نتایج جستجو برای: pixel

تعداد نتایج: 45970  

Different methods have been proposed to increase the image spatial resolution by mixed pixels decomposition. These methods can be divided into two groups. Some research have been attempted to obtain percentages of sub pixels and the other try to obtain their locations. These methods and their problems will be examined in this study. Common methods are reviewed with more emphasis. Finally, a new...

2000
Z. Shen D. A. Furst S. Connor J. Hsu R. G. Stewart P. J. Green S. Pearson C. W. Tang S. Van Slyke F. Chen J. C. Sturm

A polysilicon transistor based active matrix organic light emitting diode (AMOLED) pixel with high pixel to pixel luminance uniformity is reported. The new pixel powers the OLEDs with small constant currents to ensure consistent brightness and extended life. Excellent pixel to pixel current drive uniformity is obtained despite the threshold voltage variation inherent in polysilicon transistors....

2013
Wang Jianwei

An algorithm of the color image noise removal algorithm is put forward based on the pixel operations. The idea of the algorithm is to read every pixel in a set order and determine whether the pixel level is consistent with the probability density function of impulse noise or not. If it is similar to noise pixel, the number of impulse noise in a certain mask is counted. If the number is less tha...

This paper presents a new automatic image enhancement method by modifying the gamma value of its individual pixels. Most of existing gamma correction methods apply a uniform gamma value across the image. Considering the fact that gamma variation for a single image is actually nonlinear, the proposed method locally estimates the gamma values in an image using support vector machine. First, a dat...

2010
Michael Burch Michael Raschke Daniel Weiskopf

We introduce Indented Pixel Tree Plots (IPTPs): a novel pixel-based visualization technique for depicting large hierarchies. It is inspired by the visual metaphor of indented outlines, omnipresent in graphical file browsers and pretty printing of source code. Inner vertices are represented as vertically arranged lines and leaf groups as horizontally arranged lines. A recursive layout algorithm ...

2017
Nal Kalchbrenner Aäron van den Oord Karen Simonyan Ivo Danihelka Oriol Vinyals Alex Graves Koray Kavukcuoglu

We propose a probabilistic video model, the Video Pixel Network (VPN), that estimates the discrete joint distribution of the raw pixel values in a video. The model and the neural architecture reflect the time, space and color structure of video tensors and encode it as a fourdimensional dependency chain. The VPN approaches the best possible performance on the Moving MNIST benchmark, a leap over...

2005
Tobias Isenberg M. Sheelagh T. Carpendale Mario Costa Sousa

The majority of the current advances in computer graphic rendering strive for fast and realistic creation of pixel images, e. g., for the film and gaming industry. This development, unfortunately, leads to various problems due to limitations of pixel images, in particular, when they are not used for screen viewing. Thus, in this paper we argue for the placement of greater emphasis on the genera...

1999
John Richardson

The ATLAS experiment at the Large Hadron Collider will incorporate discrete, high-resolution tracking sub-systems in the form of segmented silicon detectors with 40MHz radiation-hard readout electronics. In the region closest to the pp interaction point, the thin silicon tiles will be segmented into a pixel geometry providing two-dimensional space-point information. The current status of the AT...

Journal: :CoRR 2017
Sergio Guadarrama Ryan Dahl David Bieber Mohammad Norouzi Jonathon Shlens Kevin Murphy

We propose a novel approach to automatically produce multiple colorized versions of a grayscale image. Our method results from the observation that the task of automated colorization is relatively easy given a low-resolution version of the color image. We first train a conditional PixelCNN to generate a low resolution color for a given grayscale image. Then, given the generated low-resolution c...

2016
Yiwei Zhang Matthew P Edgar Baoqing Sun Neal Radwell Graham M Gibson Miles J Padgett

Photometric stereo is an established three-dimensional (3D) imaging technique for estimating surface shape and reflectivity using multiple images of a scene taken from the same viewpoint but subject to different illumination directions. Importantly, this technique requires the scene to remain static during image acquisition otherwise pixel-matching errors can introduce significant errors in the...

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