🕹️ Practice arcade
Extra games, not extra homework — timed sprints, survival runs that end when your lives run out, and mastery drills built from the same skills Computer Vision teaches.
⚡ Sprints
Beat the clock.
📦 Bounding Box IoU & NMS Sprint
Compute IoU from two boxes' corners, then decide whether NMS actually suppresses a lower-confidence overlap -- intersection over union, never a threshold mix-up.
🎯 RANSAC Formula Sprint
Solve P=1-(1-w^n)^k for either side -- the success probability, or the iterations needed to hit a target confidence.
🎭 Segmentation Overlap Metrics Sprint
Convert between Dice and IoU for the same pair of masks -- related, but never numerically the same value.
🎯 Precision, Recall & F1 Sprint
Compute precision, recall, or F1 from a confusion matrix, and tell the two apart when it counts -- they share no denominator.
📷 Camera Projection Sprint
Project a camera-frame 3D point to a pixel coordinate with u=f_x(X/Z)+c_x -- the intrinsic matrix's own arithmetic, not a derivation.
🧮 Vision Arithmetic Sprint
Count a conv layer's learnable parameters, or score two embeddings by cosine similarity -- two fast, exact vision-math staples.
⚡ Gradient Vector Sprint
Build the gradient vector, then its magnitude -- as many as you can in a minute.
💀 Survival
Each miss costs a life — lose them all and the run ends.
🎯 Mastery
No clock — just get N in a row.