Medical Image Pixel Extraction via Block Positioning Subtraction Technique for Motion Analysis

Abstract

This paper presents a study on image pixels via block based technique using block positioning subtraction technique to determine the motion estimation. Motion estimation occurs in areas of interest while processing the video sequences to determine the motion estimation. Due to loading full video sequences the computational cost and the processing time for motion estimation will also increase. The block-based positioning subtraction technique extracts the small block of interest to be processed. This small block of interest is processed individually without need to process the full frame. This technique divides the frames into small 8 × 8 macro blocks and identifies the location of small block of interest in the frame. 8 × 8 block of interest will be extracted from the frame to determine the pixels value. Extracted pixels value from the 8 × 8 block of interest will be subtracted and analyzed for motion changes.