High-precision real-time multi-scale dial pointer detection method and system

A detection method and high-precision technology, applied in the field of image recognition, can solve problems such as time-consuming and inability to realize real-time target detection, and achieve the effects of good robustness, improved recall rate, and powerful functions

Active Publication Date: 2020-03-24
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

But they are all too time-consuming to achieve real-time object detection

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  • High-precision real-time multi-scale dial pointer detection method and system
  • High-precision real-time multi-scale dial pointer detection method and system
  • High-precision real-time multi-scale dial pointer detection method and system

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[0051]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0052] Now in conjunction with accompanying drawing and embodiment the inventive method is further described:

[0053] An embodiment of a high-precision real-time multi-scale dial pointer detection method, such as figure 1 As shown, this embodiment specifically includes the following steps:

[0054] Step 1, the production of dial data set samples: select 1000 different types of dial sample pict...

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Abstract

The invention discloses a high-precision real-time multi-scale dial pointer detection method, and belongs to the image processing technology. The method comprises the following steps: marking dial pictures in a training set, and recording the positions of pointer areas in the dial pictures; carrying out data enhancement operation on the dial plate pictures in the training set; inputting the training set into a FaceBoxes network, and training to obtain a dial pointer detection model; and finally, inputting the to-be-detected image into the dial pointer detection model, outputting a pointer frame in the to-be-detected image, and determining the pointing direction of the pointer according to the center of the dial and the center point of the pointer frame. Meanwhile, pointer pointing is further refined by using self-adaptive Hough straight line detection on the detected pointer frame, and preferred pointing information of the pointer is given by integrating the two pointer pointing extraction methods; and the invention further discloses a high-precision real-time multi-scale dial pointer detection system, the pointer detection efficiency and accuracy are greatly improved, the algorithm is more stable, and the robustness is better.

Description

technical field [0001] The invention belongs to the technical field of image recognition, and more specifically relates to a high-precision real-time multi-scale pointer detection method and system. Background technique [0002] Traditional pointer extraction algorithms include difference shadow method, Hough transform line detection and so on. The subtraction method is one of the simplest methods in the image segmentation algorithm. Its idea is to compare the difference of images, and then judge different images by comparing the difference of image gray level or the statistics of histogram. The difference image method is often used in dynamic detection and target recognition and tracking. Through difference comparison, the effect of eliminating the background can be achieved. The advantage of difference shadow method is that its algorithm is simple, fast, and the result is accurate. But the shortcomings are also obvious. There are many strict prerequisites. It requires t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/46G06K9/44
CPCG06V10/34G06V10/44G06V2201/02G06F18/214G06F18/24
Inventor 韩守东王俊凯郑丽君陈阳
Owner HUAZHONG UNIV OF SCI & TECH
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