White‐light images from Heliospheric Imager‐1 (HI1) onboard the Solar Terrestrial Relations Observatory (STEREO) provide two‐dimensional (2‐D) global views of solar wind transients traveling in the inner heliosphere from two perspectives. How to retrieve the hidden three‐dimensional (3‐D) features of the transients from these 2‐D images is intriguing but challenging. In our previous work (Li et al., 2018, https://doi.org/10.1029/2018JA025485), a “correlation‐aided” method is developed to recognize the solar wind transients propagating along the Sun‐Earth line based on simultaneous HI1 images from two STEREO spacecraft. Here the method is extended from the Sun‐Earth line to the whole 3‐D space to reconstruct the solar wind transients in the common field of view of STEREO HI1 cameras. We demonstrate the capability of the method by showing the 3‐D shapes and propagation directions of a coronal mass ejection (CME) and three small‐scale blobs during 3–4 April 2010. Comparing with some forward modeling methods, we found our method reliable in terms of the position, angular width, and propagation direction. Based on our 3‐D reconstruction result, an angular distorted, nearly north‐south oriented CME on 3 April 2010 is revealed, manifesting the complexity of a CME's 3‐D structure.

中文翻译：

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从白光中的立体观察重建太阳风的不均匀结构：3D中的太阳风瞬变

太阳陆地关系天文台（STEREO）上的Heliospheric Imager-1（HI1）发出的白光图像从两个角度提供了在内部太阳圈中传播的太阳风瞬变的二维（二维）全局视图。如何从这些二维图像中检索瞬态的隐藏的三维（3D）特征很有趣，但也很有挑战性。在我们之前的工作中（Li等人，2018，https://doi.org/10.1029/2018JA025485），开发了一种“相关辅助”方法来识别基于同步的沿太阳-地球线传播的太阳风瞬变来自两个STEREO航天器的HI1图像。在这里，该方法从太阳地球线扩展到整个3D空间，以重建STEREO HI1摄像机共同视场中的太阳风瞬变。我们通过显示2010年4月3日至4日的日冕物质抛射（CME）和三个小规模斑点的3D形状和传播方向来证明该方法的能力。与某些正向建模方法相比，我们发现我们的方法可靠在位置，角度宽度和传播方向方面。根据我们的3D重建结果，于2010年4月3日揭示了一个角度扭曲，近北偏南的CME，表明了CME 3D结构的复杂性。