CT Scan Abnormal Tissue Region Detection
CT Scan Abnormal Tissue Region Detection
HardArrays100% accepted
A Delhi hospital radiologist uses AI to detect tumors in CT scans. Given a 2D pixel intensity matrix, identify the largest rectangular area where all pixels show abnormally high density readings.
Approach
Given M×N matrix of pixel intensities, find largest rectangle where all values exceed threshold.
Input
scan=[[150,160,165],[155,170,175],[160,165,180]], threshold=155
Output
6
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