For video surveillance of indoor corridors, strong light sources can result in image blurring. Huawei uses point-source exposure to suppress large halo and image blur caused by direct highlight radiation. It also compensates for the area near the strong light spots to obtain clearer images.
Huawei uses 3-frame exposure technologies that capture images in different regions and exposure times and combines three images into one image for output. These technologies are especially beneficial in harsh environments where intense contrasts are an issue. It enables the capture and display of both bright and dark areas, in a way that bright areas are not saturated, and details are clear and visible in dark areas.
Several technological developments have been made in H.265 to improve the relationship between stream, coding quality, delay, and algorithm complexity. Compared with traditional H.264, H.265 saves about 50 percent on bandwidth and storage resources.
|Image Sensor||1/2.7-inch, 5.0-megapixel progressive scan CMOS|
|Effective Pixels||2,560(H) x 1,920(V)|
|Minimum Illumination||Color: 0.005 lux (F1.2, AGC ON);
B/W: 0.001 lux (F1.2, AGC ON)
|Intelligent Analysis||Fast-moving object detection, abandoned object detection, removed object detection, cross line detection, intrusion detection, area enter/exit detection, and loitering detection|
|Exception Detection||Audio existence detection, abrupt audio increase or decrease detection, scene change detection, and defocus detection|
|Power Supply||12V DC ± 25%, PoE (IEEE 802.3at)|
|Surge Suppression||4 kV|
|Operating Temperature||-30℃ to 60℃ (infrared light disabled)
-30℃ to 40℃ (infrared light enabled)