movement form an image sequence
Previous image stabilization system
accelerometers,
gyros, mechanical dampers ,angular velocity sensors…………..
We prefer to use DIS
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Презентация на тему Digital Image Stabilization
Содержание
- 2. OutlineIntroductionBasic architecture of DISMVI method for DISFuture work
- 3. IntroductionAn image stabilization system manages to remove
- 4. Basic architecture of DISPre-processingStabilizationVideo EncoderVideo DecoderInputOutputStabilized Input
- 5. Basic architecture of DISstabilization-aided encoderStabilizationVideo EncoderVideo DecoderInputOutput
- 6. Basic architecture of DISstabilization-aided decoderStabilizationVideo EncoderVideo DecoderInputOutput
- 7. MVI Method for DISMVI : Motion Vector
- 8. New Algorithm and Architecture of Digital Image
- 9. New Algorithm and Architecture of Digital Image
- 10. A general structure of DIS system with frame memoryPre-processingMotion EstimationFrame RegisterMotion DecisionMotion CompensationFrame MemoryStabilized images
- 11. Pre-ProcessingPre-processingMotion EstimationFrame RegisterMotion DecisionMotion CompensationFrame MemoryStabilized images
- 12. Pre-ProcessingBlock Matching over Bit-Planes
- 14. Pre-ProcessingBlock Matching over Gray-Code Bit-Planes
- 16. Motion EstimationPre-processingMotion EstimationFrame RegisterMotion DecisionMotion CompensationFrame MemoryStabilized images
- 17. Motion Estimation
- 18. Motion Estimation
- 19. Motion DecisionPre-processingMotion EstimationFrame RegisterMotion DecisionMotion CompensationFrame MemoryStabilized images
- 20. Motion Decision (Lack-of-Feature Condition)
- 21. Motion Decision (Lack-of-Feature Condition)
- 22. Motion Decision (Lack-of-Feature Condition)
- 23. Motion Decision (Existence of Moving Objects)Random-like motiontemporally correlated motion
- 24. Motion Decision (Existence of Moving Objects)
- 25. Motion Decision (Intentional Panning Condition)If 80% of
- 26. Motion Decision (Optical Zooming Condition)
- 27. Motion Decision (Spatial Noise Checking of Noise Level)
- 28. Procedure of Motion Decision
- 29. Procedure of Motion Decision
- 30. Motion CompensationFrame Motion Vector (FMV)Accumulated Motion Vector (AMV)Motion Compensation
- 31. Simulation Result
- 32. Скачать презентацию
- 33. Похожие презентации
OutlineIntroductionBasic architecture of DISMVI method for DISFuture work
Слайд 3
Introduction
An image stabilization system manages to remove unwanted
movement form an image sequence
gyros, mechanical dampers ,angular velocity sensors…………..
We prefer to use DIS
Слайд 4
Basic architecture of DIS
Pre-processing
Stabilization
Video Encoder
Video Decoder
Input
Output
Stabilized Input
Слайд 5
Basic architecture of DIS
stabilization-aided encoder
Stabilization
Video Encoder
Video Decoder
Input
Output
Слайд 6
Basic architecture of DIS
stabilization-aided decoder
Stabilization
Video Encoder
Video Decoder
Input
Output
Слайд 7
MVI Method for DIS
MVI : Motion Vector Integration
Basic
idea :
Using some propose method to find reliable
local motion vector(LMV)Calculate the global motion vector(GMV) form LMV.
Integrating the previous frame GMV and current frame GMV to calculate AMV.
Using AMV to compensate current frame to be stabilized frame.
Reference paper [1-4]
Слайд 8 New Algorithm and Architecture of Digital Image stabilization
System
CCD
A/D
DIS for FM
Video
Encoder
Block diagram of a digital video camera
with DIS system.Слайд 9 New Algorithm and Architecture of Digital Image stabilization
System
Lack of features
Existence of moving objects
Intentional panning
Existence of repeated
patternsIntentional zooming
Low signal-to-noise ratio
Large movement out of the searching range of block matching
Complicated Motion (e.g. rotatory motion)
Слайд 10 A general structure of DIS system with frame
memory
Pre-processing
Motion Estimation
Frame Register
Motion Decision
Motion Compensation
Frame Memory
Stabilized images
Слайд 11
Pre-Processing
Pre-processing
Motion Estimation
Frame Register
Motion Decision
Motion Compensation
Frame Memory
Stabilized images
Слайд 16
Motion Estimation
Pre-processing
Motion Estimation
Frame Register
Motion Decision
Motion Compensation
Frame Memory
Stabilized images
Слайд 19
Motion Decision
Pre-processing
Motion Estimation
Frame Register
Motion Decision
Motion Compensation
Frame Memory
Stabilized images
Слайд 23
Motion Decision
(Existence of Moving Objects)
Random-like motion
temporally correlated motion
Слайд 25
Motion Decision
(Intentional Panning Condition)
If 80% of the VALID_LMV
are detected as temporally correlated motion, we consider that
the camera is under a panning condition and no motion compensation is needed Otherwise, we assume that these temporally correlated motion vectors are caused by some moving objects in the image.
Слайд 30
Motion Compensation
Frame Motion Vector (FMV)
Accumulated Motion Vector (AMV)
Motion
