Zero Crossing Analysis: The Forgotten Acoustic Feature of Mid-2000s Speech Recognition

How zero crossing rate and zero crossing features shaped speech recognition and language identification in the mid-2000s before deep learning.

120 Frames per Second: How High-Speed Video Reshaped Object Tracking in the Mid-2000s

Explore how 120 fps high-speed video became a key benchmark for object tracking, stereo reconstruction, and motion analysis in mid-2000s computer vision research.