Abstract: The invention relates to a method of using MPEG-7 in object segmentation to extract a desired moving or still image object. The method includes extracting the feature of an existing video object Plane (VOP) by MPEG-7 technique and storing it in an MPEG-7 database, segmenting an input image into a plurality of objects by using the watershed process, comparing each of the plurality of objects to the stored object descriptor feature, and extracting the shape and position of the most similar object in the input image.

Abstract: The invention provides a video object segmentation process for parting video objects from a video or image based on Motion Picture Experts Group (MPEG) compression standard. The process uses MPEG-7 descriptors and watershed segmentation. A database stores MPEG-7 descriptors of video objects for comparison of image regions obtained from watershed segmentation and region combination. The region that is most similar to the descriptors of data in the database is the video object to be found.

Abstract: The invention relates to a method of using MPEG-7 in object segmentation to extract a desired moving or still image object. The method includes extracting the feature of an existing video object Plane (VOP) by MPEG-7 technique and storing it in an MPEG-7 database, segmenting an input image into a plurality of objects by using the watershed process, comparing each of the plurality of objects to the stored object descriptor feature, and extracting the shape and position of the most similar object in the input image.

Abstract: A local nonlinear feedback loop (LNFL) technique and a sigma-delta modulator (SDM) for promoting highly stable oversampling using the LNFL technique. Not only can gain mismatch of the sigma-delta modulator be minimized, but the overload of the later stage sigma-delta modulator can also be resolved without sacrificing the signal noise ratios (SNR) of the overall system. Moreover, using the local nonlinear feedback loop technique of this invention attenuates the voltage signal of the sigma-delta modulator, therefore decreasing the power consumption of the overall sigma-delta modulator system.

Abstract: Based on the recently developed MASH (multistage noise shaping) architecture, an improved architecture--uni-MASH which employs the time-division concept for architecture and circuit reuse is proposed. An oversampling sigma-delta modulator having uni-MASH architecture uses a single stage of time- and capacitor-integrator in lieu of multiple stages of integrators, digital-to-analog converters and quantizers used in the MASH architecture. Uni-MASH retains robust stability and high-ordered noise shaping factor of MASH's virtues.