Detailed instructions for improving the quality of video from a CCTV camera
Calls to technical support begin after the video surveillance system is installed and the camera has recorded the incident. Everything would be nice, but neither faces nor license plates are visible on the footage.
The problem of how to improve the quality of video from a CCTV camera is solved in two ways. In most cases, they first try to make the settings themselves. It’s good if the attempt is successful. Another option is to immediately call the service company to the customizers.
Processing with software packages
For editing and processing video streams, special programs are used, which include many functions and tools that allow you to significantly improve the video picture. Consider the three most popular programs and their capabilities.
What determines the quality of the video and can it be changed?
A typical mistake. the camera shows well, but nothing in the archive can be made out. Poor quality in freeze frames, everything is blurry. there is no sense in recording.
The effect is especially noticeable at night.
In video cameras, this is the charge accumulation time.
If the light is insufficient, the exposure time can be automatically lengthened. The Sutter parameter is set in fractions of a second. To improve your video, pay attention to the following points:
How to Enhance Security Camera Footage of a Face with Ikena Forensic
- Condition of cable products. Even minor damage to the cable will distort the screen. If one of the cores is frayed and touches metal structures, the cable from the metal and the antenna collects interference and displays it on the screen;
- Supply voltage. Basically, cameras are powered from 12 V. Decreasing the voltage even to 11.8 volts can cause poor quality;
- Condensation inside the chamber. The water that collects inside the camera first distorts the view, then the equipment breaks down.
You can make a high-quality video, but you need to understand that each case is individual.
The parameters are different everywhere. To find the cause, analyze and act on the basis of the situation.
Adobe premiere
This is a professional video editor with a large number of plug-ins, tools for editing video stream and improving the quality of video from a CCTV camera.
Video processing can be carried out on a regular computer on which the Adobe Premiere program and the additional Neat Video plug-in are installed. With its help, you can receive a video stream from the camera to the editor.
The capabilities of the program are very wide, the user will be able to:
- change brightness and contrast;
- adjust the saturation of the color gamut;
- remove video noise;
- improve the sharpness of the image.
The program has the ability to both manual image correction and automatic mode. It provides for work in a square with a size of 128×128 pixels.
Improving the quality of the video picture is possible up to 70%. There is also a gentle correction mode used in cases where the capabilities of the hardware system of computer technology are limited.
Ways to improve the quality of video from CCTV cameras
There are times when even a properly selected surveillance camera does not provide the required video detail. In this case, only improving the quality of video from CCTV cameras can help.
There are two ways by which you can get the required information from the video: frame-by-frame viewing or processing the video stream with special software. Consider the features of each of these methods.
Edius
This program does an excellent job of correcting video streams recorded in different formats. It supports multi-layer editing. videos of different formats can be placed on one timeline of this program.
This is convenient because you can edit one video sequence while viewing another one shot from a different angle using other cameras.
Edius belongs to the non-linear video editors that work under the Windows operating system.
A distinctive feature of this package is the reduced load on the hardware platform of the computer, due to which the preview of edited videos is improved (without freezing when scrolling). The program also supports the ability to process uncompressed video in real time.
The use of special software and hardware can significantly improve the quality of video received from surveillance cameras.
Thanks to this process, you can get good quality videos that will help you sort out a difficult situation.
Modern tools for improving the quality of video images allow recognizing faces, license plates and other small details even on low-quality images.
Color problem
- The light that the computer monitor emits, despite its low intensity, can distort the picture that is broadcast in the chat. Your face will be painted the same color that prevails on the monitor.
The main problems and ways to solve them
Glasses problem
Decision
- You can improve the image by diffusing the lighting a little. If your lamp does not have a power regulator, a sheet of tracing paper will come to the rescue. Tape it to the lampshade and the light will soften. Things will be much easier if you are sitting in front of a webcam next to a light wall. You just need to turn the lamp away from your face and point it at the wall. the light that will be reflected from it will have enough strength to cope with the monitor effect, and the picture quality will become clearer and more balanced.
Decision
- To avoid this, in the monitor settings, you need to reduce its brightness. As a rule, if you decrease the brightness by 25-30%, the reflection in the glasses disappears. It will take no more than 2-3 minutes to get used to a slightly darkened image.
The problem is in the light
The problem is white
- Despite all the efforts, your face, for some reason, is painted in the wrong color. This could happen due to the peculiarities of the webcam itself. It’s all about the “white balance”. in order to correctly display the color gamut, any digital camera needs to know what white looks like. And if it is not, then the brightest spot is taken as the standard of whiteness in automatic mode, regardless of what color it is. Because of this, the display quality of other colors suffers.
