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The ISPRS TC III Symposium

The ISPRS (International Society for Photogrammetry and Remote Sensing) Technical Commission III Symposium on "Developments, Technologies and applications in Remote Sensing" was successfully held in Beijing, China, during May 7-10, 2018. 

Dr. Bo Wu chaired a technical session "ICWG III/II- Planetary Remote Sensing and Mapping" on May 9 and attended the business meeting of ISPRS Technical Commission III. PhD student, Wai Chung Liu gave a presentation about "An Integrated Photogrammetric and Photoclinometric Approach for Pixel-Resolution 3D Modelling of Lunar Surface" in the Symposium.

 

Congratulations to YE Lei

Congratulations to YE Lei, who successfully defended his PhD dissertation on 11 January 2018. Lei's dissertation is entitled "Photogrammetric Point Clouds Generation from High-Resolution Imagery in Urban Areas".

We wish Lei the very best in his future career!

 

2017 International Symposium on Planetary Remote Sensing and Mapping

From 13 to 16 August 2017, PolyU hosted an International Symposium on Planetary Remote Sensing and Mapping as part of its 80th anniversary celebrations. Jointly organized by the International Society for Photogrammetry and Remote Sensing (ISPRS) and PolyU’s Department of Land Surveying and Geo-Informatics (LSGI) with the support of an organizing committee chaired by Dr Bo Wu, the Symposium provides an interdisciplinary forum for leading scientists and researchers from different countries to share the latest research and developments from the recent missions exploring the Moon, Mars, and other planets by NASA, ESA (European Space Agency), China, and other countries.

The opening ceremony on 14 August included speeches by Prof. Wen-zhong Shi, Head of LSGI, and Prof. Kaichang Di from the Chinese Academy of Sciences (CAS). The Dean of the Faculty of Construction and Environment (FCE), Prof. You-Lin Xu, then presented souvenirs to the 5 keynote speakers: Prof. Raymond Arvidson of Washington University in St. Louis, Prof. Nicolas Thomas of the University of Bern in Switzerland, Dr Randy Kirk of the U.S. Geological Survey, Prof. Kaichang Di of CAS, and Dr Carsten Guttler of the Max Planck Institute for Solar System Research in Germany. The topics of the keynote speeches include Mars ancient geological exploration, Mars stereoscopic imaging system, lunar landing site mapping and rover navigation, planetary mapping and planetary spatial data infrastructure, and comet exploration.

In the three-day period, the Symposium was well received by approximately 100 participants with 10 different sessions, covering various themes including planetary photogrammetry, planetary remote sensing, GIS, cartography, planetary geology and planetary exploration missions.

PhD students Yiran Wang, Yuan Li, Morgan Liu, and Postdoctoral Fellow Han Hu of LSGI gave oral presentations in the Symposium with the topics of large-scale slope analysis on Mars, rock abundance analysis on the Moon, photometric stereo shape-from-shading, and photogrammetric processing of LRO NAC images, respectively.

For more details and programme of the Conference, please visit its official website: http://event.lsgi.polyu.edu.hk/prsm2017/.

     

 

Congratulations to Lab Graduates

Congratulations to our Summer 2017 graduates: BIAN Yufan, WU Jiaqi, and ZENG Hai, who will all be receiving their MSc in Geomatics in the 23rd Congregation in November. They have all done awesome work in the lab and we wish them well in all their future endeavors!

 

Dr. Bo Wu Appointed Associate Editor of International Journal PE&RS

Dr. Bo Wu, Associate Professor of the Department of Land Surveying & Geo-Informatics (LSGI) has been appointed associate editor of the International Journal Photogrammetric Engineering & Remote Sensing (PE&RS) from May 2017.

Published since 1930s, the journal PE&RS is the flagship publication of the American Society for Photogrammetry and Remote Sensing (ASPRS). It has been ranked as one of the best journals in the field of Imaging Sciences, Photogrammetry, and Remote Sensing. According to the 2016 Thomson and Reuters JCR database, PE&RS has an Impact Factor of 2.493.

Details about the journal PE&RS can be seen from its official website: https://www.asprs.org/pers-landing-page

 

 

Video "Integrated 3D Mapping Model" Posted by Hong Kong Research Grants Council



The video "Integrated 3D Mapping Model" has been posted by Hong Kong Research Grants Council at its YouTube channel.

The Model was developed by a research team led by Dr. Bo Wu for integrated processing of multi-platform multi-sensor remote sensing datasets to improve 3D mapping accuracy and synergistic use of datasets, which contributes to China’s lunar missions and facilitates smart city development.

