High definition cameras have an important role to play in video surveillance applications. They can provide video that is more useful, with more image detail and with wider coverage than standard resolution cameras. Depending on your specific requirement, you can choose different HD formats network cameras. For face recognition and vehicle plate license number recognition etc applications, you may select megapixel network cameras that support up to 1080p+ resolution. To know the size of different HD formats, you can check the following table.
|Format||Megapixels||Resolution (pixels)||Aspect ratio|