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A progressive coding algorithm is proposed that represents three-dimensional dynamic objects with a semi-regular mesh sequence and compresses the sequence using the spatiotemporal wavelet transform. The semi-regular mesh structure is constructed for the first frame and then mapped to subsequent frames based on the hierarchical motion estimation, and simulation results demonstrate that the proposed algorithm provides significantly better compression performance than the static mesh coder, which encodes each frame independently.

The motion compensation-discrete cosine transform (MC-DCT) coding is an efficient compression technique for digital video sequence. However, the compressed video signal is vulnerable to transmission errors over noisy channel. In this paper, we introduce a novel concept of parity-check motion vector (PMV) into the MC-DCT coder in order to improve its error robustness. By inserting the redundant PMV's systematically into the compressed bitstream, the proposed algorithm is capable of recovering very severe transmission errors, such as loss of an entire frame, in addition to detecting the errors effectively without requesting any information from external devices. The proposed algorithm is implemented based on the H.263 coder, and tested intensively in a realistic error prone environment. It is shown than the proposed algorithm provides much better objective and subjective performances than the conventional H.263 coder in the error prone environment. Index Terms: Error detection, error recovery group, H.263, motion compensation-discrete cosine transform (MC-DCT), parity-check motion vector, wireless channel.

Ion beam assisted deposition (IBAD) is used for the fabrication of low operating voltage pentacene thin-film transistors with high-[kappa] gate dielectrics. The high-[kappa] gate dielectrics obtained by IBAD has shown promise for realizing a low operating voltage pentacene thin-film pentacenes.

The effects of tetrafluoromethane (C[F.sub.4]) plasma treatment of indium-tin-oxide (ITO) anode on indium diffusion into a poly(3,4-ethylene dioxythiophene):poly(styrene sulphonate) (PEDOT:PSS) layer are analyzed. The presence of indium in the PEDOT:PSS layer has showed a correlation with performance degradation of polymer light-emitting diodes.