Automatic scene interpretation of aerial images is a major purpose of photogrammetry. Therefore, we want to improve building detection by exploring the "life-time" of stable and relevant image features in scale space. We use watersheds for feature extraction to gain a topologically consistent map. We will show that characteristic features for building detection can be found in all considered sc...

In this paper, we proposed an automatic procedure to reconstruct building outline using building data and stereo aerial images. Our methods focused on the outline of building, excluding the inner structure of roof surface. This procedure includes five steps, 1) to produce the edge gradient images by Canny Detector, 2) to defined the valid workspace in object space and image space by building da...

The IGEAN (Innovative Geophysical Approaches for the study of Early Agricultural villages of Neolithic) Thessaly project focused on Early and Neolithic settlements in Thessaly, Central Greece. The aim of the project was to highlight in an extensive way differences in settlement layouts while investigating commonalities as a way to understand Neolithic use of space. To accomplish this, a suite o...

PURPOSE To compare nonmydriatic stereoscopic Optomap ultrawide field images with dilated stereoscopic Early Treatment Diabetic Retinopathy Study 7-standard field 35-mm color 30-degree fundus photographs (ETDRS photography) and clinical examination for determining diabetic retinopathy (DR) and diabetic macular edema (DME) severity. DESIGN Single-site, prospective, comparative, instrument valid...

painting, which plays with color and form. It appears that criticism has learned very little in a century. Although we can accept, understand, and excuse the mother who disgustedly remarks that she has a 6-year-old daughter who can paint better than "that," it is depressing to find an intelligent, educated critic asking "what an abstract photograph is of" and arguing that "in photography the su...

This paper focuses on the possibility of (re)designing architecture virtually with the help of one of the most important representation tools: Photography. Various digital processes like stitching multiple photos together and mirroring images in image editing software like Photoshop, allow this virtual architecture to take place in virtual environments. Photography can be util ized in the proce...

A brief history of digital photography is provided along with a critical appraisal of the 'prosumer' and professional systems currently available. Recommendations are made as to the system best suited to current orthodontic practice.

WHAT I have to do this morninig has been described by many as an honour and a pleasure. For me too it is both, and may I say that the honour of being chosen as your orator today is not in any way lessened by the fact that, with the passage of time, alarmingly rapid in the past few years, my turn on the rota of orators has inexorably come round. Nor is the pleasure dinminished by the sense of nm...

We introduce a technique for improving photographs using inverse lighting, a new process based on algorithms developed in computer graphics for computing the reflection of light in 3D space. From a photograph and a 3D surface model for the object pictured, inverse lighting estimates the directional distribution of the incident light. We then use this information to process the photograph digita...

I detail a method for producing high quality Fourier transform holograms using a computer, laser printer, and overhead transparency film. The method should be useful for lecture demonstration and holography laboratories. Given an arbitrary holographic phase/amplitude plate, computer-generated holography attempts to find a suitable binary encoding of the (complex) transmission function of the ho...