High Speed Book Scanner
Simply turning pages of a book quickly may not seem like the best way to scan it. A Japanese research group at Tokyo University has created new software that allows hundreds of pages to be scanned within minutes. Scanning text is normally a boring process with each page having to be inserted into a scanner, but the team led by Professor Masatoshi Ishikawa uses a high speed camera that takes 500 pictures a second to scan pages as they are turned by workers.
Normal scanners can only scan the information that is actually before them on the page. This high speed book scanner uses a camera that captures pages at 1000fps as they are turned. A system built in allows it to automatically correct any changes to the text due to the page bending as well as light differences due to shadows. “It takes a shot of the shape, then it calculates the shape and uses those calculations to film the scanning,” Ishikawa said, explaining the system used to reconstruct the original page.
The current system is able to scan an average 250-page book in a little over 60 seconds using basic computer hardware. While it now requires extra time to process the scanned images, the researchers hope to eventually make the technology both faster and much smaller. “In the more distant future, once it becomes possible to put all of this processing on one chip and then put that in an iPad or iPod, one could scan just using that chip. At that point, it becomes possible to scan something quickly to save for later reading,” Ishikawa said.
Being able to scan books with an iPhone may be further off, but Ishikawa says that a commercial version of the large-scale computer based scanning system could be available in two or three years. While the technology has the potential to take paper books into the digital age, it remains to be how publishers will react to people scanning their books while just turning pages quickly.
1. According to the passage, the advantage of the new scanning software is that ___.A.there is no need to scan every page |
B.no manpower is needed in operating the scanner |
C.it can work much more effectively |
D.it can make the scanning process more interesting |
A.changing the shape of the images |
B.reducing the size of the images |
C.scanning several pages at the same time |
D.reconstructing the original page |
A.Disapproving. | B.Optimistic. |
C.Uncertain. | D.Cautious. |
A.Publishers will probably not welcome the new software. |
B.Publishers will refuse to comment on the new software. |
C.People will get any book they like more easily. |
D.People won’t need to buy books any more with an iPhone. |
相似题推荐
【推荐1】How would human beings react if we found out we’re not alone in the universe? What if we knew an alien civilization was to invade (入侵) Earth? What would we do?
These are the questions asked in The Three-Body Problem. When a secret military project sends signals into space to get in touch with aliens, an alien civilization in face of destruction receives the signals and plans to invade Earth. Meanwhile, on Earth, people begin to separate into different groups: those who welcome aliens and those who want to fight against them.
The novel was written by Chinese author Liu Cixin and published in 2008. Translated into English in 2014 and almost 20 languages since, it was called an absolute “must-read in any language” by Booklist magazine. Liu has won several awards for it and in 2015, he became the first Asian to win the Hugo Award for Best Novel, the highest award in science fiction.
Just from the title, one could imagine that the text might be heavy with physics terms (术语). But as US writer Jason Heller said: “Indeed this science fiction is full of lengthy passages explaining technical terms. But Liu Cixin supports all of that burning-brain theory with empathetic (感同身受的) characters and thrilling story plots.”
At the very heart of science fiction — and what makes it truly appealing to readers — is the concept of an uncertain future. This allows the author to push the boundaries of readers’ imaginations. Liu fully uses this approach to keep readers anxiously turning the page. While reading, they ask themselves, “What would I do?”
In an interview with The New York Times, Liu said, “China is on the path of rapid modernization and progress, kind of like the US during the golden age of science fiction in the 1930s to the 1960s. The future in the people’s eyes is full of attractions and hope, but also threats and challenges. That makes for very fertile soil.”
1. Why does the author ask the 3 questions in Paragraph 1?A.To warn us of the crisis Earth is faced with. |
B.To introduce the novel The Three-Body Problem. |
C.To show the author’s worries about Earth. |
D.To remind us to watch out for alien civilizations. |
A.It is about a fight between aliens and an army on Earth. |
B.It was translated into many languages once published. |
C.It has gained worldwide recognition and great success. |
D.It targets the readers with a good knowledge of physics. |
A.Explaining very difficult physics terms. |
B.Exploring the boundaries of readers’ imaginations. |
C.Applying the concept of an uncertain future. |
D.Encouraging readers to ask themselves questions. |
A.China is now in the golden age of science fiction. |
B.The USA authors can’t create science fiction now. |
C.Now Chinese people are confused about the future. |
D.China’s progress mainly depends on fertile soil. |
【推荐2】One of the most well-known figures of American history, Thomas Jefferson was the third President of the United States and the author of the Declaration of Independence. His life was an inspiring one and at the same time a little bit contradictory to his statements and way of living life, and thus he has formed the subject of a lot of authors’ books.
