走遍美国(script)(1)

Richard是摄影师,正在创作《Family Album, U.S.A.》摄影书。他在街头为Vann母子拍照,结识了希腊交换生Alexandra。之后Richard丢失装胶卷的包,Alexandra捡到并归还。Richard一家热情招待Alexandra,还邀请她日后再来。

EPISODE 1 46 Linden Street

Act1. Richard: Excuse me.My name is Richard Stewart. I'm a photographer.May take a picture and your little boy?

Mrs.Vann: What's it for? Richard: It's for a book.

Mrs.Vann: You're writing a book?

Richard: It's a book of pictures. I call it Family Album,U.S.A.

Mrs.Vann: Oh, that's a nice idea.Well,it's fine if you take our picture. I'm Martha Vann.

Richard: Thank you. I appreciate your help. I'm Richard.What's your name?

Gerald: Gerald. Richard: How old are you,Gerald? Gerald: Five. Richard: And where do you live?

Mrs.Vann: We live in California. Richard: Well, welcome to New York.OK, just a second. I'm almost ready here.

Alexadra: Can I help you?

Richard: Oh, please.Hold Gerald's hand, please.Great! Now point to the buildings.Terrific! Give Mommy a kiss, Gerald. Nice! Thank you, Gerald. And thank you,Mrs Vann.

Mrs.Vann: Oh, my pleasure.We'll be looking for your book.

Richard: Thank you. Good-bye. Bye, Gerald.Thanks again.

Alexandra: Oh, you're welcome.

Richard: Hey, let me take your picture!

Alexandra: Wonderful.Please.

Richard: Are you from New York?

Alexandra: No, I'm from Greece. I'm an exchange student.

Richard: When did you come here? Alexandra: Three months ago. Richard: Your English is very good.

Alexandra: Thanks. I studied English in school.

Richard: Would you like some coffee?

Alexandra: No, thank you. Tell me about your book.

Richard: Oh, it's not finished yet, but I have some of the pictures. Would you like to see them?

Alexandra: Yes, I'd like that. Richard: Here they are. Family Album, U.S.A. It's an album of pictures of the United States:the cities, the special places, and the people. And these are pictures of people working:steelworkers, bankers, police, street vendors, ambulance drivers, doctors...Oh, this is my father. He's a doctor. This is my mother.

Alexandra: What's her name? Richard: Ellen. My younger brother, Robbie. He goes to high school. This is my sister Susan. She works for a toy company.Here's my grandfather. He lives in Florida. And this is my wife Marilyn.

Alexandra: Oh, she's very pretty. Richard: Thanks.And what about your family?

Alexandra: They're in Thessaloniki. That's a large city in northem Greece. But now I'm living in the Bronx.

Richard: With a Greek-American family?

Alexandra: No. Hispanic(Who originally came from Latin America).

Richard: Oh no! It's thirty.Will you excuse me? I have to meet my wife.

Alexandra: It was nice meeting you.

Richard: It was a pleasure meeting you, too.Thanks for your help.And good luck! I've got to go. By the way. I'm Richard. What's your name?

Alexandra: Alexandra. Richard: Bye-bye, Alexandra.Thanks.

Alexandra: Bye-bye. Richard! Richard! You left your bag.

EPISODE 1 46 Linden Street


Act2.

Alexandra: Excuse me, officer.Can you help me?
Policeman: Sure.
Alexandra: Can you tell me how to get to Linden Street, in Riverdale?
Policeman: "Richard Stewart, 46 Linden Street, Riverdale, New York." You should take the number 1 subway(underground railway).
Alexandra: Is there a station near here?
Policeman: Yes. The station's that way. You should take the number 1 train to Van Cortlandt Park.
Alexandra: Number 1 train to Van Cortlandt park. Thank you.
Policeman: Anytime. Good luck. Remember, ther number 1 train. The uptown platform.
Alexandra: Thank you.
Policeman: You're welcome.
Customer: Is this pink (between white and red)too bright for me?
Marilyn: Mmm-hmm. It is a very bright pink. Try this. It's size eight.
Customer: But I wear size ten.
Marilyn: How about green? It's size ten.
Customer: Let me try it on.
Customer: I'm taking too much of your time.
Marilyn: It's six 0'clock. Where's my husband? I was expecting him here at five forty-five.
Customer. Don't worry. The we're going to be late for dinner.
Marilyn: I know. But we're going to be late for dinner.
Customer: I'll take this green sweater. I like the color on me, don't you?
Marilyn: I think it looks terrific on you.
Richard: I'm sorry I'm so late. I had a really bad day.
Marilyn: It's ten after six. We're late. Robbie's cooking tonight,and dinner's at six thirty.
Richard: I know. I know.I'm really sorry. I left my bag of film on the ferry. I went back for it , but the ferry (boat)was gone. I lost a whole day's work.
Marilyn: I'll call the Staten lsland Ferry lost-and-found office.
Richard: I didn't think of that. Thanks.
Marilyn: Hello, Yes. The number, please, of the Staten lsland Ferry lost-and-found office. Five five five...zero eight zero eight. Thank you.
Richard: I really appreciate it, Marilyn.
Marilyn: Hello. Did anyone find a camera bag this afternoon, a small canvas bag, on the J.F.Kennedy Ferry?...No? Maybe someone will find it. The name is Stewart, Richard Stewart. And the telephone number is five five five...three oh nine oh. Thank you.Sorry, Richard. They don't have it.
Richard: Thanks,anyway. There was a girl on the ferry. Now maybe...
Marilyn: Tell me about it on the way home.


