Education

Getting Started with LabelMe - Computer Vision Annotation

In this post, we will walk through how to jumpstart your image annotation process using LabelMe, a free, open source labeling tool. Labeling images from the public aerial maritime dataset

What the heck is an annotation group?

If you're wondering this, you're not alone. The annotation group is the category that encompasses all of the classes in your dataset. It answers the question "What kind of things

The Ultimate Guide to Object Detection (September 2020)

Object detection is a computer vision technology that localizes and identifies objects in an image. Due to object detection's versatility in application, object detection has emerged in the last few

Elisha Odemakinde Hosts Roboflow for a Fireside Chat

Recently, Roboflow machine learning engineer Jacob Solawetz sat down with Elisha Odemakinde, an ML researcher and Community Manager at Data Science Nigeria, for a Fireside chat. During the conversation, Jacob

The Train, Validation, Test Split and Why You Need It

At Roboflow, we often get asked, what is the train, validation, test split and why do I need it? The motivation is quite simple: you should separate you data into train, validation, and test splits to prevent your model from overfitting and to accurately evaluate your model. T

How to Train a Custom Resnet34 Model for Image Classification in fastai and PyTorch

Can a computer tell the difference between a dandelion and a daisy? In this post we put these philosophical musings aside, and dive into the the code necessary to find

Fast.ai v2 Released - What's New?

Fastai, the popular deep learning framework and MOOC releases fastai v2 with new improvements to the fastai library, a new online machine learning course, and new helper repositories. fastai's layered

Tackling the Small Object Problem in Object Detection

Detecting small objects is one of the most challenging and important problems in computer vision. In this post, we will discuss some of the strategies we have developed at Roboflow

How to Train a Custom TensorFlow Lite Object Detection Model

In this post, we walk through the steps to train and export a custom TensorFlow Lite object detection model with your own dataset to detect your own custom objects. If

PP-YOLO Surpasses YOLOv4 - State of the Art Object Detection Techniques

Baidu publishes PP-YOLO and pushes the state of the art in object detection research by building on top of YOLOv3, the PaddlePaddle deep learning framework, and cutting edge computer vision research.

Ontology Management for Computer Vision

As their projects mature and dataset sizes grow, most teams wrestle with label and class management. Slicing and dicing data is more of an art than a science and you

How to Train EfficientNet - Custom Image Classification

In this tutorial, we will train state of the art EfficientNet convolutional neural network, to classify images, using a custom dataset and custom classifications. To run this tutorial on your

What are Anchor Boxes in Object Detection?

Object detection models utilize anchor boxes to make bounding box predictions. In this post, we dive into the concept of anchor boxes and why they are so pivotal for modeling

Breaking Down YOLOv4

A thorough explanation of how YOLOv4 worksThe realtime object detection space remains hot and moves ever forward with the publication of YOLO v4. Relative to inference speed, YOLOv4 outperforms other

Getting Started with Data Augmentation in Computer Vision

Data augmentation in computer vision is not new, but recently data augmentation has emerged on the forefront of state of the art modeling. YOLOv4, a new state of the art

What is Mean Average Precision (mAP) in Object Detection?

What is mean average precision? How do we calculate mAP?

Breaking Down the Technology Behind Self-Driving Cars

In May 2016, Joshua Brown died in the Tesla's first autopilot crash. The crash was attributed to the self-driving cars system not recognizing the difference between a truck and the

YOLOv3 Versus EfficientDet for State-of-the-Art Object Detection

YOLOv3 is known to be an incredibly performant, state-of-the-art model architecture: fast, accurate, and reliable. So how does the "new kid on the block," EfficientDet, compare? Without spoilers, we were