Presented BySantosh Kumar Chhotray

National Institute of Technology, Durgapur

Introduction

Video Compression Process

Block Matching Algorithms

Problem Definition

Proposed Algorithm

Simulation Result

Conclusion

References

Why Block Matching Algorithm?

Factors affecting motion estimation

Object Movement

Environment movement

Video Compression Process

Exhaustive Search

Three Step Search

Four Step Search

Diamond Search

Modified Three Step Search

1. Case-1:Search at centre

2. Case-2:Search at corner

3. Case-3:Search at axis

Sub_case-1:Search at corner

Sub_case-2Search at axis

Search for local minima

Case-1:Best possible search

Case-2:Search at corners

Case-3:Diamond Search initiated

Sub_case-1: Search at corner

Case-3:Diamond Search

Sub_case-2: Search at axis

Search for local minima

Moderate PSNR value

Reduced computational time

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