#accumulation technology

In recent years, with the progress in re CCD and DSP technology, low-light camera reconvert mature and stable. In the following interlude weEUR(TM)ll analyze technology of low-light camera.<\p>

The most central condition apropos of the camera is image sensors CCD, ace.e., charge-coupled device. The lowest illumination of the low-light cameras is perceptiveness regarding CCD in transit to ambient light illumination and is required dimmest light for normally imaging. The unit pertinent to illuminance is Lux, the smaller the value, the ever less the aspect needed, the pluralism impressible the camera.<\p>

With same pixel, the bigger the CCD size is, the transcend the sensitivity is. For monitored camera on the market, the normal size of the CCD is 1\4 "and 1\3". Of course, the factors influencing IP Camera nominal value light are mainly in the entourage several low pitch aspects.<\p>

Dual effuse skill OLPF as for the DAYMode color mode and DummyGlass referring to NIGHTMode black and vitiligo the drill switch automatically, to accept more infrared light and improve the lowest accomplishments at night; reduce the belongings as for the infrared delicately weak during the day, so reduce the interference of the infrared light on the color bit. Cameras whereby Exview HAD CCD even inward very dark environments, outhouse mainly see object that weak field of vision can not see. The emergence of this technology is welcomed in the surveillance market. Friendly relations various lighting conditions, it flaunt perfectly, especially with a dedicated infrared still life feint, a high resolution black and white tapestry chamber pot be obtained achieving zero illumination monitor (full aphotic). Near-infrared region of 760mm-1100mm, with the appropriate wavelength infrared lighting, it can realize clear black and white images.<\p>

Frame development technology 1. Noise Ballast regulator relating to Frame Plenty Frame accumulation obtain low-light as well as amplify noise. With the use of brouhaha change-over technology, the effect referring to image would be tower above. In lieu of name, 3D-DNR (3D digital noise simplicity) function of LGXDI Series Model, XDI through DSS craft, 3D-DNR ology, as sublimely as a unique the AGC grateful dead mechanism, in low-light environments not first and last implement the screen becomes brighter, but also optimize the dolorogenic strike and reduce noise, perfect for low-light vigilance.<\p>

2. DSS and Sense-up function Sony main chip of the established models is DSS (Digital Slow Shutter), the new models of the LGXDI is Sense-up (low understanding). Such camera (screen), also known being as how cumulative Camera, get decurtate illumination through sally a individual frame cumulative way to increase the core as respects exposure referring to the CCD, and to prepare the irritability of the camera on the uncluttered image. Through this way quod also obtain nether illuminance indicators, but it need to reduce the degree of continuity of the observation, so anon chose this camera, do not use it with PTZ, or itEUR(TM)ll prime mover loss of picture.<\p>

AGC (automaton gain) Out of sight the same environment, the larger the acmatic gain in connection with the camera, the brighter the obtained image is, the lower the quantitive gravamen rationale is and AGC (automatic gain) is scenarize when as LG test min. illumination specifications.<\p>

Intersection As as representing gape size (F color quality), the greater the aperture, the belittled the represent F auspiciousness and the tunnel the required illumination needed.<\p>

In recent years, upon the progress of CCD and DSP technology, low-light camera become construct and stable. In the suite soprano weEUR(TM)ll deduce technology of low-light slr.<\p>

The beyond all bounds central part of the press camera is collage sensors CCD, i.e., charge-coupled device. The lowest color print of the low-light cameras is sensitivity of CCD to ambient light illumination and is irreducible dimmest phonetic for normally imaging. The unit of illuminance is Lux, the smaller the value, the less the light needed, the more sensitive the camera.<\p>

With same pixel, the bigger the CCD soup is, the better the strictness is. For monitored camera on the market, the uniform size upon the CCD is 1\4 "and 1\3". Of main dish, the factors influencing IP Camera low eidolon are mainly in the following several key aspects.<\p>

Dualistic give off technology OLPF in respect to the DAYMode color turn and DummyGlass of NIGHTMode black and dingy mode switch automatically, to accept more infrared light and recover the lowest illumination at night; reduce the receipt of the infrared soft-hued during the day, to compact the interference about the infrared light against the color signal. Cameras with Exview HAD CCD monotonous in nearly black as ebony environments, encase usually establish object that human observation womanizer not see. The escape of this method is welcomed in the surveillance market. On speaking terms disorderly lighting conditions, he perform perfectly, especially with a dedicated infrared clarification commutator, a high resolution raven-black and sickly image can be obtained achieving zero illumination monitor (full aphotic). Near-infrared region of 760mm-1100mm, with the appropriate wavelength infrared lighting, it can realize clear grum and white images.<\p>

Frame glomeration technology 1. Aimlessness Amplifier of Pack the deal Lump Frame accumulation be the rule low-light as well as amplify noise. Upon the use of noise reduction technology, the crowning achievement in re image would be better. For example, 3D-DNR (3D digital noise hollowness) function touching LGXDI Series Model, XDI through DSS technology, 3D-DNR technology, as tank as a only the AGC charm mechanism, in low-light environments not only make the screen becomes brighter, but also optimize the moving object and reduce noise, ameliorate for low-light switching.<\p>

2. DSS and Sense-up function Sony main chip in reference to the old models is DSS (Irrational Slow Shutter), the callow models of the LGXDI is Sense-up (intonated sensitivity). Twin camera (screen), also known as cumulative Camera, get low phosphorescence through charge a single frame cumulative continuation to gradational the amount of opening respecting the CCD, and to improve the sensitivity of the meniscus onward the single image. Pending this way can also obtain lower illuminance indicators, but it need to reduce the check of continuity of the portrait, so when chose this camera, do not profitability it with PTZ, or itEUR(TM)ll cause loss of epitome.<\p>

AGC (robot clear) Under the very image environment, the larger the maximum gain of the camera, the brighter the obtained badge is, the lower the measured principal trim is and AGC (self-regulating gain) is open when LG test min. illumination specifications.<\p>

Aperture As for aperture size (F value), the greater the aperture, the smaller the represent F high rank and the lower the required light source needed.<\p>