a digital signal; calculating an average pixel value of the image according to the digital signal; calculating an absolute value of a difference between a preset value and the average pixel value; and comparing the absolute value of the difference between the average pixel value and the average pixel value with a set threshold value so as to adjust the magnification factor, the offset voltage and the exposure time of the next frame of image, and repeating the above steps until the image adjustment is completed. According to the invention, the image contrast ratio and the displacement calculation precision of the photoelectric navigation equipment can be improved.
Description
technical field [0001] The invention relates to the field of image adjustment, in particular to an image adjustment method and system for a photoelectric navigation device. Background technique [0002] The photoelectric navigation device senses the background interface (such as desktop, ground, paper, mouse pad, etc.) to the image sensor of the photoelectric navigation device through the reflection of light. The navigation device uses a specific algorithm to calculate the movement displacement. Applications such as mouse, path movement Robots, etc.; image brightness, contrast, noise, etc. will affect the calculation results. [0003] The image adjustment in the prior art is mainly by calculating the average value of the image. If the average value is low, the exposure time will be increased, if the average value is high, the exposure time will be reduced, and the adjustment will be stopped when the average value reaches a reasonable range. This adjustment method is relativ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04N5/232H04N5/235H04N5/268G06T3/00
CPCH04N5/268H04N23/64H04N23/73G06T3/04
Inventor 徐康
Owner 无锡英斯特微电子有限公司