How to improve the quality of video from a CCTV camera
The first criterion that determines the quality of a video surveillance system is, of course, the image. over, the assessment of the video broadcast from the camera can be subjective or objective.
In the first case, the clarity of the image, color rendition, etc. are visually assessed.Of course, the opinions of different people may not coincide, so it is more convenient to use a classification that takes into account the resolution of CCTV cameras.
The table below lists nearly all of the resolution standards in use today, as well as the video quality letters. Please note. the common abbreviation HD is a very specific parameter, and not a collective designation of high-quality CCTV cameras.
- analog;
- network (IP);
- AHD.
By the way, a few years ago there was an opinion that IP surveillance would replace analog systems and one of the reasons was the quality of the picture. Indeed, the “analog” has been losing ground recently, but in competition not with IP, but with AHD systems. The resolution of the latter for today is 720p and 1080p (the first two lines in the table).
weak decoding capabilities of NVR
If an NVR is used to record video, the smoothness of the image may also be affected by its video processing characteristics. If the incoming video stream exceeds the maximum processing capacity of your DVR, or if the processor has a weaker performance, there may be problems with the image as well. Therefore, when choosing equipment, you should give preference to a high-quality video recorder, and also make sure that the incoming video stream does not overload the system.
QUALITY OF VIDEO SURVEILLANCE CAMERA
Since quality is compliance with the requirements of a whole set of parameters. then a good CCTV camera should be characterized by more than resolution. over, for a number of tasks, the “average” resolution is quite enough, but more on that in the article at the specified link.
Speaking about the set of characteristics of video cameras, it should be noted:
- sensitivity (ability to work in low light conditions);
- the presence of an on-screen display (OSD). this option allows you to fine-tune each specific camera as part of a video surveillance system;
- a set of all kinds of automatic adjustments (gain, white balance, backlight compensation, etc.).
It’s no secret that the quality of a product as a whole is determined by its components. For a video camera, the type and manufacturer of the matrix is very important. an element that converts an image into an electrical signal. The recognized brand here is Sony.
This, of course, does not mean that a camera with a sensor from this manufacturer. even assembled in any other country. is unambiguously the leader, but, most likely, the image quality of such a device, other things being equal, will be better.
network video camera problems
Entry-level IP surveillance cameras often lack power, which can result in high quality image processing causing time lag and jagged video signals. When deciding to buy network surveillance cameras, choose well-known brands and do not take risks if their suspiciously low price makes you doubt.
In case you already have a surveillance video camera, you can lower the bit rate or resolution. this will help reduce the delay in video transmission.
HIGH QUALITY VIDEO SURVEILLANCE
If we talk about the quality of the video surveillance system as a whole, then we should not also forget about:
- information recording and storage equipment (recorders, video servers);
- display devices (monitors);
- additional equipment, including switching.
As for the first point, it is quite obvious that in order to obtain a high quality video surveillance system, it is necessary to ensure the mutual correspondence of the parameters of all the equipment included in the system.
How to Enhance Low Quality CCTV Footage of a License Plate with MotionDSP Forensic
It is quite obvious that if the resolution of the video camera significantly exceeds the analogous capabilities of the DVR and (or) monitor, then some of the megapixels will simply be superfluous. The redundancy of the capabilities of one or another component leads to unjustified costs for the purchase of equipment.
The second point is the monitor. For video surveillance systems with an image quality of the order of 720p or 1080p, choosing a model with the required resolution will not be a problem. But if IP video surveillance is planned for the installation with a resolution of 3 megapixel cameras and higher, then the choice of a monitor should be approached more responsibly.
It should also not be assumed that the larger the screen size, the higher its quality. The defining parameter here is the resolution.
Additional equipment includes network switches (for IP systems), video transceivers, etc.
To obtain a high-quality image, you should pay attention to the characteristics of the connecting cables and wires. Features of the use of cable and wire products are described on this page.
it is worth saying that the quality of even the most beautiful equipment can be nullified by illiterate design, installation and operation.
© 2014-2019. All rights reserved.
Site materials are for informational purposes only and cannot be used as guidelines and normative documents.
