The metadata management feature of Intelligent Media Management (IMM) allows you to efficiently collect, analyze, and query metadata. This topic describes the usage scenarios of the metadata management feature and how to use the feature.
Overview
After data access authorization, IMM scans data stored in cloud services such Object Storage Service (OSS) and Photo and Drive Service, collects metadata, and indexes metadata into the metadata storage engine to provide powerful data query, statistics, and management capabilities.
IMM allows you to efficiently manage the following types of metadata:
Basic file information such as the file size, format, and creation time.
Information about the content of a document and information about files in a package.
Metadata information such as labels, faces, and text generated for media files such as images, videos, and audio based on the AI-powered engine.
Scenarios
File management systems
IMM allows you to efficiently query files based on keywords and manage files. For example, you can query documents that contain a specific string or videos that contain a specific face, or query the size of a directory. The metadata management feature facilitates data management and analysis, which helps reduce the usage costs of OSS or Photo and Drive service and reveal data value. The metadata management feature of IMM is suitable for storage services and file management systems for individuals and enterprises.
Smart photo albums
The artificial intelligence capabilities of IMM can be used to create smart photo albums that enable photo and video search based on conditions such as the time and location of photo or video shooting, identifiable faces, and expressions.
Access control, attendance, and examination systems
You can create access control, attendance tracking, and examination systems based on the facial recognition capabilities of IMM.
Video surveillance systems
You can utilize the face detection and human body detection capabilities of IMM to create video surveillance systems.
Usage notes
You can call API operations related to metadata management only in a supported region. For information about the regions that support the metadata management feature, see Regions and supported features.
If you have questions, join the DingTalk chat group (ID: 31690030817) and share your questions.
Calls to API operations related to metadata management generate fees. For more information about the billing rules, see Billing overview.
Procedure
Step 1: Create a dataset
A dataset is a container for metadata. In most cases, the metadata of correlated media files is stored in the same dataset to facilitate data queries. For example, you can create a dataset for each photo album in a photo album application, and call the BatchIndexFileMeta or IndexFileMeta operation to index photo metadata 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 that are stored in a service such as OSS or Photo and Drive Service. When you create a metadata index, IMM collects metadata and stores the obtained metadata in the metadata storage engine. This enables robust data querying, statistical analysis, and effective management capabilities. For more information, see Create a metadata index.
Step 3: Query file information
After the metadata index is created, you can query file information. For more information, see Query file information.