Imaging

Flexible Sheet Camera Wraps Around Objects

A novel sheet camera developed by Columbia Engineering researchers can be wrapped around everyday objects to capture images that cannot be taken with one or more conventional cameras.

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Vision Sensors

Teledyne DALSA, Waterloo, ON, Canada, announced BOA™ Spot vision sensors that combine a BOA vision system with integrated LED lighting, lens cover, and software. Available with 640 × 480 or 1280 × 960 image resolution, the sensors can inspect multiple part features at the same time. Embedded vision tools for part locating, feature finding, counting, and measuring applications offer a graphic user interface and can be combined and used numerous times for inspection tasks. For Free Info Visit http://info.hotims.com/61060-100

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SWIR Camera

The 1280SCICAM shortwave infrared camera from Princeton Infrared Technologies, Monmouth Junction, NJ, is a lattice-matched indium gallium arsenide (InGaAs) sensor that features 1280 × 1024 resolution at frame rates greater than 95 frames per second (fps) at full-frame size, and operates in the visible to shortwave infrared spectrum from 0.4 μm to 1.7 μm. A 3-stage thermoelectric cooler is integrated into a vacuum package to provide three temperature set-points for different conditions. For Free Info Visit http://info.hotims.com/61060-101

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Day/Night Cameras

D-Link, Austin, TX, announced the 5-megapixel day/night IP DCS-6517 dome network camera and the DCS-7517 Bullet network cameras. Supporting 2560 × 1920 resolution and digital WDR image enhancement, the cameras provide real-time video compression using the H.264 and MJPEG codecs, and support three separate profiles for simultaneous video streaming and recording. Both cameras have built-in IR LED illuminators for use in complete darkness. For Free Info Visit http://info.hotims.com/61060-102

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Vision Sensors

Cognex Corp., Natick, MA, introduced the In-Sight® 2000 vision sensors that include an integrated, high-performance image formation system consisting of field-interchangeable lenses and a patent-pending LED ring light that produces diffuse illumination across the entire image, eliminating the need for external lighting. The lens can be swapped out and the color of the integrated ring light changed as needed. For Free Info Visit http://info.hotims.com/61060-103

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Touch Display Kit

Avnet, Phoenix, AZ, released the AES-ALI3-AMPIRE10-G 10-inch Touch Display Kit. The kit demonstrates an embedded display system, allowing for video output to an integrated 10" LVDS display. The kit combines a 1280 × 800 WXGA TFT-LCD display with a PCAP touch sensor overlay, I2C touch controller, LED backlight supply, haptic feedback driver, 3-axis accelerometer, and all necessary cables for connecting to a development board. For Free Info Visit http://info.hotims.com/61060-104

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SWIR Camera

Xenics, Leuven, Belgium, offers the Bobcat-320 SWIR camera, a medium-resolution camera yielding low noise and low dark current. It features a thermo-electric cooler for sensor stabilization, an onboard image processing unit, and windowing and autoexposure functionality. Other features include standard CameraLink or GigE Vision with Power over Ethernet interfaces, and an InGaAs imager. For Free Info Visit http://info.hotims.com/61060-105

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Continental-Scale Mapping of Adélie Penguin Colonies from Landsat Imagery

Remote sensing is used for biological conservation. Goddard Space Flight Center, Greenbelt, Maryland The Adélie penguin has a circum-Antarctic distribution and is widely considered a useful indicator of status and change in the Antarctic and Southern Ocean ecosystems. Breeding distribution of the Adélie penguin was surveyed with Landsat-7 Enhanced Thematic Mapper Plus (ETM+) over the entire continent of Antarctica. An algorithm was designed to minimize radiometric noise and to retrieve Adélie penguin colony location and spatial extent from the ETM+ data. In all, 259 ETM+ scenes were selected from the Lansdat archive from the 1999–2003 era and were used in the retrieval. Pixel clustering identified a total of 244 individual Adélie penguin colonies, ranging in size from a single pixel (900 m2) to a maximum of 875 pixels (0.788 km2). The Landsat retrievals successfully located Adélie penguin colonies that accounted for ≈96 to 97% of the regional population used as ground truth, with errors of omission and commission on the order of only 1 to 2%.

Posted in: Briefs, Tech Briefs, Environmental Monitoring, Photonics

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Photogrammetric-Based Pose Initialization and Propagation for Inertial Navigation Systems

NASA’s Jet Propulsion Laboratory, Pasadena, California The purpose of the Pose Initialization and Propagation (PIP) system is to provide an absolute navigational solution (position, velocity, and attitude) to a moving vehicle without using GPS. This was developed as a navigation system for rocket launches in a GPS-denied environment, but it is applicable to a variety of moving vehicles. It was designed to be integrated with JPL’s Terrain Relative Navigation system as a test of the Mars Entry, Descent, and Landing (EDL) system. It was successfully used by JPL on Masten Space Systems’ Xombie vehicle in 2014.

Posted in: Briefs, Tech Briefs, Photonics

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Multi-Channel Laser Absorption Spectrometer for Combustion Product Monitoring

This instrument can detect fires associated with electrical wiring and electronics packaging materials. NASA’s Jet Propulsion Laboratory, Pasadena, California Tunable laser absorption spectrometer (TLAS) sensors enable gas monitoring with high accuracy and gas specificity, and can be optimized for continuous, maintenance-free operation on long-duration manned spacecraft missions. This innovation is a portable, five-channel TLAS instrument designed to continuously monitor ambient concentrations of carbon monoxide, hydrogen chloride, hydrogen cyanide, hydrogen fluoride, and carbon dioxide, with low-level detection limits below the standard spacecraft maximum allowable concentrations. Monitoring of these particular hazardous compounds allows tracking of ambient conditions and enables detection of fires associated with electrical wiring and electronics packaging materials.

Posted in: Briefs, TSP, Tech Briefs, Photonics

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