The world of security cameras and surveillance systems is expanding like never before. These cameras today come in a wide variety in terms of features and hardware. Look at the security cameras’ inside. You can find a structure of reflective photodiodes that build a component called an image sensor.
It has one of the two types of image sensors – CMOS or CCD based on your security camera specifications. They are different kinds of photodiodes and work much like one another. They are responsible for the conversion of light into electrons to create an image that can be displayed.
In this guide, we talk about the progressive scan CMOS and try to understand how it works for the image sensor. We also discuss how CCD and CMOS CCTV differ from each other and which one is better.
CMOS or Complementary Metal-Oxide Semiconductor image sensors use symmetrical pairs of p and n-type metal oxide semiconductor transistors to execute logic functions for the security system or camera. Progressive image scanning technology is used extensively in CMOS security cameras. It enables the camera to provide a wide range of advantages to users.
Progressive Scan is also called a slow scan. It is a sequential scanning technology associated with the image sensor to display, transmit, and store moving images. Traditionally, most video signal formats used the interlace scanning method. It is used in standard-definition TVs, CRT-based computer monitors, and analog CCTV cameras. It was introduced to overcome the limitations of bandwidth in analog broadcasting structures.
Interlace scanning works by scanning half an image in a frame quickly enough to go unnoticed by the human eye. However, as it displays half frame in one scan, it suffers from blurring and tearing and results in low image quality compared to progressive scanning. A progressive scan works differently. It displays all the image lines in full on a frame and doesn’t separate them into halves.
The main advantage of this type of scanning comes in the form of clarity of the picture, particularly when it is about capturing a moving object. A progressive scan CMOS reduces the effects of blurring and tearing found in traditional interlace technology as used in analog CCTV cameras. That makes CMOS image sensors ideal for cameras used in security applications.
When you pause your security system’s recordings, the images of moving objects appear much clearer when a progressive scan CMOS is used. Moreover, it delivers a much better result when scaling to higher resolutions as compared to interlaced video.
Security cameras can be either CCD (charged-coupled device) or CMOS that we have discussed above. But which of the two image sensor types is better for CCTV? Let us try to understand the differences and find out which one outperforms the other.
CMOS CCTV Pros and Cons
CMOS CCTV cameras mainly use progressive scan technology to deliver a plethora of benefits in terms of performance and quality.
• Great color
• High resolution
• Lower power consumption
• Fast frame rate
• Moderate sensitivity
• High noise
CCD CCTV Pros and Cons
CCD cameras contain p-doped metal-oxide-semiconductor capacitors to represent pixels. Cameras with these image sensors have an excellent WDR (wide dynamic range), so they perform better in low-light conditions. CCD cameras are less likely to be affected by vibration problems as compared to CMOS CCTV.
CMOS cameras use a rolling shutter that exposes them from top to bottom. On the other hand, CCD security cameras use a global shutter that exposes the entire sensor simultaneously. These cameras are thus less vulnerable to vibration.
• High sensitivity
• High performance in low light conditions
• Low noise
• Good WDR
• High definition
• Less susceptibility to vibration
• Slow frame rate
• High power consumption
People have a lot of questions about CCD and CMOS image sensors for CCTV cameras. Let us discuss some important things you need to know about these image sensors to decide which is better.
Power Consumption and Frame Rate
When it comes to frame rate for a CCTV, the CMOS image sensor is definitely the winner. That is because CMOS can convert the photoelectric signal into a digital signal directly. The frame rate and processing speed are fast as compared to CCD sensors. For CCD, analog to digital conversion often takes place outside the sensors. It thus takes longer to generate videos and images.
CMOS CCTV image sensors can easily integrate different types of applications on a versatile chip. These sensors on the security cameras also need lower bandwidth. On the other hand, CCD CCTV image sensors need interior circuits and external components to perform amplification and conversion to a digital signal. That is why this type of camera encounters problems like overheating.
Overall, CCTV cameras with CMOS image sensors provide a higher frame rate with lower power consumption than CCD CCTV image sensors. CMOS cameras are therefore most cost-effective and affordable than CCD security cameras.
CCD sensor cameras are generally known to offer a higher resolution of images and videos. But the technological development has enabled CMOS CCTV cameras to provide an image quality at par with CCD image sensors when used in surveillance systems. For example, CCTV cameras with CMOS image sensors can deliver clearer pictures when equipped with an optical zoom feature.
Low-Light Sensitivity and Noise
When CCD image sensors are used in surveillance systems, they move charged cells across the chip and are less vulnerable to distortion. That means this type of camera has a higher sensitivity to light and generates much less noise than CMOS CCTV. Quantum Efficiency is a measure of how efficiently the camera sensor converts photons to a digital signal. Higher this measure, the more sensitive the image sensor is.
