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Section 190 Computer 3D Craniofacial Restoration

 Shuangshan Temple is a large temple, located just outside the deserted Dabei Gate, very close to the city gate, but it is a place that few locals go to. The main purpose of this temple is to store coffins. Rich families in Guangzhou are among the elders.

After death, it often takes several years to find a good Feng Shui burial place, so the coffin is temporarily placed here. Foreign business travelers who died in a foreign land and were transported back to their hometown for burial, in addition to those with guild halls, most of them stayed here temporarily. "

The "street watchers" who detect "fallen bodies" and the unidentified corpses fished out of the water are also sent here first. After being inspected by the Yamen, they are then sent to the official land of Liuhuaqiao for cremation and burial.

This temple existed in the old time and space until the early 1950s, and its interior was eerie and terrifying. The ghosts who invaded Guangzhou City during the Second Crow Period labeled this place as "" without exaggeration.

After the Senate entered the city, they were no longer interested in such facilities, and the police station set up a morgue and a temporary forensic laboratory at Shuangshan Temple to specifically store and examine criminal cases and corpses found on the streets and waterways.

Inside and outside the temple gate, whether it is the young forensic doctor from Lingao, the old widowers retained by the city of Guangzhou, the monks retained by the temple, the widowers carrying the corpses, or the family members coming to identify the corpses, it is a lively but not hectic place.

The scene made this dark and deserted place far away from the world seem to have turned into a lively market.

Because this place is already under the management of the police system, there are two policemen holding long sticks standing guard at the door as usual. The policemen take out their IDs and show them to the gate guard before they can enter.

Although Shuangshan Temple is large, the buildings inside are very dilapidated. Otherwise, it would not be reduced to something close to a yizhuang. After the police station took over the place, it slightly repaired the house and remodeled some buildings to adapt to new uses.

In one of the courtyards, Su Wan, the chief medical examiner of the Senate Police System, was wearing a full-length oilskin apron, high oilskin boots, a cylindrical oilskin hat, and a gauze mask, holding hands clasped

A large handle with a long handle was carefully stirring the boiling water in the large pot on the high fire. From time to time, a few oily flowers appeared, and a strange fragrance floated in the air.

In the yard, there are more than a dozen newly built brick stoves lined up in a row, with iron pots on them, each one rolling and steaming. If it weren't for the neatly arranged human bones on the oilcloth sheets on the ground, most of the people who saw them at first glance

I thought some old wealthy family had hired a chef from the shed to do some work.

When the young policeman came in, Forensic Doctor Su was picking up a piece of meat bone with a picket and using iron chopsticks to check the degree of doneness. The young man smelled the strong fragrance in the air and couldn't help but drool in his mouth. But when he thought about this pot

The cold air from the stewed food rushed straight from his back to the back of his head, and the chilling feeling made him feel uncomfortable all over!

Just when he was nervous, Dr. Su, who was next to Leng Buding, was holding a big spoon and patted the young man from the back, "Hey! Get out of the way! What are you doing, crowded here? Didn't you look at what we were busy with! What, something happened?

?”

"Send a report! Chief Mumu Mumu said, "The little policeman was so nervous that everyone stammered," Chief Mumu said. The skulls of middle-aged men were found at the scene. I hope you can have facial reconstruction as soon as possible.

Work!"

"What? Did you make a new discovery?"

The young man shook his head, indicating that he was not sure.

Chef Su flipped through the record book at hand, made a mark with a pen, then pointed at a large pot on the edge of the corridor with a large spoon and said, "Here, sample No. 461 is removing the meat in pot No. 15, and it should be out in a while.

The pot is gone.

The young man secretly licked his lips and suppressed the strange feeling in his heart, "I'll go back first. Chief Mumu is still waiting for news!"

Forensic Doctor Su shook his head, "Oh! So nervous? I have never seen a big scene!"

After hearing these words, the old men working in the courtyard sighed to themselves that the psychological quality of the Song Dynasty expert was so good! There was a big pot set up in the yard, and this kind of horrific scene was stewed in the pot. It was me who had been examining corpses all his life.

The old guy can’t stand it either!

After the initial chaos, Shuangshan Temple went from the stench of scattered corpse fragments to the sky, to the strange smell of Dr. Liu spraying disinfectant, to the smell of meat all over the hospital by Forensic Doctor Su, and the treatment of the working subjects of the forensic doctors and widowers.

The corpses were examined, numbered one by one according to regulations, and preliminary processing was done. Because there were so many corpses that the temporary cold storage originally built could not accommodate them, so ice cubes had to be temporarily transported from Hong Kong for proper storage. They were used to remove the tissues from the corpses.

Extra-large iron pots were not enough: most people did not have such a large pot, and the foundry shop would not make such a large pot without ordering it. Su Wan had to call the police station to try to buy it from the cook who ran the greenhouse.

