PROJECT: PERCEPTMEDIA

SCALABLE STREAM CODING FOR ADAPTIVE FOVEATION ENHANCED PERCEPT MEDIA COMMUNICATION

Network Adaptation: A case study
with scalable video across network asymmetry

Stream Adaptation

3 Way Tradeoff

APPROACH

Rate Adaptive Channels

Full Cascade Adaptation

MPEG-2  Rate Control

Motion Vector Bypass

Transcoder’s Self-Organizing States

3-way Tradeoff

Flow: “Single Stream Multiple Form”

PERCEPTUAL
(DOWN) SCALABILITY

MPEG-2  Spatial Rate Control

Slide 15

Sensitivity: Spatial SNR Control

DYNAMIC OBJECT TRACKING

After December demo we  tried a content based object detection and temporal scalability..

Object Tracking in Stream by Inverse Motion Vector Projection

TEMPORAL SCALABILITY MODEL

Motion Vector Transformation for Temporal Scalability

DEMO

object tracking in video
Spatial scalability
Temporal scalability

CONTROL SENSITIVITY

Reflection on Scalable Transcoding

Few Additional Works

Reflection
Active Programmable Harness

Transcoding Tree Determination

Active Harness Harness

Generalized Harness: State Model

Beyond Video: Active Hypermedia Accelerator

Lessons Learned:A Top Down View

What an adaptive stream might need from active network?

Reflection: Resource Adaptation

Reflections: Performance

Top Down Reflection