360SD-Net: 360° Stereo Depth Estimation with Learnable Cost Volume: Difference between revisions

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===Learnable Cost Volume===
===Learnable Cost Volume===
A disparity space image (DSI) is a 3D tensor which stores the matching value between two scanlines.   
A disparity space image (DSI) is a 2D tensor which stores the matching values between two scanlines.   
In 3D (with 2D images rather than 1D scanlines), it is called a 3D cost volume.   
In 3D (with 2D images rather than 1D scanlines), it is called a 3D cost volume.   
Each slice \(i\) is computed by taking images \(I_1\) and \(I_2\), sliding image \(I_2\) down by \(i\) pixels, and subtracting them to yield  
Each slice \(i\) is computed by taking images \(I_1\) and \(I_2\), sliding image \(I_2\) down by \(i\) pixels, and subtracting them to yield