Jefferson and his time
| This is a Biography of the life of Jefferson published in 6 volumes over a very long period of 34 years staring from 1948 till 1982. Read it For: It is an entire collection introducing all aspects of Jefferson’s life in great details from his childhood till his last days. For history enthusiasts, this is a wonderful book that will give you insight into the life of one of the most memorable American leaders. Don’t Read it For: This series is a biography and strictly a work of non-fiction. It is reading about the life of a person and might get boring for some. |
American Sphinx
| An interesting yet strange book, this piece of writing is not an attempt to shed light on the life of Jefferson but rather an attempt to understand his mind. Jefferson was one who spoke something but did the complete opposite of it. Read it For: This book tries to analyze Jefferson’s life but does not do it in a way that criticizes him or idolizes him. This National Award winning book perfectly balances the act of examining someone’s acts and general behavior and trying to figure out the reason behind his contradictory statements and acts. Don’t Read it For: If you are searching for a book about Jefferson’s life, this is not for you. It covers a few events of his life, not his entire life. This Political Biography by Meacham takes you on a journey into the world that Jefferson lived in and saw it through his eyes. It shows how Jefferson formed the world around him and handled situations and people to shape the American political system as it is today. |
The Art of Power
| Read it For: The depth with which this book is written is commendable. It is noted that the work done by Meacham in this book puts you inside Jefferson’s head and makes you understand what it would be like to be Jefferson. Don’t Read it For: While this book shows the genius of Jefferson, it can come off as bias, showing Jefferson in a very positive light and his opponents in a very negative light. |
A.“Jefferson and His Time” | B.“American Sphinx” | C.“The Art of Power” | D.none of the above |
A.learn how Thomas got through his childhood in details |
B.understand why Thomas’ words and deeds were not always matched |
C.know how ordinary people criticize or idolize him |
D.learn how Jefferson formed the world around him and addressed situations |
A.may feel bored while they are reading it |
B.cannot get a complete description of Thomas’ life |
C.learn Thomas’ political life mainly from historians’ perspective |
D.cannot get an objective point of view about Thomas’ gift |
Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the page. As a result of this misleading emphasis(强调)on the purely visual aspects of reading, many exercises have been designed to train the eyes to see more words at one fixation. For example, in some exercises, words are flashed on to a screen for a tenth of a second. One of the exercises has required students to fix their eyes on some central point, taking in the words on either side. Such word patterns are often formed in the shape of pyramids(金字塔), so the reader takes in more and more words at each successive(连续的)fixation. All these exercises are very clever, but it’ s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently. Reading requires the ability to understand the relationship between words. Consequently, for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated(孤立的)words and phrases would seem unlikely to help him in reading a continuous text.
1. The time of the recognition span can be affected by the following factors except _______.
A.1ighting and tiredness |
B.the length of a group of words |
C.one’s purpose in reading |
D.one’s familiarity with the text |
A.requires a reader to take in more words at each fixation |
B.requires a reader to see words more quickly |
C.demands a deeply-participating mind |
D.demands more eyes than mind |
A.The ability to see words is not needed for an efficient reading. |
B.The reading exercises mentioned are useless for reading. |
C.The reading exercises mentioned can’t help improve reading. |
D.The reading exercises mentioned have done a great job so far. |
A.The visual span is a word or a group of words we see each time |
B.Many experts began to question the efficiency of eye training |
C.The emphasis on the purely visual aspects is misleading |
D.The eye training will help readers in reading a continuous text |
A.critical | B.neutral |
C.supportive | D.optimistic |
【推荐1】We’re often being told how self-driving can will reward US With almost unimaginable benefits when they finally hit the streets. Aside from the convenience of being chauffeured (私人司机) everywhere by artificial intelligence ( AI), there’s the safety factor, not to mention how environmentally friendly driver-less electric vehicles could be. But there’s also another advantage—parking. It’s one that could have a vast impact on the look, feel, and function of the cities, and it could thoroughly change the crowded urban spaces.
