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Computer Vision

Extend deep learning workflows with computer vision applications

Apply deep learning to computer vision applications by using Deep Learning Toolbox™ together with the Computer Vision Toolbox™.

Apps

Image Labeler	Label images for computer vision applications
Video Labeler	Label video for computer vision applications

Functions

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Datastores for Training Data

`boxLabelDatastore`	Datastore for bounding box label data (Since R2019b)
`pixelLabelDatastore`	Datastore for pixel label data

ViT (Vision Transformer)

`visionTransformer`	Pretrained vision transformer (ViT) neural network (Since R2023b)
`patchEmbeddingLayer`	Patch embedding layer (Since R2023b)

Semantic Segmentation

`deeplabv3plusLayers`	Create DeepLab v3+ convolutional neural network for semantic image segmentation (Since R2019b)
`segnetLayers`	Create SegNet layers for semantic segmentation
`unetLayers`	Create U-Net layers for semantic segmentation
`unet3dLayers`	Create 3-D U-Net layers for semantic segmentation of volumetric images (Since R2019b)

Object Detection and Instance Segmentation

`rcnnObjectDetector`	Detect objects using R-CNN deep learning detector
`fastRCNNObjectDetector`	Detect objects using Fast R-CNN deep learning detector
`fasterRCNNObjectDetector`	Detect objects using Faster R-CNN deep learning detector
`ssdObjectDetector`	Detect objects using SSD deep learning detector (Since R2020a)
`yolov2ObjectDetector`	Detect objects using YOLO v2 object detector (Since R2019a)
`yolov3ObjectDetector`	Detect objects using YOLO v3 object detector (Since R2021a)
`yolov4ObjectDetector`	Detect objects using YOLO v4 object detector (Since R2022a)
`solov2`	Segment objects using SOLOv2 instance segmentation network (Since R2023b)
`maskrcnn`	Detect objects using Mask R-CNN instance segmentation (Since R2021b)

Automated Visual Inspection

`fcddAnomalyDetector`	Detect anomalies using fully convolutional data description (FCDD) network for anomaly detection (Since R2022b)
`fastFlowAnomalyDetector`	Detect anomalies using FastFlow network (Since R2023a)
`patchCoreAnomalyDetector`	Detect anomalies using PatchCore network (Since R2023a)
`yoloxObjectDetector`	Detect objects using YOLOX object detector (Since R2023b)

Text Detection and Recognition

detectTextCRAFT Detect texts in images by using CRAFT deep learning model (Since R2022a)

Topics

Image Classification

Train Vision Transformer Network for Image Classification
This example shows how to fine-tune a pretrained vision transformer (ViT) neural network neural network to perform classification on a new collection of images.

Object Detection and Instance Segmentation

Getting Started with Object Detection Using Deep Learning (Computer Vision Toolbox)
Perform object detection and instance segmentation using deep learning neural networks.
Augment Bounding Boxes for Object Detection
This example shows how to perform common kinds of image and bounding box augmentation as part of object detection workflows.
Get Started with SOLOv2 for Instance Segmentation (Computer Vision Toolbox)
Perform multiclass instance segmentation using SOLOv2 and deep learning.
Train Object Detector Using R-CNN Deep Learning
This example shows how to train an object detector using deep learning and R-CNN (Regions with Convolutional Neural Networks).
Import Pretrained ONNX YOLO v2 Object Detector
This example shows how to import a pretrained ONNX™ (Open Neural Network Exchange) you only look once (YOLO) v2 [1] object detection network and use it to detect objects.
Export YOLO v2 Object Detector to ONNX
This example shows how to export a YOLO v2 object detection network to ONNX™ (Open Neural Network Exchange) model format.
Deploy Object Detection Model as Microservice (MATLAB Compiler SDK)
Use a microservice to detect objects in images.