CCD cameras were known to provide better performance in low-light or night conditions. Today, CMOS CCTV cameras are capable enough to outperform CCD in terms of sensitivity. That is why it is difficult to say which of the two performs better in low-light conditions.
As you can see from the above comparison, both CMOS and CCD image sensors CCTV cameras have their advantages and limitations. There is no definite answer to which of the two is better. The answer comes down to your application with the security system. Here are some useful tips you can consider:
– Choose security cameras with CCD image sensors when you aim to monitor locations in dark or low-light environments.
– For covert environments, CMOS CCTV cameras are the right choice. This type of image sensor makes the cameras’ compact in size as their dimension is small.
– CMOS CCTV cameras are ideal when your internet connection is not so good. Cameras with CMOS image sensors offer a faster frame rate that doesn’t take up much bandwidth. That means you don’t suffer from a lot of internet loss.
The size of the image sensor is an essential consideration for CCTV camera performance. An image sensor is generally the eye of a security camera. It captures the light hitting the lens of the camera and converts it into an electronic signal. That is how the CCTV camera enables you to view the image or video when you access it.
You might have checked the specification of your CCTV camera to find something like 1/3″ 4 MP CMOS. This type of description is for the measure of the camera’s image sensor format. This specification is about the shape and size of the image sensor that decides the angle of viewing for the security camera.
Sensor size is often described in inches as an optical format. There are three common CCTV camera image sensor formats available in the market – 1/3, ½, and 2/3. A 2/3-inch image sensor can target long-range in low-light conditions. A ½-inch security camera image sensor is the perfect format for security cameras as the sensitivity is quite acceptable.
A 1/3-inch CMOS image sensor offers a good low light performance, highly desirable in CCTV cameras. It also delivers a high frame rate that adds to the image’s quality when used with progressive scan CMOS.
A DVR device is a great way to improve your security at home, business, or commercial settings. Most of us find the installation and setup of these devices complicated and daunting.
This guide discusses how you can set up the DVRDyDNS in easy steps without any professional assistance. We also talk about the free DDNS and camera apps for DVR.
To get started with a DVRDyDNS setup, the first step is to choose a monitor upon which you want to display your video. If your recorder has an HDMI, you can find a monitor that supports this option. If the monitor you want to use doesn’t support HDMI, it should either use a VGA cable or a BNC connection.
Once you power on the device, you can see the screen where you can find the main menu to log in. Look for the ‘Display’ option from the Settings, and you can adjust the parameters to your liking. You should find the Resolution Key and fine-tune it to suit the capability of your monitor. Click on the Save button to save your changes.
Another vital setting is Date and Time. Make sure you adjust these before proceeding to other parameters. Access the main menu on the screen and go to ‘Settings’ to find the time and date option. Choose the date and time, and set them correctly, save the changes, and exit.
To avoid any confusion with multiple channels, you should prioritize naming the channels to have precise responses to events. Go to the main screen and right-click to access the ‘Main Menu’. You can find the ‘Display’ option under Settings. Select your camera name, change it with a custom name and save the changes.
With a recorder, you can always follow a feed live. However, you can record into a hard drive with storage space as well. Configuration of record function is necessary to get the best quality of surveillance videos. Right-clicking on the screen gives you access to the main menu from where you can log in and go to Settings.
Look for the ENCODE icon in the settings window and enter the encoded page. It would be best to apply new settings for the resolution of recording for camera channels. You will find an arrow near the ‘Channel’ that you can click and set to ‘ALL’ with the drop-down menu. Set the recommended D1 resolution for recording, and you can see that the frame rate changes automatically.
Next, you should aim to get the highest quality video with low compression. To change the bitrate, locate the ‘Bit Rate’ option and select ‘1024’ from the drop-down menu. Save the changes by clicking on the ‘Save’ button at the bottom of the screen to see the changes taking effect.
Most users prefer to use third-party apps and software to remotely watch the video feed from their security cameras on their desktops and mobile devices. Here are some of the best DDNS camera apps that work with DVR security systems.
This free video surveillance app is available for Android and iOS devices and supports a large number of camera brands and models. It not only allows viewing video but supports tilt, pan zoom, and preset call. It even supports audio for some cameras. It can transform any device into a network video recorder to record the cameras with playback, search, and export functionality.
ICamViewer is another free app that supports iOS and Android devices and supports a limited number of camera manufacturers. The app can work with a maximum of 16 sets of security cameras or DVRs for local or remote video viewing. It allows taking snapshots and sharing via social media, recording, and multiple stream viewing.
This is another user-friendly app that supports NVRs and IP security cameras. It features a simple, intuitive interface that gives users easy access to functions like viewing live videos and playing recordings. M-Sight Pro supports multiple video compression standards.
Here is how you can set up your DDNS camera viewer for your DVR or surveillance system.
