learnopencv1

[learnopencv1]

EXIF data (Exchangeable Image File Format) contains information on image and audio files. It is required by image viewers or audio players to sort the files, display thumbnails, load camera information, and add other functionalities. However, EXIF is not limited to basic image attributes. Using EXIF tags, you can find the name of the person who captured the image, the location, whether the image has been edited, and much more.

In this article, we will break down EXIF metadata and show how to access and modify it. We will also walk through an application that visualizes potholes of a city in Google Maps using EXIF tags.

[learnopencv1]

YOLOv7 is a single-stage real-time object detector. It was introduced to the YOLO family in July’22. According to the YOLOv7 paper, it is the fastest and most accurate real-time object detector to date. YOLOv7 established a significant benchmark by taking its performance up a notch.

[learnopencv1]

Since its inception, the YOLO family of object detection models has come a long way. YOLOv7 is the most recent addition to this famous anchor-based single-shot family of object detectors. It comes with a bunch of improvements which include state-of-the-art accuracy and speed.  In this article, we will be fine tuning the YOLOv7 object detection model on a real-world pothole detection dataset.

[learnopencv1]

Face Detection is a computer vision technique in which a computer program can detect the presence of human faces and also find their location in an image or a video stream. Isn’t it mind-boggling how the mobile camera automatically detects your face every time you try to take a selfie? You must’ve also noted that it captures other people’s faces in the frame. Well, all this wouldn’t have been possible without Face Detection algorithms. With every passing year, Facial Detection algorithms are evolving to be faster and more robust.

In this post, you will get an overview of Face Detection itself. We will walk through various state-of-the-art Face Detectors and how they evolved over time.

[learnopencv1]

Arguably, the most crucial task of Deep Learning-based Multiple Object Tracking (MOT) is not to identify an object but to re-identify it after occlusion. There are a plethora of trackers available to use, but not all of them have a good re-identification pipeline. In this blog post, we will focus on one such tracker, FairMOT, that revolutionized the joint optimization of detection and re-identification tasks in tracking.

[learnopencv1]

Continuous driving can be tedious and exhausting. A motorist may get droopy and perhaps nod off due to inactivity. In this article, we will create a drowsy driver detection system to address such an issue. For this, we will use Mediapipe’s Face Mesh solution in python and the Eye Aspect ratio formula. Our goal is to create a robust and easy-to-use application that detects and alerts users if their eyes are closed for a long time.

In this post, we will:

Learn how to detect eye landmarks using the Mediapipe Face Mesh solution pipeline in python.

Introduce and demonstrate the Eye Aspect Ratio (EAR) technique. 

Create a Driver Drowsiness Detection web application using streamlit.

Use streamlit-webrtc to help transmit real-time video/audio streams over the network. 

Deploy it on a cloud service.

[learnopencv1]

Driver drowsiness detection system alerts the driver if they feel drowsy or fall asleep behind the wheel. Continuous driving can be tedious and exhausting. A motorist may get droopy and perhaps nod off due to inactivity. We will use Mediapipe’s Face Mesh solution in python and the Eye Aspect ratio formula. Our goal is to create a robust and easy-to-use application that detects and alerts users if their eyes are closed for a long time. We will discuss the following: ✅Learn how to detect eye landmarks using the Mediapipe Face Mesh solution pipeline in python. ✅Introduce and demonstrate the Eye Aspect Ratio (EAR) technique. ✅Create a Driver Drowsiness Detection web application using streamlit. ✅Use streamlit-webrtc to help transmit real-time video/audio streams over the network. ✅Deploy it on a cloud service. ❓FAQ How does driver drowsiness detection work? Which algorithm is used for driver drowsiness detection? How can we detect when a driver is falling asleep?