Imaging

Spatially-Invariant Vector Quantization for Image Analysis

A new software tool aims to make computer-aided tissue analysis faster, more accurate, and more consistent. Researchers at the University of Michigan Health System and their colleagues have developed a software tool that aims to make the detection of abnormalities in cell and tissue samples faster, more accurate, and more consistent. The technique, known as Spatially-Invariant Vector Quantization (SIVQ), can pinpoint cancer cells and other critical features from digital images made from tissue slides.

Posted in: Bio-Medical, Imaging, Software, Medical, Diagnostics, Briefs, MDB

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Benefits of a Fully Digital Comparator for Inspection of Orthopedic Implants

This system offers advantages over traditional optical comparators, including the ability for multiple operators to compare parts to the CAD file at any one time.Manufacturers of orthopedic implants take great care to ensure that their products are of the highest quality. One way they do this is by performing numerous inspection operations at various stages throughout the manufacturing process. These have great value — however, they also represent considerable expense. Until recently, implant manufacturers reaped only a small fraction of the potential benefits of these efforts mainly because, in the end, few records of the inspection operations remained. Those that did exist were of poor and irregular quality. This is reasonable, considering in-process inspections are performed on the shop floor by system operators, whose primary function is to manufacture parts. Most inspection records consisted of a few checkmarks on a paper report indicating that the required inspection had indeed been performed successfully. These records do not do justice to industry-wide, high-quality standards.

Posted in: Bio-Medical, Imaging, Implants & Prosthetics, Medical, Briefs, MDB

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Quantifying Risk in Various Methods of Continuous Monitoring

Medical device companies should weigh the advantages and disadvantages of different approaches to monitoring critical environments.Worldwide, there is growing concern about how to protect public safety and increase cooperation among regulatory agencies to audit medical device companies and their suppliers. Regulatory agencies are increasingly looking to global organizations such as the Global Health Task Force (GHTF) to adopt harmonization in regulatory practices. As recent as August 2010, the GHTF made medical device suppliers inclusive of site auditing guidelines. (“A supplier delivering materials, components, or services, that may influence the safety and performance of the product.” GHTF/SG4/N33)

Posted in: Bio-Medical, FDA Compliance/Regulatory Affairs, Imaging, Medical, Patient Monitoring, Briefs, MDB

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Utilizing Machine Vision Engines for Advanced Quality Control and Object Detection

Advanced object and feature recognition eliminates the need for physical probing or fixed sensors.Incorporating machine vision engines into an OEM system with automated handling provides a wide range of benefits to the manufacturer. Machine vision engines are self-contained vision systems that include the optics, lighting, image sensor, electronics, and software to enable standalone “intelligent” decision-making using vision software. Machine vision engines are also much more compact than traditional industrial machine vision systems, which makes them more appropriate for integration into OEM systems with limited space.

Posted in: Bio-Medical, Imaging, Photonics, Manufacturing & Prototyping, Medical, Briefs, MDB

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Advanced Data Analysis for Resistance Weld Monitoring

Weld monitoring instrument supports process development, production monitoring, and data requirements for medical device development.Medical device manufacturers are experiencing an ever-increasing emphasis on process accountability. ADAM (Advanced Data Analysis Monitor) is a technology developed for resistance welding that gives manufacturers the information they need to support process development and production monitoring. It also supplies the data necessary to document quality requirements contained in ISO (International Organization for Standardization), good manufacturing practice (GMP), and total quality management (TQM) programs. The instrument monitors not only what happens after the trigger point of a typical weld monitor, but also before the trigger point, giving a 360-degree view of the process.

Posted in: Bio-Medical, Imaging, Software, Medical, Briefs, MDB

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Embedded Vision System Increases Inspection Capabilities

Food manufacturers are held to strict agency regulations regarding product quality and consistency. Repeatable visual inspections are critical to ensure consumers receive a consistent and safe product. As regulations have increased, machine vision technology has become more intelligent to follow suit — a trend that some machine builders are using to their advantage.

Posted in: Imaging, Application Briefs

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Non-Contact 3D Digitizer

The Konica Minolta RANGE 7 non-contact 3D measurement camera from Konica Minolta Sensing Americas, Ramsey, NJ, has a scan range of 450-800 mm, an accuracy of ±40 μm, and a scanning input time of approximately 2 seconds per shot. The camera and its controller can be integrated into a single body weighing approximately 6.7 kg. In addition, the RANGE 7, which has a 1.31 megapixel CMOS sensor, features a 3D preview function and interchangeable TELE and WIDE lenses. A multi-focus mode also automatically shifts the focus position to provide three-dimensional measurement data, and an auto-focus function adjusts to a user’s specified points. User calibration can be performed with an optional, movable stand.

Posted in: Imaging, Products

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Thermal Imaging Processor

The combination of a ThermoViewTM Pi20 process imager and DataTemp® Pi (DTPi) software from Raytek®, Santa Cruz, CA, provides real-time viewing, archiving, and playback of both online and off-line thermal images. Featuring an IP54 rating, the fixed-mounted ThermoView Pi20 operates in two temperature ranges: -40 to 500 °C and 200 to 2000 °C. For each temperature range, two lens options are available: 21.7 × 16° or 30 × 22°. The ThermoView Pi20 provides networking over distances using a standard Ethernet interface, which transmits up to 30 frames per second. The DataTemp Pi software supports up to 16 Pi20 cameras simultaneously in a single software package, where each camera can have up to 192 process alarms to be assigned as relay outputs. The software interfaces to remote I/O modules and can be employed as triggering inputs, allowing for file saving.

Posted in: Imaging, Products

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3D Automated Metrology System

Olympus Integrated Technologies America, San Jose, CA, has released the Olympus IR 3D-IC Automated Metrology System, which provides IR microscopy and imaging technology to verify alignment of bonded wafers and through silicon vias (TSVs). The system observes and acquires images of alignment targets and vias by observing up to 1200 μm of bulk silicon to the patterned surfaces. Overlaid alignment marks are imaged and measured to verify bonding alignment accuracy.

Posted in: Imaging, Products

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Thermal Imaging Infrared Camera

The FLIR i5 and FLIR i7 thermal imagers from FLIR Systems, Portland, OR, produce infrared images with a 2.8" color display and 2% thermal accuracy. The FLIR i5, which has an 80 × 80 pixel resolution, provides a center-spot measurement mode. For extensive analysis of job sites, the FLIR i7, which has a RESNET-compliant, 120 × 120 pixel resolution, adds two measurement nodes: area (minimum/maximum) and isotherm (above/below). Both IR cameras capture temperature analysis/reporting in FLIR’s patented radiometric JPEG format.

Posted in: Imaging, Products

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