960H security cameras means the security camera can deliver analogue high resolution images at 700 tv lines or 960x480 for NTSC, 960x582 for PAL tv system. As one of leader in developing and manufacturing CCD image sensors and DSP, Sony lunched a new series "Effio" DSP for security market since 2009. As result of inexpensive price, now 960H camera replace other analogue cameras as the main trend in security market.
Merely check the product’s promotion information from manufacturer, you will not know the gap between ideal and reality. Especially for those parameters are hard to verify, consumers were mostly only been fooled. 960H surveillance systems appear in market for a long time, few people know the difference between this new technology and traditional surveillance system. We herein write this article to test the 960H camera and verify whether the 960H system can increased 30% resolution than D1 or not.
Video security system becomes so cheap nowadays. Currently, we have many HD solutions to allow user setup a complete HD video surveillance system. The latest solutions including 960H, AHD, HDCVI, HDTVI, as well as HDSDI.
960H is released and promoted by Sony, who is the leader in past traditional video surveillance technology. These cameras are based on Sony 960H image sensor and Effio DSP can deliver maximum over 700 tv lines resolution. Some camera manufacturers put the 800 tv lines on camera's tag & its specification.
QCIF, CIF, 4CIF, HD1, D1, 960H are resolution formats to describe the video resolution (We can simply understand its size or dimension of video). All these formats evolved from CIF as its base.
CIF: Common Intermediate Format, it's one of common and widely used video transmission format in video conference, CIF's resolution is 352x288, the frame per second can reach 30fps, and compliant with ITU H.261 video conference protocol. Reference: Common Intermediate Format (Wikipedia)
Generally, the resolution of camera depends on three factors; CCD image sensor, DSP chipset, and Lens, With above good quality hardware, the camera can output true 960H resolution images.
Firstly it’s CCD image sensor, to describer the resolution of CCD image sensor is its horizontal resolution, Currently analogue high definition camera are adopting Sony Ex-view HAD CCD, the horizontal resolution can reach up to 960H, compared to 760H, 960H increase 30% of pixels, also low illumination performance improve one times. On the aspect of image, the horizontal resolution pixels increase from 440,000 pixel to 570,000 pixel, increased lots of detail of images, and more clear on images, few noise under low illumination.
When you are searching for standalone digital video recorder, you will see QCIF, CIF, D1, 960H parameters in every standalone DVR technical information table. CIF, D1, 960H are the recording and playback resolution for security DVR. These parameters are very important factors determined your video recording surveillance performance and resolution.