Bosch Appliances NDN-921 Video resolution, Cif, 4CIF/D1, 720p, Expert Settings, GOP structure

FlexiDomeHD 720p IP Camera Advanced Mode en 67

advantageous with low bandwidths. The image rate in ips (images per second) is displayed next to the slider.

Video resolution

Select the desired resolution for the video image. The following resolutions are available:

–CIF

352 × 240 pixels

–4CIF/D1

704 × 480 pixels

–720p

1280 × 720 pixels

Note:

The video resolution set here is ignored by HD streams.

Expert Settings

if necessary, use the expert settings to adapt the I-frame quality and the P-frame quality to specific requirements. The setting is based on the H.264 quantization parameter (QP).

GOP structure

Select the structure you require for the Group of Pictures. Depending on whether you place greater priority on having the lowest possible delay (IP frames only) or using as little bandwidth possible, you choose IP, IBP or IBBP.

I-frame distance

Use the slider to set the distance between I-frames to Auto or to between 3 and 60. An entry of 3 means that every third image is an I-frame.The lower the number, the more I-frames are generated.

I-frame quality

This setting sets the image quality of the I-frames. Select Auto to ensure that the maximum bit rate is not exceeded. Auto automatically changes the I-frame quality to the settings for the P-frame image quality.

Bosch Security Systems Installation and Operation Manual AR18-10-B013 v1.52 2011.06