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VOA科学技术2022--科学家研发针对海豹的面部识别技术

时间:2022-12-08 01:57:45

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Scientists Use Facial Recognition1 to Study Seals

Scientists believe they have found a new use for facial recognition technology: saving large ocean animals known as seals.

Researchers at Colgate University in the U.S. state of New York have developed SealNet. The system is a database2 of seal faces created by taking pictures of many harbor seals in Maine's Casco Bay.

The research team found the tool's accuracy in identifying the mammals was close to 100 percent.

The researchers are working on increasing the size of their database to make it available to other scientists, said Krista Ingram. She is a biology professor at Colgate and a team member.

Increasing the database to include rare species3 such as the Mediterranean4 monk5 seal and Hawaiian monk seal could help efforts to save those species, she said.

Creating a list of seal faces and using machine learning to identify them can also help scientists know where in the ocean seals are, Ingram said.

She said, "For...marine6 mammals that move around a lot and are hard to photograph in the water, we need to be able to identify individuals."

SealNet is designed to identify the face in a picture. It recognizes the seal's face based on information related to the eyes and nose shape, as it would a human. A similar tool called PrimNet, that is for use on primates8, had been used on seals earlier, but SealNet performed better, the Colgate researchers said.

The Colgate team published its findings last spring in Ecology and Evolution. They processed more than 1,700 images of more than 400 individual seals, the paper said.

The paper stated that the SealNet software could be a valuable tool in the developing field of "conservation technology" - technology aimed at saving and protecting wild animals.

Harbor seals are a conservation success story in the U.S. More than 100 years ago, the animals were once widely killed. But the Marine Mammal Protection Act, which turned 50 in October, gave them new protections — and populations began to come back.

Seals and other ocean mammals have long been studied using satellite technology. Using artificial intelligence to study them is a way to bring conservation into the 21st century, said Jason Holmberg of Wild Me. The Oregon-based company works to bring machine learning to biologists. Wild Me is developing a possible partnership9 with SealNet.

Harbor seals are now common in the waters off the coast of the Northeastern United States. Other seal species, however, remain at risk. The Mediterranean monk seal is thought to be the world's most at-risk seal with only a few hundred animals remaining.

Facial recognition technology could provide valuable data, said Michelle Berger, an associate scientist at the Shaw Institute in Maine. Berger was not involved in the SealNet research.

"Once the system is perfected I can picture lots of interesting" environmental uses for it, Berger said. "If they could recognize seals, and recognize them from year to year, that would give us lots of information about movement, how much they move from site to site."

The Colgate researchers are also working with FruitPunch, a Dutch artificial intelligence company, to improve some parts of SealNet to help more scientists use it, said Tjomme Dooper, FruitPunch's head of partnerships10 and growth.

That would open new opportunities to study the animals and help protect them, he said.

"What this does is help the biologists study the behavior of seals, and also population dynamics11," Dooper said. He added that harbor seals give important information about the environment around them.

Words in This Story

species – n. biology : a group of animals or plants that are similar and can produce young animals or plants

accuracy –n. freedom from error or mistakes

primate7 – n. any member of the group of animals that includes human beings, apes, and monkeys

conservation – n. the protection of animals, plants, and natural resources

artificial intelligence –n. an area of computer science that deals with giving machines the ability to seem like they have human intelligence

dynamics – n. the way that two or more people or things behave with each other because of a particular situation


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1 recognition zUYxm     
n.承认,认可,认出,认识
参考例句:
  • The place has changed beyond recognition.这地方变得认不出来了。
  • A sudden smile of recognition flashed across his face.他脸上掠过一丝笑意,表示认识对方。
2 database mvWzUj     
n.数据库 (=databank)
参考例句:
  • I discovered some new information in the database.我在资料库里发现了一些新信息。
  • We planned to build an online database.我们计划建一个联机数据库。
3 species FTizN     
n.物种,种群
参考例句:
  • Are we the only thinking species in the whole of creation?我们是万物中惟一有思想的物种吗?
  • This species of bird now exists only in Africa.这种鸟现在只存在于非洲。
4 Mediterranean ezuzT     
adj.地中海的;地中海沿岸的
参考例句:
  • The houses are Mediterranean in character.这些房子都属地中海风格。
  • Gibraltar is the key to the Mediterranean.直布罗陀是地中海的要冲。
5 monk 5EDx8     
n.和尚,僧侣,修道士
参考例句:
  • The man was a monk from Emei Mountain.那人是峨眉山下来的和尚。
  • Buddhist monk sat with folded palms.和尚合掌打坐。
6 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
7 primate A1YzI     
n.灵长类(目)动物,首席主教;adj.首要的
参考例句:
  • 14 percent of primate species are highly endangered.14%的灵长类物种处于高度濒危状态。
  • The woolly spider monkey is the largest primate in the Americas.绒毛蛛猴是美洲最大的灵长类动物。
8 primates 9536f12c27d026e37c108bd6fc53dbba     
primate的复数
参考例句:
  • Primates are alert, inquisitive animals. 灵长目动物是机灵、好奇的动物。
  • Consciousness or cerebration has been said to have emerged in the evolution of higher primates. 据说意识或思考在较高级灵长类的进化中已出现。
9 partnership NmfzPy     
n.合作关系,伙伴关系
参考例句:
  • The company has gone into partnership with Swiss Bank Corporation.这家公司已经和瑞士银行公司建立合作关系。
  • Martin has taken him into general partnership in his company.马丁已让他成为公司的普通合伙人。
10 partnerships ce2e6aff420d72bbf56e8077be344bc9     
n.伙伴关系( partnership的名词复数 );合伙人身份;合作关系
参考例句:
  • Partnerships suffer another major disadvantage: decision-making is shared. 合伙企业的另一主要缺点是决定要由大家来作。 来自英汉非文学 - 政府文件
  • It involved selling off limited partnerships. 它涉及到售出有限的合伙权。 来自辞典例句
11 dynamics NuSzQq     
n.力学,动力学,动力,原动力;动态
参考例句:
  • In order to succeed,you must master complicated knowledge of dynamics.要取得胜利,你必须掌握很复杂的动力学知识。
  • Dynamics is a discipline that cannot be mastered without extensive practice.动力学是一门不做大量习题就不能掌握的学科。

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