To set up your DVR for internet viewing, you require a monitor and a DVR and a router, internet connection, and network cables. Make sure your router is set correctly, and that internet is available on your devices. Also, make sure you have access to the admin page of your router. Connect the router and DVR using the network cables.
From the DVR main menu, go to Settings>Network and locate the DHCP box. When you check this box, the fields for Subnet Mask, IP address, and Gateway disappear. Click to save the changes and exit. When you go to the Network window, you will find the fields filled. Copy the IP address from its field and keep it for later.
Paste the copied IP address into your browser’s search box and install any add-ons you are asked to do. You will see a login window where you can enter the details. Go to the Main Menu > Advanced > Account to edit DVR permissions and other settings.
A proper configuration is critical to be able to monitor the DVR from another location. IP address won’t just work here. You need the WAN IP address that you can receive from your service provider.
With port forwarding, your router can be accessed from a network outside the LAN so that you can monitor the DVR remotely. To do this, access the port forwarding section on the router and forward ports to the local IP of your DVR. Then, check that the ports are accessible.
There are several options for free DDNS to help you access the devices from anywhere on the internet using a domain name. Here are some of the most popular services.
A highly recommended free DDNS service provider for DVR is an excellent choice for standalone recorders and is easy to use. You can register with the service in a few simple steps and start using your IP address to access the computer remotely.
This is another powerful DDNS service for DVR, which provides up to seven free subdomains. You can select from a large number of sub-domains and hostnames to get remote access to your camera.
This provider offers full DNS hosting for free for your domains. You can even use their free DNS service with listed domains if you don’t have your own domain. Once you register with the service, you get two free sub-domains that allow you to create a hostname that points to a static or dynamic IP address.
A leading dynamic DNS provider, Dyn, is the most famous DDNS service provider of all time. Since 2012, it has stopped registrations for free service and has discontinued the free service after 2014. DynDNS is the most popular dynamic DNS service as it is embedded by default in router firmware, and it is often the only option that comes embedded.
A very old, trustworthy, free DDNS provider, AFRAID.org has been offering free dynamic DNS for about two decades now. The website still welcomes free DDNS registration. It offers free DNS, DDNS, static DNS services, and supports free domain and subdomain hosting, URL redirection, and other services. It allows unlimited domains per year and five free shared hostnames.
A dynamic DNS for CCTV is a free service that allows accessing the security camera remotely over the internet using a dynamic IP address. Such a dynamic feature of security cameras makes them prone to attackers and hackers. To get started with DDNS for CCTV, you can register for a domain name from DNS servers. There are many free service providers available, one of which is NO-IP.
To register with NO-IP.com, you can go to Create Account> Free DNS > Register from the service interface. Once you have filled in the required details like username, email, hostname, and others, you can activate your account and log in. Next, you can choose any of the free domains and save information.
Once you have registered, there are a few ways you can access the system remotely. You can configure the devices and start using your tablet, desktop, and smartphone to access other viewers’ feeds.
We hope this guide to the DVRDyDNS setup helps you configure the system quickly to start viewing your security camera system remotely. You can follow this procedure for DDNS configuration on your DVR recorders to stay on top of your surveillance system from multiple devices regardless of your location.
Amcrest is one of the most popular names for home and business security solutions. It offers a variety of security and surveillance equipment with advanced features at budget-friendly prices. The brand has also introduced a wide range of security cameras with LED lights, infrared, night vision, and other desirable features.
Amcrest cameras are generally suitable for those who are comfortable with DIY setups and don’t prefer professional assistance. Setting up these cameras is easy if you are familiar with the equipment and can follow the user manual. In this guide, we see how you can set up your Amcrest camera in easy steps. This guide aims to take the headache out of your camera setup procedure while giving you some useful information about Amcrest camera troubleshooting.
Amcrest offers a wide range of home security cameras with different features and functionality, and the setup process can vary between models. While the WiFi camera is quite simple to install and setup, others can be a little complicated and may require some effort. How you set up your camera also depends on how you use it – wireless or wired. You might want local as well as remote access. Other considerations include how you record and store the footage.
The first way to set up the Amcrest camera is to use apps designed to access and manage the equipment. To do this, you can get Amcrest View Lite or View Pro available for free from the company. These apps can be used on your tablet or smartphone. These apps facilitate quick setup procedure to get direct live access to your camera, no matter where you are at any given time. You can start controlling all the essential features, including Two-way radio, Recording, Snapshots, Pan/Tilt/Zoom, and others.
You can start by downloading the Amcrest View Lite app from your Google play store or iOS app store. First, connect the camera to a power source using the included adapter. In just a few minutes, you see the rear unit displaying a green LED light, which means it is ready to use. Next, you can connect your device to the home’s WiFi. Now you can follow some simple steps to start controlling your camera from your smartphone or tablet.
