Synthetic aperture radar （SAR） provides a large amount of image data for the observation and research of oceanic eddies. The use of SAR images to automatically depict the shape of eddies and extract the eddy informa...Synthetic aperture radar （SAR） provides a large amount of image data for the observation and research of oceanic eddies. The use of SAR images to automatically depict the shape of eddies and extract the eddy information is of great significance to the study of the oceanic eddies and the application of SAR eddy images. In this paper, a method of automatic shape depiction and information extraction for oceanic eddies in SAR images is proposed, which is for the research of spiral eddies. Firstly, the skeleton image is got by the skeletonization of SAR image. Secondly, the logarithmic spirals detected in the skeleton image are drawn on the SAR image to depict the shape of oceanic eddies. Finally, the eddy information is extracted based on the results of shape depiction. The sentinel 1 SAR eddy images in the Black Sea area were used for the experiment in this paper. The experimental results show that the proposed method can automatically depict the shape of eddies and extract the eddy information. The shape depiction results are consistent with the actual shape of the eddies, and the extracted eddy information is consistent with the reference information extracted by manual operation. As a result, the validity of the method is verified.展开更多
The Editor’s Note:Recently a book titled A Depiction of Trialsof Strength Between China and the US was published in Beijing.It isedited and mainly written by Professor Chen Feng of China Instituteof Contemporary Inte...The Editor’s Note:Recently a book titled A Depiction of Trialsof Strength Between China and the US was published in Beijing.It isedited and mainly written by Professor Chen Feng of China Instituteof Contemporary International Relations.Four young researcher ofthe same institute also participated in the writing.After the book waspublished,it has evoked strong repercussions both at home andabroad.Its first edition has already been sold out and the second edi-tion has rushed through print.Foreign press and news agencies alsopay much attention to the book and have made quite a few comments.Some foreign experts and scholars have asked the publishing house orthe authors to send them a copy of the book.Some overseas publish-ing house have even proposed to purchase the book’s copyright.A-gainst this backdrop,members of the editorial department of this jour-nal has had a special interview with Professor Chen Feng to ask abouthis motive to write the book and some other related matters.Below isa brief record of the interview.展开更多
For the first time in history, the current state and latest developments of China’s S&T endeavors become the keynote of one of the world-renowned scientific journals,"Science," published by the American...For the first time in history, the current state and latest developments of China’s S&T endeavors become the keynote of one of the world-renowned scientific journals,"Science," published by the American Association for Advancement of Science. The prestigious journal "Science,"is one of most influential scientific periodicals in the world today.Under the banner headline of "Science in Asia: China" at a special issue coming out recently, it recounts the increas-展开更多
Wang Weifan is a member of the standing committee of the China Christian Council, and a Christian theology education professor. He recently discovered that several Eastern Han Dynasty museum exhibits in the Jiangsu Xu...Wang Weifan is a member of the standing committee of the China Christian Council, and a Christian theology education professor. He recently discovered that several Eastern Han Dynasty museum exhibits in the Jiangsu Xuzhou Han Dynasty Stone Carving Museum include depictions of the bible and of展开更多
How did you come to participate in this project？ I was informed about the project in February 2011 when the China Artists Association organized a competitive bidding among artists. There were 10 designs that the judg...How did you come to participate in this project？ I was informed about the project in February 2011 when the China Artists Association organized a competitive bidding among artists. There were 10 designs that the judges looked at, and our design won by a unanimous vote. After that, it still had to get official approval from the African Union and China. It took me three months to design and make the sculpture with my postgraduate students. During that time, many people contributed, I invited art masters and professors in the field to be counselors for our team. Many of them climbed on lad- ders to make adjustments to the piece with their own hands.展开更多
文摘Synthetic aperture radar （SAR） provides a large amount of image data for the observation and research of oceanic eddies. The use of SAR images to automatically depict the shape of eddies and extract the eddy information is of great significance to the study of the oceanic eddies and the application of SAR eddy images. In this paper, a method of automatic shape depiction and information extraction for oceanic eddies in SAR images is proposed, which is for the research of spiral eddies. Firstly, the skeleton image is got by the skeletonization of SAR image. Secondly, the logarithmic spirals detected in the skeleton image are drawn on the SAR image to depict the shape of oceanic eddies. Finally, the eddy information is extracted based on the results of shape depiction. The sentinel 1 SAR eddy images in the Black Sea area were used for the experiment in this paper. The experimental results show that the proposed method can automatically depict the shape of eddies and extract the eddy information. The shape depiction results are consistent with the actual shape of the eddies, and the extracted eddy information is consistent with the reference information extracted by manual operation. As a result, the validity of the method is verified.
文摘The Editor’s Note:Recently a book titled A Depiction of Trialsof Strength Between China and the US was published in Beijing.It isedited and mainly written by Professor Chen Feng of China Instituteof Contemporary International Relations.Four young researcher ofthe same institute also participated in the writing.After the book waspublished,it has evoked strong repercussions both at home andabroad.Its first edition has already been sold out and the second edi-tion has rushed through print.Foreign press and news agencies alsopay much attention to the book and have made quite a few comments.Some foreign experts and scholars have asked the publishing house orthe authors to send them a copy of the book.Some overseas publish-ing house have even proposed to purchase the book’s copyright.A-gainst this backdrop,members of the editorial department of this jour-nal has had a special interview with Professor Chen Feng to ask abouthis motive to write the book and some other related matters.Below isa brief record of the interview.
文摘For the first time in history, the current state and latest developments of China’s S&T endeavors become the keynote of one of the world-renowned scientific journals,"Science," published by the American Association for Advancement of Science. The prestigious journal "Science,"is one of most influential scientific periodicals in the world today.Under the banner headline of "Science in Asia: China" at a special issue coming out recently, it recounts the increas-
文摘Wang Weifan is a member of the standing committee of the China Christian Council, and a Christian theology education professor. He recently discovered that several Eastern Han Dynasty museum exhibits in the Jiangsu Xuzhou Han Dynasty Stone Carving Museum include depictions of the bible and of
文摘How did you come to participate in this project？ I was informed about the project in February 2011 when the China Artists Association organized a competitive bidding among artists. There were 10 designs that the judges looked at, and our design won by a unanimous vote. After that, it still had to get official approval from the African Union and China. It took me three months to design and make the sculpture with my postgraduate students. During that time, many people contributed, I invited art masters and professors in the field to be counselors for our team. Many of them climbed on lad- ders to make adjustments to the piece with their own hands.
