4.14 AI Technology

4.14.1 Introduction

In an era of intelligent interconnectedness, Xiaomi is committed to developing trustworthy artificial intelligence (AI) technologies to benefit and empower every user. We focus on "human subjectivity" and ensure that AI technologies are always used to enhance and enrich the user experience of consumer electronics products.

During the course of developing and implementing AI technologies, Xiaomi follows the internationally recognized values in the EU's Ethics Guidelines for Trustworthy Artificial Intelligence. We have also implemented the basic principles of trustworthy AI at Xiaomi, covering security and safety, privacy, fairness, and explainability.

Our commitment is to maintain high standards in protecting our users' privacy and personal data throughout the AI life cycle. We strive to achieve best practices, exceeding the requirements of laws and regulations, in our efforts to safeguard user privacy. For instance:

• We guarantee that our AI technology products and services comply with the principle of data minimization and only collect the data necessary to provide relevant services.

• We never use users' data to train AI systems. All training data comes from legitimate sources and has been reviewed for compliance.

• We try our utmost to avoid any risks during the transmission of user data by deploying AI algorithms on the local device.

• We use multiple encryption technologies to ensure the security of the algorithm operating environment as well as the storage of user data.

Xiaomi applies AI technology to the following services in our smartphones:

4.14.2 Voice Call Noise Reduction

Voice call noise reduction aims to enhance voice information between callers by suppressing ambient noise. This ensures clearness and the effectiveness of every call and enhances the user's remote phonic communication experience. Voice call noise reduction AI algorithms are applied to calling scenarios and are available on all Xiaomi smartphones.

Xiaomi does not collect or upload any user data through voice call noise reduction. The noise reduction AI algorithm only operates on the device and outputs results in real-time without preserving any data locally or transmitting it to our servers.

4.14.3 Camera Image Optimization

The camera image optimization AI algorithm is mainly used in the following camera features: Super Moon, AI Camera, Document Mode, Front Portrait Mode with Background Blurring, and Beautify. These features enable users to easily take amazing photos without complicated post-processing.

Xiaomi does not collect or upload any user data through camera image optimization. The algorithm only runs on the device. When the photo is processed by the algorithm, the photo also stays on the device. Xiaomi has built a framework for the image optimization algorithm to minimize the security risks in the algorithm's operating environment.

4.14.4 Face Unlock

Face Unlock is based on biometric authentication technology, which is powered by the facial recognition AI algorithm. The algorithm intelligently detects facial features and performs high-precision matching, allowing users to quickly unlock and access their devices simply by looking at the device screen. This function is optional for users. Because passwords are the basis for users protecting their personal data through encryption, users need to enter a password before turning the Face Unlock function on or off.

The facial recognition AI algorithm is integrated and runs locally on the device. The algorithm only runs on the device. We will not upload any user's facial images or facial feature information to our servers, thereby largely avoiding any security and privacy risks during the data transfer process. The facial recognition AI algorithm irreversibly extracts the facial feature information from the face image, and the original face image will not be saved afterwards. The facial feature information is only used for the face unlock function and is not used for personalization, analysis, or advertising purposes.

Users have full control of the face unlock function. Users can manage the face unlock function. Go to Settings > Passwords and Security > Face Unlock. Password verification is needed before entering the Face Unlock settings.

• The Face Unlock function can be turned on or off at any time.

• Facial feature information can be added, renamed, and deleted.

• When adding facial feature information, the user's identity authorization and express consent are also required.

• After the Face Unlock function is turned off, the facial feature information will not be deleted automatically. Users need to delete it manually.

• When factory settings are restored, facial feature information is deleted automatically.

4.14.5 Fingerprint Unlock

Fingerprint Unlock is based on biometric authentication technology. Once users turn on this feature, they can quickly unlock their device by placing their finger on the fingerprint sensor, without the need to enter a long and complex numeric or graphical password every time. This function is optional for users. To protect user security and privacy, the Fingerprint Unlock service is restricted in the following scenarios:

• When the user’s device has just been turned on.

• If the device has not been unlocked using a password for more than 72 hours.

• If the Fingerprint Unlock function fails to unlock the user’s device five times in a row.

The fingerprint recognition AI algorithm is integrated and runs locally on the device. While in use, the user's fingerprint data will not leave the device, nor will it ever be backed up or uploaded to our servers. When adding a fingerprint template, the device only saves the extracted fingerprint feature information, not the original fingerprint biometric information. The fingerprint recognition algorithm operates on the Fingerprint TA in a TEE environment. Applications that support fingerprint authentication can only initiate fingerprint authentication requests and receive authentication results from the Fingerprint TA in the TEE environment through the external fingerprint framework. These applications cannot directly access fingerprint templates.

Users have full control of the Fingerprint Unlock function. Users can manage the Fingerprint Unlock function. Go to Settings > Passwords and Security > Fingerprint Unlock. Password verification is needed before entering the Fingerprint Unlock settings.

• The Fingerprint Unlock function can be turned on or off at any time.

• Fingerprint template information can be added, renamed, and deleted.

• When factory settings are restored, fingerprint template information is deleted automatically.

4.14.6 Conclusion

Xiaomi is committed to privacy and security in the design phase of its products. The following privacy principles are deeply integrated into Xiaomi AI Technologies:

• Provide transparency and control over data collected through Xiaomi AI.
• Minimize the amount of data collected by AI technologies.
• Only use data for the functions users actually need.
• Ensure to take into account security measures when designing Xiaomi AI.