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HDI-Former: A New Approach to Object Detection

HDI-Former combines traditional and event cameras for better object detection.

Dianze Li, Jianing Li, Xu Liu, Zhaokun Zhou, Xiaopeng Fan, Yonghong Tian

― 5 min read


HDI-Former Boosts Object HDI-Former Boosts Object Detection detection and energy use. A new camera tech improves real-time
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Have you ever tried to catch a fleeting moment on camera, only to find that you missed it because your camera just isn’t fast enough? Well, scientists have been working on a new method called HDI-Former that combines two types of cameras to help with detecting objects in tricky situations. This new approach takes the best features of both a traditional camera and a super speedy event camera to improve how we see things in motion.

What is an Event Camera?

Imagine a camera that works like a super-sensitive eye. An event camera doesn’t just snap a picture every few seconds; instead, it notices changes in light instantly. If something moves or the lighting changes, it captures that moment, giving us a clearer view of fast action without blurring. This is great when things get busy, like in a traffic scene!

Why Combine Cameras?

Traditionally, cameras either take crisp, detailed snapshots or they work fast but miss important details in still scenes. By combining a traditional camera with an event camera, HDI-Former aims to create a better tool for Object Detection. The idea is to use the steady clarity of traditional frames and the quick reactions of event data to catch every detail, no matter how fast or slow things are moving.

The Problem with Traditional Methods

Most current detection systems work by looking at each camera type separately. They have a separate way to handle videos (frames) and another for the Event Cameras. This means they miss out on sharing information-like how a musician plays better when they jam together rather than sticking to their own solos. By ignoring the connection between frames and events, these systems can miss crucial details that could help them detect objects better.

Enter HDI-Former

The HDI-Former is a clever solution to this problem. It cleverly mixes the two types of cameras by using a special setup. It has a part that processes the detailed images and a second part that pays attention to the fast-moving events, all while conserving energy. It’s like having your cake and eating it too-without feeling guilty about the calories!

How Does It Work?

Smart Attention Mechanism

To start, HDI-Former uses something called a semantic-enhanced self-attention mechanism. This fancy term means that it can focus better on parts of images that matter when identifying objects. By improving the way it looks at different sections of a picture, it can make more sense of the information it receives, leading to better object detection.

Spiking Swin Transformer: A New Kind of Transformer

The next cool thing about HDI-Former is its Spiking Swin Transformer. This part is designed to work with the event data, paying attention to changes over time without using up a lot of energy. It’s kind of like getting the best battery for your remote-you get to watch your favorite shows without constantly changing the batteries!

Dynamic Interaction

What makes HDI-Former exciting is its ability to let the two parts (the ANN for frames and SNN for events) talk to each other. This interaction is like a wonderful conversation where both sides learn and grow from each other. It helps to combine the strengths of both visual streams, leading to better overall performance in detecting objects.

Results: It Outperforms the Competition

When put to the test, HDI-Former showed some impressive results. It beat out not only traditional systems but also many advanced methods that use the two types of cameras independently. It’s like showing up to a party and dancing better than everyone else while sipping on an energy drink-all eyes on you!

Energy Efficiency

One of the highlights is that while performing better, HDI-Former also uses less energy. This means it’s kind to the environment, letting scientists think about the planet as they work on brilliant new technologies. In simple terms, HDI-Former gives you better performance without the guilt of using more electricity – it’s a win-win!

Object Detection: What’s the Big Deal?

Object detection basically means recognizing and identifying things in images or videos. It’s not just about looking at pretty pictures; it has real-world applications! For example, it can help self-driving cars recognize pedestrians, cyclists, or other vehicles on the road. With HDI-Former, the goal is to improve reactions and make things safer.

What's Next?

Looking ahead, HDI-Former offers plenty of exciting possibilities. With the old systems that just looked at frames and events separately, there was no collaboration. But now, with this new approach, it opens doors to better systems that can see and react faster in real-time. Imagine a world where both cars and cameras work seamlessly, predicting and responding to human movements-a safe symphony of technology!

Conclusion

In the wild world of object detection, the HDI-Former stands out as a clever solution that combines the best of both traditional and event cameras. It makes object detection smarter, faster, and more energy-efficient while paving the way for a future where technology can see, learn, and react like never before. And who knows? Maybe one day, our devices will recognize us as easily as we recognize our favorite snack in a store window!

So, next time you’re chasing down that elusive moment, whether it’s a dog chasing its tail or a toddler with a cookie in hand, remember that HDI-Former is here to make sure nothing gets missed. It's like having a superhero for your camera-always ready to snap the shot and save the day!

Original Source

Title: HDI-Former: Hybrid Dynamic Interaction ANN-SNN Transformer for Object Detection Using Frames and Events

Abstract: Combining the complementary benefits of frames and events has been widely used for object detection in challenging scenarios. However, most object detection methods use two independent Artificial Neural Network (ANN) branches, limiting cross-modality information interaction across the two visual streams and encountering challenges in extracting temporal cues from event streams with low power consumption. To address these challenges, we propose HDI-Former, a Hybrid Dynamic Interaction ANN-SNN Transformer, marking the first trial to design a directly trained hybrid ANN-SNN architecture for high-accuracy and energy-efficient object detection using frames and events. Technically, we first present a novel semantic-enhanced self-attention mechanism that strengthens the correlation between image encoding tokens within the ANN Transformer branch for better performance. Then, we design a Spiking Swin Transformer branch to model temporal cues from event streams with low power consumption. Finally, we propose a bio-inspired dynamic interaction mechanism between ANN and SNN sub-networks for cross-modality information interaction. The results demonstrate that our HDI-Former outperforms eleven state-of-the-art methods and our four baselines by a large margin. Our SNN branch also shows comparable performance to the ANN with the same architecture while consuming 10.57$\times$ less energy on the DSEC-Detection dataset. Our open-source code is available in the supplementary material.

Authors: Dianze Li, Jianing Li, Xu Liu, Zhaokun Zhou, Xiaopeng Fan, Yonghong Tian

Last Update: 2024-11-27 00:00:00

Language: English

Source URL: https://arxiv.org/abs/2411.18658

Source PDF: https://arxiv.org/pdf/2411.18658

Licence: https://creativecommons.org/publicdomain/zero/1.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to arxiv for use of its open access interoperability.

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