Refraction of Future Network Camera Shapes When New Sensors Are Developed
2019-03-24 09:32:40
China Security Exhibition Network News With the improvement of network camera technology and the improvement of product performance and quality, the subsequent promotion and application of network cameras will be more extensive. At present, the most important market for network video surveillance is concentrated in several major industries such as safe cities, finance, transportation, education, power, energy, operators, and prisons. With the advancement of science and technology, the technological content of network cameras has gradually increased. Recently, a new type of sensor is being developed. The success of the new sensor represents the shape of a new type of network camera in the future.
Future Network Camera Prototype Exploration
Many people are frustrated by the video cameras they were once exposed to. Perhaps the most irritating thing is that you can't look directly at someone when you are video chatting. And as things such as somatosensory games change the way we interact with computers, the cameras installed on your monitor or on your mobile phone seem to be obviously something of the 20th century. This new type of sensor is still a developing research, but it represents the shape of future network cameras. It is in the early stages of development, and they haven't named it yet.
The film sensor that casts the image (right) and the image it outputs (lower left) (Source: Tencent Technology)
The test facility of the research laboratory projects a picture onto the sensor (Source: Tencent Technology)
This transparent film can intercept a small amount of light passing through it and guide it toward the edge of the sheet. A large number of photoelectric sensors there acquire light, and through some complicated mathematical calculations the light hits the light and darkness of different sensors, and they can reconstruct the image on the entire sheet. Of course, this image must be focused on the display itself, which means that the image must be concentrated on a piece of film or a traditional image sensor.
Because you can't put a huge camera in front of the monitor (or project the picture directly on film like their test device), this new sensor may get a rather obscure image of the object in front of it. But you don't always need a clear picture, such as gestures, or normal background lighting, and the user's location. And it does not have to be installed on the screen. It can be easily placed on the window, on the table, making them a photosensitive surface. The current resolution is quite limited, it can only produce grayscale images, but there are many noises. But this is just a proof of concept, improving image quality will be the next step in the research.
Five characteristics of webcam
The construction of a safe city led by government agencies and public security agencies is currently a field in which network products are implemented relatively quickly and the number of products used is also relatively large. Network monitoring has become the primary choice for most projects. Most of the monitoring devices in Pingan City's projects are network cameras. Using standard-definition and high-definition network cameras with a fusion approach, the network coverage without blind spots is monitored. In the development of network cameras, the following features are highlighted:
1, high-resolution into the most basic requirements
In the age of analog surveillance, users have long complained about vague and noise-filled images. At that time, the best camera on the market was only D1, and the theoretical maximum number of pixels was only 400,000. Surveillance cameras are the largest assistants in security and analog surveillance products can no longer meet the needs of users. Therefore, “high-definition†has become the largest demand, and with high-definition picture quality, low illumination, wide dynamic, intelligent, etc. Only higher-level demands can be realized before they have application value.
High-definition screens mainly rely on technological breakthroughs, starting with improving the quality of video sources. The digital network camera adopts progressive scanning relative to the analog camera. The commonly used CCD image sensor adopts AD conversion, the optical signal enters, and the digital signal output, avoids repeated AD conversion, and the image quality is less damaged, and the color reproduction and signal resistance are also provided. Excellent performance in interference.
2, low illumination accelerated popularization and application
With the increasing use of high-end private areas for security surveillance, the range of applications of cameras has become more widespread. Many poorly monitored and dimly lit areas also require the installation of versatile cameras, especially low-light cameras. In addition, in order to meet the needs of all-weather 24-hour monitoring, new low-illuminance cameras have become the new darling of the surveillance market. At present, low-light cameras have been widely used in financial, cultural, hotel, office, residential property management and other fields.
Now, low-light high-definition network cameras have emerged. These cameras use a number of brightening technologies. In harsh monitoring environments, the effect of low illumination far exceeds that of analog cameras. They also have a prominent advantage, that is, ordinary cameras are low. Under the conditions of illumination, the color screen fades to a black and white image, and this product still displays a color image in low illumination, whether it is a static image or a dynamic image, it can show a strong sense of hierarchy, true color reproduction, and less noise. There are no trailing phenomena and other advantages. Industry experts believe that the improvement of low-light performance will accelerate the popularity of high-definition network cameras and accelerate the process of the era of high-definition surveillance.
