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DSS VNF and ISS VNF question

xin feng
Prodigy 150 points

Now I have a DM8127 camera running IPNC 3.5。some questions fowllowed:

1、the difference between DSS VNF and ISS VNF?

2、Does VNF  contain NSF and TNF？is VNF 3D-noise filter?

3、Does VNF have a limit to image width?

3、which condition can VNF run in lowpower or fullfeature?

thanks a lot

  • 0
    TI__Expert 8780 points

    Hi Xin,

    Answers to your questions:

    1. DSS and ISS based VNF are 2 different noise filter implementations. DSS VNF is included in HDVPSS subsystem and can do upto 1080p 60fps noise filtering. ISS VNF is based in ISS+SIMCOP and can do upto 1080p30 fps noise filtering. ISS VNF is higher in quality than DSS VNF.

    2. Both DSS VNF and ISS VNF support Spatial and temporal filtering. Thus both are 3D-noise filters.

    3. VNF has a limit of 1080p (2M).

    4. In low power mode HDVPSS is disabled thus DSS VNF cannot work. In Full feature mode user can select between ISS VNF and DSS VNF.

    Regards

    Rajat

    Regards

    Rajat

  • 0 in reply to Rajat Sagar
    Prodigy 150 points

    Hi Rajat,

    Thanks for your help.

    1、VNF has a limit of 1080P(2M). Is the limit in DSS VNF or ISS VNF?

    2、if I want to make use of VNF to filter 5M(2448x2048) image. How can I do?

  • 0 in reply to xin feng
    TI__Expert 8780 points

    Xin,

    The limit is for DSS VNF.

    Which release version of IPNC RDK are you using?

    Regards

    Rajat

  • 0 in reply to Rajat Sagar
    Prodigy 150 points

    Hi Rajat,

    1、I am using ipnc 3.5.  Now I  want to make use of VNF to filter 5M(2448x2048) image. How can I do?

    2、you tell me that In low power mode HDVPSS is disabled thus DSS VNF cannot work. Can ISS VNF work in low power mode?

    thanks a lot.

  • 0 in reply to Rajat Sagar
    Prodigy 150 points

    hi Rajat,

    Now my DM8127 camera run ISS VNF in lowpower mode. Camera image size is 2448x2048. when vnflink run, I can see the followed error information:

    [m3vpss ] Error :: src/msp_vnf.c : MSP_VNF_CheckParams : 4861 :: Exiting because : pCreateParam->ulInputStride % 32 != 0

    But 3d-filter take effect. Do I need to consider  the error information?

    thanks a lot!

  • 0 in reply to xin feng
    Prodigy 150 points

    Now my DM8127 camera run ISS VNF in lowpower mode. Camera image size is 2448x2048. when vnflink run, I can see the followed error information:

    [m3vpss ] Error :: src/msp_vnf.c : MSP_VNF_CheckParams : 4861 :: Exiting because : pCreateParam->ulInputStride % 32 != 0

    But 3d-filter take effect. Do I need to consider  the error information?

    thanks a lot!