On robust estimation of the location parameter

From the Publisher: 
The accessible presentation of this book gives both a general view of the entire computer vision enterprise and also offers sufficient detail to be able to build useful applications. Users learn techniques that have proven to be useful by first-hand experience and a wide range of mathematical methods. A CD-ROM with every copy of the text contains source code for programming practice, color images, and illustrative movies. Comprehensive and up-to-date, this book includes essential topics that either reflect practical significance or are of theoretical importance. Topics are discussed in substantial and increasing depth. Application surveys describe numerous important application areas such as image based rendering and digital libraries. Many important algorithms broken down and illustrated in pseudo code. Appropriate for use by engineers as a comprehensive reference to the computer vision enterprise.

Computer vision : a modern approach = 计算机视觉 : 一种现代的方法

Transparent conductors—A status review

MUCKE aims to mine a large volume of images, to structure them conceptually and to use this conceptual structuring in order to improve large-scale image retrieval. The last decade witnessed important progress concerning low-level image representations. However, there are a number problems which need to be solved in order to unleash the full potential of image mining in applications. The central problem with low-level representations is the mismatch between them and the human interpretation of image content. This problem can be instantiated, for instance, by the incapability of existing descriptors to capture spatial relationships between the concepts represented or by their incapability to convey an explanation of why two images are similar in a content-based image retrieval framework. We start by assessing existing local descriptors for image classification and by proposing to use co-occurrence matrices to better capture spatial relationships in images. The main focus in MUCKE is on cleaning large scale Web image corpora and on proposing image representations which are closer to the human interpretation of images. Consequently, we introduce methods which tackle these two problems and compare results to state of the art methods. Note: some aspects of this deliverable are withheld at this time as they are pending review. Please contact the authors for a preview.

http://ieeexplore.ieee.org/iel2/4524/12820/00592460.pdf

Image Processing

A scheme is developed for classifying the types of motion perceived by a humanlike robot. It is assumed that the robot receives visual images of the scene using a perspective system model. Equations, theorems, concepts, clues, etc., relating the objects, their positions, and their motion to their images on the focal plane are presented. >

http://ieeexplore.ieee.org/iel2/815/3148/00100651.pdf

Robot vision

Measurements of electrical and optical properties have been made on GexSe1-x amorphous thin films of about 1 µm thickness. From the experiment of electrical conductivity at various temperatures, two processes of the d.c. conductivity in GexSe1-x films are observed in plots of ln σ against 1/T. The thermoelectric power exhibits a maximum value of p-type conduction at pure Se and a change of the sign from positive to negative at 0.4<x<0.5. Measurements of the photoconductivity and the absorption spectra have been made at room temperature. It is found that the energy gap is decreased with increasing additions of the Ge content. An energy band model of amorphous GexSe1-x films has been proposed for consistent explanations of experimental data.

http://iopscience.iop.org/article/10.1143/JJAP.15.849/pdf

Electrical and Optical Properties of GexSe1-x Amorphous Thin Films

Thin films of ZnO:Al have been deposited on glass substrates by a pulsed laser deposition technique employing an ArF laser ( λ=193 nm). For all experiments, a repetition rate of 10 Hz, an energy density of 1 J/cm2, and an irradiation time of 20–30 min (12000–18000 shots) were assumed. Optical transmittance of around 90% was observed in the visible region of the spectrum for the 150–200 nm thick film. Resistivities of 1.43×10-4 Ω·cm and 5.62×10-4 Ω·cm were obtained at substrate temperatures of 300°C and room temperature, respectively.

Transparent Conducting Al-Doped ZnO Thin Films Prepared by Pulsed Laser Deposition

A multiple exposure fusion to enhance the dynamic range of an image is proposed The construction of high dynamic range images (HDRIs) is performed by combining multiple images taken with different exposures and estimating the irradiance value for each pixel This is a common process for HDRI acquisition During this process, displacements of the images caused by object movements often yield motion blur and ghosting artifacts To address the problem, this paper presents an efficient and accurate multiple exposure fusion technique for the HDRI acquisition Our method simultaneously estimates displacements and occlusion and saturation regions by using maximum a posteriori estimation and constructs motion-blur-free HDRIs We also propose a new weighting scheme for the multiple image fusion We demonstrate that our HDRI acquisition algorithm is accurate, even for images with large motion

Multiple Exposure Fusion for High Dynamic Range Image Acquisition

Transient currents induced by the polarity reversal of a dc voltage applied to a liquid-crystal cell have been experimentally studied. For voltages less than a characteristic value, the time occurrence of the peak current decreases with decreasing applied voltage, which is contrary to behavior expected for a normal carrier-transport process. To explain the experiments, a simple model based on the time variation of an applied voltage and the internal electric field induced by the adsorbed electric charges on the cell substrate has been proposed. The results from the model agree reasonably well with the experimental observations.

Transient currents in nematic liquid crystals.

Photovoltages as a function of light intensity and wavelength have been studied on the system of metal-amorphous InxSe1-x thin film-SnO2, where the metal electrodes of Au, Sb, Al, Ag, In, and Cu were used. For all except the Sb electrode, the system had a positive photovoltage at short wavelength and a negative one at longer wavelength. Among these electrodes, the construction having the top electrode of Sb exhibited the best photovoltaic characteristic; next was the system with the Au electrode. The photovoltage increased first linearly and then logarithmically with the photon flux. A considerable photovoltage was obtained for a contact with x=0.2. A tentative band model for a consistent explanation of the experimental data is postulated.

Masahiro Okuda

Papers

Electrical and Optical Properties of GexSe1-x Amorphous Thin Films

Transparent Conducting Al-Doped ZnO Thin Films Prepared by Pulsed Laser Deposition

Multiple Exposure Fusion for High Dynamic Range Image Acquisition

Transient currents in nematic liquid crystals.

Photovoltaic Effect Observed on the Construction of Metal-Amorphous InxSe1-x Thin Film–SnO2 System