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FEATURES

Selecting the Right Filter Is Critical to SWIR Imaging
Shortwave IR (SWIR) imaging has seen a surge in use in recent years, playing an important role in imaging agricultural products, food, pharmaceuticals, and high-heat glass and metal manufacturing. Given the strong absorption of moisture within the SWIR range, users can check fill levels in opaque bottles, visualize underlying features such as anti-counterfeiting security codes, or use the technology for a wide range of other applications. Sugar (top) and salt may appear the
Vision Spectra, Winter 2022
Inspecting CMOS Image Sensors for Dirt and Defects
Automatic optical inspection (AOI) systems provide fast, noncontact, and reliable high-resolution defect recognition for the microelectronics industry and are widely used and incorporated into the industry’s in-line production flow. In-line...
Vision Spectra, Winter 2022
The Rise of Embedded Vision Puts FPGAs in the Spotlight
A field-programmable gate array (FPGA), as the name implies, is an integrated circuit that contains an array of transistor-based logic gates. The connections between these gates can be changed at will, allowing for rewiring that alters what the FPGA...
Vision Spectra, Winter 2022
AI as a Decision-Support Tool for Human Operators
When it comes to inspection tasks, humans do a pretty good job. We rely on our senses to detect differences, and even on taste and smell, depending on the product. If we spot a product difference or deviation, we are adaptable and can make a quick...
Vision Spectra, Autumn 2022
3D Scanning Method Captures Fast-Moving Objects Without Motion Artifacts
Logistics can spell the difference between success and failure in business. Receiving, storing, inspecting, sorting, packaging, labeling, shipping — all of these steps need to happen quickly to meet rising customer demands and deadline expectations....
Vision Spectra, Autumn 2022
Vision Elevates Robot Performance in Logistics
Allied Market Research in the spring projected that the value of the global logistics automation market would roughly triple from its 2020 value to $147.4 billion by 2030. Even before such high growth was projected, this sector had made considerable...
Vision Spectra, Autumn 2022
More Processing Power for Today’s Smart Cameras
The newest industrial smart cameras feature significant advancements over their predecessors. 3D vision is becoming more common, and sophisticated onboard analytics are on the way to becoming standard. As a result, smart cameras are enabling complex...
Vision Spectra, Autumn 2022
Assessing Food Inspection Techniques
A decade ago, food supply was not an issue for most of the world’s population, but today the world is facing a food crisis. Multiple factors have contributed to the problem, including recent supply chain issues, delivery and labor shortages,...
Vision Spectra, Summer 2022
Image Sensor Sockets: A Key Factor in Camera Design
Camera makers — and, therefore, image sensor makers — today are under greater pressure than ever to offer new models that provide higher resolution and higher speed, respectively. With higher resolution comes sharper images. With higher...
Vision Spectra, Summer 2022
Food Inspection Techniques: From the Visible to 3D Imaging
Food sorting traces its origins all the way back to the nomadic hunter-gatherer days. While foraging out in the wild, gatherers handpicked fruits, vegetables, seeds, and nuts that would be shared with the rest of the tribe. Lacking the chemical...
Vision Spectra, Summer 2022
Navigating the Options for 3D Imaging
While 3D imaging in machine vision has been applied in key use cases for many years, use of the technology has recently grown and expanded, making it increasingly common in a wider range of applications. The best practices that can help to ensure a...
Vision Spectra, Summer 2022
Inspecting: One Line at a Time
When Artemis Vision took on a label inspection application, the client had a set of stringent conditions: They required high-resolution image capture and lighting, along with the ability to manage high throughput. They also needed to acquire the...
Vision Spectra, Spring 2022
Computational Metaoptics Enable Broadband Imaging Applications
Although camera technology has advanced considerably in the last few decades, there are constant demands for higher resolution, wider field of view, and full-color operation for many consumer, medical, industrial, and military applications. At the...
Vision Spectra, Spring 2022
Sensor Innovations Drive Expansion into New Markets
Image sensors are part of every smartphone and may seem to be a ubiquitous, mature technology — however, this is far from the case. While conventional CMOS detectors for visible light are well established, extensive opportunities exist for...
Vision Spectra, Spring 2022
Machine Vision and Photometry Inspect Automotive Symbols
In the automotive industry, safety is a paramount consideration when designing and manufacturing vehicles. Even as technology, consumer expectations, and market forces have evolved over the decades, safety is still at the forefront. Critical to the...
Vision Spectra, Spring 2022
Active Cooling Expands Design Options for Thermal Cameras
The use of thermal cameras by government and private security agencies to reduce crime or improve public safety has signifi­cantly increased. Closed-circuit tele­vision (CCTV) and internet protocol (IP) security cameras can be found in cities,...
Vision Spectra, Winter 2021
Intelligent Lighting Brings Machine Vision to New Heights
Machine vision lighting technology must constantly evolve to meet increasing demands and keep pace with advancing imaging technologies. Dynamic machine vision systems, the Industrial Internet of Things (IIoT), and deep learning are areas in which...
Vision Spectra, Winter 2021
Running AI at the Edge
The raw computing power within most embedded systems is an order of magnitude greater than only a few short years ago. More robust computing power, coupled with recent optimizations in how AI networks are processed, has created new opportunities for...
Vision Spectra, Winter 2021
Pandemic Buying Puts Focus on Mobile Barcode Readers
An audible beep often indicates a successful barcode scan. Such scans are performed 6 billion times a day, according to the global supply chain barcode standards company GS1 US. Barcode scanners are part of a multibillion dollar market that is...
Vision Spectra, Winter 2021
Polarization Cameras Get Ready for Prime Time
Polarization can remove glare in vision systems and improve imaging through transparent materials such as glass. This capability is beneficial for surface inspection of film thickness or tilt angle. It is also critical for spotting contaminants in...
Vision Spectra, Autumn 2021
The Pandemic Highlights Vision-Based Inspection in the Pharmaceutical Industry
By nature of what is at stake, pharmaceutical and medical industries have developed much stricter standards compared to most other sectors. From day one, quality control and track-and-trace processes have been paramount for pharmaceuticals, and the...
Vision Spectra, Autumn 2021
Harsh Environments Call For Athermalized Imaging Lenses
All matter expands and contracts in response to changes in temperature — imaging lenses are no exception. Standard-design lenses developed for machine vision systems perform well in temperature-controlled environments in applications where...
Vision Spectra, Autumn 2021
The Merits of Processing Data at the Edge Versus in the Cloud
Embedded vision, whether it involves the ability to capture still images or video, is the biggest source of data available today, as more and more devices become part of the Internet of Things. In an IoT world, vision is no longer just about the...
Vision Spectra, Autumn 2021
Ruggedization Future-Proofs Lens Designs
As machine vision applications have expanded rapidly beyond the controlled environments of the factory, so too has the need for ruggedized lens designs that are able to meet more diverse and nuanced requirements. This is not to say that no demand...
Vision Spectra, Autumn 2021
3D Imaging Sees Growth in Multiple Dimensions
From time to time, we all find ourselves forced to rummage through the cluttered jumble of our home “junk drawer” to dig out a screwdriver, battery, paper clip, or other much-needed object. For humans, this is merely cause for fleeting...
Vision Spectra, Summer 2021
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