Probabilistic, ultra-sparse, structural representations of natural scene categories
نویسندگان
چکیده
منابع مشابه
Learning natural scene categories by selective multi-scale feature extraction
0262-8856/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.imavis.2009.11.007 * Corresponding author. Tel.: +39 045 8027803; fax E-mail addresses: [email protected] (A. Pe (M. Cristani), [email protected] (V. Murino). 1 Tel.: +39 045 8027988. 2 Tel.: +39 045 8027996. Natural scene categorization from images represents a very useful task for automatic image analysis systems....
متن کاملTraffic Scene Analysis using Hierarchical Sparse Topical Coding
Analyzing motion patterns in traffic videos can be exploited directly to generate high-level descriptions of the video contents. Such descriptions may further be employed in different traffic applications such as traffic phase detection and abnormal event detection. One of the most recent and successful unsupervised methods for complex traffic scene analysis is based on topic models. In this pa...
متن کاملNatural Scene Statistics Account for the Representation of Scene Categories in Human Visual Cortex
During natural vision, humans categorize the scenes they encounter: an office, the beach, and so on. These categories are informed by knowledge of the way that objects co-occur in natural scenes. How does the human brain aggregate information about objects to represent scene categories? To explore this issue, we used statistical learning methods to learn categories that objectively capture the ...
متن کاملPredicting judged similarity of natural categories from their neural representations.
We report a combined behavioral and functional magnetic resonance imaging (fMRI) study of conceptual similarity among members of a natural category (mammals). The study examined the relationship between computed pairwise similarity of neural responses to viewed mammals (e.g. bear, camel, dolphin) and subjective pairwise similarity ratings of the same set of mammals, obtained from subjects after...
متن کاملDecoding individual natural scene representations during perception and imagery
We used a multi-voxel classification analysis of functional magnetic resonance imaging (fMRI) data to determine to what extent item-specific information about complex natural scenes is represented in several category-selective areas of human extrastriate visual cortex during visual perception and visual mental imagery. Participants in the scanner either viewed or were instructed to visualize pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Vision
سال: 2012
ISSN: 1534-7362
DOI: 10.1167/12.9.803