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Self-Healing Wire Insulation
Thermomechanical Methodology for Stabilizing Shape Memory Alloy (SMA) Response
Space Optical Communications Using Laser Beams
High Field Superconducting Magnets
Active Response Gravity Offload and Method
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Sonar Inspection Robot System
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Improved Signal Chains for Readout of CMOS Imagers

Two major imitations of prior readout signal chains are overcome.An improved generic design has been devised for implementing signal chains involved in readout from complementary metal oxide/semiconductor (CMOS) image sensors and for other readout integrated circuits (ICs) that perform equivalent functions. The design applies to any such IC in which output signal charges from the pixels in a given row are transferred simultaneously into sampling capacitors at the bottoms of the columns, then voltages representing individual pixel charges are read out in sequence by sequentially turning on column-selecting field-effect transistors (FETs) in synchronism with source-follower and operational-amplifier-based amplifier circuits.

Posted in: Briefs, Physical Sciences

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Improving 3D Wavelet-Based Compression of Hyperspectral Images

Detrimental effects of spectral ringing are reduced or eliminated.Two methods of increasing the effectiveness of three-dimensional (3D) wavelet-based compression of hyperspectral images have been developed. (As used here, “images” signifies both images and digital data representing images.) The methods are oriented toward reducing or eliminating detrimental effects of a phenomenon, referred to as spectral ringing, that is described below.

Posted in: Briefs, Physical Sciences

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Video Recording Server

Videology Imaging Solutions, Greenville, RI, offers the 60SV12VA-B single-channel server that enables users to upgrade existing analog cameras to be IP-addressable and record remotely onto an SD card. The server incorporates the Extended-Recording System (ERS) firmware to allow for continuous or triggered video recording and rerecording of up to 16 GB of MJPEG video, without data loss. The server can record simultaneously and independently, and eliminates the need to cable back to the head end. Data can be stored and secured separately.

Posted in: Products, Imaging

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HDTV Network Security Camera

The AXIS Q1755 network camera from Axis Communications, Chelmsford, MA, features HDTV performance in compliance with the SMPTE standard in resolution, color representation, and frame rate. It is designed for securing areas where greater image detail is required, such as airports and passport control areas. It delivers HDTV 1080i or 720 resolution, 16:9 aspect ratio, and supports both H.264 and Motion JPEG in full frame rate.

Posted in: Products, Imaging

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Thermal Imaging Camera

Mikron Infrared, Oakland, NJ, offers the MCL320MF “smart” thermal imaging camera for use in process control applications where thermal data is needed to interface directly with process control systems, without the need for a PC or external software interface. It features 320 × 240 resolution, digital outputs, and streaming video, and can detect thermal abnormalities without multiple temperature sensors. It provides alarm notification directly to the process control system.

Posted in: Products, Imaging

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CMOS Image Sensor

The MLX75307 CMOS image sensor from Melexis, Concord, NH, is designed for automotive front vision applications such as advanced driver assistance systems, high-beam assist, and night vision. It also can be used in medical and industrial applications. The sensor features a high-dynamic-range pixel matrix that extends the input and output dynamic ranges. It also feature a low-light response boost that increases image brightness and contrast in low-light conditions.

Posted in: Products, Imaging

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Motorized Zoom Lens

Resolve Optics, Chesham, UK, offers the Model 304 motorized zoom lens that delivers high-definition images (720-line progressive and 1080-line interlaced) in a 10× zoom lens that measures 84 × 70 × 70 mm. A camera mount incorporates topside and back focus adjustment so the lens can be set up on any 1/3", 3-chip high-definition camera.

Posted in: Products, Imaging

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