 

Dr. Bo Wu Serves as an IEB Member of the International Journal "The Photogrammetric Record"

Since December 2016, Dr. Bo Wu serves as an IEB (International Editorial Board) member of the International Journal "The Photogrammetric Record" as a representative in Asia.

"The Photogrammetric Record" is the world's only international journal devoted to photogrammetry, with an Impact Factor of 1.622, ranked 9 out of 24 in the field of "Imaging Science & Photographic Technology" and 14 out of 28 in the field of "Remote Sensing" according to the 2015 ISI Journal Citation Reports.

Details about the journal "The Photogrammetric Record" can be seen from here.

 

HKIREA Technology Networking Seminar

 Dr. Bo Wu was invited to give a talk at the HKIREA (Hong Kong Institule of Real Estate Administrators) Technology Networking Seminar on 13 December 2016, before the 2016 Annual Dinner of the HKIREA.

The topic of Dr. Wu's talk is "Recent Advances in 3D Mapping and City Modelling". In his talk, Dr. Wu presented the latest developments in 3D city mapping and city modelling as well as their use in real estate applications . The event attracted about 100 participants from various parties.

 

Postdoctoral Fellow Position Opening for Application

A Postdoctoral Fellow  position is opening for application at the Department of Land Surveying & Geo-Informatics of The Hong Kong Polytechnic University, starting from July 2017 or a later date. The successful candidate will work on one or more research projects related to photogrammetry, planetary mapping, or other topics.

Applicants should have a recent PhD degree in photogrammetry, computer vision, GIS, or a related field. Knowledge and experiences in digital photogrammetry and programming are desirable. Applications are accepted until the position is filled. Please send application and resume via e-mail to Dr. Bo Wu (bo.wu@polyu.edu.hk).

(in Chinese)
香港理工大學土地測量與地理資訊學系博士後研究員職位正接受申請

香港理工大學土地測量與地理資訊學系一個博士後研究員職位正接受申請,該職位將從2017年7月或稍後開始。成功的申請人將從事攝影測量、行星測繪或其他相關的研究工作。

申請人須擁有攝影測量、計算機視覺、GIS或其它相關領域的博士學位,如具有從事數字攝影測量和程序開發的知識和經驗將獲優先。有意者請通過e-mail發送個人簡歷到bo.wu@ polyu.edu.hk.

 

HKIS CPD Talk

On 29 September 2016, Dr. Bo Wu was invited to give a CPD (Continuing Professional Development) talk for HKIS (Hong Kong Institute of Surveyors) members about "3D Mapping from Multi-Platform Multi-Sensor Data in Urban Areas". In the CPD talk, Dr. Wu presented the latest developments in photogrammetry and data fusion for accurate 3D mapping in urban areas by integrating multi-platform multi-sensor remote sensing data.  Dr. Wu also shared his experience and views in developing novel 3D mapping technologies and the impact of the advancement of geomatics to smart city development.

The CPD talk attracted over 80 participants from government departments and local companies.
 

 

The 2016 ISPRS XXII Congress

The once-every-four-years congress of the International Society for Photogrammetry and Remote Sensing (ISPRS) was taken place on 12-19 July 2016 in Prague, Czech Republic. This ISPRS XXIII Congress attracted over 2,200 participants from 88 countries across the world. There were more than 1500 presentations organized in different technical and theme sessions. 77 companies exhibited their products during the Congress exhibition period. These make this ISPRS Congress a great place to share knowledge, learn, meet scientists and professionals working with geospatial technology.

 

Dr. Bo Wu chaired the technical session "II/1 - Spatio-temporal Modeling" on July 13 and the technical session "II/6 - Geovisulization and Virtual Reality" on July 15 and made two presentations in the congress period. One presentation is "Integration of GIS and BIM for Indoor Geovisual Analytics" in the technical session of Geovisulization and Virtual Reality and the other is "Shape and Albedo from Shading for Pixel-level DEM Generation from Monocular Images Constrained by Low-resolution DEM" in the technical session of Planetary Mapping.

 

PhD student, Yiran Wang made a presentation "Comparison and Co-Registration of DEMs Generated from Mars CTX and HiRISE Images" in the technical session of Planetary Mapping. Postdoctoral Fellow, Han Hu made a presentation "Texture-Aware Dense Image Matching Using Ternary Census Transfrom" in the technical session of Orientation and Surface Reconstruction.

 

The next ISPRS Congress will be held from 12 to 18 July 2016, in Nice, France.

