No measured effect of a familiar contextual object on color constancy
would uniquely determine the object's color appearance. In fact, the spectrum of light ... subjects controlled the hue and chroma of the test patch using a joystick ...
[ Kanematsu_Brainard_13.pdf - Read/Download File
The effect of memory and context changes on color matches to real
require matching the color of objects between contexts and ... Fig. 1). Maintaining stability of color appearance across ... long-term memory affect the representation (both bias and .... est to the observer, while the cube was in its experimental location. ... nated. On each trial, one cube in each booth was embedded in a 3D.
[ AllredOlkkonenAPP2015.pdf - Read/Download File
The color constancy of three-dimensional objects - Investigative
Apr 16, 2012 ... To first order, constancy was similar for the three test object types. ... color appearance of diffusely illuminated flat matte surfaces ... study the effect of three- dimensional surface pose on .... The rest of the scene provided the context in which the .... the background central patch for each condition are provided.
[ jov-12-4-6.pdf - Read/Download File
Effects of spatial and temporal context on color categories and color
Mar 8, 2007 ... Color constancy is the ability to assign a constant color to an object ... When small central test patches with a full context illumination were ..... 3D color space at equal perceptual intervals. ... categories measured in our study and the location of the ..... Prediction of color appearance with different adapta-.
[ Hansen-2007-jov-7-4-2.pdf - Read/Download File
Surface color perception and equivalent illumination models
May 1, 2011 ... Under many circumstances, however, object color appearance is remarkably stable across ..... this form account for the effect of changing scene context .... chromaticity of a test patch (location is indicated by black rectangle) to appear achromatic. ..... and venture into the full complexity of 3D scenes, the.
[ BrainardMaloney.JoV.2011.pdf - Read/Download File
3D Object Representations for Fine-Grained Categorization - EECS
While 3D object representations are being revived in the context of multi-view object class detection and scene un- derstanding ... w.r.t. both the appearance and location of local features. ... resentation for estimating 3D geometry from test images in .... tive effect on performance. ..... the remaining variation (such as color ).
[ KrauseStarkDengFei-Fei_3DRR13.pdf - Read/Download File
Color constancy - ScienceDirect.com
Color constancy;; Color appearance;; Chromatic adaptation;; Von Kries coefficient; ... In its modern formulation, color constancy is usually taken as the effect ... Isolated lights with these two spectra appear very different, but, in context , the ...... Performance was no poorer when the surfaces surrounding the test patch were ...
[ 1-s2.0-S0042698910004402-main.pdf?_tid=0cf0ca58-1d23-11e4-8806-00000aab0f26&acdnat=1407299890_e54c66eb33c6c748be687138cfda7f3a - Read/Download File
An Empirical Study of Context in Object Detection
context in a contemporary, challenging object detection task ... notion that image pixels/patches around the region of inter- est carry useful ... coarse 3D geometric structure of a scene, or the “surface ... may indicate the presence and location ( spatial context) of ..... gives us thirteen features (class appearance: color, texture,.
[ contextInDetectn_cvpr09.pdf - Read/Download File
3D Object Modeling and Recognition Using Local Affine-Invariant
et al., 1997) and 3D object recognition (Murase and Nayar, 1995; Selinger ... and of the brightness/color signal (Lowe, 2004) to capture the appearance of salient surface patches, and a set of multi-view geometric constraints related to ... scale selection, where a “blob” is defined by a scale-space location where a normal-.
[ ijcv04d.pdf - Read/Download File
Learning Hough Forest with Depth-Encoded Context for Object
tive physical scales of image patches, 3D offset uncertainty of votes, and ... During test, each patch at location y is ... late the learned appearance codebook with the depth infor- .... effect. During test, we store votes from object patches DL and context patches DL .... on 32 feature channels (3 Lab color channels, 4 absolute.
[ 6264 - Read/Download File
Geometric Context from a Single Image - Carnegie Mellon School of
properties of a scene by learning appearance-based mod- ... In effect, our entire visual panorama acts as a global recognition ... over all locations and scales). ... the image plane and not in the 3D world where these objects ... A patch in the image could theoretically be generated by a ..... bel, averaged over the test images.
[ hoiem-iccv-05.pdf - Read/Download File
Color constancy and hue scaling - IMBS | UCI Social Sciences
Sep 27, 2006 ... Hue scaling settings were made for test patches under five different ... phenomenon of stable color appearance of surfaces with ... measure only the location of the observer's neutral point, ... metric matching but in the context of hue scaling. Spe ... 3D scenes that consisted of simple objects (such as columns.
[ Schultz-Doerschner-Maloney_ColorConstancyHueScaling.pdf - Read/Download File
Shape matching and object recognition using shape contexts
The shape context at a reference point captures the distribution of the ... from the shape contours (typically 100 or so pixel locations ... 3D objects in the COIL-20 data set, one can obtain as low as .... methods in the appearance-based shape matching frame- work. ... patches centered at pi and qj, distances between vectors of.
[ belongie-pami02.pdf - Read/Download File
Dissociation of color and figure–ground effects in the watercolor
by the watercolor pattern was stronger than expected from the color effect, suggesting ... of border ownership assignment, one that is sensitive to asymmetric shape of ... The appearance of the illusory color tint suggests a filling- in process: ... We performed four experiments to test the relationship between color illusion and.
[ vonderHeydt2006.pdf - Read/Download File
A Perceptual Evaluation of 3D Unsharp Masking - Max Planck
current study, we investigated the perceptual impact of an algorithm recently proposed ... a standardized perceptual experiment to test the proposition that a 3D unsharp ... greatly improve the overall image appearance.2 In the context of 3D computer ... towards developing algorithms working directly in the 3D object space ...
[ 3DUnsharpMaskingStudy.pdf - Read/Download File
Fast Keypoint Recognition using Random Ferns - EPFL
Achieving both is difficult because surface appearance around a keypoint can ... that this is particularly effective for applications such as real-time 3D object ... keypoint location, to improve the recognition rate. ..... applying a sequence of tests to the patch, which is what Ferns do. ... features are still appropriate in this context.
[ ozuysal_pami10.pdf - Read/Download File
Selective visual attention enables learning and recognition of
Jun 15, 2005 ... recognition of multiple objects in cluttered scenes. Dirk Walther a,*,1 .... for object- based and location-based visual attention using ''groupings.
[ Walther_etal05cviu.pdf - Read/Download File
Novel Views of Objects from a Single Image - arXiv.org
Jan 31, 2016 ... specific 3D shapes, symmetries, materials, colors, etc. Several of ... alignment between the 2D appearance and the 3D shape of the object, and we ... viewpoints with complex material and illumination effects from a ... context- dependent Lit Spheres. ... This allows to put pixel locations from the original to the.
[ rematasNVarXiv2016.pdf - Read/Download File
Context-Aware Textures - Yale Graphics Group - Yale University
effects, such as paint cracking; and biological effects, such as the growth of mold on a surface. ... Descriptors: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Color, ... and aging of materials, 3D shape and appearance capture, and texture ..... Lefebvre and Hoppe 2005], or as patch- based [Soler et al.
[ p1-lu.pdf - Read/Download File
Edge-Aware Color Appearance - Jan Kautz
Perceptual color appearance in the spatial context has been in- tensively ... tested chromatic induction from narrow, patterned, ring-shape sur- rounds, and found ... a pilot experiment to examine the appearance impact of the size of the solid part. ... 2: Edge smoothness variation of the test color patch. ... 3d), and the patch ...
[ EdgeAwareColorTOG11_authorcopy.pdf - Read/Download File