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Method and system for detecting foreign materials

A foreign object detection and foreign object technology, applied in image data processing, instruments, character and pattern recognition, etc., can solve the problems of time-consuming, laborious, loss, and delay in obtaining evidence, and achieve the effect of avoiding loss of interests and preventing criminal behavior

Active Publication Date: 2011-05-18
GRG BAKING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the existing ATM monitoring system guarantees the safe operation of the ATM machine to a certain extent, there is a defect that it can only provide evidence after the event, so it will delay the best chance to solve the incident
Moreover, obtaining evidence afterwards is time-consuming and laborious. Even if criminal evidence can be found, the damage may be irreparable.

Method used

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  • Method and system for detecting foreign materials
  • Method and system for detecting foreign materials
  • Method and system for detecting foreign materials

Examples

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no. 2 example

[0076] Such as figure 2 As shown, the second embodiment of the present invention specifically includes the following steps:

[0077] S200, taking pictures of the detection area, and acquiring image data of the detection area;

[0078] S201, perform statistics according to the main color and color depth information of each pixel of the image, and calculate the feature value of the image; wherein, the calculation method of the image feature value in this step is the same as that of the above-mentioned first embodiment, I won't repeat them here.

[0079] S202. Comparing the difference between the feature value of the image and the mean value of the feature value of the previous L images, and calculating a first difference rate;

[0080] S203, comparing the difference between the feature value of the image and the corresponding image reference value conforming to the law of meteorological changes, and calculating a second difference rate;

[0081] S204. Determine whether there...

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Abstract

The embodiment of the invention discloses a method and a system for detecting foreign materials. The method comprises: shooting a detected region and acquiring image data of the detected region; calculating a characteristic value of an image through the statistics of essential color and color depth information of various pixel points of the image; and comparing the difference between the characteristic value of the image and a mean value of the characteristic values of the prior L images, and determining whether the detected region has the foreign materials according to the difference rate ofthe two values. The embodiment of the invention can accurately detect the field change in real time by processing video images of the detected region.

Description

technical field [0001] The invention relates to the technical field of monitoring, in particular to a video foreign object detection method and system. Background technique [0002] With the large number of automatic teller machines (ATM, Automatic Teller Machine) being put into use in various commercial banks and postal savings, while it is convenient for depositors to deposit and withdraw quickly, it is also accompanied by an increasing number of ATM disputes and ATM financial crimes. How to ensure the safe operation of ATMs, prevent ATMs from being intentionally destroyed, prevent frauds using ATMs, and effectively protect the interests of banks and depositors has become an urgent problem in today's financial field. [0003] In order to protect the safe use of bank ATMs and prevent various crimes against ATMs, it is imperative to install monitoring systems on ATMs. The traditional ATM monitoring system monitors the ATM machine and the surrounding scenes through the camer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07F9/00G06K9/64G06T7/00
Inventor 罗攀峰唐键谢文超刘志梧
Owner GRG BAKING EQUIP CO LTD
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