“We aren’t going to need parking, definitely not in the places we have it now,” Alain L. Komhauser, a researcher at Princeton University, told Patrick Sisson at Curbed. “Having parking close to where people spend time is going to be a thing of the past. If I’m at the office, it doesn’t need to be there.” The extreme case of totally empty car parks and city streets with no stationary (静止的) vehicles would probably require people to fully let go of personal car ownership.
“Car sharing is already reducing the need for parking spaces,” Carlo Ratti told Curbed. “Self-driving vehicles will strengthen this trend and have a dramatic effect on urban life, because they will blur (使模糊) the distinction between private and public modes of transportation,” he added. “‘Your’car could give you a lift to work in the morning and then, rather than sitting useless in a parking lot, give a lift to someone else in your neighbourhood,social-media community, or city.”
In that case, we needn’t park our cars. They’ll park by themselves, so we would see a huge increase in the width of sidewalks, bike lanes, and space for any other kind of transportation.
In all likelihood, we won’t see these kinds of changes happening very soon. But it’s exciting to think of the benefits this technology could bring.
1. Why do the author mention the often-told advantages of self-driving cars?A.To draw a conclusion. | B.To make a comparison. |
C.To analyze the underlying reasons. | D.To introduce the topic. |
A.By producing more eco-friendly electric cars. |
B.By selling public vehicles to personal owners. |
C.By promoting car-sharing with self-driving vehicles. |
D.By allowing only self-driving vehicles to run on roads. |
A.More people will walk to work. |
B.Public transportation will shrink. |
C.Urban areas will be less crowded. |
D.We needn’t spend money on transportation. |
A.Indifferent. | B.Favorable. |
C.Ambiguous. | D.Disapproving. |
【推荐2】Way back in 1965. Seiichi Miyake spent his own money to try and come up with an invention that would help a friend who was suffering vision loss move through the city easily. He came up with the idea of tactile blocks (导盲砖). you will have seen these at crosswalks all over the world, small raised blocks that warn people with low vision or blindness of coming danger and also safety.
Miyake designed the blocks in two ways. The dotted blocks warn the visually disabled that they are approaching danger. This type is most commonly found on the edge of pavement and railway platforms. A block with a barred pattern warns the pedestrians (行人) that they are following a safe path. Pedestrians can recognize these blocks and their patterns with either their vision walking stick, their feet or with the help of a vision assistance animal.
His block designs were first adopted by the city of Okayama on March 18,1967 , next to a school for the blind. In the 1970 s, the blocks were installed across all Japanese railway stations.
Since their invention, the tactile blocks have had a few changes including a pattern with smaller raised dots or more pill-shaped raised blocks indicating different directional cues around the world. For example, when the dots are raised in lines in the direction of movement, it might mean steps ahead. For those without vision loss, the blocks may simply blend (融合) into the urban environment but they play a critical role in giving more independence to those with a disability in vision.
However, the tactile blocks have their critics too. Some argue that they might do more harm than good to those with mobility difficulties such as the elderly who may trip on the uneven surface. Moving forward into a world that is more accessible to people with disability, cities are turning to designers who have vision disability themselves.
1. What can we learn from the passage?A.Seiicbi Mipake, who was suffering vision loss, came up with the invention. |
B.The visually disabled benefit a lot from the invention in their daily life. |
C.A block with a barred pattern warns the pedestrians of the danger ahead. |
D.The tactile blocks were originally intended to blend into the urban environment |
A.To guide the visually disabled more accurately. |
B.To prevent pedestrians from tripping over the blocks. |
C.To make the tactile blocks better integrate in the surroundings. |
D.To help people with visual disability to walk in a line. |
A.They are better designers. |
B.They are more sympathetic. |
C.They know better about their world. |
D.They demand less from the government. |
【推荐3】Do you find it difficult to put down your mobile phone?
