题目内容
We already have iris(虹膜) and fingerprint scanning but noses could be an even better method of identification, says a study from the University of Bath, UK.
The researchers scanned noses in 3D and characterized them. They found 6 main nose types: Roman, Greek, Nubian, hawk, snub and turn-up. Since they are hard to hide, the study says, noses would work well for identification.
The researchers say noses have been overlooked in the growing field of biometrics, studies into ways of identifying distinguishing characters of people. "Noses are out standing facial features and yet their use as a biometric has been largely unexplored," said the University of Bath's Dr Adrian Evans. "Ears have been looked at in detail, eyes have been looked at in terms of iris recognition but the nose has been ignored."
The researchers used a system called PhotoFace, developed by researchers at the University of the West of England in Bristol, for the 3D scans.
Several measurements by which noses can be recognised were identified and the team developed recognition software based on these parameters(范围)
" This initial work is nowhere as good as iris identification but the nose has pros and cons," said Dr Evans.
There's no magic biometric that solves all your problems. Irises are a powerful biometric but can be difficult to get accurately and can be easily covered by eyelids or glasses. People can easily cover up their ears, with their hair for example.
"Of course you can have a broken nose or wear a false nose or have plastic surgery but to have nose surgery to change your identity is fairly obvious. Irises are very good for recognition but you can put in dilation drops which change the iris completely. Not all techniques are reliable," he said.
The research is based on a study of 40 noses and the data base has now been expanded to 160 for further tests to see if the software can pick out people from a larger group and distinguish between relatives.
Dr Evans hopes the method can be proven to be effective on this larger sample. "The technique certainly shows potential, perhaps to be used in combination with other identification methods," he said.
- 1.
Where can you probably read this article?
- A.In a newspaper about education.
- B.In a newspaper about science
- C.In a newspaper about software
- D.In a newspaper about dress-up
- A.
- 2.
Which is true according to the passage?
- A.Dr Adrian Evans works at the University of the West of England in Bristol,
- B.The researchers used a system called Photoshop for the 3D scans.
- C.The research is based on a study of 160 noses.
- D.The research team developed their own recognition software.
- A.
- 3.
The word overlooked in the third paragraph possibly means:
- A.well-studied
- B.carefully-scanned
- C.wholly-recognized
- D.carelessly-studied
- A.
- 4.
We can infer from the last three paragraphs that_________.
- A.The consequence of the method remains to be seen
- B.Dr Evans is sure that the method can be used to pick out uncles and nephews.
- C.More new soft wares will be developed to do the research.
- D.This method can still be used if your nose is broken,
- A.
Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that over-consumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place. The total amount of packaging increased by 12% between 1999 and 2005. It now makes up a third of a typical household’s waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard. Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example. But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But is also applies to a wide range of consumer products, which often have far more packaging than necessary.
There are signs of hope. As more of us recycle, we are beginning to realize just how much unnecessary material are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.
【小题1】What does the underlined phrase “over-consumption” refer to?
A.Using too much packaging. |
B.Recycling too many wastes. |
C.Making more products than necessary. |
D.Having more material than is needed. |
A.the tendency of cutting household waste |
B.the increase of packaging recycling |
C.the rapid growth of super markets |
D.the fact of packaging overuse |
A.helps control the greenhouse effect |
B.means burning packaging for energy |
C.is the solution to gas shortage |
D.leads to a waste of land |
A.Unpackaged products are of bad quality. |
B.Supermarkets care more about packaging. |
C.It is improper to judge quality by packaging. |
D.Other products are better packaged than food. |
A.Fighting wastefulness is difficult. |
B.Needless material is mostly recycled. |
C.People like collecting recyclable waste. |
D.The author is proud of their consumer culture. |