Act3.

Philip: And give her a teaspoon of the medicine after every meal.Don't worry. She'll be fine. You're welcome. Good-bye.
Ellen: How are you?
Philip: I'm tired and hungry.
Ellen: Well, Marilyn and Richard called. They'll be here soon, and then we'll eat.
Philip: All right. Is...is Susan coming?
Ellen: Well, she'll be here later. She has to work late tonight.
Philip: And what's Robbie cooking for dinner?
Ellen: It's a surprise.
Philip: I hope its pasta(a type of food made from a mixture of flour, eggs, and water) .
Philip: Robbie, the dinner was terrific.
Susan: Yes, it was delicious.
Marilyn: What's for dessert(sweet after a meal)?
Robbie: Oh, I forgot dessert.
Philip: Robbie!
Ellen: Don't worry. We've got lots of ice cream.
Richard: Oh, I'd love some ice cream.
Ellen: Well, there's chocolate and coffee and a little vanilla.
Robbie: I'll have vanilla. Is that all right with everyone?
Philip: I'll have chocolate.
Marllyn: Me, too.
Richard: Uh, one scoop of coffee and one scoop of chocolate for me.
Ellen: Robbie, will you help me serve?
Richard: I keep thinking about that bag of film. Eight rolls. a whole day's work. And good stuff,too.
Ellen: I'll get it. (open the door)Hello.
Alexandra: Hello. Does Richard Stewart live here?
Robbie: Yes,he's my brother. I'm Robbie...Robbie Stewart.
Alexandra: I'm Alexandra Pappas. How do you do? Your brother left his bag of film on the ferryboat. I found it.
Robbie: I'm really glad to see you. I mean...my brother'll be really glad to see you!
Ellen: Robbie! Who is it?
Robbie: It's Richard's film! I mean, Alexandra Pappas. Come in, please.
Richard: Alexandra!
Alexandra: Hello, Richard. I found your bag!
Richard: Oh, thank you! Thank you! Um...Alexandra, let me introduce you. This is my wife Marilyn.
Alexandra: Richard showed me your photo. How do you do ?
Marilyn: Oh yes. Richard told us all about you. It's nice to meet you.
Richard: And this is my mother, Ellen Stewart.
Alexandra: How do you do?
Richard: And my father, Dr.Philip Stewart.
Philip: Nice to meet you, Alexandra.
Richard: And…ah…you met Robbie
Alexanra: Yes. And you must be Susan.Hi.
Susan: Hi.Welcome.
Richard: I'm so glad you found the bag and took the time and trouble to return it.
Alexandra: Oh,it was no trouble. I just took the wrong train.
Ellen: Would you like something to eat?
Alexandra: Thank you, no.I'm late for dinner at my house. I really have to go.
Richard: Would you like to call home?
Alexandra: I'd appreciate that.
Ellen: Please,use the phone.
Alexandra: Thanks. Excuse me.
Richard: Alexandra's a high-school exchange student from Greece.
Robbie: Where does she live?
Richard: With a family in the Bronx.
Robbie: Oh, that's not too far from here!
Richard: Take it easy, Robbie.
Alexandra: Thank you. I can only stay a few minutes.
Ellen: Have some iced tea.
Alexandra: Thanks, Mrs. Stewart.
Robbie: Please sit down, Alexandra.
Philip: So, you're an exchange student. Where do you go to school?
Alexandra: At the Bronx High School of Science.
Philip: Oh, that's a very good school. What are your favorite subjects?
Alexandra: Biology and mathematics. Richard tells me you're a doctor.
Philip: Yes, a pediatrician.And what does your father do?
Alexandra: He's a lawyer, in Thessaloniki.
Robbie: Would you like some pasta? I made it myself. It might be a little cold.
Alexandra: Thanks, no. I do have to go. It was nice meeting you all.
Marilyn: Well, maybe you'll come for lunch some Sunday, so we can really thank you for bringing Richard's bag back.
Alexandra: Maybe.
Ellen: You're welcome anytime.
Philip: Good-bye.
Richard: Can I drive you home?
Alexandra: No,thanks. The train is just up the street. It won't take me long at all.
Richard: Well, you really saved the day for me, Alexandra.
Alexandra: Bye.
Richard: Bye-bye.
Ellen: Good night.
Philip: She's a smart young lady, and very nice.
Robbie: Very! Hey, she forgot her bag!
Ellen: I guess we'll be seeing Alexandra again, Right, Robbie?

