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This Paper Proposes A Method To Measure A Person's Heart Rate From A Frontal Face Video With The Presence Of Motion Using A Webcam. Histogram Of Oriented Gradients (HOG) Facial Detection Was Used To Detect Face And Regions Of Interest (ROIs). A Photoplethysmography (PPG) Signal Was Extracted From The Green Colour Channel From The ROIs. A Detrending Filter, Hamming Window, And Bandpass Filter Were Applied Onto The PPG Signal To Remove Noise. Fast Fourier Transform (FFT) Was Applied To The Filtered PPG Signal, And The Heart Rate Measurement Was Extracted From The PPG Signal Using Power Spectral Analysis. The Results From This Method Were Compared To An Orange Theory Fitbit Monitor. The Results Were Very Similar.