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A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloud sequence

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5, Pages 422-434 doi: 10.1631/FITEE.1500316

Abstract: To speed up the reconstruction of 3D dynamic scenes in an ordinary hardware platform, we propose an efficient framework to reconstruct 3D dynamic objects using a multiscale-contour-based interpolation from multi-view videos. Our framework takes full advantage of spatio-temporal-contour consistency. It exploits the property to interpolate single contours, two neighboring contours which belong to the same model, and two contours which belong to the same view at different times, corresponding to point-, contour-, and model-level interpolations, respectively. The framework formulates the interpolation of two models as point cloud transport rather than non-rigid surface deformation. Our framework speeds up the reconstruction of a dynamic scene while improving the accuracy of point-pairing which is used to perform the interpolation. We obtain a higher frame rate, spatio-temporal-coherence, and a quasi-dense point cloud sequence with color information. Experiments with real data were conducted to test the efficiency of the framework.

Keywords： Multi-view video Free-viewpoint video Point-pair Multiscale-contour-based interpolation Spatio-temporal-contour

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Lobectomy by video-assisted thoracoscopic surgery (VATS) for early stage of non-small cell lung cancer

Min ZHU, Xiang-Ning FU, Xiao-Ping CHEN

Frontiers of Medicine 2011, Volume 5, Issue 1, Pages 53-60 doi: 10.1007/s11684-011-0121-2

Abstract:

Video-assisted thoracoscopic surgery (VATS) provides a new approach for treating early-stage lung

Keywords： non-small cell lung cancer video-assisted thoracoscopic surgery lobectomy

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A reversibility-gain model for integer Karhunen-Loève transform design in video coding

Xing-guo ZHU,Lu YU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10, Pages 883-891 doi: 10.1631/FITEE.1500071

Abstract: In this paper, a joint reversibility-gain (R-G) model is proposed for integer-KLT design in video coding‘gain’ means transform coding gain (TCG), which is a widely used criterion for transform design in video

Keywords： Integer transform Karhunen-Loè ve transform (KLT) Integer-KLT Transform coding Video coding

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Image analyses for video-based remote structure vibration monitoring system

Yang YANG,Xiong (Bill) YU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 12-21 doi: 10.1007/s11709-016-0313-6

Abstract: Video-based vibration measurement is a cost-effective way for remote monitoring the health conditionsBesides, video-based system is global measurement.The technical basis of video-based remote vibration measurement system is digital image analysis.further refinement of system hardware and image processing software, it will be developed into a remote video

Keywords： structure health monitoring velocity estimation frame difference PIV optical-flow method

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Scheme and Techniques for Hierarchical Oranization of Video

Zhang Yujin,Lu Haibin

Strategic Study of CAE 2000, Volume 2, Issue 3, Pages 18-22

Abstract: Traditional video representation is just a time sequence——video stream, thus it is difficultfor computer to recognize or perceive video in the content level.To efficiently access and utilize video information, a suitable organization of video data is criticalThis paper proposes a video organization scheme, which arranges video into four layers： video programfor non-linear browsing and content-based retrieval of video data.

Keywords： video organization browsing shot episode key frame representative frame

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Self-generation of machining precision and its realization in lapping of super precision solid balls

ZHANG Bopeng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 348-353 doi: 10.1007/s11465-008-0065-7

Abstract: From the viewpoint of self-organization, there are three types of systems including system 1 with the

Keywords： self-generation necessary self-regulation capability viewpoint Necessary

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Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1, Pages 58-65 doi: 10.1007/s11705-017-1610-x

Abstract: The advent of synthetic biology has ushered in new applications of cell-free transcription-translationThese cell-free systems are reconstituted using cellular proteins, and are amenable to modular controlHere, we discuss the historical advancement of cell-free systems, as well as their new applications inFinally, we present our vision on the future direction of cell-free synthetic biology.