3, intelligence becomes the main trend
Intelligent monitoring can identify behaviors and types from complex data analysis and provide operational commands, data, and information to achieve intelligent behavior such as alarms, reminder attention, and intelligent retrieval. If traditional video surveillance is a means to search for criminal suspects afterwards, then intelligent surveillance is an auxiliary means to prevent crimes from occurring, thereby greatly improving monitoring efficiency. Moreover, because the smart device can selectively transmit video, it effectively saves bandwidth and greatly increases the available network bandwidth. Today, intelligent monitoring has become an important topic for monitoring technology development and market demand.
4, ISP (ImageSignalProcessing) is integrated by the encoding chip
By integrating the ISP, not only can significantly reduce the system cost, but also greatly enhance the stability of the video and optimize the optical performance of the image. This has an important role to play in improving the imaging quality of HD network cameras. Currently, there are many high-definition IP solutions on the market, including Hass, TI, NXP, Trident, Techwell, Zhiyuan, and many other chip manufacturers have proposed their own characteristics of high-definition IP solutions.
5, standardization
Whether it is ONVIF or PSIA, it is a standard formed by the spontaneous organization of enterprises, but from the perspective of getting more and more companies' response, it still has very important significance. In the next few years, standardization will become the passport for HD network cameras to reach the market.
About Network Camera
Network Cameras (8 photos) Network cameras, also known as IPCAMERA (IPC for short), are composed of network coding modules and analog cameras. The network coding module encodes and compresses the analog video signal collected by the analog camera into a digital signal so that it can directly access the network switching and routing equipment. The network camera incorporates an embedded chip and uses an embedded real-time operating system. Network cameras are a new generation of products combining traditional cameras with network video technology. The video signal sent from the camera is digitized and compressed by an efficient compression chip and transmitted to the Web server via the network bus.
Users on the network can directly use the browser to view the camera images on the Web server. The authorized users can also control the actions of the camera pan-tilt lens or operate the system configuration. Network cameras can be more simple to implement monitoring, especially remote monitoring, easier construction and maintenance, better support for audio, better support for alarm linkage, more flexible video storage, richer product selection, and higher video quality And more perfect monitoring and management. In addition, IPC supports WIFI wireless access, 3G access, POE power supply (network power supply) and fiber access.
Future Network Camera Prototype Exploration
Many people are frustrated by the video cameras they were once exposed to. Perhaps the most irritating thing is that you can't look directly at someone when you are video chatting. And as things such as somatosensory games change the way we interact with computers, the cameras installed on your monitor or on your mobile phone seem to be obviously something of the 20th century. This new type of sensor is still a developing research, but it represents the shape of future network cameras. It is in the early stages of development, and they haven't named it yet.
The film sensor that casts the image (right) and the image it outputs (lower left) (Source: Tencent Technology)
The test facility of the research laboratory projects a picture onto the sensor (Source: Tencent Technology)
This transparent film can intercept a small amount of light passing through it and guide it toward the edge of the sheet. A large number of photoelectric sensors there acquire light, and through some complicated mathematical calculations the light hits the light and darkness of different sensors, and they can reconstruct the image on the entire sheet. Of course, this image must be focused on the display itself, which means that the image must be concentrated on a piece of film or a traditional image sensor.
Because you can't put a huge camera in front of the monitor (or project the picture directly on film like their test device), this new sensor may get a rather obscure image of the object in front of it. But you don't always need a clear picture, such as gestures, or normal background lighting, and the user's location. And it does not have to be installed on the screen. It can be easily placed on the window, on the table, making them a photosensitive surface. The current resolution is quite limited, it can only produce grayscale images, but there are many noises. But this is just a proof of concept, improving image quality will be the next step in the research.
