It demarcates the start of active video on each row of a video frame.

它界定了视频帧每一行中有效视频的起始位置。

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Then, a multiscale morphology gradient-based watershed segmentation algorithm is introduced to segment the video frame in the spatial domain.

然后，引入基于多尺度形态梯度的分水岭分割算法，对图像进行空域分割。

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In this thesis, firstly, video frame segmentation algorithm of multi-modal information based on artificial text and visual characteristics is proposed.

本文首先给出一种基于人工文本与视觉特征的多模态信息视频帧分割算法。

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First, the video frame is transformed and encoded on to a data beam.

ECONOMIST: Optical recognition

Instead of laboriously comparing each incoming video frame with each stored target image, they could then search for all the targets at once.

ECONOMIST: Optical recognition

If any of these targets matches the video frame, the corresponding reference beam is emitted by the memory, and picked up by a detector.

ECONOMIST: Optical recognition