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  • Improving the representation of large landforms in analytical relief shading

    Creator:
    Marston, Brooke E.
    Abstract:
    Relief shading is the most common type of cartographic relief representation for print and digital maps. Manual relief shading results in informative and visually pleasing representations of terrain, but it is time consuming and expensive to produce. Current analytical relief shading can be created quickly, but the resulting maps are...
    Resource Type:
    Masters Thesis
    Full Text:
      lines  are  extracted  from  a  digital  terrain  model  and  used  in  a

  • Analysis of spatial data from terrain models for landslide predictive mapping

    Creator:
    Santha, Rubini
    Abstract:
    Landslides are a pervasive hazard that can result in substantial damage to properties and loss of life throughout the world. To understand the nature and scope of the hazard, landslide hazard mapping has been an area of intense research by identifying areas most susceptible to landslides in order to mitigate...
    Resource Type:
    Dissertation
    Full Text:
    landslide prone regions. A Digital Elevation Model (DEM) is one of the most critical data sources used

  • Forest Soils and Topography : Decoding the Influence of Physical Site Characteristics on Soil Water and Forest Productivity in Oregon's Coast Ranges

    Creator:
    Rodman, Henry
    Abstract:
    Forest soils and topography have long been known to influence forest productivity in complex terrain such as Oregon’s Coast Ranges. Incorporating physical site characteristics into predictions of forest growth and yield, however, has been problematic because of the high spatial variability of soil properties and the challenges associated with representing...
    Resource Type:
    Masters Thesis
    Full Text:
    digital elevation model for explaining local variability in forest productivity across a forested

  • Applied color processing

    Creator:
    Zhang, Heng
    Abstract:
    The quality of a digital image pipeline relies greatly on its color reproduction which should at a minimum handle the color constancy, and the final judgment of the excellence of the pipeline is made through subjective observations by humans. This dissertation addresses a few topics surrounding the color processing of...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________ Huaping Liu The quality of a digital image pipeline relies greatly on

  • Noise coupling techniques in multi-cell delta-sigma modulators

    Creator:
    Bonu, Madhulatha
    Abstract:
    High performance multi-cell delta-sigma modulators are a preferred choice in applications which require programmability. Multi-cell delta-sigma modulators with M unit cells provide 10log10(M) SQNR improvement for the same thermal noise and bias power due to the uncorrelated quantization noises of the M unit ADCs. This concept is used in this...
    Resource Type:
    Masters Thesis
    Full Text:
    resolution and high bandwidth are the requirements in many high-performance delta-sigma analog-to-digital

  • A 10 bit algorithmic A/D converter for a biosensor

    Creator:
    Rengachari, Thirumalai
    Abstract:
    This thesis presents a novel algorithmic A/D converter to be used in a biosensor. The converter is capable of a conversion rate of 1.5 bits/phase and hence the required conversion time is reduced. The proposed architecture is analyzed for non-ideal effects and compared with existing algorithmic A/D architectures. The converter...
    Resource Type:
    Masters Thesis
    Full Text:
    ............................................................... 7 3. Analog-to-Digital Converter Architectures

  • Evaluation of UWB techniques for indoor position locationing

    Creator:
    Chou, Tai Chian
    Abstract:
    Time of Arrival (TOA) is a popular technique used for geolocation. This thesis evaluates the use of TOA techniques indoors. The accuracy of measuring distances using TOA is dependent on the bandwidth of the system and the multipath conditions between the receiver and transmitter. System bandwidth has a significant effect...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3 Receiver Model to estimate T

  • Electrical characterization and circuit modeling of interconnections and packages for high speed circuits by time domain measurements

    Creator:
    Jong, Jyh-ming
    Abstract:
    With edge rates of high speed digital devices pushing into the sub-nano second range, interconnections with the associated packages play a major role in determining the speed, size and performance of digital circuits and systems. The purpose of this study is to develop experimental techniques based on time domain peeling...
    Resource Type:
    Dissertation

  • Image features and learning algorithms for biological, generic and social object recognition

    Creator:
    Zhang, Wei
    Abstract:
    Automated recognition of object categories in images is a critical step for many real-world computer vision applications. Interest region detectors and region descriptors have been widely employed to tackle the variability of objects in pose, scale, lighting, texture, color, and so on. Different types of object recognition problems usually require...
    Resource Type:
    Dissertation
    Full Text:
    with Dietterich, T., contributed the codebook learning algorithm and the logistic model trees

  • Processing sequences of chromatophore images with application to a signal transduction pathway modeling

    Creator:
    Orhanovic, Iva
    Abstract:
    Systems biology is becoming increasingly important for the study of living organisms. It focuses on the mathematical understanding of biological systems. Cells, the basic units of all living creatures, are biological systems of major interest. Considerable work is being done towards modeling cells as mathematical systems. At the same time,...
    Resource Type:
    Dissertation