 

International Symposium on Lunar and Planetary Science 2016

The International Symposium on Lunar and Planetary Science 2016 was held in Wuhan, China from June 9 to 10,  2016. This international symposium aims at the international academic exchange on the topics of processing, analysis, research and applications of lunar and planetary exploration data. The Symposium attracted more than 180 participants from USA, Japan, France, Italy, South Korea, China, Hong Kong and Macau to present the latest results of research in planetary science.

Dr. Bo Wu gave a presentation about "Distribution and Population Characteristics of Lunar Craters in Orientale Basin" in the Symposium.

Details about this Symposium can be found in its official website.

 

International Workshop on Advanced Geospatial Technology and Urban Applications

The International Workshop on Advanced Geospatial Technology and Urban Applications was successfully held on 26-27 May 2016 at the Chinese University of Hong Kong. This workshop brings scientists and practitioners together to share experiences, practices and new insights on latest geospatial technology application in urban areas.

Dr. Bo Wu was invited to give a presentation about "Photogrammetric Point Clouds from High Resolution Imagery in Urban Areas" in the
Workshop.

Details of the
Workshop can be found here.

 

“Novel Integrated 3D Mapping Model” Won Top Awards at the 44th International Exhibition of Inventions of Geneva

A project entitled “Novel Integrated 3D Mapping Model” undertaken by the research team leading by Dr. Bo Wu has won the “Gold Medal” and the “Special Merit Award (R. Alekseev Award) from Nizhny Novgorod State Technical University, Russia” at the 44th International Exhibition of Inventions of Geneva. The Awards presentation ceremony was held in Geneva on April 17, 2016.

This novel model successfully integrates multi-platform satellite/aerial imagery and laser scanning data for 3D mapping, greatly reduces the inconsistencies among different datasets and improves the mapping accuracy. This invention has been deployed in China's lunar missions, and can be used in topographic mapping and 3D modeling of cities for smart city development.

The International Exhibition of Inventions of Geneva is one of the most important specialized and large-scale invention exhibitions in the world. It is supported by the Swiss Federal Government, the State and the City of Geneva, as well as the World Intellectual Property Organization. The exhibition this year attracted more than 700 producers and inventors from 45 countries and over 60000 visitors during the five days exhibition from April 13 to 17, 2016.

Read the story in:

China Daily: A new dimension in the space war
星島日報: 理大研發3D測繪獲國際獎
東方日報: 理大測繪技術揚威國際
蘋果日報: 理大學者花7年「突破盲腸」 憑三維新技術奪日內瓦發明金奬
香港經濟日報: 三維測繪新技術 地理數據更精確
香港01: 理大研3D測繪新技術 模擬景觀可網上睇樓
文匯報: 理大3D測繪研塑城市風水
大公報: 理大測繪科技揚威日內瓦發明展


The research team Dr. Bo Wu, Mr. Lei Ye, Dr. Jian Guo, and Dr. Han Hu (from left to right)

 

Dr. Bo Wu Receives the 2016 Talbert Abrams Award of ASPRS

Dr. Bo Wu, associate professor of the Department of Land Surveying and Geo-Informatics, was selected as the First Honorable Mention recipient of the 2016 Talbert Abrams Award by the American Society for Photogrammetry and Remote Sensing (ASPRS) for his paper published in the society’s journal Photogrammetric Engineering & Remote Sensing (PE&RS). The Talbert Abrams Award was established in 1945 to encourage the recording of current, historical, engineering, and scientific developments in photogrammetry.

Dr. Wu’s paper entitled “Accuracy Analysis of a Dual Camera System with an Asymmetric Photogrammetric Configuration” was published in the March 2015 issue of PE&RS with coauthors Lei Ye and Yuansheng Yang. The paper describes a new asymmetric photogrammetric system combining a surveillance camera and a pan-tilt-zoom camera providing simultaneous wide field-of-view and localized high-resolution imaging capability in addition to the stereo measurement capability through the dual cameras. This asymmetric photogrammetric system provides enhanced vision capabilities that can be used in various applications such as object tracking, robotic exploration, and traffic monitoring.

A Postdoctoral Fellow of Dr Wu’s research team, Dr. Han Hu, is the second Honorable Mention recipient of the 2016 Talbert Abrams Award for his paper "Reliable spatial relationship constrained feature point matching of oblique aerial images"
published in the January 2015 issue of PE&RS.

The presentation of the award was held on 13 April 2016 at the Awards Ceremony during the ASPRS 2016 Annual Conference in Ft. Worth, Texas.