– Open the app on your device
– Click on the icon for Menu on the left corner
– Choose the ‘Device Manager’ option
– The next screen should show you a ‘+’ sign, which takes you to the ‘Add Device’ option
– Select ‘WiFi Configuration’
– Give a desired name to the camera connection
– Select the ‘QR code’ option and scan the QR code found on your camera
– Clicking on the Next button prompts to enter your WiFi password
– It takes some time before your camera connects to the network
– Once connected, click on the ‘Start Live Preview’ option to see the Live Preview screen
Your camera is now connected to the wireless network, and you can find all the required icons at the bottom of your tablet or smartphone screen.
Amcrest cameras can be set up to stream the video on the computer. This type of connection can be either wired or wireless. To use it over a wireless network, you should first set up the smartphone using the instructions given above. A wired connection is more stable and consistent than wireless, particularly when the WiFi network has an inconsistent signal. Moreover, you get an added benefit of the bigger screen when connecting the camera to notebooks and desktops. Once set up for desktop, you can access all the camera features through a web browser.
Setting up the Amcrest camera for desktop is pretty straightforward. Here are the steps you can follow.
– Connect the camera to the power supply using the included adapter
– Next, connect it to a router with the help of the Ethernet cable
– Insert the disk into the drive and wait for the IP configuration software to install
– When installed, open the software and click the ‘Refresh’ button
– Use the ‘Browser’ button to open its interface in your web browser
– Log in to the camera using the default username and password
If you log into the Amcrest security camera for the first time, you are asked to change your password. You can choose a new, secure password for future logins.
Connecting your Amcrest camera to your WiFi connection is simple. You can easily accomplish it with the help of Amcrest setup apps available for your smartphone and tablet. Once it is on the internet, you can also set up the camera for use with P2P, which allows pairing it to multiple devices simultaneously. Here are the steps you can follow to set up your Amcrest WiFi camera for P2P.
– Connect the camera to the power supply using the adapter included
– Ensure a wired or wireless connection to the internet
– Open the Amcrest app from your smartphone or tablet
– Click on the ‘Device Manager’ option from the menu icon on the top left
– Select ‘P2P’ by clicking on the ‘+’ icon in the Device Manager
– Next, you can name your camera to your liking
– Scan the QR code available on the camera in the ‘QR code’ field
– Once you scan the code, you get the login screen where you can change your username and password
– Clicking on the ‘Next’ button connects the device to your camera
– You can use the ‘Start Live Preview’ option to start using the camera with your devices
This way, you can connect the Amcrest camera to your devices and start viewing it from any phone or tablet.
Failure to connect to WiFi is a common problem reported by security camera users. At times, you can see the camera dropping the connection to the network or showing a connection error. Your camera can fail to connect to the WiFi or unable to find WiFi. There are many reasons this problem occurs, and it can be resolved easily through some quick fixes.
One of the biggest reasons you encounter a problem with a security camera is the power issue. When you find a WiFi connectivity error, you should first check that the wireless camera’s power supply is suitably available. Ensure that the camera is connected to the power supply with the adapter.
If your camera experiences a problem connecting to the WiFi, you can open the app on your device to make sure you have configured the connection to the network.
Often, your camera fails to connect to the WiFi network because the password is not correct. Check the username and password details in the app configuration and make sure the password you have entered to log in to the camera is accurate.
Your camera can find it difficult to connect to the WiFi if the signal is not stable. Your camera may be too far from the router. Check this distance and make sure you see a proper signal in the settings from the app. Bringing the camera closer to the router can resolve this issue.
Your Amcrest camera comes with a built-in microphone that stays activated by default. However, at times, you encounter a problem, and the microphone doesn’t work correctly. That is one of the most common issues users face. The first thing you should do to troubleshoot this problem is to check that you have the latest version of the software you are using to access the camera.
If your Amcrest microphone doesn’t work even after updating the software, you can use the following steps.
– On your Windows PC, open the ‘Device Manager’ from the Computer Management menu. Check the Audio inputs/outputs drop-down menu to make sure you can see the Microphone driver.
– Next, go to the software you are using and tap the Settings menu to make sure it registers the microphone.
– For Windows 10, you can access the Privacy Settings to enable the option ‘Allow desktop apps to access your camera.’ You can find similar microphone settings where you can verify that the microphone is not set to mute for the software. Also, make sure the security software is not blocked using an external device. You should also check for the microphone’s input level to verify that it is set to max.
If these steps don’t work, you can locate the camera on your computer and uninstall it. Then, connect it again and restart. The camera automatically installs on the system with new drivers. Once this is done, go to the software to check if the microphone works.
Many of us find it difficult to set up the Amcrest WiFi camera. However, with the right information and patience, it is pretty straightforward. We hope this guide helps you setup your Amcrest camera quickly. With this setup guide and troubleshooting tips, you should find it easy to use your Amcrest security camera to its best without any problem.