Articles with "sub pixel" as a keyword



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Super-resolution compressed sensing imaging algorithm based on sub-pixel shift

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Published in 2018 at "Cluster Computing"

DOI: 10.1007/s10586-018-1839-2

Abstract: At present, some digital signal processing methods have attracted more and more attention in improving the resolution of images. Sub-pixel shift has been widely applied in improving the resolution of compressed sensing imaging system. The… read more here.

Keywords: resolution; system; sub pixel; compressed sensing ... See more keywords
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High accuracy block-matching sub-pixel motion estimation through detection of error surface minima

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Published in 2017 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-017-4497-0

Abstract: The present paper focuses on high-accuracy block-based sub-pixel motion estimation utilizing a straightforward error minimization approach. In particular, the mathematics of bilinear interpolation are utilized for the selection of the candidate motion vectors that minimize… read more here.

Keywords: motion; sub pixel; pixel motion; accuracy ... See more keywords

Sub-pixel image registration on an embedded Nanosatellite Platform

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Published in 2019 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2019.05.022

Abstract: Abstract CubeSats are limited in their physical size, which limits the physical size of payloads they can carry, thereby limiting the image quality of CubeSat Earth Observation missions. Algorithms exist that combine partially overlapping images… read more here.

Keywords: sub pixel; platform; image; pixel image ... See more keywords
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A sub-pixel motion estimation skipping method for fast HEVC encoding

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Published in 2019 at "ICT Express"

DOI: 10.1016/j.icte.2018.08.003

Abstract: Abstract While motion estimation (ME) efficiently compresses video data by reducing temporal redundancy between frames, it does so at the cost of computational complexity. In particular, the complexity of sub-pixel ME (SME) greatly limits fast… read more here.

Keywords: sub pixel; pixel motion; method; motion estimation ... See more keywords
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Sub-pixel mapping of alunite and jarosite using ASTER data; a case study from north of Semnan, north central Iran

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Published in 2017 at "Ore Geology Reviews"

DOI: 10.1016/j.oregeorev.2016.07.014

Abstract: Abstract A widespread series of volcanic rocks and younger intrusive bodies are exposed in the north and northeastern Semnan, north-central Iran. They show an intermediate to felsic composition which have undergone various types of alteration… read more here.

Keywords: aster data; pixel mapping; sub pixel; alunite jarosite ... See more keywords
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Sub-pixel Tomographic Methods for Characterizing the Solid Architecture of Foams

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Published in 2022 at "Microscopy and Microanalysis"

DOI: 10.1017/s1431927622000447

Abstract: Abstract Three independent analysis methods were developed to investigate the distribution of solid mass in foams analyzed by X-ray tomography with effective pixel sizes larger than the thickness of the solid network (sub-pixel conditions). Validation… read more here.

Keywords: sub pixel; mass struts; high resolution; pixel tomographic ... See more keywords
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Sub-pixel vs. super-pixel-based greenspace mapping along the urban–rural gradient using high spatial resolution Gaofen-2 satellite imagery: a case study of Haidian District, Beijing, China

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Published in 2017 at "International Journal of Remote Sensing"

DOI: 10.1080/01431161.2017.1354266

Abstract: ABSTRACT Greenspace in urban areas is closely related to urban ecosystems, economy, culture, and society. Recently, rapid urban development and expansion are always dominated by a series of human–environment interactions, which can lead to various… read more here.

Keywords: sub pixel; pixel method; pixel; spatial resolution ... See more keywords
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A Low-Rank and Sparse Decomposition-Based Method of Improving the Accuracy of Sub-Pixel Grayscale Centroid Extraction for Spot Images

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Published in 2020 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2020.2974725

Abstract: In order to improve the accuracy of sub-pixel grayscale centroid extraction for noise-containing spot images, an image denoising method based on low-rank and sparse decomposition (LRSD) was proposed in this paper. Relative total variation (RTV)… read more here.

Keywords: sub pixel; accuracy; method; accuracy sub ... See more keywords
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A Sub-Pixel Gradient Compression Algorithm for Text Image Display on a Smart Device

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Published in 2018 at "IEEE Transactions on Consumer Electronics"

DOI: 10.1109/tce.2018.2843297

Abstract: A smart device such as a television, tablet, and smartphone, often displays a compound image consisting of various types of sub-images, including texts and pictures. A text image displayed on a smart device is composed… read more here.

Keywords: compression; image; sub pixel; smart device ... See more keywords
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Sub-Pixel Mapping of Spectral Imagery Based on Deviation Information Measurement

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Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2023.3236318

Abstract: Sub-pixel mapping (SPM) technology can analyze mixed pixels in spectral image and realize the transformation from abundance images to a fine sub-pixel classification image. Since the SPM belongs to an ill-posed issue, deviation information (DI)… read more here.

Keywords: abundance images; abundance; sub pixel; deviation ... See more keywords
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Sub-pixel Position Estimation Algorithm Based on Gaussian Fitting and Sampling Theorem Interpolation for Wafer Alignment

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Published in 2021 at "Applied Optics"

DOI: 10.1364/ao.437440

Abstract: Wafer alignment is the core technique of lithographic tools. Image-processing-based wafer alignment techniques are commonly used in lithographic tools. An alignment algorithm is used to analyze the alignment mark image for obtaining the mark position.… read more here.

Keywords: algorithm; sub pixel; gaussian fitting; pixel position ... See more keywords