Differences H.265 and H.264

Differences between H.265 and H.264

A codec is an encoder and a decoder. An encoder compresses audio or video so it takes up less disk space. A decoder extracts audio or video information from the compressed file. Video and audio compression is a complex technical process, but the basic aim of a codec is quite straightforward:

(a) Reduce the size of the compressed media file as much as possible, but...(b) Keep the quality of the decoded audio and video as good as possible.

What is H.264?
H264 (aka MPEG-4 AVC) is currently a mainstream video compression format. It is widely used in Blu-ray discs, internet sources like videos in YouTube and iTunes Store, web software, and also HDTV broadcasts over terrestrial, cable and satellite.

What is H.265?

H.265 (also known as HEVC, short for High Efficiency Video Coding, developed by the Joint Collaborative Team on Video Coding (JCT-VC)) is a video compression standard whose predecessor is H.264/MPEG-4 AVC. H.265 HEVC ensures to deliver video quality identical to H.264 AVC at only half the bit rate, including better compression, delicate image and bandwidth saving. It Support up to 8K, Support up to 300 fps. It is likely to implement Ultra HD, 2K, 4K for Broadcast and Online (OTT).

H.265 vs H.264: Differences between H.265 and H.264

In general, H.265 has several big advantages over H.264, including better compression, delicate image and bandwidth saving. For more detailed differences, please read H.265 vs H.264 comparison table.

4 pcs 2MP IP cameras for 1 month, stream: 4096Kbps. 
H.264 IP camera need 42G×4×30=5T=1×3T+1×2T, so need 1 pc 3T and 1pc 2T HDD. 
H.265 IP camera need 21G×4×30=2.5T, so need 1 pc 3T HDD only, save at least 1 pc 2T HDD cost. 

Simple Ways to Clean your Camera Lens

Three Simple Ways to Clean your Camera Lens

Dust, rain, and bugs can have a great impact on the quality of your camera’s picture, but with the following easy tips, you can keep the image quality looking great throughout the life of your security camera.

1. Distilled Water – Put some distilled water into a squeeze bottle with small tip. You’ll want to gently apply some water droplets, and then blot gently with lens tissue or another clean, lint-free, scratch-free material.

2. Baby Shampoo – A mild surfactant like Johnson’s baby shampoo (diluted with water) lightly applied to the glass and blotted dry is a great way to remove dust, spider webs, and oil compounds from areas that create steam from oil based foods.

3. Hot Air – By using a hair dryer to a dry lens you are heating up the glass to a point where the molecules are now looser and easier to remove.  The reason why waxing a car is such a chore is the effort needed to create heat by rubbing the surface to warm up the compounds so they can be removed.  A simple hair dryer to a lint free cloth can do the trick for minor cleaning needs.

Principles of Surveillance System Installation

8 principles surveillance system installation

Safety awareness increases, Video surveillance systems into our lives. Video surveillance program are also more and more, So the first thing to consider installing surveillance systems of the following 8 major principles:

1.Real-time monitoring system

Real-time monitoring is very important, and it’s necessary for the Monitoring System.

2.Security

Security and confidentiality measures to prevent the illegal invasion and illegal operation system.

3.Scalability

Monitoring system equipment used modular structure, The system can be extended no need to change the structure of the network and hardware and software.

4.Openness

The system provides software, hardware , communications, networking , operating systems and database management systems and other aspects of the interface and tools that meet international standards , so that the system has good flexibility , compatibility , scalability and portability.The entire network is an open system that is compatible with a number of monitor manufacturers of products, and to support the secondary development.

5.Normative

Equipment and technology used in line with internationally accepted standards.

6.flexibility

System features full use of existing video surveillance subsystem networks. Monitoring can be used in different business, it is full-featured and easy to configure.

7.Advancement

Monitoring systems will become an advanced , future-proof , high reliability, confidentiality, easy network expansion , strong connection data processing capabilities, the system is running manipulate simple security system .

8.Applicability

Video surveillance systems have to complete the project in the required functional capacity and standards. Comply with the requirements of norms of domestic and foreign, and the advantages include ease of operation, Low- cost and high-performance.

HD-TVI, HD-CVI, HD-SDI, HD-AHD, Analog & IP Camera

HD-TVI, HD-CVI, HD-SDI, AHD, Analog & IP Camera

Even we enter into digital era, analog surveillance technology doesn't stop its innovation. Besides the HD-SDI and HD-CVI (in house technology of Dahua), today the Hikvision and other camera manufacturers announce HD-TVI cameras release.  HD-TVI means High Definition Transport Video Interface,  HD-TVI is based on traditional coaxial cable for video and data transmission, it supports not only 720P/1080P video signal, but also including audio, data signal over long distance up to 500 meters.

