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Research on the effect of image size on real-time performance of robot vision positioning
Springer Science and Business Media LLC - Tập 2018 - Trang 1-11 - 2018
In order to improve the real-time performance of visual positioning of the indoor mobile robot, the researchers found that the shape and size of the positioned image have a great influence on the real-time performance of the positioning calculation. In order to verify the conclusion and find the appropriate image shape and size to meet the robot’s visual positioning requirements, this paper adopts......
Retraction Note: A method for spectral image registration based on feature maximum submatrix
Springer Science and Business Media LLC - Tập 2022 - Trang 1-1 - 2022
Parity Bit Replenishment for JPEG 2000-Based Video Streaming
Springer Science and Business Media LLC - Tập 2009 - Trang 1-18 - 2009
This paper envisions coding with side information to design a highly scalable video codec. To achieve fine-grained scalability in terms of resolution, quality, and spatial access as well as temporal access to individual frames, the JPEG 2000 coding algorithm has been considered as the reference algorithm to encode INTRA information, and coding with side information has been envisioned to refresh t......
Image analysis using new set of separable two-dimensional discrete orthogonal moments based on Racah polynomials
Springer Science and Business Media LLC - Tập 2017 - Trang 1-17 - 2017
In this paper, we propose three new separable two-dimensional discrete orthogonal moments baptized: RTM (Racah-Tchebichef moments), RKM (Racah-Krawtchouk moments), and RdHM (Racah-dual Hahn moments). We present a comparative study between our proposed separable two-dimensional discrete orthogonal moments and the classical ones, in terms of gray-level image reconstruction accuracy, including noisy ......
Real-time CUDA-based stereo matching using Cyclops2 algorithm
Springer Science and Business Media LLC - Tập 2018 - Trang 1-15 - 2018
This paper presents a novel stereo matching algorithm Cyclops2. The algorithm produces a disparity image, provided two rectified grayscale images. The matching is based on the concept of minimising a weight function calculated using the absolute difference of pixel intensities. We present three simple and easily parallelizable weight functions. Each presented function gives a different trade-off b......
Improved CT algorithm based on target block division and feature points matching
Springer Science and Business Media LLC - Tập 2018 - Trang 1-14 - 2018
For compressive tracking (CT) algorithm, it is vulnerable to the occlusion, when tracking targets. An improved CT algorithm based on target division and feature point matching is proposed in this paper, which can determine different target tracking states by the method of target division. When the target is in normal tracking or partial occlusion, the target is located accurately by the sub-block ......
Segmentation-free optical character recognition for printed Urdu text
Springer Science and Business Media LLC - Tập 2017 - Trang 1-18 - 2017
This paper presents a segmentation-free optical character recognition system for printed Urdu Nastaliq font using ligatures as units of recognition. The proposed technique relies on statistical features and employs Hidden Markov Models for classification. A total of 1525 unique high-frequency Urdu ligatures from the standard Urdu Printed Text Images (UPTI) database are considered in our study. Lig......
Pansharpening based on convolutional autoencoder and multi-scale guided filter
Springer Science and Business Media LLC - Tập 2021 - Trang 1-20 - 2021
In this paper, we propose a pansharpening method based on a convolutional autoencoder. The convolutional autoencoder is a sort of convolutional neural network (CNN) and objective to scale down the input dimension and typify image features with high exactness. First, the autoencoder network is trained to reduce the difference between the degraded panchromatic image patches and reconstruction output......
Non-destructive inspection on anchorage defect of hollow grouted rock bolt using wavelet transform analysis
Springer Science and Business Media LLC - Tập 2018 - Trang 1-12 - 2018
Hollow grouted rock bolts are widely used in deep soft rock roadways. The density of grout has a significant influence on the anchorage quality. However, there is still a lack of effective methods to detect the grouting quality fast, accurately, and extensively. Based on the wave velocity and the law of stress wave transmission and reflection in the impedance mismatch, non-destructive experiment f......
Simplified spiking neural network architecture and STDP learning algorithm applied to image classification
Springer Science and Business Media LLC - Tập 2015 - Trang 1-11 - 2015
Spiking neural networks (SNN) have gained popularity in embedded applications such as robotics and computer vision. The main advantages of SNN are the temporal plasticity, ease of use in neural interface circuits and reduced computation complexity. SNN have been successfully used for image classification. They provide a model for the mammalian visual cortex, image segmentation and pattern recognit......
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