搜索结果: 1-15 共查到“工学 Contrast”相关记录28条 . 查询时间(0.078 秒)
A Fuzzy-based Method for Remote Sensing Image Contrast Enhancement
Image Processing Colour Interpretation Fuzzy Logic
2015/12/3
Many conventional contrast enhancement techniques adopt a global approach to enhance all the brightness level of the image. However, it is usually difficult to enhance all land cover classes appearing...
Study on Overlaying Remote Sensing Image on Surface-underground Contrast Plan
Digital Mapping Registration Terrestrial Photogrammetry
2015/12/2
Surface-underground contrast plan, as one of the most important engineering maps in the general safety management and production of the coalmine, overlays both topographical map and underground mining...
A Contrast among Experiments in Three Low-altitude Unmanned Aerial Vehicles Photography: Security, Quality & Efficiency
Low altitude Aerial photography Photogrammetry Unmanned helicopter
2015/11/24
At present, the vast majority of photographic measurement units are in a state of "measuring" instead of "photographing". In order to combine "photographing" with "measuring" more closely, an engineer...
COASTAL DIGITAL SURFACE MODEL ON LOW CONTRAST IMAGES
UAV low contrast DSM coastal survey MicMac
2015/9/21
Coastal sandy environments are extremely dynamic and require regular monitoring that can easily be achieved by using an unmanned aerial system (UAS) including a drone and a photo camera. The acquired ...
Orthoprojection with contrast equalization using terrestrial laserscanning
Orthoprojection contrast equalization terrestrial laserscanning
2015/8/25
Orthoprojection with contrast equalization using terrestrial laserscanning.
CONTRAST BETWEEN LIGHT AND SOUND WAVELENGTHS PERCEIVED BY HUMANS
electromagnetic acoustic waves perceived visible light wavelengths correlated
2015/7/28
A quantitative interrelation between the physical parameters of electromagnetic and acoustic waves perceived by the sight and hearing organs of a human has been discovered. It is shown that visible li...
Gray and Color Image Contrast Enhancement by the Curvelet Transform
Contrast enhancement curvelets ridgelets wavelets
2015/6/17
We present in this paper a new method for contrast enhancement based on the curvelet transform. The curvelet transform represents edges better than wavelets, and is therefore well-suited for multiscal...
THE CONTRAST RESEARCH OF THE METHODS OF RESTRAINING THE SPECKLE NOISE OF SAR IMAGES
SAR High resolution Method Analysis Model
2015/6/1
There commonly exists speckle noise in the SAR images. It badly disturbs the extraction and interpretation of the information of the objects, influences the application of the SAR images. So it has im...
A NOVEL APPROACH FOR EDGE DETECTION OF LOW CONTRAST SATELLITE IMAGES
Sobel Edge Detector Fractional Order Differentiator Chebyshev Polynomial based Approximation Satellite Images
2015/4/1
Discrimination between texture edges and geometrical edges is very difficult in low contrast images. Satellite images are low contrast images. It is important to extract the edges that are not clearly...
Ultrahigh-contrast and large-bandwidth thermal rectification in near-field electromagnetic thermal transfer between nanoparticles
Ultrahigh-contrast large-bandwidth thermal electromagnetic thermal transfer between nanoparticles
2015/8/7
We exploit the unique properties of optical waves in nanophotonic structures to enhance the capabilities for active control of electromagnetic thermal transfer at nanoscale. We show that the near-@...
The field-sequential-color liquid crystal display (FSCLCD) without a color filter enables high light efficiency, wide color gamut, and low material cost. However, the visual defect of color breakup (C...
Brightness and contrast enhancement of reflective LCDs by microlens array light control films
reflected liquid crystal display off-axis microlens arry light control film brightness contrast ratio
2011/11/29
An off-axis microlens array light control film (OMA-LCF) for brightness and contrast nehancement in reflective in reflctive liquidcrystal displays (LCDs) is demonstrated.The OMA-LCF is constructed wit...
Microcell Liquid Crystal Film for High-Contrast Flexible Display Applications
flexible display liquid crystal micro-cell plastic LCD
2011/11/24
We have successfully fabricated high-contrast microcell liquid crystal displays (LCDs) using microstructure replication technology in thin plastic film substrates. These novel flexible LCDs comprise m...
Fabrication and Demonstration of a Pure Silica-Core Waveguide Utilizing a Density-Based Index Contrast
Glass waveguides Thin-Films Other Properties
2015/5/26
We report a novel approach for creating a dopant-free pure silica-core waveguide(PSCW) for chip-scale waveguides with the goal of reaching fiber-like losses on-chip.Stoichiometric silica films were us...
Analog Signal Performance of a Hollow-Core-Waveguide using High-Contrast-Gratings
Analog Signal Performance Hollow-Core-Waveguide High-Contrast-Gratings
2015/5/21
On-chip analog signal performance of high-contrast-grating hollow-core-waveguide is evaluated. SFDR of >100 dB can be achieved for IM3 over a wide RF frequency range of 80 GHz and optical wavelength b...