The briefest of glances: the time course of natural scene understanding.
The briefest of glances: the time course of natural scene understanding.
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DOI：
10.1111/j.1467-9280.2009.02316.x
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发表时间：
2009-04
影响因子：
8.2
通讯作者：
Oliva A
中科院分区：
文献类型：
--
作者：
Greene MR;Oliva A
从对一个新奇场景的短暂一瞥中可以获得什么信息？虽然以前的努力来回答这个问题集中在场景分类或对象检测，现实世界的场景包含了丰富的信息，其感知的可用性还有待探讨。我们比较了几个任务中的图像曝光阈值，涉及基本级别分类或全局属性分类。所有阈值都非常短：观察员实现了75%的正确性能与演示范围从19到67毫秒，达到最大性能在约100毫秒。全局属性分类进行了显着更少的演示时间比基本级别的分类，这表明，有一个时间在早期的视觉处理时，一个场景可以被分类为，例如，一个大的空间或可航行的，但还不是一个山或湖。比较视觉信息的相对可用性揭示了意义积累的瓶颈。理解这些瓶颈为快速视觉理解的计算提供了重要的见解。
What information is available from a brief glance at a novel scene? Although previous efforts to answer this question have focused on scene categorization or object detection, real-world scenes contain a wealth of information whose perceptual availability has yet to be explored. We compared image exposure thresholds in several tasks involving basic-level categorization or global-property classification. All thresholds were remarkably short: Observers achieved 75%-correct performance with presentations ranging from 19 to 67 ms, reaching maximum performance at about 100 ms. Global-property categorization was performed with significantly less presentation time than basic-level categorization, which suggests that there exists a time during early visual processing when a scene may be classified as, for example, a large space or navigable, but not yet as a mountain or lake. Comparing the relative availability of visual information reveals bottlenecks in the accumulation of meaning. Understanding these bottlenecks provides critical insight into the computations underlying rapid visual understanding.
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影响因子：
19.5
作者：
Oliva, A;Torralba, A
通讯作者：
Torralba, A
影响因子：
56.9
作者：
POTTER, MC
通讯作者：
POTTER, MC
影响因子：
--
作者：
Pelli, DG
通讯作者：
Pelli, DG
DOI：
10.1037/0096-1523.7.3.604
发表时间：
1981-01-01
影响因子：
2.1
作者：
INTRAUB, H
通讯作者：
INTRAUB, H
影响因子：
2.6
作者：
Greene MR;Oliva A
通讯作者：
Oliva A