Automated Visual Inspection

Getting Started with Anomaly Detection Using Deep Learning (Computer Vision Toolbox)
Anomaly detection using deep learning is an increasingly popular approach to automating visual inspection tasks.
Detect Image Anomalies Using Explainable FCDD Network
Use an anomaly detector to distinguish between normal pills and pills with anomalous chips or contamination.
Classify Defects on Wafer Maps Using Deep Learning
This example shows how to classify eight types of manufacturing defects on wafer maps using a simple convolutional neural network (CNN).
Detect Image Anomalies Using Pretrained ResNet-18 Feature Embeddings
Train a similarity-based anomaly detector using one-class learning of feature embeddings extracted from a pretrained ResNet-18 convolutional neural network.
Localize Industrial Defects Using PatchCore Anomaly Detector
Perform localization of anomalous defects in printed circuit boards (PCBs) using anomaly heat maps generated with the PatchCore anomaly detector.

Semantic Segmentation

Getting Started with Semantic Segmentation Using Deep Learning (Computer Vision Toolbox)
Segment objects by class using deep learning.
Train Simple Semantic Segmentation Network in Deep Network Designer
This example shows how to create and train a simple semantic segmentation network using Deep Network Designer.
Augment Pixel Labels for Semantic Segmentation
This example shows how to perform common kinds of image and pixel label augmentation as part of semantic segmentation workflows.
Semantic Segmentation Using Dilated Convolutions
Train a semantic segmentation network using dilated convolutions.
Semantic Segmentation of Multispectral Images Using Deep Learning
This example shows how to perform semantic segmentation of a multispectral image with seven channels using U-Net.
3-D Brain Tumor Segmentation Using Deep Learning
This example shows how to perform semantic segmentation of brain tumors from 3-D medical images.
Define Custom Pixel Classification Layer with Tversky Loss
This example shows how to define and create a custom pixel classification layer that uses Tversky loss.
Explore Semantic Segmentation Network Using Grad-CAM
This example shows how to explore the predictions of a pretrained semantic segmentation network using Grad-CAM.
Generate Adversarial Examples for Semantic Segmentation (Computer Vision Toolbox)
Generate adversarial examples for a semantic segmentation network using the basic iterative method (BIM).
Prune and Quantize Semantic Segmentation Network
Reduce the memory footprint of a semantic segmentation network and speed-up inference by compressing the network using pruning and quantization.

Video Classification

Activity Recognition from Video and Optical Flow Data Using Deep Learning
This example first shows how to perform activity recognition using a pretrained Inflated 3-D (I3D) two-stream convolutional neural network based video classifier and then shows how to use transfer learning to train such a video classifier using RGB and optical flow data from videos [1].
Gesture Recognition using Videos and Deep Learning
Perform gesture recognition using a pretrained SlowFast video classifier.

Featured Examples

Detect Defects on Printed Circuit Boards Using YOLOX Network

Detect, localize, and classify defects in printed circuit boards (PCBs) using a you only look once version X (YOLOX) deep learning network.

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Object Detection Using YOLO v2 Deep Learning

Train a you only look once (YOLO) v2 object detector.

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Perform Instance Segmentation Using SOLOv2

Segment object instances of randomly rotated machine parts in a bin using a deep learning SOLOv2 network.

Point Cloud Classification Using PointNet Deep Learning

Train a PointNet network for point cloud classification.

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Object Detection Using SSD Deep Learning

Train a Single Shot Detector (SSD).

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Object Detection Using YOLO v3 Deep Learning

Train a YOLO v3 object detector.

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Object Detection Using YOLO v4 Deep Learning

Detect objects in images using you only look once version 4 (YOLO v4) deep learning network. In this example, you will

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Perform Instance Segmentation Using Mask R-CNN

Segment individual instances of people and cars using a multiclass mask region-based convolutional neural network (R-CNN).

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Semantic Segmentation Using Deep Learning

Segment an image using a semantic segmentation network.

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Generate Image from Segmentation Map Using Deep Learning

Generate a synthetic image of a scene from a semantic segmentation map.

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Estimate Body Pose Using Deep Learning

Estimate the body pose of one or more people using the OpenPose algorithm.

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Activity Recognition from Video and Optical Flow Data Using Deep Learning

First shows how to perform activity recognition using a pretrained Inflated 3-D (I3D) two-stream convolutional neural network based video classifier and then shows how to use transfer learning to train such a video classifier using RGB and optical flow data from videos [1].

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Gesture Recognition using Videos and Deep Learning

Perform gesture recognition using a pretrained SlowFast video classifier.

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Reidentify People Throughout a Video Sequence Using ReID Network

Track people throughout a video sequence using re-identification with a residual network.

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