Rotated Object Detection (AI)

## Rotated Object Detection [AI]

Classify and locate targets to be identified by running a trained model.

## Module Principle
By inferring the trained model, the coordinates, class ID, confidence, etc., related to the identified target are obtained to construct the module's relevant inputs, outputs, and image display.

### Algorithm Workflow

Data Acquisition → Annotation → Preprocessing / Augmentation → Model Selection → Training → Evaluation & Tuning → NMS Post-processing → Inference Deployment

### Algorithm Formula
Anchor-free Decoding: Directly predict box coordinates through sigmoid(tx/ty) and exp(tw/th) without predefined anchors;
Total Loss Composition: L total = λ cls * L cls + λ reg * L reg + λ obj * L obj, where the regression loss uses CIoU to improve box localization accuracy;
SimOTA Assignment: Dynamically select positive samples through the cost matrix C i,j, replacing traditional anchor matching to improve sample assignment rationality.

## Usage Scenarios
Appearance Quality Inspection: Quality inspection scenarios such as component defects, assembly completeness, packaging printing, specification consistency, and parts counting.
Production Safety Monitoring: Safety supervision such as personnel protective equipment compliance, hazardous area intrusion, and rule violation operations.
Production Process Automation: Robotic arm visual grasping, process identification, and automatic product diversion and sorting.

## Usage Method

### Pre and Post Modules
Camera color image, video reading, label filtering, image display, etc.

### Usage Example

![](/media/202603/2026-03-02_144557_0806760.4155070425362104.png)

## Parameter Configuration Description
Basic Parameters

![](/media/202603/2026-03-02_144831_4743230.1988555981764527.png)

Advanced Parameters

![](/media/202603/2026-03-02_144903_5317480.21389106790012413.png)
## Output Description

![](/media/202603/2026-03-02_144951_9612120.4881141689884345.png)
## Function Property Description

![](/media/202603/2026-03-02_145019_1588430.31259875361324774.png)

![](/media/202603/2026-03-02_145219_2244060.9713320662359255.png)

![](/media/202603/2026-03-02_145250_9800110.8041241223024451.png)

Click here to jump to the corresponding Chinese manual page: [Rotated Object Detection (AI)](/doc/162)