Results 261 to 270 of about 100,759 (311)
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Remote measurement of surface roughness, surface reflectance, and body reflectance with LiDAR
Applied Optics, 2015Light detection and ranging (LiDAR) intensity data are attracting increasing attention because of the great potential for use of such data in a variety of remote sensing applications. To fully investigate the data potential for target classification and identification, we carried out a series of experiments with typical urban building materials and ...
Xiaolu, Li, Yu, Liang
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Double Intelligent Reflecting Surface for Secure Transmission With Inter-Surface Signal Reflection
IEEE Transactions on Vehicular Technology, 2021In this correspondence, we use double intelligent reflecting surface (IRS) assisted design to enhance the secrecy performance of wireless transmission. Different from the existing studies in the literature, the inter-surface signal reflection is considered in this work, which makes the formulated secrecy rate (SR) optimization problem difficult to ...
Limeng Dong +3 more
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Reflective surfaces for panoramic imaging
Applied Optics, 1997A family of reflective surfaces is presented that, when imaged by a camera, can capture a global view of the visual environment. By using these surfaces in conjunction with conventional imaging devices, it is possible to produce fields of view in excess of 180 degrees that are not affected by the distortions and aberrations found in refractive wide ...
Chahl, JS, Srinivasan, MV
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Canadian Journal of Philosophy, 1992
Can there be a first-order, philosophical or psychological theory that explains all the facts of surface perception? By ‘first-order’ I mean a theory about the constituents of what J.J. Gibson called ‘the ecological environment’; and by ‘surface perception,’ I mean the perception of the surfaces of any of those ecological constituents that have ...
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Can there be a first-order, philosophical or psychological theory that explains all the facts of surface perception? By ‘first-order’ I mean a theory about the constituents of what J.J. Gibson called ‘the ecological environment’; and by ‘surface perception,’ I mean the perception of the surfaces of any of those ecological constituents that have ...
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2019
This chapter examines the use of Gothic symbols, settings and archetypes in the context of gender. It pays particular attention to the use of the double, the Other, and associated symbols such as mirrors and masks, arguing that these are used to explore the limits of female identity and to interrogate issues of control and change.
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This chapter examines the use of Gothic symbols, settings and archetypes in the context of gender. It pays particular attention to the use of the double, the Other, and associated symbols such as mirrors and masks, arguing that these are used to explore the limits of female identity and to interrogate issues of control and change.
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Toric Surfaces with Reflection Symmetries
Proceedings of the Steklov Institute of Mathematics, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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UVR reflections at the surface of the eye
Journal of Photochemistry and Photobiology B: Biology, 2004Sunlight plays an etiological role in the formation of skin cancers [Phys. Med. Biol. 24 (1979) 931]. Non-melanoma skin cancers commonly arise in sun-exposed parts of the body, especially on the head and neck regions [Int. J. Dermatol. 34 (6) (1995) 398] although the amount of sun exposure that is required for the formation of skin cancers is still ...
Birt, Benjamin +2 more
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Reflective surfaces as computational sensors
Image and Vision Computing, 2001Abstract We present a family of reflective surfaces that will provide a wide field of view while preserving the geometry of a plane perpendicular to their axis of symmetry. Used in conjunction with a conventional imaging device, these surfaces act as computational sensors capable of providing unwarped images automatically, eliminating the need for ...
R. Andrew Hicks, Ruzena Bajcsy
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Reflection and Refraction on Implicit Surfaces
Journal of Computer Science and Technology, 2006Implicit surfaces are often used in computer graphics. They can be easily modeled and rendered, and many objects are composed of them in our daily life. In this paper, based on the concept of virtual objects, a novel method of real-time rendering is presented for reflection and refraction on implicit surface.
Wei Hu +3 more
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Reflection of a Shock Wave at a Surface
The Physics of Fluids, 1966A new finite difference method is employed in obtaining numerical solutions for the complete Navier-Stokes equations. The physical problem treated is the time-dependent propagation of a one-dimensional disturbance, which is produced by the forward motion of a piston through a compressible, viscous, thermally conducting, perfect diatomic gas and its ...
Scala, Sinclaire M., Gordon, Paul
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