Znear, and Zfar used in NDC

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[ICCV 2023] PoseDiffusion: Solving Pose Estimation via Diffusion-aided Bundle Adjustment

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Znear, and Zfar used in NDC #25

Closed ZhenhuiL1n closed 11 months ago

ZhenhuiL1n commented 1 year ago

Hi,

It is great work and I have a question:

What are the znear and zfar used in this work to define the NDC coordinate?

Thanks!

jytime commented 11 months ago

Hi,

Thank you! I humbly think this work does not require the setting of znear and zfar, because we do not involve operations related to the range of depth. For example, regarding GGS, we only need the xy value of 2D matches to compute the epipolar (sampson) distance. I think I just put znear and zfar as default or undefined. Please let me know if I misunderstand anything.

Best, Jianyuan