Ryan Anderson

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The design of role-playing games (RPGs) is very complex, involving an intricate interweaving of narrative, quest design, and level design. As an important means for conveying the game's story, quests dictate the setting and contents of levels. Levels provide challenges for the player to overcome in the service of completing quests, and their structure can(More)
We show that the Dual-Tree Complex Wavelet Transform (DTCWT) [1] is a well-suited basis to detect salient keypoints in images as it is: directionally selective, smoothly shift invariant, optimally decimated at coarse scales, invertible (no loss of information) and fast to compute. It is therefore more suitable than the Discrete Wavelet Transform for content(More)
In this paper, we introduce a new multiscale representation for 2-D images named the Inter-Coefficient Product (ICP). The ICP is a decimated pyramid of complex values based on the Dual-Tree Complex Wavelet Transform (DT-CWT). The complex phases of its coefficients correspond to the angles of dominant directional features in their support regions. As a(More)
This paper introduces the Interlevel Product (ILP) which is a transform based upon the Dual-Tree Complex Wavelet. Coefficients of the ILP have complex values whose magnitudes indicate the amplitude of multilevel features, and whose phases indicate the nature of these features (e.g. ridges vs. edges). In particular, the phases of ILP coefficients are(More)
This paper introduces a new method to recognize objects at any rotation using clusters that represent edge profiles. These clusters are calculated from the Interlevel Product (ILP) of complex wavelets whose phases represent the level of " edgi-ness " vs " ridginess " of a feature, a quantity that is invariant to basic affine transformations. These clusters(More)
We present a new approach based on Discriminant Analysis to map a high dimensional image feature space onto a subspace which has the following advantages: 1. each dimension corresponds to a semantic likelihood, 2. an efficient and simple multiclass classifier is proposed and 3. it is low dimensional. This mapping is learnt from a given set of labeled images(More)
Based upon twelve months of anthropological fieldwork in Cabo Pulmo, Baja California Sur, Mexico, this article uses political ecology and theoretical work on ideology to examine how local residents use the concept of sustainability to advocate for alternative visions of development. Conceptually, the idea of sustainability has a long, often conflicted(More)
High-resolution Magnetic Resonance Imaging (MRI) has been the primary modality for obtaining 3D cross-sectional anatomical information in animals for soft tissue, particularly brain. However, costs associated with MRI can be considerably high for large phenotypic screens for gross differences in the structure of the brain due to pathology and/or(More)