A method for extracting pointer of automobile instrument
An extraction method and technology of automobile instrumentation, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of large error, poor stability, low efficiency, etc., and achieve the effect of small error, directional orientation and high stability
Active Publication Date: 2019-01-04
安徽慧视金瞳科技有限公司
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Problems solved by technology
At present, most of the methods for obtaining instrument pointer information are manually identified and searched, which has large errors, poor stability and low efficiency.
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[0042] 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 creative efforts fall within the protection scope of the present invention.
[0043] see figure 1 As shown, the present invention is a method for extracting a pointer of an automobile meter, comprising the following steps: S1, obtaining a picture of a meter to be extracted, referring to image 3 shown;
[0044] S2, get the instrument background picture of the instrument picture whose pointer is to be extracted; this instrument background picture does not have a pointer, refer to Figure 4 shown;
[0045] S3, by detecting the frame differe...
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The invention discloses a method for extracting an automobile instrument pointer, which relates to the technical field of automobile instruments. The invention comprises the following steps: S1, obtaining the instrument picture of the to-be-extracted pointer; S2, obtaining the instrument background picture of the instrument picture to be extracted pointer; S3, detecting the frame difference between the instrument picture to be extracted and the instrument background picture to extract the difference part between the instrument picture and the background picture; S4, binarizing the difference part; S5, calculating the connected region after the binarization process to obtain the region of the pointer roughly: S6, calculating the best endpoint of the pointer, S7, connecting the two best endpoints obtained by the calculation is pointer pointing information. The method can quickly and accurately find the position area of the pointer in the meter, the pointing direction is high, the stability is high, the error is small and the efficiency is very high.
Description
technical field [0001] The invention belongs to the technical field of automobile meters, in particular to a method for extracting pointers of automobile meters. Background technique [0002] In the era of intelligent automation, many companies are constantly introducing automation equipment, including instrument cluster equipment. Combination meter equipment is a device for automatic detection of the instruments of automobiles and motorcycles, including the function of automatically detecting the running status of the instruments. The pointers in the meters of automobiles and motorcycles contain a lot of information about the running status, so it is very important to obtain the pointers of the meters when detecting the running status of the meters. At present, most of the methods for obtaining instrument pointer information are manually identified and searched, which has large errors, poor stability and low efficiency. [0003] How to obtain instrument pointer informatio...
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CPCG06V10/25G06V2201/02
Inventor 林传文汪俊锋程炳权张巧云
Owner 安徽慧视金瞳科技有限公司