Topic
Night vision
About: Night vision is a research topic. Over the lifetime, 6004 publications have been published within this topic receiving 67372 citations.
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Patent•
12 Aug 2011
TL;DR: In this article, true color images are generated by combining data from one or more color cameras with data collected from multiple infrared cameras, in a non-distracting fashion, which can also facilitate identification and reproduction of various objects that may not be visible or readily identifiable in infrared or false color imagery.
Abstract: True color images are produced by combining data collected from one or more color cameras with data collected from one or more infrared cameras. The produced images are the result of combining portions of the visible light data with portions of the infrared light data that may have been captured at dark, at daytime or at low light level conditions. These images appear as normal color images, with infrared information highlighted in a non-distracting fashion. The true color images that are produced in this fashion can also facilitate identification and reproduction of various objects that may not be visible or readily identifiable in infrared or false color imagery.
47 citations
TL;DR: Low vitamin A levels and frequent ocular complaints that might be associated with decreased vitamin A are common findings in the post-RYBG patient population.
47 citations
TL;DR: This work describes, for different types of MEMS, how the required non-electrical test stimuli can be induced on-chip by means of electrical signals, which provides the basis for adding BIST strategies for MEMS parts embedded in the coming generation of integrated systems.
Abstract: A major task for the implementation of Built-In-Self-Test (BIST) strategies for MEMS is the generation of the test stimuli. These devices can work in different energy domains and are thus designed to sense signals which are generally not electrical. In this work, we describe, for different types of MEMS, how the required non-electrical test stimuli can be induced on-chip by means of electrical signals. This provides the basis for adding BIST strategies for MEMS parts embedded in the coming generation of integrated systems. The on-chip test signal generation is illustrated for the case of MEMS transducers which exploit such physical principles as time-varying electrostatic capacitance, piezo-resistivity effect and Seebeck effect. These principles are used in devices such as accelerometers, infrared imagers, pressure sensors or tactile sensors. For implementation, we have used two major MEMS technologies including CMOS-compatible bulk micromachining and surface micromachining. We illustrate the ability to generate on-chip test stimuli and to implement a self-test strategy for the case of a complete application. This corresponds to an infrared imager that can be used in multiple applications such as overheating detection, night vision, and earth tracking for satellite positioning. The imager consists of an array of thermal pixels that sense an infrared radiation. Each pixel is implemented as a suspended membrane that contains several thermopiles along the different support arms. The on-chip test signal generation proposed requires only slight modifications and allows a production test of the imager with a standard test equipment, without the need of special infrared sources and the associated optical equipment. The test function can also be activated off-line in the field for validation and maintenance purposes.
47 citations
TL;DR: This paper describes two studies in which two night-vision enhancement systems were examined to compare nighttime driver performance in pedestrian detection and the effect of clutter on glance behavior during pedestrian detection was examined in a driving simulator.
Abstract: This paper describes two studies in which two night-vision enhancement systems were examined to compare nighttime driver performance in pedestrian detection. In the first study, the levels of clutter in the images displayed by the two types of night-vision enhancement systems were measured objectively and subjectively. The subjective ratings of clutter changed as a power function of the objective measure of clutter intensity. In the second study, the effect of clutter on glance behavior during pedestrian detection was examined in a driving simulator. Night-vision images with less clutter required shorter search times and fewer glances to detect the pedestrian, but the duration of each glance remained relatively constant.
47 citations
Patent•
25 Jul 2003TL;DR: In this article, techniques using QDIP technology to form imaging focal plane arrays capable of sensing one or more colors are disclosed, which enables the generation of an IR image that could be used for applications such as surveillance, night vision, and search and rescue operations.
Abstract: Techniques using QDIP technology to form imaging focal plane arrays capable of sensing one or more colors are disclosed. Hybridizing such QDIP arrays to supporting electronic circuitry (e.g., such as CMOS readout circuitry) enables the generation of an IR image that could be used for applications such as surveillance, night vision, and search and rescue operations.
47 citations