05/03/15 12:38 PM Reply to a message How can you improve the clarity of a video surveillance camera? by romlih
Havingness-oriented people rely on what they have, being-oriented people rely on what they are. E. Fromm
05/04/15 01:02 Reply to message Re: How can you improve the clarity of the video surveillance camera? by Barister
05/04/15 07:21 Reply to message Re: How can you improve the clarity of the video surveillance camera? by romlih
probably any video editor. In Adobe After Affects and Adobe premier pro, it seems that the programs are available for free use within a month. you can download them from the official website of adobe, the programs are very demanding on the hardware of the companion. Although. if the resolution there is not high. maybe they will not be so voracious. there is also a photoshop. You can’t edit the video with Photoshop, probably, but if you throw it into Photoshop, it will make a storyboard, if there is no powerful computer, it is much easier to work with one frame than with the whole video. Plus it’s easier to find help with Photoshop. just more people are familiar with it than with video processing programs.
In addition to the Adobe programs, there are also popular programs: Sony Vegas, Edius and a program usually recommended for beginners. Pinnacle.
Havingness-oriented people rely on what they have, being-oriented people rely on what they are. E. Fromm
HD quality IP surveillance cameras can significantly increase the security of the site where they are used. Today, the video surveillance industry is moving from analog technology to HD solutions, and not everyone knows how to properly handle new systems. When trying to install and use an IP video surveillance system, users inevitably face certain problems.
In this article, we will tell you the reasons why your network (IP) surveillance cameras may not live up to their expectations.
poor quality ethernet cable
A poor quality Ethernet cable is one that does not use copper. As a rule, Ethernet cable, produced strictly according to international standards, provides a transmission distance of up to 100 meters. If you use a poor quality Ethernet cable, the transmission distance will be reduced. At the beginning of using the system, the image may be normal, but over time, the cable cores will oxidize, which can easily lead to the loss of data packets. It is very important to choose a good quality Ethernet cable.
the computer hardware is not up to the required level
When a computer and video management software are used to record video, the image is greatly influenced by the CPU, GPU, memory cards, and so on. If the CPU, GPU and memory capacity are insufficient, connecting more video cameras will result in jerky video recording. Updating your computer hardware can quickly fix this problem.
If this problem occurs when users are watching videos on their web browsers (Internet Explorer, Chrome, Firefox, Safari, Opera), they can try disabling hardware acceleration in their web browsers. Hardware acceleration is a feature of modern web browsers, it allows web browsers to move all graphics from the CPU to the graphics (GPU).
Detailed instructions for improving the quality of video from a CCTV camera
Calls to technical support begin after the video surveillance system is installed and the camera has recorded the incident. Everything would be nice, but neither faces nor license plates are visible on the footage.
The problem of how to improve the quality of video from a CCTV camera is solved in two ways. In most cases, they first try to make the settings themselves. It’s good if the attempt is successful. Another option is to immediately call the service company to the customizers.
We consider the details frame by frame
Video analytics begins with frame-by-frame viewing of details. The video is split into frames using graphic editors.
Instructions for zooming in, adjusting the clarity using Movavi as an example:
Click on the icon in the upper left corner and download the video for processing.
In manual setting, the video is improved by pressing the left mouse button on the “Manual Correction” button. Moving the sliders, the frames are smoothed as much as possible.
Before saving, select the format, quality, frame rate, save folder and file name.
How to improve video quality from CCTV cameras?
What determines the quality of the video and can it be changed?
A typical mistake. the camera shows well, but nothing in the archive can be made out. Poor quality in freeze frames, everything is blurry. there is no sense in recording.
The effect is especially noticeable at night.
In video cameras, this is the charge accumulation time.
If the light is insufficient, the exposure time can be automatically lengthened. The Sutter parameter is set in fractions of a second.
To improve your video, pay attention to the following points:
- Condition of cable products. Even minor damage to the cable will distort the screen. If one of the cores is frayed and touches metal structures, the cable from the metal and the antenna collects interference and displays it on the screen;
- Supply voltage. Basically, cameras are powered from 12 V. Decreasing the voltage even to 11.8 volts can cause poor quality;
- Condensation inside the chamber. The water that collects inside the camera first distorts the view, then the equipment breaks down.
You can make a high-quality video, but you need to understand that each case is individual.
The parameters are different everywhere. To find the cause, analyze and act on the basis of the situation.
Overall improvement of video recording with software
If the camera writes too small a picture, you can improve the quality of the video from the CCTV camera using programs, video editors and auxiliary tools. Everyone finds the best bundle for themselves.
Premier handles a variety of file formats. The most popular professional video editor with rich functionality. 64-bit support accelerates performance.
-
Adobe Premiere and the Neat Video plugin are downloaded and installed on your computer.
After activating the utility, the video from the camera opens.
The Neat Video plugin interface uses the Shadow Highlight feature.
Settings are made manually, the check mark in the box opposite the AutoAmount option is removed.
Shadow Amount and Blend with original are set to improve brightness and contrast.