If yes, you're not alone. These days, many people suffer from the stress of FOMO (fear of missing out). They reach for their mobile phones when they wake up in the morning, and for the rest of the day, they constantly scroll down the timelines of their social media apps to get the latest updates.
Despite the convenience smart phones bring, many people struggle with their digital habits.
As Sameer Samat, US tech company vice president of product management, said in his speech at the 2018 Google I/O developer conference on May 8, 70% of people don’t want to spend so much time on their phones.
This is why during the conference Google introduced an app called Dashboard for the new version of its Android operating system. This new app includes well-being functions that aim to help users manage the time they spend on their digital devices.
It all starts with a bird’s-eye view. Dashboard allows users to look at all the details of their phone habits. For example, users can see how many times they’ve unlocked their phone and how many times they’ve checked their social media apps, as well as how much time they spend on each app every day.
Once the users see this information, they'll be able to make some changes. With the App Timer functions, users can set a time limit for how long they can use each app for every day. After they've hit the limit,they won't be able to launch the app until the next day.
But even if users become more mindful of their usage, they’re still likely to be drawn in by notifications (通知). This is where the Shush feature comes in. It automatically silences incoming calls and notifications when a user puts his/her phone face down.
If people truly want to make full use of their free time instead of losing hours using their smart phones, these new functions are just one way of doing that.
After all, who needs to use an app to stop you from using other apps when the easiest answer would be just to use your willpower?
1. People under the pressure of FOMO may________.A.have trouble with their sleep |
B.find it hard to focus on anything |
C.be addicted to their mobile phones |
D.prefer to download the latest apps |
A.The limited functions of current Android system. |
B.People’s complaint about their smart phones. |
C.Samat’s impressive speech at a conference. |
D.Mobile phone users’ great demand. |
A.Android | B.Timer |
C.Shush | D.Dashboard |
A.Dashboard turned out to be popular. |
B.Dashboard is a perfect choice to manage time properly. |
C.Strong willpower is the easiest way to avoid smart phone addiction. |
D.People are exploring other ways to stop overusing smart phones. |
【推荐1】Sweetest Day is celebrated on the third Saturday in October as a day to make someone happy. It is an occasion which offers all of us an opportunity to remember not only the sick, the aged, and children who have lost their parents, but also friends, workmates, relatives and neighbors whose helpfulness and kindness we have enjoyed.
Over 60 years ago, when a Cleveland man noticed that some people, such as children who lost their parents and patients who lay in bed, too often felt forgotten and neglected, he developed in his mind the idea of showing them that they were remembered. He did this by giving them small gifts. With the help of his friends and neighbors, he gave those people small gifts on a Saturday in October. During the years that followed, other Clevelanders began to take part in the celebration, which came to be called “Sweetest Day”. Over time, the Sweetest Day idea of spreading cheer to the poor, the sick and children who had lost their parents was broadened to include everyone, and became an occasion for remembering others with a kind act or a small gift. Soon the idea spread to other cities all over the USA.
Sweetest Day is not based on any single group’s religions(宗教的)beliefs or on a family relationship. It is a reminder that a thoughtful word or deed enriches life and gives it meaning.
Because for many people remembering takes the form of gift giving, Sweetest Day offers us the opportunity to show others that we care, in a positive way.
1. What can we learn from the first paragraph?A.Sweetest Day is celebrated on the third Sunday in October. |
B.Sweetest Day is a day to make others happy. |
C.Sweetest Day is an occasion for lovers to express love. |
D.Sweetest Day is just an occasion to care about disabled people. |
A.remembered | B.hated |
C.paid little or no attention to | D.disappointed |
A.A Cleveland man’s meeting with some people in need. |
B.Giving gifts to each other’s beloved. |
C.Kind acts performed to the poor. |
D.Cleveland men’s religious beliefs. |
A.Visiting sick people of the hospital. |
B.Visiting children who have lost their parents. |
C.Giving friends small gifts. |
D.Giving flowers to sweethearts. |
【推荐2】When you’re worried about stumbling(绊脚), you look down at your feet when you walk. Similarly, fish also do so when they swim, a new study finds.
