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Motion-Compensated JPEG 2000

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

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  1. 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

  2. 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 …

  3. 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

  4. Closed-Loop Results for Harbour (SD) Most rate allocated to low-res. Most rate allocated to high-res.

  5. Open-Loop Results for Harbour (SD) Solid lines: Open-loop Dotted lines: Closed-loop bounds

  6. 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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