Retrieval and registration of long-range overlapping frames for scalable mosaicking of in vivo fetoscopy.
Retrieval and registration of long-range overlapping frames for scalable mosaicking of in vivo fetoscopy.
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DOI：
10.1007/s11548-018-1728-4
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发表时间：
2018-05
影响因子：
3
通讯作者：
Vercauteren T
中科院分区：
文献类型：
--
作者：
Peter L;Tella-Amo M;Shakir DI;Attilakos G;Wimalasundera R;Deprest J;Ourselin S;Vercauteren T
双胞胎输血综合征的标准临床治疗包括对位于胎盘上的不需要的吻合口进行光凝，这些吻合口负责两个双胞胎之间的血液转移。虽然胎盘镜检查是护理程序的标准，但胎盘的视野有限，导致错过吻合术。为了方便临床医生的工作，非常需要建立一张胎盘的全球地图，以提供血管网络的更大概览。为了克服体内序列固有的具有挑战性的视觉条件(低对比度、障碍物或伪影的存在等)，我们提出了以下贡献：(1)健壮的成对配准通过对齐图像梯度的方向来实现，以及(2)关于长期一致性的困难(例如，由于离群值的存在)通过词袋策略来解决，该策略识别要配准的序列的重叠帧，而不管它们在时间上的各自位置。除了视觉上的困难，体内序列的特点是固有的缺乏黄金标准。我们呈现了马赛克，定性地激励了我们的方法选择，并展示了它们有希望的方面。我们还通过对注册结果的目视检查，半定量地展示了与两个标准基线相比，我们的注册方法的有效性。本文提出了在活体胎儿检查序列中构建胎盘马赛克的第一种方法。提出了对配准过程中视觉挑战的稳健性和远程时间一致性，在标准镶嵌技术不适用的活体数据上提供了第一个积极的结果。本文的在线版本(10.1007/s11548-0181728-4)包含补充材料，授权用户可以使用。
The standard clinical treatment of Twin-to-Twin transfusion syndrome consists in the photo-coagulation of undesired anastomoses located on the placenta which are responsible to a blood transfer between the two twins. While being the standard of care procedure, fetoscopy suffers from a limited field-of-view of the placenta resulting in missed anastomoses. To facilitate the task of the clinician, building a global map of the placenta providing a larger overview of the vascular network is highly desired. To overcome the challenging visual conditions inherent to in vivo sequences (low contrast, obstructions or presence of artifacts, among others), we propose the following contributions: (1) robust pairwise registration is achieved by aligning the orientation of the image gradients, and (2) difficulties regarding long-range consistency (e.g. due to the presence of outliers) is tackled via a bag-of-word strategy, which identifies overlapping frames of the sequence to be registered regardless of their respective location in time. In addition to visual difficulties, in vivo sequences are characterised by the intrinsic absence of gold standard. We present mosaics motivating qualitatively our methodological choices and demonstrating their promising aspect. We also demonstrate semi-quantitatively, via visual inspection of registration results, the efficacy of our registration approach in comparison with two standard baselines. This paper proposes the first approach for the construction of mosaics of placenta in in vivo fetoscopy sequences. Robustness to visual challenges during registration and long-range temporal consistency are proposed, offering first positive results on in vivo data for which standard mosaicking techniques are not applicable. The online version of this article (10.1007/s11548-018-1728-4) contains supplementary material, which is available to authorized users.
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影响因子：
10.6
作者：
Datteri RD;Liu Y;D'Haese PF;Dawant BM
通讯作者：
Dawant BM
DOI：
10.1023/b:visi.0000011205.11775.fd
发表时间：
2004-02-01
影响因子：
19.5
作者：
Baker, S;Matthews, I
通讯作者：
Matthews, I
DOI：
10.1007/s11548-017-1555-z
发表时间：
2017-06-01
影响因子：
3
作者：
Prokopetc, Kristina;Bartoli, Adrien
通讯作者：
Bartoli, Adrien
影响因子：
6.2
作者：
BURT, PJ;ADELSON, EH
通讯作者：
ADELSON, EH
DOI：
10.1109/tpami.2014.2301163
发表时间：
2014-08-01
影响因子：
23.6
作者：
Simonyan, Karen;Vedaldi, Andrea;Zisserman, Andrew
通讯作者：
Zisserman, Andrew