At present, there are approximate 100 million coaxial cables are deployed for analog camera connection. In the next 3-5 years, they will be replaced with high definition camera. However, some users start to worry they have to rewire, re-install or add new network devices for upgrading. This group of users prefer the economical and easy solution to upgrade existing system to HD, rather than adopting the IP camera. In this context, the HD-SDI and HD-TVI technologies were born.

HD-TVI advantages

500 meters long range video transmission:-

As we know, HD-SDI and conventional analog solutions only has limited 100 meters video transmission. Additionally, the cost of HD-SDI equipment is more expensive. The HDTVI technology (HikVision) offers long range distance video transmission at 1080P/720P through coaxial cable.  The cost of HD-TVI products is very affordable, permit users upgrade the system with minimum investment. This makes HDTVI become a perfect solution to fit all analog surveillance applications. Furthermore, the new HDTVI technology support UTC function which can allow user to remotely control the OSD menu and PTZ control via coaxial cable. This means user can quickly install and adjust the camera without accessing the camera itself.

HDTVI Camera with CS 4mm lens

Analog high definition resolution at 720P/1080P:-

Similar to HD-CVI (in house technology from Dahua) and HD-SDI, the new HDTVI cameras can deliver real time 720P/1080P HD resolution video without video latency. The HDTVI DVRs support full time 720P/180P video recording and playback. Through using HDTVI compatible cameras and DVRs, user can setup a complete new HD analog surveillance system or easily upgrade the existing conventional analog system to HD surveillance system.

HDTVI Camera with CS 12mm lens,

Broad manufacturers to offer great compatibility:-

HDTVI equipment is HDTVI open standard, which guarantees trouble-free connection to other HDTVI-compliant cameras and DVRs. By the way, the new designed HDTVI DVR also can support traditional standard video camera for offering great flexibility.  All HDTVI HD cameras can access third party DVRs equipped with HDTVI technology from other manufacturers. The main HDTVI members including TVT, Hikvision, Hisharp, Unifore, LSVT...etc.

HD-TVI vs Analog

In summary, the advantage of HD-TVI compared with Analogue is:

1.       HD resolution on 720P/1080P at 25/30fps

2.       Long distance transmission for HD video

3.       No video quality loss and delay for transmission

HD-TVI vs HD-CVI 

Obviously, HD-TVI and HD-CVI have very similar features, both of them can provide analog high definition solutions. HD-TVI derives from American based company that does not supply to only one manufacturer. Therefore we are expecting many analog camera manufacturers will release wide range of HD-TVI based cameras to market. Therefore, HD-TVI is more likely to become an industry standard, not a proprietary technology/solution.

HD-SDI vs HD-CVI 

HD-TVI vs HD-SDI 

In conclusion, compared with HD-SDI, new HD solution with advantages of:

1.       Longer video transmission distance up to 1000ft (300m) over regular coaxial cable

2.       700ft (200m) distance for video transmission over UTP (Cat5, twisted cable)

3.       More cheaper price for analog HD system

4.       Support twisted cable installation

HD-TVI vs IP Camera

Hence, compared with IPC, the advantages of HD-TVI are

1.       No network bandwidth requirement/influence

2.       No network configuration, as easy as analog system

3.       No video quality loss and compression

4.       No video latency issue, real time live-view

5.       Long video transmission distance

6.       More affordable price for camera and video storage devices

AHD advantages

A new kind of camera: AHD Camera (Analog high definition)/HD-AHD is developing so soon in the market now.
The price is similar as Analog camera and the image effect is similar as digital camera!

The Advantages of AHD Camera:
1) AHD Camera can link with general DVR and the resolution is looks like 1000tvl analog cameras.
2) AHD Camera can link with AHD DVR, and the resolution is Megapixel High Definition ( Now have 1MP, 1.3MP already).
3) Transmit by Coaxial cable-500m!!
4) The price is similar as Analog system no matter considering DVR or camera.

HD-CVI cameras vs HD-AHD cameras

1.       1.0 megapixel AHD camera adopts OV9712 + NVP2431H solution (CMOS Chip: OV9712 & DSP Chips : Nextchip NVP2431H), while HD-CVI camera adopts the PO3100K + DH9801 solution. In addition to the difference of solution, the price vary greatly, OV9712 + NVP2431 of AHD camera module only costs US$7.5, and PO3100K + DH9801 camera module costs approximate US$11.

