Ghosted images

Phil2440 wrote on 6/26/2023, 7:24 AM

Video Movie Studio v17 (Build223)
For the first time in many years I've recently taken some clips of fast moving subjects, aircraft at an airshow.
These were encoded into *.mts files using the Sony AVCHD codec.

I am suffering from a high degree of ghosting in some frames.
I guess that this is a problem with the cameras codec and compression settings.
But I'm wondering if there is any form of post processing Video FX I can use in VMS to correct or reduce the problem.

Thanks

Comments

j-v wrote on 6/26/2023, 7:43 AM

What is the MediaInfo of the files from your camera?

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Phil2440 wrote on 6/26/2023, 8:25 AM

General
ID                                       : 0 (0x0)
Complete name                            : V:\Store\2023\20230624_115603.MTS
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 41.3 MiB
Duration                                 : 21 s 242 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 16.3 Mb/s
Maximum Overall bit rate                 : 18.0 Mb/s
Frame rate                               : 25.000 FPS
Recorded date                            : 2023-06-24 11:55:41+01:00
Writing application                      : Sony ILCE-6000

Video
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, picture structure       : Frame
Codec ID                                 : 27
Duration                                 : 21 s 320 ms
Bit rate mode                            : Variable
Bit rate                                 : 15.4 Mb/s
Maximum bit rate                         : 16.0 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan type, store method                  : Interleaved fields
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.297
Stream size                              : 39.1 MiB (95%)
IrisFNumber                              : 18.000000

Dexcon wrote on 6/26/2023, 8:38 AM

The video that you have has already been encoded from the camera original into a BluRay render - this is probably the cause depending on the render settings used to render and the project settings of the original video for the BD .mts render settings.

Try going back to the original camera video to avoid those .mts render problems. If the original camera video is not available and all you have available is the BD .mts render, it's unlikely that the ghosting can be corrected because it's embedded in that .mts video.

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Phil2440 wrote on 6/26/2023, 8:56 AM

Thanks for that hint j-v
I think I see the problem.
My camera settings are set to record 25p, so I've always assumed I was working with progressive scan.
But the MediaInfo data is showing the files are interlaced!

Phil2440 wrote on 6/26/2023, 9:00 AM

Thanks Dexcon.
I was expecting that I was going to be stuck with that 😖
I need to dig a bit deeper into the Sony a6000s menus.

j-v wrote on 6/26/2023, 9:25 AM

Thanks for that hint j-v
I think I see the problem.
My camera settings are set to record 25p, so I've always assumed I was working with progressive scan.
But the MediaInfo data is showing the files are interlaced!

OK, glad you saw it yourself.
I believe there is a solution, but first I have to know how you did render causing those ghosts, exact rendertemplate please and what is the goal for your renders?
 

Last changed by j-v on 6/26/2023, 9:27 AM, changed a total of 1 times.

met vriendelijke groet
Marten

Camera : Pan X900, GoPro Hero7 Hero Black, DJI Osmo Pocket, Samsung Galaxy A8
Desktop :MB Gigabyte Z390M, W11 home version 24H2, i7 9700 4.7Ghz,16 DDR4 GB RAM, Gef. GTX 1660 Ti with driver 566.14 Studiodriver and Intel HD graphics 630 with driver 31.0.101.2130
Laptop  :Asus ROG Str G712L, W11 home version 23H2, CPU i7-10875H, 16 GB RAM, NVIDIA GeForce RTX 2070 with Studiodriver 576.02 and Intel UHD Graphics 630 with driver 31.0.101.2130
Vegas software: VP 10 to 22 and VMS(pl) 10,12 to 17.
TV      :LG 4K 55EG960V

My slogan is: BE OR BECOME A STEM CELL DONOR!!! (because it saved my life in 2016)

 

FayFen wrote on 6/26/2023, 9:53 AM

@Dexcon , mts file will show in media info as "Blue ray"

General
ID                                       : 1 (0x1)
Complete name                            : D:\testim Benny\900-012.MTS
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 73.2 MiB
Duration                                 : 35 s 12 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 17.5 Mb/s
Maximum Overall bit rate                 : 18.0 Mb/s
Recorded date                            : 2021-10-13 11:20:50+02:00
Writing application                      : Panasonic

Video
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, GOP                     : M=3, N=12
Codec ID                                 : 27
Duration                                 : 34 s 960 ms
Bit rate mode                            : Variable
Bit rate                                 : 16.6 Mb/s
Maximum bit rate                         : 16.8 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan type, store method                  : Separated fields
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.320
Stream size                              : 69.0 MiB (94%)

 

@Phil2440 , I don't have my VMS installed but try to set your project "deinterlaced" differently.

Phil2440 wrote on 6/26/2023, 10:07 AM

Hi j-v
I haven't consciously rendered the file! That is the *.mts file copied from my camera SD card to a directory on my PC.
I guess that means the camera (Sony a6000) software is doing the rendering based on some quality settings. I certainly haven't knowingly set a "Blu-Ray Video" format.

j-v wrote on 6/26/2023, 10:40 AM

OK, so there is no renderproblem.
Best solution to overcome these things is to reset your camera to make progressive files with 50fps

met vriendelijke groet
Marten

Camera : Pan X900, GoPro Hero7 Hero Black, DJI Osmo Pocket, Samsung Galaxy A8
Desktop :MB Gigabyte Z390M, W11 home version 24H2, i7 9700 4.7Ghz,16 DDR4 GB RAM, Gef. GTX 1660 Ti with driver 566.14 Studiodriver and Intel HD graphics 630 with driver 31.0.101.2130
Laptop  :Asus ROG Str G712L, W11 home version 23H2, CPU i7-10875H, 16 GB RAM, NVIDIA GeForce RTX 2070 with Studiodriver 576.02 and Intel UHD Graphics 630 with driver 31.0.101.2130
Vegas software: VP 10 to 22 and VMS(pl) 10,12 to 17.
TV      :LG 4K 55EG960V

My slogan is: BE OR BECOME A STEM CELL DONOR!!! (because it saved my life in 2016)

 

EricLNZ wrote on 6/26/2023, 6:24 PM

@Phil2440 Are your project settings set to Vegas's default deinterlacing method of "Blend Fields"? If so that can cause ghosting, especially when there's movement. Change to "Interpolate Fields" to preserve both fields. Personally I consider Interpolation should be the default.