发明名称 |
System and method for spatio video image enhancement |
摘要 |
A method for improving quality of low light video images including: receiving a current video frame; temporally enhancing it by applying a first weight matrix including higher weight factors for stationary regions and lower weight factors for moving regions to the received frame and a reference frame to generate an enhanced temporal video frame; spatially enhancing the enhanced temporal video frame by applying a second weight matrix including higher weight factors for stationary regions and lower weight factors for moving regions to generate an enhanced spatial video frame; and motion enhancing the enhanced temporal video frame by extracting matched rigid moving objects in a previous or future frame and processing each of the extracted matched rigid moving objects with a corresponding rigid object in the enhanced temporal or spatial or raw current video frame. |
申请公布号 |
US9202263(B2) |
申请公布日期 |
2015.12.01 |
申请号 |
US201514603996 |
申请日期 |
2015.01.23 |
申请人 |
ARECONT VISION, LLC |
发明人 |
Pavani Sri Rama Prasanna |
分类号 |
G06T5/00;G06K9/00;G06K9/46;G06K9/62;H04N5/57;G06T5/20;G06T5/50;G06T7/20 |
主分类号 |
G06T5/00 |
代理机构 |
Christie, Parker & Hale, LLP |
代理人 |
Christie, Parker & Hale, LLP |
主权项 |
1. A method for improving quality of low light video images, the method comprising:
receiving a current video frame; generating a reference video frame from the received current video frame, the reference frame including smooth image regions and non-smooth image regions; computing a likelihood metric to determine the likelihood of a pixel to correspond to smooth image regions and non-smooth image regions in the received current video frame by comparing the generated reference frame and the received current video frame; computing a weight matrix from the received current video frame and the generated reference frame to minimize edge blur in non-smooth image regions, wherein the weight matrix includes higher weight factors for the smooth image regions and lower weight factors for the non-smooth image regions, in the received current video frame; and calculating a spatial video frame by applying the weight matrix with higher and lower weight factors to the received current video frame and the generated reference frame. |
地址 |
Glendale CA US |