Chapter 1729

This kind of experiment is very boring and boring. Most of them are completed by instruments. However, Lu Jin intentionally wants to show his ability to miss. He does it with great interest, and he also looks at it with great interest.

When she heard the mobile phone ring, she saw Xie Qingying's phone, almost all had the impulse to hang up.

However, looking at the face of he Zhichu, after thinking for a while, she still got through.

"I wonder if you and Mr. Peter have been disturbed for the Lantern Festival?" Xie Qingying preemptively asked, voice a little stiff.

"Mr. Peter and I are nothing but ordinary friends. Why should we spend the Lantern Festival together?"

I really didn't spend the Lantern Festival with Peter

Xie Qingying was very sad, countless speculations rolled in her mind. Finally, she restrained her emotions and said in a low voice, "why don't you send things to you today? Someone has taken your photos secretly."

In consideration of this, he said, "I'm sorry to say that

"Secretly? Who is so idle? " It's the 15th month of my life

Do you want to take photos outside instead of having a holiday at home?

Is there any mistake!

"Well." Xie Qingying nodded lightly, "who else? Wen Shouyi. She sent me a picture. I was angry and blacked her up. I forgot to save it. Then she withdrew it. I don't have much evidence. Whether you believe it or not, I've informed you anyway. "

She thinks that Wen Shouyi is also a character. She stares so tightly. Does she know that she is testing her DNA and her parents' DNA?

His eyes turned and said, "is it convenient for you to speak?"

"I'm in the car." Xie Qingying looks outside the car. It's late and she's almost home.

"Oh, let's text." Thinking of the smile said, "can be more detailed."

"Is it not convenient for you to speak?" Xie Qingying couldn't help but ask, "I still disturb you?"

"No, I'm watching others do experiments. It's interesting." Thinking of the smile said, hang up the phone, turned to Xie Qingying sent a text message.

When did Wen Shouyi send you the picture? Can you give a general description of what it looks like? 】

when Xie Qingying heard that she was watching others do experiments, she didn't believe it at all.

Where to watch the experiment on the 15th day of the first month?

However, she didn't say much, just sent a screenshot of Wen Shouyi's withdrawn photos to her.

After looking at the time when Wen Shouyi withdrew his photos, he replied quickly: "it's still too late. I'll teach you a way to show the photos that have been withdrawn by the other party. 】

because canceling a photo does not mean that the other party actually deleted the photo from your mobile phone, but replaces the previous photo information with an established message.

The photos sent by the other party are still in the cache of your mobile phone. Most people don't know how to retrieve the photos from the cache.

The photos don't really disappear until the phone clears the cache.

It was only a few minutes before Wen Shouyi withdrew his photos. Xie Qingying's mobile phone cache must still have Wen Shouyi's recalled photos.

Xie Qingying was particularly surprised: "can the withdrawn news be recovered?"?! 】

he nodded with a smile: [yes. 】

and then sent Xie Qingying a series of instructions to follow.

Xie Qingying is an apple mobile phone. It is more difficult to retrieve photos from the cache than Android system. Generally, it can only be achieved by prison break version.

However, with consideration, these are not problems.

When she was there, she learned a lot of practical hacker knowledge with Zhao Liangze.

Jailbreaking an apple cell phone is just a routine operation of hackers.

Xie Qingying according to the instructions, step by step in the mobile phone operation, as if to open the door to a new world.

When she recalled the two photos of Wen Shouyi from the mobile phone cache, she had already admired it.

This little girl, it's amazing.

Beauty and brain coexist, the figure flies together, no wonder he Zhichu still has feelings for her

Xie Qingying firmly to think of the idea of a respectful distance, mood complex put those two photos in the mobile phone, and forward to the care.

Then he replied, "I have something else to remind you. 】Happy Lantern Festival. 】

thinking of it, I also said: "Happy Lantern Festival. 】

Xie Qingying closed the dialog box and looked up to see that the car had stopped at the door of his home.

"Qingying, are you ok?" Xie Qingying's best friend got down from the driving position, opened the door for her and helped her out of the car.