In automatic mode, the plug-in works in the area of 128×128 pixels. It is highlighted with a square and informs about the configuration. Normal result from 70%.
- You need to close the settings window,
- find the corresponding fragment with a homogeneous area
- and again go to the Neat video settings and generate an auto profile.
- in the filter settings, highlight Noise Filter Setting,
- click in turn clip preset — advanced —- remove only half of weaker noise (keep more detail).
A gentle video enhancement preset is selected. Small images appear and sound interference is removed.
Hardware works on common computers, compatible with popular operating systems.
Highly functional editor enjoys well-deserved popularity, has an unlimited number of tracks.
Unprocessed areas are saved in the exported file without recompression and loss of quality. Supports various formats, processes the format in real time.
Handles different video formats well. Supplied with editing and broadcasting complexes.
The preview is better than other editors. Has support for multi-layer editing. Can combine different formats and resolutions on one timeline .
Supports real-time processing of uncompressed video. Qualitatively improves recording from CCTV cameras.
Improving video quality by correctly adjusting the exposure tool in automatic mode:
-
To recognize objects, it is recommended to limit the time to 1 / 100th of a second or less, depending on the speed of movement of objects in the observed scene.
You may have to pay extra to increase the noise level at night.
The modern world is covered by video surveillance systems. Most of the security problems are solved. As with any system, there are flaws. Manufacturers are constantly improving devices, eliminating errors.
While design engineers are optimizing video surveillance systems, minimal knowledge of video surveillance systems administration is simply necessary in case of difficulties with setting up cameras, switches and video surveillance system servers.
Frame-by-frame view
When watching a video, 25 frames change in one second, some of which are of poor quality.
As a result, in the overall picture, an opinion is created about the insufficient quality of the footage, since it is almost impossible to recognize small details.
A frame-by-frame analysis of the video sequence and the correction of frames of poor quality will help correct this situation. Using special editors, the analyzed video is decomposed into separate frames.
For those of them that have poor clarity, you need to correct it using special tools of video editors or online services to improve the quality of images. Based on the corrected images, a new video with improved quality is generated.
Edius
This program does an excellent job of correcting video streams recorded in different formats. It supports multi-layer editing. videos of different formats can be placed on one timeline of this program.
This is convenient because you can edit one video sequence while viewing another one shot from a different angle using other cameras.
Edius belongs to the non-linear video editors that work under the Windows operating system.
A distinctive feature of this package is the reduced load on the hardware platform of the computer, due to which the preview of edited videos is improved (without freezing when scrolling). The program also supports the ability to process uncompressed video in real time.
Ways to improve the quality of video from CCTV cameras
There are times when even a properly selected surveillance camera does not provide the required video detail. In this case, only improving the quality of video from CCTV cameras can help.
There are two ways by which you can get the required information from the video: frame-by-frame viewing or processing the video stream with special software. Consider the features of each of these methods.
Adobe premiere
This is a professional video editor with a large number of plug-ins, tools for editing video stream and improving the quality of video from a CCTV camera.
Video processing can be carried out on a regular computer on which the Adobe Premiere program and the additional Neat Video plug-in are installed. With its help, you can receive a video stream from the camera to the editor.
The capabilities of the program are very wide, the user will be able to:
- change brightness and contrast;
- adjust the saturation of the color gamut;
- remove video noise;
- improve the sharpness of the image.
The program has the ability to both manual image correction and automatic mode. It provides for work in a square with a size of 128×128 pixels.
Improving the quality of the video picture is possible up to 70%. There is also a gentle correction mode used in cases where the capabilities of the hardware system of computer technology are limited.
Improving video quality from CCTV cameras: how to fix previously recorded video?
Video surveillance systems are an effective means of security for various objects: shopping centers, parking lots, bars and other public places.
You can recognize a hooligan or an intruder from archival video materials, “hot on the trail” you can investigate a crime, quickly resolve a controversial situation.
It often happens that the video image is of poor quality. In this case, only improving the quality of video from CCTV cameras will help.
Vegas Pro
This is another professional video editor for editing and editing footage from surveillance cameras.
The program effectively copes with the correction of fuzzy images in real time. Vegas Pro supports various compressed video formats, and also successfully works with uncompressed video stream.
To simplify the process of editing and processing video data, the program supports work with multiple computer processors and two monitors.
Vegas Pro can work with an unlimited number of tracks, transcoding a video stream with different codecs.
Processing with software packages
For editing and processing video streams, special programs are used, which include many functions and tools that allow you to significantly improve the video picture. Consider the three most popular programs and their capabilities.