### 光流法C++源代码解析与应用 #### 光流法原理 光流法是一种在计算机视觉领域中用于追踪视频序列中运动物体的方法。它基于亮度不变性假设,即场景中的点在时间上保持相同的灰度值,从而通过分析连续帧之间的像素变化来估计运动方向和速度。在数学上,光流场可以表示为像素位置和时间的一阶导数,即Ex、Ey(空间梯度)和Et(时间梯度),它们共同构成光流方程的基础。 #### C++实现细节 在给定的C++源代码片段中,`calculate`函数负责计算光流场。该函数接收一个图像缓冲区`buf`作为输入,并初始化了几个关键变量:`Ex`、`Ey`和`Et`分别代表沿x轴、y轴和时间轴的像素强度变化;`gray1`和`gray2`用于存储当前帧和前一帧的平均灰度值;`u`则表示计算出的光流矢量大小。 #### 图像处理流程 1. **初始化和预处理**:`memset`函数被用来清零`opticalflow`数组,它将保存计算出的光流数据。同时,`output`数组被填充为白色,这通常用于可视化结果。 2. **灰度计算**:对每一像素点进行处理,计算其灰度值。这里采用的是RGB通道平均值的计算方法,将每个像素的R、G、B值相加后除以3,得到一个近似灰度值。此步骤确保了计算过程的鲁棒性和效率。 3. **光流向量计算**:通过比较当前帧和前一帧的灰度值,计算出每个像素点的Ex、Ey和Et值。这里值得注意的是,光流向量的大小`u`是通过`Et`除以`sqrt(Ex^2 + Ey^2)`得到的,再乘以10进行量化处理,以减少计算复杂度。 4. **结果存储与阈值处理**:计算出的光流值被存储在`opticalflow`数组中。如果`u`的绝对值超过10,则认为该点存在显著运动,因此在`output`数组中将对应位置标记为黑色,形成运动区域的可视化效果。 5. **状态更新**:通过`memcpy`函数将当前帧复制到`prevframe`中,为下一次迭代做准备。 #### 扩展应用:Lukas-Kanade算法 除了上述基础的光流计算外,代码还提到了Lukas-Kanade算法的应用。这是一种更高级的光流计算方法,能够提供更精确的运动估计。在`ImgOpticalFlow`函数中,通过调用`cvCalcOpticalFlowLK`函数实现了这一算法,该函数接受前一帧和当前帧的灰度图,以及窗口大小等参数,返回像素级别的光流场信息。 在实际应用中,光流法常用于目标跟踪、运动检测、视频压缩等领域。通过深入理解和优化光流算法,可以进一步提升视频分析的准确性和实时性能。 光流法及其C++实现是计算机视觉领域的一个重要组成部分,通过对连续帧间像素变化的精细分析,能够有效捕捉和理解动态场景中的运动信息
微信小程序作为腾讯推出的一种轻型应用形式,因其便捷性与高效性,已广泛应用于日常生活中。以下为该平台的主要特性及配套资源说明: 特性方面: 操作便捷,即开即用:用户通过微信内搜索或扫描二维码即可直接使用,无需额外下载安装,减少了对手机存储空间的占用,也简化了使用流程。 多端兼容,统一开发:该平台支持在多种操作系统与设备上运行,开发者无需针对不同平台进行重复适配,可在一个统一的环境中完成开发工作。 功能丰富,接口完善:平台提供了多样化的API接口,便于开发者实现如支付功能、用户身份验证及消息通知等多样化需求。 社交整合,传播高效:小程序深度嵌入微信生态,能有效利用社交关系链,促进用户之间的互动与传播。 开发成本低,周期短:相比传统应用程序,小程序的开发投入更少,开发周期更短,有助于企业快速实现产品上线。 资源内容: “微信小程序-项目源码-原生开发框架-含效果截图示例”这一资料包,提供了完整的项目源码,并基于原生开发方式构建,确保了代码的稳定性与可维护性。内容涵盖项目结构、页面设计、功能模块等关键部分,配有详细说明与注释,便于使用者迅速理解并掌握开发方法。此外,还附有多个实际运行效果的截图,帮助用户直观了解功能实现情况,评估其在实际应用中的表现与价值。该资源适用于前端开发人员、技术爱好者及希望拓展业务的机构,具有较高的参考与使用价值。欢迎查阅,助力小程序开发实践。资源来源于网络分享,仅用于学习交流使用,请勿用于商业,如有侵权请联系我删除!
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