When water moves around them, fish have to find ways to stabilize themselves so they don’t get swept away. If they focus on other fish or other moving objects in the water, they might wrongly believe they are moving. Instead, when they look down and focus on the river bottom, they’re able to more correctly judge their movement and speed.
“There are many misleading motion cues(提示) above them, but the most abundant and reliable signals are from the bottom of the river” says study author Emma Alexander, an assistant professor of computer science at Northwestern University.
Researchers were fascinated by a recently discovered behavior where fish respond more strongly to motion below them than above them. To completely understand that behavior, they turned to zebrafish, which are often used for research and are well-studied. They had a team following the fish in a lab and another in India to analyze the fish in their natural habitat.
In the lab, they tracked fish’s movements inside a tank. Researchers recorded videos in seven sites around India—in shallow rivers where zebrafish are found. They placed a camera inside a waterproof case and attached it to a remotely controlled robotic arm. They put the camera in the water to see what the fish were doing.
Analyzing the videos and data, researchers found that in both the wild and the lab situations, zebrafish looked down when they were swimming forward. They came to the conclusion that the fish looked down in order to understand the motion around them and then they were able to avoid being swept away in the current.
“Understanding that ability not only helps researchers learn more about fish, it may also give them information when designing some robots. The finding of fish’s motion response can help us build artificial vision systems that benefit from the lessons of hundreds of millions of years of evolution behind them.” Alexander says.
1. Why do fish seldom focus on other moving objects above them?A.To save energy for their moving. | B.To stay still in the water all the time. |
C.To avoid misleading motion cues. | D.To protect themselves from enemies. |
A.They collected a variety of fish from India. |
B.They tracked fish’s movements in the rivers. |
C.They created some natural habitats in their lab. |
D.They interacted with fish in person in the water. |
A.The secrets of fish in the water. | B.The value of the study finding. |
C.The principles of designing robots. | D.The meaning of artificial vision systems. |
A.Watch Below to Avoid Stumbling |
B.Artificial Vision Systems Are Vital |
C.Fish Look Down When They Swim |
D.Fish-inspired Robots Will Take Shape |
【推荐3】In China, chain restaurants – especially the big multinational ones – are cool. Going to Starbucks, for example, is a status symbol. It not only says, “I’m rich enough to buy this overpriced coffee,” but also, “I’m cosmopolitan (见多识广的) enough to be part of globalization.”
Where I come from in the UK, however, chains are neither fashionable nor gourmet(美食的). Chains are where you go on New Year’s Day when nowhere else is open, or when you are 5 years old and your parents can’t stand hearing, “I’m huuuuuungry!” any longer. In my own case (with regards to McDonald’s), a chain is where you are taken on your first “date”. Even at the age of 13, I knew to give the guy the “let’s just be friends” phone call the next day.
In the UK, independent cafes and restaurants are making a comeback on the fashion scene. Nowadays, a Londoner who says “let’s meet for a coffee at Monmouth” (an independent cafe) is much cooler than one who says “let’s go to Starbucks”. Even if Monmouth’s coffee is a little more expensive, there’s a satisfaction in knowing your pounds aren’t going straight to the big corporations.
Of course, there are chain stores all over the UK; you can’t go five minutes without spotting a Costa Coffee. But numbers do not add up to good taste.
I do, however, have a confession (坦白). After moving to China I had moments when all the rice and Kung Pao Chicken became too much. I, too, have retreated to McDonald’s.
1. Many Chinese people like to go to multinational chain restaurants because ______.A.the restaurants give customers a taste of foreign culture |
B.the restaurants offer different food and drinks from other restaurants |
C.they believe that eating there will show their wealth and social status |
D.these restaurants are perfect places for a romantic date |
A.The author has grown tired of Chinese food. |
B.Branches of Monmouth’s cafe can be found all over the UK. |
C.Most independent stores are closed on New Year’s Day in the UK. |
D.It is cool in the UK to take your first date to a chain restaurant. |
A.the author doesn’t like food from Pizza Hut |
B.the author doesn’t like to follow fashion trends |
C.many Britons think that numbers mean poor quality |
D.many Britons don’t like big corporations |
A.adapted | B.contributed |
C.subscribed | D.Switched |