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SigmaStar SoC – High-Performance Image Processing

SigmaStar is a MediaTek Group company specializing in camera SoCs. Its SoCs are widely adopted in automotive, security, and smart device markets for their strengths in low-light ISP, multi-camera processing, IPU (AI inference), and automotive security.

■ What is SoC?
A System on a Chip (SoC) integrates essential components for system operation—such as CPU, memory, GPU, and communication functions—into a single semiconductor chip. This enables device miniaturization, lower power consumption, and enhanced performance.
■ Evolution in Process Technology
SigmaStar chip sizes have evolved from 28 nm to 12 nm while improving both performance and power efficiency.

■ Key Features of SigmaStar SoC
✓ Next-Generation Optical Engine
Combines high-performance image processing with cutting-edge video technology.
◎ New ISP1: Equipped with a new ISP engine. Supports Starlight ISP and AI-ISP2 with AI-BNR3 for superior image quality (IQ) performance.
1 ISP (Image Signal Processor): A semiconductor component that enhances image quality by correcting and converting image data captured by devices such as smartphones and digital cameras.
2 AI-ISP: Combines AI with ISP to enable more advanced image processing than conventional ISP, improving resolution and other performance aspects.
3 AI-BNR: A feature within AI-ISP that removes image noise to produce clearer and sharper images.

◎ Encoder4: Supports H.264, H.265, and AV1, offering flexibility for your required formats.
4 Encoder: A device that converts physical motion into digital signals and outputs them.

◎ Ultra-Low Latency Streaming: Achieves near real-time video with latency under 60 ms.

◎ Color Night Vision: With regular ISP, color images can be generated at less than 1.5 Lux without using infrared LEDs (IR LEDs). Enabling AI-ISP suppresses noise even under extremely low-light conditions of 0.1 Lux5, delivering clear color images.
5 Lux: A unit that indicates illuminance, which represents the brightness of light.

✓ AI Core
Built around the 3rd-generation StarEngine IPU6, enabling high-performance AI processing.
6 IPU (Intelligent Processing Unit): A processor specialized for AI and machine learning computations.
* The 3rd generation StarEngine IPU improves upon previous generations in performance and power efficiency, supporting large-scale AI training and inference.
◎ Backward-Compatible Unified IPU SDK7
・Allows migration of customer AI models to the new IPU without redesign or modification.
・AI models and code developed for previous IPUs run seamlessly on the new SDK.
7 Unified IPU SDK: A development environment bundling essential tools such as libraries and drivers for AI development using IPUs.
◎ High Efficiency
・Optimizes hardware utilization for maximum performance.
・Enables acceleration and power savings while preserving AI model accuracy (quantization loss approximately 0.25%).
◎ Transformer8 Optimization
・Vision Transformer (ViT): Optimized for Vision Transformer models that deliver high performance in computer vision tasks.
・Vision Language Model (VLM): Supports processing for vision-language models that handle both visual and textual inputs.
8 Transformer: A foundational model used in NLP, computer vision, and multimodal AI. It is bandwidth-intensive and can be computationally heavy on SoCs without optimization.
◎ Multimodal Support
Supports AI processing that combines multiple data modalities9 tailored to specific applications (e.g., CLIP, Tag2Text, Grounding DINO, and MobileSAM).
9 Modality: The type or form of data (e.g., text, image, video).
* Supported AI Frameworks:
Broad support for major deep learning libraries and frameworks, including Caffe, PyTorch, Keras, Caffe2, TensorFlow, and ONNX.

* Evolution Across StarEngine Generations:
StarEngine versions reflect the progression of supported AI capabilities.

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