*3.2. Identification*

To identify research papers related to touchscreen-based image accessibility for BLV, we checked if at least one of the following search keywords from each category—target user (*User*), target object (*Object*), supported feature (*Feature*), supported device (*Device*)—is included either in the title, the abstract or authors' keywords:


As a result, a total of 79 papers were identified from three databases: Scopus (*N* = 50), ACM digital library (*N* = 25), and IEEE Xplore (*N* = 4). We then removed 26 duplicates.
