Setting Using Internet Explorer

Setting (continued)

Basic Settings2 (continued)

(TV) is applicable to VN-V series only. (TX) is applicable to VN-X series only.

DJPEG

Frame Size

For specifying the JPEG picture quality (rate control mode) and size (target file

 

size). When AVFS1B to AVFS7B is selected, the quantization table during JPEG

 

encoding will be maintained and the file size will increase/decrease according to

 

the input signals.

 

Typical sizes will be displayed in the Size field. When recording JPEG data to a

 

recorder with a limited storage capacity, the maximum recording time may vary

 

as the file size fluctuates under this setting.

 

When AAFSB is selected, encoding is performed such that the target file size is

 

the average size of multiple JPEG images.

 

You can enter the target size in the Size field.

 

[Picture quality values : VFS1 to VFS7, AFS]

Memo:

● The picture size can be specified only when the picture quality value is set to AFS.

[Size setting range in Quad VGA mode：40 KB to 200 KB ] (TX)

[Size setting range in VGA mode：10 KB to 100 KB ]

[Size setting range in QVGA mode：3 KB to 33 KB ]

EMPEG4

 

Bitrate

For setting the MPEG4 encoding bit rate.

 

 

[Set values : 64 kbps to 8000 kbps]

 

 

 

 

Bitrate Control

For selecting whether to set the MPEG4 rate control mode to CBR (Constant Bit

 

 

Rate) or VBR (Variable Bit Rate).

 

 

CBR

: Encoding is performed at a fixed bit rate regardless of the condition of

 

 

 

the input video signals. Enables easy forecast of the bit rate.

 

 

VBR

: Changes the bit rate according to the condition of the input video

 

 

 

signals. Picture quality is stable, but forecast of the bit rate is difficult.

 

 

 

 

FPS

For setting the MPEG4 frame rate.

 

 

[Set values : 1 fps, 7.5 fps, 10 fps, 15 fps, 30 fps (TV)]

 

 

 

 

I Frame Interval

For setting the I-frame interval. MPEG4 starts encoding from the I-frame.

 

 

Shortening the interval stabilizes the picture quality even when there are rapid

 

 

changes in the video image. However, the picture quality for images with little

 

 

change will deteriorate. In addition, when multicast packet loss occurs, the time

 

 

interval required to restore the image is shorter.

 

 

[Set values : 15, 30, 45, 60, 75]

 

 

 

 

Priority

For selecting whether to assign priority to the frame rate or picture quality during

 

 

MPEG4 encoding.

 

 

FPS

: Assigns priority to frame rate. Select this setting to enable smooth

 

 

 

monitoring of motion images.

 

 

Quality

: Assigns priority to picture quality.

 

 

 

 

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