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Event-Based Vision Approaches Commercialization, Says IDTechEx

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IDTechEx

27 Jul, 2021, 10:21 GMT

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BOSTON, July 27, 2021 /PRNewswire/ -- The increasing adoption of computational image analysis is creating opportunities for many new types of image sensors. These have a diverse range of capabilities, ranging from dramatically lowering the cost of short-wave infrared (SWIR) imaging to large-area thin-film flexible photodetectors. IDTechEx's new report, titled "Emerging Image Sensor Technologies 2021-2031: Applications and Markets", comprehensively explores the market for emerging image sensor technologies.

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Schematic outlining the difference between conventional and event-based sensing

One of the most innovative and commercially promising technologies is event-based vision, which is a bio-inspired method of acquiring visual data that promises multiple advantages including reduced data transfer/processing and greater dynamic range. Indeed, such are these merits that IDTechEx forecast the market for the event-based vision sensor chips alone rising from its primarily pre-revenue status today to $20 million per year over the next 10 years. Furthermore, much of the value is likely to be captured by the software facilitated by event-based vision hardware, leading to a much greater total market.

What is event-based vision?

Event-based vision, also known as dynamic vision sensing (DVS), is a method of scene acquisition that mirrors how the human retina/brain acquires information, by recording changes as they occur rather than the entire frame at specified intervals. The approach is entirely targeted at machine vision applications and is not aiming to replace cameras/conventional image sensors.

In a conventional video, an entire image is recorded at a pre-assigned interval, known as the frame rate. For machine vision applications this means that lots of unnecessary data is acquired, whereas the most dynamic part of the image is often under-sampled. Event-based vision sensors resolve this issue by detecting relative intensity changes rather than capturing frames. The pixels report asynchronously, delivering a timestamp whenever the illumination intensity passes a certain threshold. Figure 1 illustrates the difference between conventional frame-based sensing and event-based sensing for a single pixel.

Motivation

Event-based vision offers multiple significant advantages over conventional frame-based imaging. Arguably the most significant is that by only detecting changes, subsequent data processing can be much simpler. This is because irrelevant static areas of the image have been ignored, meaning that far less data needs to be transported and processed.

Furthermore, event-based vision offers a higher dynamic range, since individual pixels report a percentage change in intensity rather than making an absolute measurement of light intensity. As such, there is far less risk of saturation. The final benefit is greater temporal resolution, with time-stamped signals from each pixel.

Target applications

Event-based vision is highly relevant to recording rapidly changing situations that require immediate data processing (since the volume of data produced is much less). Applications that require high temporal resolution or high dynamic range are especially relevant.

IDTechEx, therefore, perceives the most promising applications as collision avoidance and navigation for autonomous vehicles/ADAS and unmanned ariel vehicles (drones). These markets have huge potential but will require substantial software development and data collection to fully interpret the event-based vision data. As such, IDTechEx believes that smaller markets with much more predictable input data, such as iris-tracking for AR/VR goggles and laser beam profiling, will see the earliest adoption of event-based vision.

A comprehensive overview

IDTechEx's new report "Emerging Image Sensor Technologies 2021-2031: Applications and Markets" outlines the current status and future applications for a wide range of emerging image sensor technologies. This includes the event-based vision sensors outlined here, but also emerging technologies for short-wave infrared (SWIR) imaging that are likely to replace InGaAs, hybrid quantum dot or organic semiconductor on silicon sensors, thin-film photodetectors, flexible x-ray detectors, hyperspectral imaging, and more. Also included are highly granular 10-year market forecasts by revenue and volume (split by technology and application), along with multiple application case studies and technological/commercial readiness assessments. The report also includes multiple company profiles based on interviews with early-stage and established companies. Further details and downloadable sample pages can be found at www.IDTechEx.com/ImageSensors.

About IDTechEx

IDTechEx guides your strategic business decisions through its Research, Subscription and Consultancy products, helping you profit from emerging technologies. For more information, contact research@IDTechEx.com or visit www.IDTechEx.com. 

Images Download:

https://www.dropbox.com/sh/ug80hyh2fyqfdi4/AACMRgekBtRIi1zOoNGr9TYca?dl=0 

 About IDTechEx

IDTechEx guides your strategic business decisions through its Research, Subscription and Consultancy products, helping you profit from emerging technologies. For more information, contact research@IDTechEx.com or visit www.IDTechEx.com.

Media Contact:

Natalie Moreton
Digital Marketing Manager
press@IDTechEx.com 
+44(0)1223 812300

Social Media Links:
Twitter: https://www.twitter.com/IDTechEx 
LinkedIn: https://www.linkedin.com/company/idtechex/ 
Facebook: https://www.facebook.com/IDTechExResearch 

Photo : https://mma.prnewswire.com/media/1582144/Event_based_sensing_graphics.jpg
Logo: https://mma.prnewswire.com/media/478371/IDTechEx_Logo.jpg  

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