Vivotek Inc.

Tamkang University

Ting-Wen Chen

Chien-Wen Liu

Tao-Cheng Yang

Yang-Han Lee

Li-Ming Chen

Tzong-Tyng Hsieh

The present invention provides a block-based principal component analysis transformation method and a device thereof. The principal component analysis transformation method includes: obtaining an input signal; dividing the input signal and obtaining a plurality of one-dimension vectors corresponding to the divided input signal, wherein a number of the one-dimension vectors is a division number; after arranging the one-dimension vectors to a two-dimension vector, subtracting an average value of the one-dimension vectors of the division number to obtain a zero-mean vector; calculating a covariance matrix of the zero-mean vector; calculating an eigenvector of the covariance matrix; multiplying the zero-mean vector by the eigenvector to obtain a projection coefficient.

Block-based principal component analysis transformation method and device thereof

A pre-processing method for video data playback and a playback interface apparatus are provided, wherein a video receiver module receives a video data with clips, the clips corresponding to numbers in first and second time-sequences, and wherein a display module creates a corresponding GUI component for each clip and arranges the GUI components in the playback interface. When two clips consecutive in the first time-sequence are not consecutive in the second, the display module places their corresponding GUI components separately or distinguishably. By discerning the several time-sequences of the video data, this invention ensures random access of data while being visually intuitive and uniform design-wise.

Pre-processing method for video data playback and playback interface apparatus

Display screen portion with transitional progress bar graphical user interface

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Taipei, Taiwan

Ting-Wen Chen