Employing the interlaced scanning, current TV system can compress the frequency band of TV signal effectively and facilitate transmission.
现行的广播电视系统由于采用隔行扫描方式，从而有效地压缩了电视信号的频带，有利于传输；
Said invention also can inhibit frame-frequency flash during contour scanning in the interlaced scanning system, and can produce image contour intensified effect.
本发明还可抑制隔行扫描系统中的轮廓扫描帧频闪烁，产生图象轮廓增强效果。
Each row from the left to the right of each frame according to the interlaced scanning, from top to bottom odd lines, even two sweeping, used to reduce flicker sensation.
每行从左到右扫描，每帧按隔行从上到下分奇数行、偶数行两场扫完，用以减少闪烁感觉。
In another aspect, for a first interlaced scanning video frame in a video sequence, a decoder decodes a bitplane signaled at frame layer for the first interlaced video frame.
另一方面，对于视频序列中的第一隔行扫描视频帧，解码器解码第一隔行扫描视频帧的帧层处用信号表示的位平面。
In another aspect, for a first interlaced scanning video frame in a video sequence, a decoder decodes a bitplane signaled at frame layer for the first interlaced video frame.
另一方面，对于视频序列中的第一隔行扫描视频帧，解码器解码第一隔行扫描视频帧的帧层处用信号表示的位平面。
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