Patent ID: 11948168
Assignee: SHANGHAI HODE INFORMATION TECHNOLOGY CO., LTD.
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of monitoring changes of web advertisements, comprising:
loading a monitored page, wherein the monitored page comprises at least one advertisement object;
storing the monitored page in a form of pictures;
obtaining a current page sample picture of the monitored page;
comparing the current page sample picture with an initial pre-stored picture of the monitored page; and
determining whether the at least one advertisement object in the monitored page is changed, wherein the determining whether the at least one advertisement object in the monitored page is changed further comprises determining a difference degree between the current page sample picture and the initial pre-stored picture of the monitored page, and wherein the determining a difference degree between the current page sample picture and the initial prestored picture of the monitored page further comprises:
obtaining an advertisement object in the current page sample picture and an advertisement object in the initially pre-stored picture,
determining a difference degree between the advertisement object in the current page sample picture and the advertisement object in the initial pre-stored picture as the difference degree between the current page sample picture and the initial pre-stored picture of the monitored page, wherein the determining a difference degree between the advertisement object in the current page sample picture and the advertisement object in the initial pre-stored picture further comprises determining a percentage of pixel differences between the advertisement object in the current page sample picture and the advertisement object in the initial pre-stored picture as the difference degree when no advertisement object is added or deleted,
wherein the determining a percentage of pixel differences between the advertisement object in the current page sample picture and the advertisement object in the initial pre-stored picture as the difference degree further comprises:
in response to detecting that both the current page sample picture and the initial pre-stored picture comprise more than two advertisement objects, determining a largest percentage of pixel differences among the more than two advertisement objects as the difference degree between the advertisement object in the current page sample picture and the advertisement object in the initial pre-stored picture.