The sub-bands are coded and the information of direction cosine is used for iris matching, by means of which this method overcomes zoom, shift and illuminance and obtains approving effect.
The sub-bands are coded and the information of direction cosine is used for iris matching, by means of which this method overcomes zoom, shift and illuminance and obtains approving effect.
将分解后子带作为特征编码，利用空间向量的方向夹角余弦作为匹配方法，有效克服了缩放、平移、光照等影响，达到了较好的识别效果。