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DM365 or DM368's ISP handles maximum resolution

Michael.zhu
Prodigy 85 points

From the VPFE document, it appears that 

1.If the image width is larger than 2176,it must be scale down at IPIPEIF(Horizontal pixel decimator),split into several blocks.

2.In Raw pass-through mode,where images up to 8190 pixels per line may be processed ,the iput data is directly written to DDR without any image process in IPIPE module.

 

my questions:

1.How to recovery the original image after splitting into several blocks?     By using RSZ function in IPIPE module?

2,What is TI's official opinion for DM365/DM368's ISP maximum resolution and frame rate under any image process,5M or more ?

  • 0
    TI__Mastermind 41665 points

    Michael.zhu said:
    1.How to recovery the original image after splitting into several blocks?     By using RSZ function in IPIPE module?

    If you used the horizontal decimation option than you could scale the resulting image up to a larger resolution using the resizer, however the detail in the decimated pixels is not recoverable, you will lose effective horizontal resolution by using the decimator.

    Michael.zhu said:
    2,What is TI's official opinion for DM365/DM368's ISP maximum resolution and frame rate under any image process,5M or more ?

    The maximum resolution that can be captured as you suggest is 8190x8190 using a raw pass through for capture, and than processing the raw image later in software or by dividing up the image into <2176 wide segments for hardware processing.

    The maximum frame rate is limited primarily by the maximum pixel clock, for master mode this is 75 MHz and for slave mode this is 120MHz (both are defined in section 6.12.1.6 of the datasheet). This being said, a given resolution will have a particular maximum frame rate that can be obtained while staying within the maximum pixel clock requirements.