Intelligent Media Management (IMM) provides a metadata management feature to help you collect, analyze, and query file metadata. This topic describes the scenarios and procedure for metadata management.
Feature overview
After you grant authorization, the metadata management feature can analyze files stored in products such as Object Storage Service (OSS) and Photo and Drive Service (PDS). It collects file metadata and indexes it into a metastore. This provides powerful file query, statistical, and management capabilities.
The metadata management feature supports the following types of file metadata:
Basic file information, such as file size, file format, and creation time.
The full text of documents and information about all files within a compressed package.
Rich metadata, such as tags, people, and text, obtained by analyzing media files such as images, videos, and audio using the artificial intelligence (AI) engine of IMM.
Scenarios
Enterprise file management systems
You can query files by keyword. For example, you can search for files that contain a specific keyword, find videos that feature a specific person, or calculate the total size of files in a folder. This simplifies data management and analysis, which lets you use OSS or PDS more efficiently, reduce costs, and extract value from your data. This feature is suitable for custom storage services and file management systems for both enterprises and individuals.
Smart photo albums
You can use the AI capabilities of IMM to build smart photo albums. This lets you search for photos and videos based on information such as shooting time, location, people, and expressions. The feature supports various media types, including images and videos.
Access control, attendance, and examination systems
You can use the facial recognition capabilities of IMM to build access control, attendance, and examination systems.
Video surveillance systems
You can use the face and body detection capabilities of IMM to build video surveillance systems.
Notes
The metadata management feature and its related API operations are available only in specific regions. For more information, see Supported features by region.
If you encounter problems, you can join our DingTalk group to provide feedback. For the DingTalk group ID, see Contact us.
Calling API operations related to metadata management incurs charges. For more information about billing, see Billing overview.
Procedure
Step 1: Create a dataset
A dataset is a collection of metadata that acts as a container. You can store related media files in the same dataset to make them easier to query. For example, in a photo album scenario, you can create a dataset for each album. Then, you can call the BatchIndexFileMeta or IndexFileMeta operation to create metadata indexes for the photos and use the face clustering feature to group photos that contain similar faces. For more information, see Create a dataset.
Step 2: Create a metadata index
After you create a dataset, you can create a metadata index for files stored in services such as OSS or PDS. When you create a metadata index, IMM collects file metadata and indexes it into the metastore. This provides powerful file query, statistical, and management capabilities. For more information, see Create a metadata index.
Step 3: Query file information
After the metadata index is created, you can query the file information. For more information, see Query file information.