Position information determination method and device, storage medium and electronic device

Abstract

The embodiment of the invention provides a position information determination method and device, a storage medium and an electronic device. The method comprises the following steps: extracting M feature points from an N-th frame of image and detecting first position information of an abnormal object; matching the M feature points with P feature points obtained in the K-th frame of image to obtain matched feature point pairs; and determining a conversion matrix between the Nth frame of image and the K-th frame of image by using the matched feature point pairs so as to obtain second position information of an abnormal object detected in the N-th frame of image in the K-th frame of image. According to the method and the device, the problem of inaccurate detection of the abnormal object is solved, and the effect of accurately detecting the abnormal object is achieved.

Description

technical field [0001] Embodiments of the present invention relate to the image field, and in particular, relate to a method and device for determining location information, a storage medium, and an electronic device. Background technique [0002] In public security places such as subways and high-speed rails, the intelligent contraband detection system adapted to X-ray security inspection machines has gradually become popular, and it is mainly divided into two modules: intelligent detection and intelligent display. The intelligent detection module is responsible for detecting prohibited items in the screen and reporting its category and current location. The intelligent display module is responsible for calculating the movement trajectory of the contraband, and drawing the detection frame of the contraband into the security inspection screen in real time. The display module needs to avoid phenomena such as flickering, jittering, and offset of the item frame. Such phenomena...

AI Technical Summary

Problems solved by technology

The display module needs to avoid phenomena such as flashing, jittering, and offset of the item frame, which will lead to bad experiences such as visual interference and visual fatigue for security inspectors

However, the movement and jitter of the screen and the zoom operation of the security inspector are all difficulties of the display module.

[0003] Aiming at the problem of continuous positioning of abnormal objects in subsequent frames existing in the prior art, no effective solution has been proposed in the related art

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