As an object approaches the eye, its retinal image size grows larger and its surface texture appears to grow coarser. We compare these two visual correlates of motion in their effectiveness as stimuli for motion in depth. In some experiments texture and object size both expanded or both contracted: in other experiments the two stimuli were pitted against each other. When texture and size change...

The 'colour-shading effect' describes the phenomenon whereby a chromatic pattern influences perceived shape-from-shading in a luminance pattern. Specifically, the depth corrugations perceived in sinusoidal luminance gratings can be enhanced by spatially non-aligned, and suppressed by spatially aligned sinusoidal chromatic gratings. Here we examine whether colour contrast can influence perceived...

This contribution gives an overview of automatic 3D scene reconstruction and visualisation from uncalibrated and handheld camera image sequences. We address specifically the problems that are associated with calibration and visual-geometric reconstruction of complex scenes with occlusions and view-dependent surfaces. The scene is then represented by large sets of calibrated real viewpoints with...

Depth and texture play complementary roles in the coding of faces. While most existing face recognition methods are based on texture cues from intensity images due to their ease of acquisition, more accurate face recognition can be achieved by exploiting both modalities. To evaluate this claim, we have designed a pattern classifier for three different inputs: (1) depth map, (2) texture map, and...

Focusing on the problem of stereo matching accuracy not high enough in the image matching with discontinuous or weak texture, this paper is to propose a stereo matching method which takes the advantages of the local matching and global matching. Firstly, color image segmentation is applied for mean shift algorithm. Secondly, in the local matching the multi-window adaptive algorithm is used to s...

The assessment of the anti-skid properties airfield pavements is one elements in process determining their current technical condition, which important terms safety air operations. condition pavement should be qualified on basis specified and required values (criteria), this case, coefficient friction depth texture. Unfortunately, practice, texture new raises some doubts with regard to existing...

This paper presents a 3D modeling system designed for Multi-view Video plus Depth (MVD) sequences. The aim is to remove redundancy in both texture and depth information present in the MVD data. To this end, a volumetric framework is employed in order to merge the input depth maps. Hereby a variant of the Space Carving algorithm is proposed. Voxels are iteratively carved by ray-casting from each...