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Motion Compensated Temporal Filter. t Cr’. t y. t Cb’. B. Cr. Cb. Y. R. G. Motion-Compensated JPEG 2000. t. Output. Layered Bitstream. GOP side information. JPEG 2000 Encoder. Motion vectors. Scaling coeffs. Colorspace Conversion. Multicomponent Scaling. Scale. HVSBM.

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Motion compensated jpeg 2000

Motion

Compensated

Temporal

Filter

tCr’

ty

tCb’

B

Cr

Cb

Y

R

G

Motion-Compensated JPEG 2000

t

Output

Layered Bitstream

GOP

side information

JPEG 2000 Encoder

Motion vectors

Scaling coeffs.

Colorspace Conversion

Multicomponent Scaling

Scale

HVSBM

Scale

Scale


Closed loop hierarchical mc jpeg 2000

ˆ

tL0

-

Σ

+

JPEG 2000

ENCODER

R1

R0

{tL1}

LL

Closed-Loop Hierarchical MC-JPEG 2000

Temporal Subbands

Low Resolution Input Sequence

tL0, tH0

Base Layer Bit-stream

JPEG 2000

ENCODER

ME/MCTF

JPEG 2000

DECODER

MVs

ΔLL

Next-Higher Resolution

Enhancement Layer Bit-stream

ME/MCTF

Spatial and Temporal High Subbands


Open loop hierarchical mc jpeg 2000

JPEG 2000

ENCODER

JPEG 2000

ENCODER

R1

R0

{tL1}

Low-Pass

Filter

High-Pass

Filter

LL

Open-Loop Hierarchical MC-JPEG 2000

Temporal Subbands

Low Resolution Input Sequence

Base Layer Bit-stream

tH0

ME/MCTF

tL0

ΔLPF

MVs

ΔHPF

Enhancement Layer Bit-stream

Next-Higher Resolution

ME/MCTF

Spatial and Temporal High Subbands


Closed loop results for harbour sd
Closed-Loop Results for Harbour (SD)

Most rate allocated to low-res.

Most rate allocated to high-res.


Open loop results for harbour sd
Open-Loop Results for Harbour (SD)

Solid lines: Open-loop

Dotted lines: Closed-loop bounds


System features
System Features

  • Motion-Compensated JPEG 2000

    • Combines the versatile motion compensated temporal filter with an industry standard JPEG 2000 codec.

    • Scalable wavelet/subband coding is performed both temporally and spatially.

  • Hierarchical MC-JPEG 2000

    • Codes up through the desired resolution level, eliminating the need to process unneeded higher resolutions.

    • Closed-loop system is an extension of MC-JPEG 2000.

    • Open-loop system eliminates the embedded decoder, reducing the complexity of the encoder.


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