FOR-A FA-9520 - About Scene Cut Detection and Frame Delay Settings

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 AVO Setup
Parameter
Default
Setting
range
Description
Response
(Filtering strength)
Level 3
Level 1 -
Level 5
Sets the filtering strength for calculating the
mean distances that are applied to
histograms created using the sample data.
The larger the value, the more gradually
filtering is performed, with a more stable
image but slower response. The smaller the
value, the less stable the image, but with a
faster response.
Scene Cut Det
*1
(Scene cut
detection)
Off
Off,
On
When set to On, the cut transitions are
detected and images are properly adjusted
even if there are sharp luminance changes.
Gamma Mode
(Gamma correction)
On
Off,
On
When set to On, signal levels are adjusted
using the Gamma Level settings.
*1 The following delay will be produced when performing scene cut detection depending on
the input signal format.
Interlaced formats: 2 fields (1 frame) + some lines
Progressive and PsF formats: 2 frames + some lines
Scene cut detection images will be properly adjusted and output when enough frame delay is
set. If the amount of frame delay is insufficient, Scene cut detection will not be properly
processed. To perform AVO scene cut detection properly, set enough delay using the FRAME
DELAY function. The output delay varies depending on the SYNCRO MODE, input signal
format, FRAME DELAY setting, and video signal H/V phase difference. FRAME DELAY
settings are described on the next page.
9-2-2-1. About Scene Cut Detection and Frame Delay Settings
To properly perform AVO scene cut detection and adjustment, Frame Delay must be set in
the setting range according to the menu settings (9-2-3 “Frame Delay” menu) as shown in
the table below.
FRAME DELAY Setting Range Chart
*1
SYNCHRO
*2
Setting Range per Input Video Format
525/60i
625/50i
1080/59i
1080/50i
720/59p/50p
1080/59p,50p
1080/23PsF, 24PsF
FRAME
1 to 8 FRAME
2 to 8 FRAME
LINE/AVDL
Cannot be set
Cannot be set
*1 Synchro Mode settings in section 9-4-1 “FS1/FS2 Video System”
*2 The current input video format can be verified in the Unit/Video Status menu
(Sec. 9-7-1) for each input selected in the FS Input Select menu (Sec. 9-2-1).
IMPORTANT
Adjust the audio delay as required in the Audio Delay menu (Sec. 9-3-4) to account for
any additional video signal delay produced by changing Frame Delay settings in the
Frame Delay menu (Sec. 9-2-3).