Five characteristics of webcam
The construction of a safe city led by government agencies and public security agencies is currently a field in which network products are implemented relatively quickly and the number of products used is also relatively large. Network monitoring has become the primary choice for most projects. Most of the monitoring devices in Pingan City's projects are network cameras. Using standard-definition and high-definition network cameras with a fusion approach, the network coverage without blind spots is monitored. In the development of network cameras, the following features are highlighted:
1, high-resolution into the most basic requirements
In the age of analog surveillance, users have long complained about vague and noise-filled images. At that time, the best camera on the market was only D1, and the theoretical maximum number of pixels was only 400,000. Surveillance cameras are the largest assistants in security and analog surveillance products can no longer meet the needs of users. Therefore, “high-definition†has become the largest demand, and with high-definition picture quality, low illumination, wide dynamic, intelligent, etc. Only higher-level demands can be realized before they have application value.
High-definition screens mainly rely on technological breakthroughs, starting with improving the quality of video sources. The digital network camera adopts progressive scanning relative to the analog camera. The commonly used CCD image sensor adopts AD conversion, the optical signal enters, and the digital signal output, avoids repeated AD conversion, and the image quality is less damaged, and the color reproduction and signal resistance are also provided. Excellent performance in interference.
2, low illumination accelerated popularization and application
With the increasing use of high-end private areas for security surveillance, the range of applications of cameras has become more widespread. Many poorly monitored and dimly lit areas also require the installation of versatile cameras, especially low-light cameras. In addition, in order to meet the needs of all-weather 24-hour monitoring, new low-illuminance cameras have become the new darling of the surveillance market. At present, low-light cameras have been widely used in financial, cultural, hotel, office, residential property management and other fields.
Now, low-light high-definition network cameras have emerged. These cameras use a number of brightening technologies. In harsh monitoring environments, the effect of low illumination far exceeds that of analog cameras. They also have a prominent advantage, that is, ordinary cameras are low. Under the conditions of illumination, the color screen fades to a black and white image, and this product still displays a color image in low illumination, whether it is a static image or a dynamic image, it can show a strong sense of hierarchy, true color reproduction, and less noise. There are no trailing phenomena and other advantages. Industry experts believe that the improvement of low-light performance will accelerate the popularity of high-definition network cameras and accelerate the process of the era of high-definition surveillance.
3, intelligence becomes the main trend
Intelligent monitoring can identify behaviors and types from complex data analysis and provide operational commands, data, and information to achieve intelligent behavior such as alarms, reminder attention, and intelligent retrieval. If traditional video surveillance is a means to search for criminal suspects afterwards, then intelligent surveillance is an auxiliary means to prevent crimes from occurring, thereby greatly improving monitoring efficiency. Moreover, because the smart device can selectively transmit video, it effectively saves bandwidth and greatly increases the available network bandwidth. Today, intelligent monitoring has become an important topic for monitoring technology development and market demand.
4, ISP (ImageSignalProcessing) is integrated by the encoding chip
By integrating the ISP, not only can significantly reduce the system cost, but also greatly enhance the stability of the video and optimize the optical performance of the image. This has an important role to play in improving the imaging quality of HD network cameras. Currently, there are many high-definition IP solutions on the market, including Hass, TI, NXP, Trident, Techwell, Zhiyuan, and many other chip manufacturers have proposed their own characteristics of high-definition IP solutions.
5, standardization
Whether it is ONVIF or PSIA, it is a standard formed by the spontaneous organization of enterprises, but from the perspective of getting more and more companies' response, it still has very important significance. In the next few years, standardization will become the passport for HD network cameras to reach the market.
About Network Camera
Network Cameras (8 photos) Network cameras, also known as IPCAMERA (IPC for short), are composed of network coding modules and analog cameras. The network coding module encodes and compresses the analog video signal collected by the analog camera into a digital signal so that it can directly access the network switching and routing equipment. The network camera incorporates an embedded chip and uses an embedded real-time operating system. Network cameras are a new generation of products combining traditional cameras with network video technology. The video signal sent from the camera is digitized and compressed by an efficient compression chip and transmitted to the Web server via the network bus.
Users on the network can directly use the browser to view the camera images on the Web server. The authorized users can also control the actions of the camera pan-tilt lens or operate the system configuration. Network cameras can be more simple to implement monitoring, especially remote monitoring, easier construction and maintenance, better support for audio, better support for alarm linkage, more flexible video storage, richer product selection, and higher video quality And more perfect monitoring and management. In addition, IPC supports WIFI wireless access, 3G access, POE power supply (network power supply) and fiber access.
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