Read the article, IBM's solution also uses a credentials wallet.
SQRL uses QR codes so the user's wallet can be on a mobile device, and the user could log into a public machine without exposing a repeatable login method. SQRL also allows for a SQRL:// link on the QR code so a wallet program on the local machine, or the phone itself can still authenticate without using the QR code.
Where these differ is that SQRL is made to replace the username and password part of logging in. It also creates a unique identity for each site so the only way to map SQRL accounts between sites would be through information the user gives to the site such as an email address.
IBM's solution appears to have a 3rd party signer like a government create a certificate with identity information which is then used in the authentication process.