LSTM-Based Neural Network to Recognize Human Activities Using Deep Learning Techniques

Algorithm 1

Removing duplicate image frames

(i)	Prerequisites: Generate image frames from input images and store them for further process.
(ii)	Step 1. Iterate through all the images of a directory
(iii)	Step 2. Generate the file hash using MD5 method for each image by dividing n-bit state into bit words and label it.
(iv)	Step 3. Perform four stage n-bit message block process using nonlinear function F and store it in a list.
(v)	Step 4. Verify the image hash value in hash keys list.
(vi)	Step 5. If exists, mark the image as duplicate.
(vii)	Step 6. Remove the image from the dataset.
(viii)	Step 7. Repeat the process from step 2 to step 6 for other dataset images