Keywords： cell-free system application

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Shot classification and replay detection for sports video summarization Research Article

Ali JAVED, Amen ALI KHAN,ali.javed@uettaxila.edu.pk

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 5, Pages 790-800 doi: 10.1631/FITEE.2000414

Abstract: Accurate is mandatory to better structure the input video for further processing, i.e., key events orFor this purpose, we propose local octa-pattern features to represent video frames and train the for

Keywords： Lightweight convolutional neural network Local octa-patterns Shot classification Replay detection Video

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Long-term prediction for hierarchical-B-picture-based coding of video with repeated shots None

Xu-guang ZUO, Lu YU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 3, Pages 459-470 doi: 10.1631/FITEE.1601552

Abstract: The latest video coding standard High Efficiency Video Coding (HEVC) can achieve much higher coding efficiencythan previous video coding standards.long-term prediction (LTP) scheme to use the long-term temporal correlation between correlated shots in a videoThe long-term reference (LTR) frames of a source video are chosen by clustering similar shots and extractingAn adaptive quantization method is further designed for LTR frames to improve the overall video coding

Keywords： High Efficiency Video Coding (HEVC) Long-term temporal correlation Long-term prediction Hierarchical

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Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1879-1894 doi: 10.1007/s11705-023-2354-4

Abstract: To address these concerns, the halogen-free cycloaddition of CO₂ with epoxides has alwaysIn this review, we systematically discussed the halogen-free catalysis for cycloaddition of CO_{2freeSpecially, metal oxides as the potential halogen-free catalysts are highlighted due to their flexible}

Keywords： carbon dioxide halogen-free catalysis cyclic carbonate mechanistic insight

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Hollow carbon spheres and their noble metal-free hybrids in catalysis

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6, Pages 1380-1407 doi: 10.1007/s11705-021-2097-z

Abstract: Herein, we overview hollow carbon sphere-based materials and their noble metal-free hybrids in catalysiscontrolling pore structure and surface morphology, and then heterogeneous doping as well as their metal-free

Keywords： hollow carbon spheres functionalization noble metal-free catalysis

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Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1106-7

Abstract:

PFRs were produced on biochar during Cr(VI) decontamination.

PFRs formation on biochar was owing to the oxidization of phenolic-OH by Cr(VI).

Appearance of excessive oxidant led to the consumption of PFRs on biochar.

Biochar charred at high temperature possessed great performance to Cr(VI) removal.

Keywords： Biochar Persistent free radicals Phenolic hydroxyl groups Cr(VI) reduction

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Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6, Pages 1514-1523 doi: 10.1007/s11705-021-2092-4

Abstract: A base-free catalytic system for the aerobic oxidation of 5-hydroxymethyl-2-furfural was exploited byThe Pt nanocatalysts were well-dispersed and highly active for the base-free oxidation of 5-hydroxymethyl

Keywords： aerobic oxidation base-free 5-hydroxymethyl-2-furfural Pt nanoparticle thermoresponsive block copolymer

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High-resolution spectral video acquisition Review

Lin-sen CHEN, Tao YUE, Xun CAO, Zhan MA, David J. BRADY

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9, Pages 1250-1260 doi: 10.1631/FITEE.1700098

Abstract: with the rapid development in computational photographytheory and semiconductor techniques, spectral video

Keywords： Multispectral/hyperspectral video acquisition Snapshot Under-sampling and reconstruction

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Avideo conferencing system based on SDN-enabled SVCmulticast Project supported by the National Natural Science Foundation of China (Nos. 61573329 and 61233003), the Youth Innovation Promotion Association CAS, and the Fundamental Research Funds for the Central Universities, China Article

En-zhong YANG,Lin-kai ZHANG,Zhen YAO,Jian YANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 7, Pages 672-681 doi: 10.1631/FITEE.1601087

Abstract: Current typical video conferencing connection is bridged by a multipoint control unit (MCU), which mayAdditionally, a video encoding method called scalable video coding (SVC) can also help.In this paper, we propose a video conferencing architecture based on SDN-enabled SVC multicasting, whichThe SDN controller is responsible for dynamically managing and controlling the layers of a video streamExperimental results show that our system can not only provide a flexible and controllable video delivery

Keywords： Software-defined networking (SDN) Multicast Scalable video coding Video conferencing system