RedBrick AI pipelines offers you a way to automate and structure your labeling projects. Often, labeling projects are multi-step processes that involve multiple stakeholders and automated resources. With the RedBrick AI pipelines, you can define workflows at the start of a project and seamlessly scale your labeling projects while maintaining deep insights into the performance and progress of your projects. Important insights are tracked by the RedBrick pipelines, and will allow you to trace issues throughout the lifecycle of a project and continuously product high quality training data.

How do pipelines work?

You can think of the RedBrick pipelines as a digital assembly line comprised of several individual bricks. Each brick is responsible for a single action (this can be an automated, or manual action) and processes data and/or labels. Stages are tied together with some routing logic to build a pipeline. The image below shows the most basic pipeline that allows a user/or team to manually label data.

Simple, linear pipeline

Digging a little deeper into the simple example above, we can see everything starts with the dataset-input brick - raw data from the warehouse is brought into the pipeline in this step. All of these images are then routed to the manual-labeling step, where a team can manually label their dataset. This labeled data is then routed to the labelset-output which stores the assets back in the warehouse.

Let's take a look at a slightly more complicated example.

The simple review pipeline above demonstrates the functionality of pipelines a little better. The first two steps of the pipeline are pretty straightforward, however, after the simple-review step, data is conditionally routed downstream to be stored, or corrected then stored. Throughout the pipelines, data will automatically get routed, meta-data will be stored, and tasks will be assigned throughout the team.

These are just two simple examples of what workflows you can build with RedBrick AI pipelines.

Brick Types

As discussed above, bricks have single responsibilities and process data and labels. The RedBrick AI platform offers five different types of bricks:

  • Input: Input bricks act as the 'source' of a pipeline, and bring in data and labels into the pipeline. You can have multiple inputs to a project e.g. from multiple datasets.

  • Output: Output bricks are the 'sink' of a pipeline and are responsible for properly storing labels. You can have multiple outputs to a project e.g. different output containers for different types of labels.

  • Labeling: Labeling bricks are mainly responsible for creating/editing labels. These can be purely manual, or automated.

  • Quality: Quality bricks offer you a way to structure your quality assurance, get insight into the quality of labels, and enforce quality standards.

  • Flow: Flow bricks are used to route data between bricks.

Routing Types

The second important component of pipelines are the routing between bricks. Each brick has a particular kind of routing that defines how it can connect with other bricks. Listed below are the different kinds of routing types:

  • Next: Next routing simple routes all the data to a single brick downstream.

  • Boolean: Boolean routing has two paths, a failed path and a passed path. Depending on what happens in a particular brick, boolean routing will conditionally route data to two downstream bricks.

  • Multi: Multi routing sends a percentage of data to multiple bricks downstream.

  • Feedback: Feedback routing sends data to an upstream brick.

Bricks Overview

Brick Name

Brick Type


Routing Type



dataset-input acts as a 'source' of data for your pipeline. Get data from your dataset into a pipeline using the dataset-input brick.




labelset-input acts as a 'source' of data and labels for your pipeline. If you have data and labels in a labelset, you can bring them into your pipeline using the labelset-input.




labelset-output stores your data and labels in the data warehouse. Use the labelset-output brick to store your generated annotations in a specified labelset.




manual-labeling allows you to create and/or edit labels on your image and video datasets.




remote-labeling allows you to use your own model running your own system to label data using the RedBrick Python SDK.



Quality Assurance

expert-review allows you to review data and or labels and conditionally route the data using a pass/fail option. You can optionally edit your labels within this brick.




feedback allows you to send data to a brick upstream in your pipeline.




task-random-filter allows you to route your data to several downstream stages based on some percentage i.e. send 50% of data to one downstream stage, and 50% to another.




brightics-aia-autolabel is a joint offering with Samsung SDS Brightics AI Accelerator. This brick allows users to use Samsung SDS Active Learning algorithm AutoLabel.


Input/Output Types

Each brick has two attributes associated with it - input type and output type. These attributes define the type of task entering and exiting the brick. The list below covers all the different types:

  • NONE: None type means the brick doesn't output anything or doesn't take anything as input. It's equivalent to saying either no brick can connect to it upstream or downstream.

  • image_items: Raw images.

  • video_items: Raw videos.

  • image_<label_type_code>: Image labels, where <label_type_code> is the code of the label type.

  • video_<label_type_code>: Video labels, where <label_type_code> is the code of the label type.