After the concession, Ning Hao was allowed to extract video related to Lei Tianyi's injury in the surveillance system for analysis. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Ning Hao knew that the reason why the camera couldn't see the image of the insect was most likely because its shell was made of a similar material to the Beetle robot, which was a new type of material made of imitation of lizard skin.

This material, combined with the robot's vision sensor, can sense the surrounding background color, transmit the signal to the controller, and select the best color after a special algorithm calculation, and then transmit the command to the skin part, showing different appearance colors.

The material is composed of red, yellow, and blue primary colors of cell-like tissues, interpolated distribution, instructions will tell the size of each cell-like tissue, the size of different color tissues is different, the skin looks different colors, sensitivity and coordination with background colors are stronger than chameleons in nature.

If this is the case, it is necessary to explain why the camera at the door of Lei Tianyi's office captured the only image, could it be that the background that controls the robot deliberately released water?

After careful observation, Ning Hao found that two cameras were installed at the door of the office, shooting from the left and right directions, and the backgrounds observed by the two cameras were walls and doors respectively, which caused the background algorithm of the insect to only choose the background seen by one of the cameras to change color, and the other camera happened to see the figure of the insect.

The first suspicion is solved, and the next thing is easy.

Ning Hao knew that no matter how this material changed color, it was solid, and as long as there was light, it would produce a projection.

In each frame of the image, a comprehensive search is performed based on the position of the light source, and if a shadow of similar shape is found, the spatial position of the insect can be calculated and restored.

He wrote an algorithm that used a computer to scan the copied video data to find all the images that showed similar shadows, and then arranged them according to the timeline.

After the completion of the work, Ning Hao followed Zuo Ling and came to the criminal police team again.

After the demonstration, several police officers were convinced of the principle described by Ning Hao.

"You deserve to be a professor, Zuo Ling, you really have a vision!" The person who spoke was Brother Wang in Zuo Ling's mouth, he went to the police to arrest Du Ziyan last time, and he was just transferred to the criminal police team a few days ago.

Zuo Ling glanced at him, and his face was slightly red.

"I'm not a professor, just an ordinary university teacher!" Ning Hao said calmly.

Everyone gathered around, Ning Hao connected the program software he brought with the surveillance video, starting from the frame where the image of the insect was captured at the door of Lei Tianyi's office, and tracked back, wanting to see where the insect went in the end, his program was based on the shadow of the insect, and the specific position calculated was restored with a graphic figure, which looked very conspicuous.

Everyone stared intently at the screen, shouting the names of the places where the bugs passed:

"13th floor!"

"Elevator! This thing can take the elevator! ”

"Tengyun Road!"

"Tengjing Road!"

"Tenglong Plaza! A child in the square saw it! ”

"It's a pity that the child is too young to testify."

"Qunhui Road!"

"Sandbank Bridge!"

"! This guy exploded automatically! ”

In addition to the insect graphics automatically restored by Ning Hao's program, there was a small spark there, because the camera was far away, if it weren't for the detection of the vine, no one would have noticed the inconspicuous small spark in that frame.

Zoom in, zoom in again.

"Exploded!"

"Such an explosion is very thorough, and it is on the surface of the river, I'm afraid it is impossible to find traces!" Qian Songtao, the leader of the task force, said, his tone was slight: "It seems that our decision to set up a task force is right, this thing looks small, and there may be a big problem behind it!" The use of robots to commit crimes is really rare! ”

Qian Songtao is a young policeman with a modern concept, about thirty-five years old, with a spiritual head, slightly dark skin, distinct facial features, and looks energetic.

Police officer Liao Yang is a little older, and he is a well-known calm faction in the police force, he shook his head and said: "It's not necessarily a robot or not, maybe it's just an ordinary device transformed from ********." ”

"It doesn't matter if it's a robot or an ordinary toy, if someone behind it deliberately uses it to harm people, it's deliberately hurting people!" Zuo Ling answered.

"Yes, let's find out who is behind the scenes before making a judgment! Although this Lei Tian's reputation is not very good, it is definitely not appropriate to blatantly harm people! Brother Wang's name is Wang Long, and he seconded.

Qian Songtao looked at Ning Hao thoughtfully, and said: "Teacher Ning, since the clue is broken in the future, then it always has a place to come, let's check forward to see if we can find out the path when it came!" ”

Ning Hao's plan was originally like this, but he didn't want to affect Qian Songtao's leading position in the team, and now he finally waited for the other party to speak, and immediately started the next step of the search.

There were no traces of insects in the corridor, and Wang Lung retrieved the video of the surrounding surveillance facilities, and through the analysis of the shadow spots on the walls of the Lei Building, he was lucky to find the handle of the insects.

"I got in through the crack in the window!" Qian Songtao said excitedly.

Ning Hao started from this point and went backwards, and finally locked a rental house in an urban village.

This is a six-storey old building built in the 80s, due to the humid climate in the Shuangqing area, the old house looks particularly dilapidated, the windowsill is full of sparse moss, and the corner of the stairs is cold and damp, as if someone has spit on the traces, which is disgusting.

Qian Songtao led the team to the door of room 601 on the top floor, and the knock on the door was sonorous and powerful.

The door was opened by a raunchy, depressed and restless man, and when he saw the police, his eyes were not surprised, as if he knew that this day would come sooner or later.

He kept rubbing his hands together and wringing his fingers.

"What's your name?" Wang Lung's voice was loud.

"Lei Xiaohua......" The man squeezed out three words between his teeth, and the volume was lower than that of a fly.

"Do you know what you've done?" Liao Yang's questioning was aggressive.

The man's eyelids drooped and he nodded.

Liao Yang turned around and nodded to Team Leader Qian and the others, Wang Long showed his documents, and a team of people entered the house to search.

The rental house is divided by the landlord, the area is only a dozen square meters, smoky, the pillows and quilts on the bed are messy, the furniture is pitiful, except for a curtain simple wardrobe, only a dirty computer desk, a paper cup on the table is full of cigarette butts, and an old computer may be the most valuable item in this room.

"What are you doing?" Liao Yang asked.

"Working at a subsidiary of the Lei Group......" The man's voice was kept low.

"Take out your ID card and take a look!"

Liao Yang checked it and confirmed that the certificate was genuine, and this man named Lei Xiaohua did not look cunning.

"Do you know Lei Tianyi?"

"He's my cousin next door......"

The cousin next door is the local title of Shuangqing, which means that the grandfathers of the two people are brothers.

Hearing the man's reply, everyone in the house was stunned, he worked in the Lei Group, and Lei Tianyi was still related, most of Lei Xiaohua was the initiator of the attack.