 

Visit of Prof. Christian Wöhler (TU Dortmund, Germany) for Research Collaborations

Prof. Dr. Christian Wöhler, a Professor in Computer Vision from Technical University of Dortmund, Germany, visited LSGI on 9 and 10 March 2016, for research collaborations of a project funded by Hong Kong Research Grants Council, of which Dr. Bo Wu is the PI and Prof. Wöhler servers as a Co-I.

Prof. Wöhler met with the members of the Photogrammetry and Robotic Vision Group and had fruitful discussions on various aspects. Prof. Wöhler also gave a seminar talk on “Reflectance-based Construction of High Lateral Resolution DEMs of the Lunar Surface”.

      

 

2016 Oblique Photogrammetry Workshop

On 6 January 2016, the PolyU campus held the 2016 Oblique Photogrammetry Workshop. Jointly organized by the Department of Land Surveying and Geo-Informatics (LSGI) and the Oblique Photography Technology Alliance of China, the workshop presented the latest research and developments in the principles, technologies, products, and applications of oblique photogrammetry, including a presentation by Dr Bo Wu of LSGI on automatic and reliable image matching in oblique photogrammetry. More than 150 participants from the government, industry, professional bodies, and universities in Hong Kong and mainland China attended the workshop.

An emerging technology with an important role to play in smart city development, oblique photogrammetry is a highly efficient and cost-effective way to build 3D models covering a wide range of applications. It can be used in real estate registration, land-related fields, planning, tourism, public security, disaster response, and military defense etc.

 

ISPRS Workshop on Planetary Mapping: Results from Current Missions

The ISPRS Workshop on Planetary Mapping was taken place in Berlin, Germany from September 24 to 25, 2015 under the auspices of the ISPRS Working Group IV/8: Planetary Mapping and Spatial Databases. This workshop attracted over 60 researchers from NASA, USGS, ESA, DLR and other universities to present results from recent missions to planets, satellites, and small Solar System bodies.

Dr. Bo Wu gave a presentation and chaired a session in the
Workshop.

Proceedings of the
Workshop can be found here.

 

New Research Project Funded by Research Grants Council of Hong Kong

A new research project "High-Resolution and High-Precision 3D Modeling of Lunar Topography by Integrating Multi-Image Shape-from-Shading, Image Matching and Range Data" has been funded by the Research Grants Council of Hong Kong - General Research Fund (GRF). Dr. Bo Wu serves as the Principal Investigator of the project and the project will be 3 years from 01/2016 to 01/2019.

 

NATURE INDEX: 2014 CHINA – Hong Kong

A global indicator of high-quality research, Nature Index, has referred to the work of Dr Bo Wu of the Department of Land Surveying and Geo-Informatics in a recent analysis of the research produced by the universities in Hong Kong (NATURE INDEX: 2014 CHINA – Hong Kong, Nature, 516, S64–S65, 18 December 2014). Dr Wu's landmark paper on lunar topographic models in Earth Planetary Science Letters was one of five articles published in the field of geo-sciences that accounted for 9% of the weighted fractional count (WFC) for PolyU.

The Nature Index tracks the affiliations of high-quality scientific articles published in a small group of highly selective journals that have been chosen by an independent group of working scientists. The WFC of Nature Index is a weighted measure of author contributions to articles for an institution, a city, or a country.


Dr Wu has been working on lunar topographic mapping and analysis for several years. He developed innovative lunar mapping techniques and contributed to the Chinese Chang’E-3 lunar exploration mission by providing precision lunar topographic models for the selection of the landing site. From 2013 to 2014, Dr Wu published three articles in Earth Planetary Science Letters, a prestigious international journal in geosciences and one of the 68 journals in the Nature Index database.

 

Chang'E-3 Landing Site Mapping and Analysis: Findings Published in Earth and Planetary Science Letters

In a recently paper published in Earth and Planetary Science Letters, Dr. Bo Wu and several co-authors report their findings with regards to the Chang'E-3 landing site mapping and analysis.

The paper, “Topographic Modeling and Analysis of the Landing Site of Chang’E-3 on the Moon," can be found online via ScienceDirect.

In the paper the details about
Chang'E-3 landing site characterization are presented, including topographic modeling by integrating Chang'E-2 imagery, LRO NAC imagery, and LOLA data, slope analyses at long baseline in the Sinus Iridum area and at lander footprint scale in local regions, and analysis of crater size-frequency distribution and crater morphological statistics. The reported developments and results were used for the strategic planning to identify the landing site of Chang’E-3 and made a useful contribution to the success of the Chang’E-3 mission.

