Please download the dossier by clicking on the dossier button x
×

PROGRESSIVE VEHICLE SEARCHING METHOD AND DEVICE

  • US 20180060684A1
  • Filed: 11/14/2016
  • Published: 03/01/2018
  • Est. Priority Date: 08/31/2016
  • Status: Active Grant
First Claim
Patent Images

1. A vehicle searching method, characterized in that it comprises:

  • obtaining a first image of a target vehicle;

    extracting a first appearance visual feature of the target vehicle from the first image;

    extracting a second appearance visual feature of the searched vehicle respectively from several second images;

    wherein, the second images are the images stored in a vehicle monitoring image database;

    calculating an appearance similarity distance between the first image and each of the second images according to the first appearance visual feature and each of the second appearance visual features;

    selecting several images from the several second images as several third images;

    determining a first license plate area in the first image and a second license plate area in each of the third images;

    obtaining a first license plate feature corresponding to the first license plate area and a second license plate feature corresponding to each of the second license plate areas by inputting the first license plate area and each of the second license plate areas respectively into a preset Siamese neural network model;

    calculating a license plate feature similarity distance between the first image and each of the third images according to the first license plate feature and each of the second license plate features;

    calculating a visual similarity distance between the first image and each of the third images according to the appearance similarity distance and the license plate feature similarity distance;

    obtaining a first search result of the target vehicle by arranging the several third images in an ascending order of the visual similarity distances.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×