It is a traditional method to remove human tissue from bones by boiling it, but it will be destroyed after boiling. Forensic doctors in the old time rarely did this, and often used scavenging insects to remove it. She can't do the test now, so she doesn't need to worry.

.

The most difficult thing is that there are too few technicians. Including Liu San and his apprentices who came to help, they can only complete the autopsy examination of a few corpses every day. At this time, forensic doctor Su can only urge everyone to work harder.

While working, I first picked up the "artifacts" that were more suspicious and started investigating.

As the investigation deepened, the identities of several adult corpses, including the suspicious middle-aged man, became the focus of the task force's investigation. However, the messy crime scene, the cruel methods of committing the crime, and the fact that the crime had been committed at the time of the incident had

The highly deteriorated "artifact" samples, coupled with the complete lack of knowledge of the victim's social network, make the traditional identification of corpses by acquaintances difficult to achieve.

Fortunately, there is skull restoration technology, also called facial reconstruction. It is a technology that restores the basic appearance of the victim based on the shape of the human skull. This technology is based on the soft tissue of the human face at a specific location.

The thickness is basically certain. The shape of the skull will, to a certain extent, reflect what the person looks like. Coupled with anatomical evidence, such as health status, nutritional status, life experience, etc., these can add to the appearance.

Certain changed factors are combined to make corrections to the simulation model, and finally form the simulated appearance of the victim.

Skull restoration was initially done manually by experienced forensic doctors. After removing the remaining tissue, cleaning, and turning the mold, steps such as shaping, trimming, and coloring were also performed directly on the original bones to finally form a fitted restored head. Among them, shaping is

The most important process, which also requires the most experience. The specific method is to use plastic lines to paste on the main parts of the skull to mark the specific muscle height and shape, and then fill in the soil according to the rough outline formed by these plastic lines. Naturally, this work

It depends on the forensic doctor's personal experience and mastery of human anatomy. If this step goes wrong, it will have a great impact on the final image.

A more advanced method is the computer-assisted craniofacial reconstruction system. Combined with optical scanning and 3D printers, a three-dimensional simulated head can be directly printed out without destroying the original "artifact". There are many ancient human skulls discovered in archaeology.

This method is used to simulate and reconstruct the appearance during life.

Forensic doctor Su brought a set of computer-assisted craniofacial reconstruction system software before traveling through time, but there was no optical machine here, nor was there a 3D printer. So the forensic doctor used a combination of manual and computer methods to first remove the remaining tissue, then scan the skull shape, and combine

Computer simulation and manual shaping and trimming on the model.

According to Forensic Doctor Su, firstly, it can practice the skills to prevent them from feeling rusty after not practicing for many years; secondly, it can train newcomers, and a group of apprentices must go through practice to become mature; thirdly, it also shows the omnipotence of the forensic doctors of the Song Dynasty and can effectively deter lawbreakers.

.

In order to save the service life of electronic equipment, especially 3D scanners, Su Wan generally does not use these equipment. He mainly relies on his own apprentices to teach him step by step. Although the accuracy is not very good, he can still get a rough idea.

However, there were too many corpses to be examined this time, and the case was particularly serious, so she decided to sacrifice this artifact.

The trouble is that the battery on this artifact has basically reached the end of its life. So she has to carry a black box similar to a large trolley suitcase: it also has trolleys and casters. But it is much heavier than a suitcase. This thing is

The so-called "Zhong's No. 5 mobile power pack".

The original intention of manufacturing this kind of power pack is to power mobile electronic equipment. After all, even under the rule of the Senate, only Lingao has a stable power supply. Therefore, "mobility" was considered.

Despite its astonishing size, the amount of power it provides is really impressive. In order to ensure the continuity of power consumption, Su Forensic Medicine’s system consists of two sets of “mobile power packs” and a “hand-cranked generator”. Mu Min specially sent

Several policemen charged her for shaking the generator.

Since Mu Min requested that No. 461 be dealt with first, she would do the restoration of the skull first.

At this time, the little apprentice who was responsible for the observation came over and reported: "Master, pot No. 15 is almost ready!"

"Okay." Su Wan waved his hand, "Take it out and prepare to turn it into molds!"

The young apprentice picked up the skein, lifted up the tumbling bones in the pot, drained the water, and spread them out on the big oilcloth on the table. Wu Zuo watched from the side, then picked them up and put them back into the pot to cook. The bones were all covered with water.

The young apprentice quickly found skull No. 461 by hanging small iron pieces with numbers on the wire.

When the skull was fished out of the pot and stewed over a high fire, the remaining tissue had separated from the bones, and the skull was completely revealed.

"Come! Let me see what you are like!" Forensic Doctor Su held up the wooden tray and carefully looked at the semi-finished product in front of him, "Work has started! The task force is anxious to get the results!" To be continued.

...


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