Signal Processing
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Nagabhushan S N

PhD Student at IISc

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6 How does DCT decorrelate images? Jul 2
5 Why should an image be blurred using a Gaussian Kernel before downsampling? Oct 20 '18
4 Why can't a causal digital filter have an infinitely sharp transition between the passband and the stopband? Dec 26 '17
3 For a system to be causal, number of finite zeros <= number of finite poles. Why? Dec 26 '17
1 Where to place origin when warping an image using 3D rotation and translation? Jul 7
1 Dataset suggestion: video dataset with accurate depth and pose info Jul 7
1 Math for projecting 3d world point to VR image coordinates Jul 15
1 How does transformation matrix and camera matrix change when indexing pixels from -1 to 1 instead of 0 to N-1 Aug 20
1 Detecting corners using structure tensor matrix Jul 22
0 How does transformation matrix and camera matrix change when indexing pixels from -1 to 1 instead of 0 to N-1 Aug 23
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