Abstract: A system and method are disclosed that provide an advanced design of coded video packets using a resynchronization maker for video transmission applications. The resynchronization marker has a fixed ranged bit length within each video object plane or video frame and is cyclically updated video frame by video frame. This coded video packet structure allows decoders to automatically find the video object plane boundary without additional bit stream overhead. This has a particular advantage when a video object plane header is lost during transmission.

Abstract: A method and system of partitioning and packetizing video data in an H.26L environment. An H.26L coding system is disclosed, comprising: a video coding layer (VCL) having a first partition mode and a second partition mode for partitioning video data, wherein the second partition mode separately partitions low and high frequency DCT coefficients; and a network adaptation layer (NAL) for packetizing data into a first and second packet, wherein the first packet is configured to contain all low frequency DCT coefficients and the second packet is configured to contain all high frequency DCT coefficients when the second partition mode is implemented by the VCL.

Abstract: A system and method are disclosed that provide a simple and efficient layered video coding technique using a backward adaptive rate-distortion optimized data partitioning (RD-DP) of DCT coefficients. The video coding system may include an rate-distortion optimized data partitioning encoder and decoder. The RD-DP encoder adapts the partition point block-by-block which greatly improves the coding efficiency of the base layer bit stream without explicit transmission thereby saving the bandwidth significantly. The RD-DP decoder can also find the partition location in backward-fashion from the decoded data.

Abstract: A video coding system and method for coding an input frame in which the evolution of discrete cosine transform (DCT) coefficients is modeled as a Laplace-Markov process, the system comprising: a base layer processing system for generating a base layer reconstruction; an enhancement layer processing system for generating an enhancement layer reconstruction; and an entropy constrained scalar quantizer (ECSQ) system for descritizing a prediction residual between the input frame and an estimation theoretic (ET) prediction output; wherein the ECSQ system utilizes an ECSQ that comprises a uniform threshold quantizer with a deadzone size defined by the equation: 1 Γ ⁡ ( α , t * ) = 2 ⁢ ( 1 1 - ρ 2 ⁢ ⅇ t * - 1 ) , where ⁢ ⁢ Γ ⁡ ( α , β ) = ( ⅇ α - 1 ) ⁢ exp ⁢ { - α ⁡ [ d ⁡ ( α - δ ⁡ ( α ) ) - d ⁡ ( - β ) d ⁡ ( α -

Abstract: A scalable decoder system having a decoder reconstruction system, wherein the decoder reconstruction system comprises: an estimation algorithm 1 x ~ i , n e = a i , n + E Z ⁢ { d i , n ⁡ ( ρ ; x ~ i , n - 1 e + Z ) }

Abstract: An apparatus (220) and a method for partitioning data to improve error resilience for subband-encoded image data. Specifically, one or more segment markers (symbols) are entropy encoded along with the bitstream (payload) into a packet.

Abstract: To avoid generating visible artifacts in the image, such as those generated when mildly defective areas are not identified, a system and method for identifying and correcting defects in a digital image including adjusting the pixel values of pixels surrounding the defective pixels are disclosed. The method for correcting defects in a input digital image comprises the steps of identifying the defects to form at least one defect map, generating a region of interest for each defect map, correcting the values of the pixels in each defect map, and adjusting the values of the pixels in each region of interest.