As digital photogrammetric system developed, we became able to measure three-dimensional objects on a generic personal computer. And recently aerial photograph is easily obtained, for example we can get aerial photograph through internet at a low price in Japan. But three-dimensional measurement using by photogrammetry is not popular. One of this cause is that digital mapping system requires ph...

OBJECTIVES To set up a three-dimensional photogrammetric scanning system for precise landmark measurements, without any physical contact, using a low-cost and noninvasive digital photogrammetric solution, for supporting several necessity in clinical orthodontics and/or surgery diagnosis. MATERIALS AND METHODS Thirty coded targets were directly applied onto the subject's face on the soft tissu...

Humans perceive the environment through sensory inputs which the brain processes appropriately for the stimulus. This is particularly true of visual cognition and interpretation of geospatial images. The virtual scene, imagined in the brain, is inherently related to neuro-physiological features of the human visual system and differs from the real world. The brain processes visual input by conce...

Scoliosis is a deformity of the human spine most commonly encountered with children. Its early detection is vital for the patient’s treatment, so periodic examinations via X-rays are traditionally used to measure its progression. Since this can cause a significant dose of radiation leading to an increased risk of cancer, it is imperative to minimize the use of radiographs and introduce a non-in...

This paper presents a practical application of a technique that uses a vertical optical flow with a fisheye camera to generate dense point clouds from a single planimetric station. Accurate data can be extracted to enable the measurement of tree trunks or branches. The images that are collected with this technique can be oriented in photogrammetric software (using fisheye models) and used to ge...

Background. Performing skilful movement patterns during sport practice sessions and real competition can cause negative adaptations in the musculoskeletal system. Objectives. The aim of this study was to investigate the incidence of postural abnormalities of the spine and shoulder girdle among professionals practising Sanda in Mazandaran province. Methods. Forty professional Sanda athletes pa...

In order to address the difficulty of arranging large calibration objects and the low measurement accuracy of small calibration objects in traffic accident scene photogrammetry, a photogrammetric method based on a composite of small calibration objects is proposed. Several small calibration objects are placed around the traffic accident scene, and the coordinate system of the composite calibrat...

Laser scanners are becoming popular since they provide fast and dense geometric surface information. However, sudden elevation changes along the surface are not clearly visible in the laser data due to the sparse distribution of captured points. In general, laser data provides high density surface information in homogenous areas and low density surface information elsewhere (i.e., object space ...