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<< Click to Display Table of Contents >> Navigation: MultiFocusing > Convert ZO-MF corridor file to picking item |
This module converts a Zero-Offset MultiFocusing (ZO-MF) corridor picking file (in the binary .corr format) into a picking item that can be used as input for subsequent MultiFocusing processing steps. The corridor file stores picked positions and corridor widths in the two-dimensional ZO-MF parameter space (velocity and angle axes). This module reconstructs that picking collection in memory, scaled and configured according to the MF tables parametrization, and delivers a ready-to-use GMF Picking Item.
Use this module when you have previously saved ZO-MF corridor picking to a file and need to reload it into the processing flow, for example to pass it to a stacking or imaging step without repeating the interactive picking session. The module automatically derives default corridor half-widths from the quantization step sizes defined in the MF Tables Parametrization item: the velocity-axis corridor width is set to ten times the velocity quantization step, and the angle-axis corridor width spans the full angle range defined by the angle table.
The path to the ZO-MF corridor picking file saved in binary .corr format. This file is typically produced by an interactive ZO-MF picking session and contains the picked corridor positions (center points and widths) in the velocity-angle parameter space for each time sample defined by the MF tables. Select the file using the file browser. The module will report an error and stop if this field is empty or the file cannot be read.
The MF Tables Parametrization item that was used when the corridor picking was originally created. It provides the time axis (number of time samples and time step in ms), the velocity quantization step (m/s), and the angle quantization step and table used to define the two-dimensional ZO-MF parameter space. The module uses this parametrization to correctly size the in-memory corridor collection and to compute the default corridor widths. The parametrization must match the one used during the original picking; a mismatch will produce incorrectly scaled output.
The output picking item containing the reconstructed ZO-MF corridor collection loaded from the input file. The item holds the per-time-sample corridor centers and widths in velocity-angle space, with default corridor half-widths applied: the velocity-axis (X) half-width equals ten times the velocity quantization step, and the angle-axis (Y) half-width spans the maximum angle range derived from the angle table and angle step. Connect this item to downstream MultiFocusing modules such as stacking or imaging steps that require a corridor-constrained picking input.