Co-authors include research students
Lei Ye and Si Qiao, and partners from China Academy of Space Technology including Fei Li, Jun Huang, Xueying Wu and He Zhang. Dr. He Zhang is the deputy chief designer of the Chang'E-3 probe.

Earth and Planetary Science Letters is the top international journal in geosciences, with an impact factor of 4.724 according to the 2013 Journal Citation Report by Thomson Reuters.

 

LSGI's innovative lunar mapping techniques on show in the "Exhibition on China's Lunar Exploration Programme" at Science Museum

An exhibition on China's Lunar Exploration Programme was launched on 21 July 2014 at the Hong Kong Science Museum. The exhibition features specially designed interactive exhibits, including the lunar lander for Chang'E-3, the Yutu Lunar Rover, Long March rockets, simulations of the launch site and the lunar rover. PolyU's participation in the space technology used for the Chang'E-3 mission, such as the innovative lunar mapping techniques and products developed by Dr Bo Wu, Assistant Professor of the Department of Land Surveying and Geo-Informatics (LSGI), and his team are also showcased in the exhibition.

Funded by the China Academy of Space Technology, the developed lunar mapping techniques and
generated high-precision lunar topographic models were deployed in the topographical analysis of the Chang’E-3 landing area and the selection of the landing site, ultimately contributing to the successful landing of Chang'E-3 on the moon last December.

Organized by the Home Affairs Bureau and the China National Space Administration, the exhibition is open to the public and runs until 24 August 2014.

Read the story in:
GoVHK: "Exhibition on China's Lunar Exploration Programme" opens today at Science Museum

香港商報: 玉兔號月球車模型亮相科學館

新华网: "九天揽月——中国探月工程展"香港开展

人民日报: 中国探月工程实施十年来第一次主题展览活动 “九天揽月” 亮相香港

 

ISPRS Technical Commission IV Symposium 2014

The ISPRS Technical Commission IV Symposium 2014: "Geo-spatial databases and location based services" was held in Suzhou, China from May 14 to 16,  2014. This Symposium attracted more than 200 participants from different countries and regions to attend. The themes of the Symposium include: Methods for the Update and Verification of Geospatial Databases, Global Status of Mapping and Geospatial Database Updating, Global DEM Interoperability, Geospatial Data Infrastructure,  Web and Cloud Based Geospatial Services and Applications, Sensor Web and Internet of Things, 3D Indoor Modeling and Navigation, Planetary Mapping and Spatial Databases, Computing Optimization for Spatial Databases and Location based Services, Global Land Cover Mapping and Services, LBS and Ubiquitous Cartography.

 

Dr. Bo Wu gave a presentation about "Multi-source data integration for lunar topographic mapping and analysis" in the Planetary Mapping session of the Symposium.

 

Details about this Symposium can be found in its official website.

 

Dr. Bo Wu Receives the 2014 John I. Davidson President's Award of ASPRS

Dr. Bo Wu, assistant professor of the Department of Land Surveying and Geo-Informatics, was selected as the third place recipients of the 2014 John I. Davidson President's Award for Practical Papers by the American Society for Photogrammetry and Remote Sensing (ASPRS). The John I. Davidson Award was established in 1979 to encourage and commend individuals who publish papers of practical or applied value in photogrammetric engineering & remote sensing.

Dr. Wu’s paper entitled “A Flexible Method for Zoom Lens Calibration and Modeling Using a Planar Checkerboard” was published in the June 2013 issue of the society’s journal Photogrammetric Engineering & Remote Sensing (PE&RS) with co-authors Han Hu, Qing Zhu, and Yeting Zhang. The paper describes a zoom lens calibration and modeling method offering better flexibility and feasibility, which facilitates the use of zoom-lens camera systems in various applications such as robotic exploration, hazard monitoring, traffic monitoring, and security surveillance.

The presentation of the award will take place on 25 March 2014 at the Awards Luncheon during the ASPRS 2014 Annual Conference in Louisville, Kentucky. The award consists of a certificate and cash award. Former recipients of the award include, for example, NASA's scientists at Goddard Space Flight Center.

Founded in 1934, the American Society for Photogrammetry and Remote Sensing (ASPRS) is a scientific association serving over 7,000 professional members around the world. The mission of ASPRS is to advance knowledge and improve understanding of mapping sciences to promote the responsible applications of photogrammetry, remote sensing, geographic information systems (GIS), and supporting technologies. The journal PE&RS is the flagship publication of ASPRS. It has been ranked as one of the best journals in the field of Imaging Sciences, Photogrammetry, and Remote Sensing.

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