2.       AHD camera can connect to CRT display directly, the image can display properly. HD-CVI camera connects to traditional CRT, it doesn't show images. For video live view/recording/playback, HD-CVI cameras need to work with HD-CVI DVR. It seems, the HD-AHD cameras support 960H output mode, which is very convenient for test and installation. Since the AHD cameras can be backward compatible with all traditional analog equipment. Compared with HD-CVI, it has advantages of great compatibility.

3.       Competiable with normal D1 / 960H, and analog peripherals (including distributors, matrix, etc.). Switch AHD, IP and Anolog video signal from AHD DVR in no time.

4.       Strong anti-interference capability & solid interface protection that can avoid space high frequency electromagnetic radiation to ensure a constant signal transmission of high definition video display without problems as frame drop and lock loss occurred.

Visit: HD-SDI High Definition CCTV vs Traditional CCTV Cameras

Choosing Video Surveillance for SMB Owner

5 Top Points for Choosing Video Surveillance for SMB Owner

Video surveillance innovations have changed the landscape for users in the SMB (Small, Medium-sized Businesses) market in India. Improved security, reduced liability and peace of mind, along with useable video for real-time monitoring, Mobile Surveillance and forensic investigations, are some of the benefits now available to the SMB.

Following are top 5 points every SMB owner should be aware of when upgrading or implementing new video surveillance systems / CCTV surveillance systems.

Quality – One key to a successful system is the quality of the image. New high definition (HD/AHD) and megapixel IP cameras capture images in great detail, enabling the SMB owner to more effectively protect people and assets. Improvements in camera technology such as wide dynamic range (WDR), digital signal processing (DSP), and increased signal to noise ratios have helped create cleaner images with stable operation, allowing their use over a wide range of environmental conditions. State of the art technology enables low-light operation, outstanding 30 FPS quality and high standards with minimal maintenance.

Wide Selection / Functionality – CCTV cameras come in all shapes and sizes, in all price ranges with a multitude of features. It’s important that you know what you want to accomplish with the camera and not be influenced by bells and whistles. Cameras are available for indoor and outdoor applications, in dome or box configurations, and with or without audio capability. Network cameras can be accessed remotely, moved anywhere on an IP network and conveniently powered via Power over Ethernet (PoE). Digital technology has also enhanced the feature set of cameras with new and exciting capabilities. Advanced features include motion detection that can analyze video and respond automatically with actions such as tripping an alarm or initiating recording, freeing personnel from the need for constant monitoring. Image processing digitally removes ambient fog, haze or smoke to create the clearest picture. Other features include on-board recording to SD card, network failure detection, privacy mask and a variety of built-in video analytics features including active tampering detection and audio detect.

System Integration – One of the most compelling reasons for SMBs to consider new video surveillance technologies is the improved system integration capability. Open architecture and industry standards such as ONVIF, PSIA and H.264 have helped eliminate challenges once faced in designing a system. Now, best of breed designs can be put together to minimize financial impact while meeting security requirements with best available technology. Hybrid solutions further help preserve investments in infrastructure by deferring or eliminating the need to rip and replace systems that are still useful and functional. Additionally, the growing availability of integrated solutions like recorders with built-in software control and management capabilities enables the implementation of high performance, multi-camera HD systems with exceptional functionality, cost-efficiency and scalability.

Multi-Purpose Uses– New systems can offer the SMB options beyond video surveillance for improving business operations. For instance, video can be used to monitor daily operations and employee productivity. Not only can weaknesses or non-conformance issues be identified but the video system can be used to instruct the proper procedures. In retail environments, cameras can be integrated with point of sale (POS) systems to help with loss prevention. Video images can also be used to review consumer traffic patterns to assist the SMB owner in realizing optimum store layouts. The quality and reliability of the system makes the possibilities endless.

Technology Partners– SMBs may not have the staff or specific expertise and experience necessary to determine the kinds of products that will solve their particular issues, or to evaluate those products in order to choose the right one for the organization. By partnering with a trusted integrator who has knowledge and understanding of the systems, the SMB owner can better protect the value of the investment and help to ensure on-going satisfaction with the system.

The video surveillance playbook for SMBs has changed by becoming both more complex and more compelling. Taking the time to research and understand will help to make the decision process easier.