A summary statistic representation in peripheral vision explains visual search.
A summary statistic representation in peripheral vision explains visual search.
复制标题
DOI：
10.1167/12.4.14
复制
发表时间：
2012-04-20
影响因子：
1.8
通讯作者：
Ilie L
中科院分区：
文献类型：
--
作者：
Rosenholtz R;Huang J;Raj A;Balas BJ;Ilie L
视觉是一个积极的过程：我们反复移动眼睛，寻找感兴趣的物体，探索我们的环境。视觉搜索实验通过让实验对象在干扰物的背景下寻找目标，捕捉到这个过程的各个方面。搜索速度通常与目标-干扰物的可分辨性有关；当目标和干扰物看起来完全不同时，搜索速度会更快。然而，也有明显的例外。给定的可分辨性可以产生有效的搜索（目标似乎“弹出”），也可以产生低效的搜索（额外的干扰使搜索明显变慢和更困难）。当寻找目标需要区分特定的配置或特征的结合时，搜索通常会更加困难。搜索不对称现象比比皆是。这些令人困惑的结果推动了三十年的理论和实验研究。我们认为搜索中的关键问题是处理外围的图像补丁，其中视觉表示的特征是在一个相当大的池化区域上计算的汇总统计。通过量化这些统计数据，我们预测了一组经典搜索结果，以及拥挤补丁（如搜索显示中发现的补丁）的外围可判别性。
Vision is an active process: we repeatedly move our eyes to seek out objects of interest and explore our environment. Visual search experiments capture aspects of this process, by having subjects look for a target within a background of distractors. Search speed often correlates with target-distractor discriminability; search is faster when the target and distractors look quite different. However, there are notable exceptions. A given discriminability can yield efficient searches (where the target seems to “pop-out”) as well as inefficient ones (where additional distractors make search significantly slower and more difficult). Search is often more difficult when finding the target requires distinguishing a particular configuration or conjunction of features. Search asymmetries abound. These puzzling results have fueled three decades of theoretical and experimental studies. We argue that the key issue in search is the processing of image patches in the periphery, where visual representation is characterized by summary statistics computed over a sizable pooling region. By quantifying these statistics, we predict a set of classic search results, as well as peripheral discriminability of crowded patches such as those found in search displays.
登录
查看更多内容
对象识别的不拥挤的窗口。
影响因子：
25
作者：
Pelli, Denis G.;Tillman, Katharine A.
通讯作者：
Tillman, Katharine A.
影响因子：
1.8
作者：
Balas B;Nakano L;Rosenholtz R
通讯作者：
Rosenholtz R
DOI：
10.3758/bf03208380
发表时间：
1995-11-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
CARRASCO, M;EVERT, DL;KATZ, SM
通讯作者：
KATZ, SM
影响因子：
1.8
作者：
Geisler, Wilson S.;Perry, Jeffrey S.;Najemnik, Jiri
通讯作者：
Najemnik, Jiri
影响因子：
1.8
作者：
Balas, BJ
通讯作者：
Balas, BJ