1. Authorization: Before using other people's pictures, you need to obtain the copyright authorization of the pictures. If the picture is published in academic papers or other publications, it needs to be authorized by the original author or copyright owner. If the picture comes from the Internet or other sources, it is necessary to confirm the copyright ownership of the picture and obtain the authorization of the copyright owner.

2. Indicate the source: When the paper quotes other people's pictures, it is necessary to indicate the source of the pictures at the bottom of the pictures, including the author, publication name, publication year, page number and other information. If the picture comes from the Internet or other sources, you need to indicate the website address or other source information of the picture.