Xie Qingying's drunkenness is almost over. She nodded to her best friend with a smile, "thank you. You go to accompany your boyfriend. I'll go back to sleep."

Her best friend sighed, "I'll help you in."

Xie Qingying was helped into the room by her best friend, and she went to bed.But she couldn't sleep and she was in high spirits.

After her best friend left, Xie Qingying took out her mobile phone and began to call he Zhichu.

But he Zhichu has been working and has not answered her phone.

……

Thinking of holding his cheek, looking at the photos in the mobile phone.

Lu Jin set up the instruments and started to test the full DNA sequences of Wen Dayou and Liang Meili.

Turn to see the thought of holding a mobile phone in a daze.

"What's the matter? Who called just now Lu Jin was very attentive and paid little attention to the things around him when he was working.

Thinking of the frown raised his head, the phone photo to Lu Jin, wondering: "you see, how is this secretly taken? I think the quality of the photos is good, but I can't tell where the people are

If you can find the location of this person, and then check the monitoring nearby, you should be able to follow suit and find the evidence of Wen Shouyi's crime.

But when she looked left and right, she couldn't determine the location of the photographer.

Lu Jin took a look and said, "from the perspective of the photo, it was taken from the top side. This angle is a bit strange, it doesn't look like a normal digital camera."

He pointed to his computer and said, "send me the photos and I'll analyze them for you."

"Good!" Take care of two photos and send them to me.

Lu Jin opened his own desktop computer comparable to the central server and opened the photos with mathematical analysis software.

Soon, this flat picture was stereoscopic on the computer screen near the road.

People and objects, as well as the surrounding buildings, stand clearly on the screen.

Lu Jin pointed to the picture on the computer and said: "with this model, we can calculate the specific position of the camera from the angle of character display."

"This can also be calculated?" He was very surprised to think about it. He looked at the road as if he were talking.

Lu Jin is very proud to smile, the mouse on the computer screen two times, "of course, can be calculated."

"Do you know a gun ballistics analyst? With a bullet hole, they can know what type of bullet it is and what type of gun it is fired from. "

"Even better ballistics experts can even pinpoint where the bullet came from."

"We also use this principle to calculate the position of the photographer."

"This man took pictures with an optical lens, and the photos were also developed with film, which made it more difficult to trace."

"If he's using a digital camera, and this is a digital picture, I can lock him in a second."

Lu Jin shook his head regretfully. "But now, I have to model his photo and calculate it from the angle of light projection to find the end of the light, that is, where the person took the picture."

"Don't you have monitoring here? Can you transfer it out? " Thinking of the hasty said, "maybe he is in the monitoring."

Lu Jin shook his head. "You can go and watch the surveillance, but don't hope too much. When I look at this angle and the texture of the photo, I feel that he is shooting from a distant high-rise building with a telephoto lens

So it's impossible for the surveillance around the perimeter of the neighborhood to see this person.

And the optical lens also avoids being scanned by electromagnetic waves, so this person cannot be found by conventional methods.

Only when Lu Jin uses complex solid analytic geometry and linear algebra to model and calculate, can he accurately find his position.

Thinking of the worship of looking at Lu Jin in the computer programming calculus.

Half an hour later, the program was finished.

He pointed to the window of a high-rise building on the three-dimensional modeling with the mouse, "it's here. This is where the man shot you with a telephoto lens

Said, the road near that person's floor and house number have written down, "look for the beginning of he, let him arrest."

Thinking of the joy of nodding, immediately call he Zhichu.

At this time, he Zhichu's work had just come to an end.

Just now, in order not to be disturbed, he turned his mobile phone to silence.

Now as soon as I picked it up, I found that there were a lot of unanswered calls in front of me. However, the last one didn't answer the phone call, which was actually made by thinking about it.

He Zhichu slightly a Zheng, immediately to think of the dial back.

Thinking of just to call again, he found that he had already called and said, "he Shao, are you still working? Did I disturb you? "

He Zhichu laughed, "just finished, what's the matter? Can I help you? "

"Well, something." Thinking of that, he sent an address, and a coordinate, plus two photos from Xie Qingying.

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