Efficient large scale acquisition of building interiors

Bahmutov, Gleb; Popescu, Voicu; Mudure, Mihai

doi:10.1145/1179849.1180008

Cited by 5 publications

(1 citation statement)

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“…The disadvantage of this system is that it requires physical contact with the subject and specific and synchronized hardware. In the same context but applied over large scenes, Bahmutov et al (8) describe an efficient and interactive system for modeling large-scale interior scenes. The system is based on the structured light technique following a custom approach of projecting a matrix of 11 · 11 laser spots in the field of view of a digital camera.…”

Section: Approaches Based On Active Sensors Terrestrial Laser Scannermentioning

confidence: 99%

Forensic Terrestrial Photogrammetry from a Single Image

Aguilera

Gómez-Lahoz

2009

Journal of Forensic Sciences

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Forensic terrestrial photogrammetry is one of the most valuable and low-cost resources of spatial data available today. Due to the ephemeral crime scene characteristics, these photographs can often capture information that is never to be seen again. This paper presents a novelty approach for the documentation, analysis, and visualization of crime scenes for which only a single perspective image is available. The photogrammetric process consists of a few well-known steps in close-range photogrammetry: features extraction, vanishing points computation, camera self-calibration, 3D metric reconstruction, dimensional analysis, and interactive visualization. Likewise, the method incorporates a quality control of the different steps accomplished sequentially. As a result, several cases of study are presented in the experimental results section in order to test their viability. The full approach can be applied easily through the free software, sv3DVision, which has been evaluated by a number of police officers, forensic scientists, and forensic educators satisfactorily.

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Section: Approaches Based On Active Sensors Terrestrial Laser Scannermentioning

confidence: 99%

Forensic Terrestrial Photogrammetry from a Single Image

Aguilera

Gómez-Lahoz

2009

Journal of Forensic Sciences

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1001 Acquisition viewpoints: efficient and versatile view-dependent modeling of real-world scenes

Mudure

Popescu

2008

Visual Comput

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Modeling is a severe bottleneck for computer graphics applications. Manual modeling is time consuming and fails to capture the complexity of real world scenes. Automated modeling based on acquiring color and depth data is a promising alternative. However, the usual approach of densely sampling the scene from a few viewpoints suffers from long acquisition times, high data redundancy, and lack of robustness, leading to incomplete models.We propose automated modeling based on sampling the scene sparsely from a dense set of viewpoints. We show that the sparse data quickly accumulates to generate models with good scene coverage. The sparse depth is acquired efficiently and robustly, which enables an interactive, operator-in-the-loop acquisition pipeline. We describe a modeling system that implements this approach. The system acquires scenes with complex geometry and complex reflective properties from thousands of viewpoints in minutes. The resulting models are compact and support photorealistic rendering at interactive rates.

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