Microsoft has developed a product PhotoSynth that can process a large number of photos in 3D, but instead of actually creating 3D models, it constructs a virtual 3D scene based on the camera parameters and spatial correspondence between photos, enabling users to view the scene from different angles and positions, and the displayed scene image is synthesized from a given photo. Just a few days ago, on February 6, 2017, Microsoft announced the closure of the PhotoSynth service.
Reconstructing 3D objects from multiple photos taken from different angles is technically feasible, but due to some steps of the algorithm, such as detection and matching of object feature points in the image, estimation of camera parameters, etc. some errors may also happen.
Using images of real specimens, the 3D models comprising approximately 20 individual bones from a canine skeleton are fully rotatable in 360 degrees from any angle and are complete with zoom functions.
Creative Dimension Software Ltd (CDSL) were asked to construct the3D models from photos using their 3DSOM Pro technology (see www.3dsom.com). The photographs weretaken onsite by the Bristol Anatomy team and then processedby CDSL to create 3D models and the final 3D presentation (complete with hotspots, links and overlays).
Comparing different conditions for the data collection revealed that an LED ring flash device was superior to a normal flash for avoiding shadows. This, in turn, reduced errors in the meshes. Completely closing the aperture of the camera helped to increase focus depth. A digital DSLR camera yielded better results in comparison to a mobile phone camera or a compact digital camera. DSLR cameras save image EXIF data (exposure time, focal ratio, focal distance, ISO, measurement mode, etc.), which can be read by various photogrammetric software and thus improves mesh calculation. Most photogrammetric software already have data about different cameras and objectives included. Many compact digital cameras do not save EXIF data with the photo file or estimate values by algorithms (e.g., iPhone).
Texture-mapping to give models a photorealistic appearance has been done mostly with 3DSOM Pro. In this procedure, 2D images of a specimen are extracted from their background and then projected onto the surface of the model, aligning them to topographic features of the model. Multiple images from different positions around the form blend to approximate the local color and texture of the original specimen. Onscreen exploration of these texture-mapped models offers a close approximation to the experience of handling the original specimens yourself.
Making a 3D model from multiple 2D images is an interesting way to create a unique and dynamic representation of an object or scene. With the right software, 3D modeling from 2D images is a surprisingly simple and rewarding process. By converting multiple 2D images into a 3D model, it is possible to create a photorealistic representation with greater detail and complexity than could be achieved with a single image. This article will provide step-by-step instructions on how to use specialized software to make a 3D model from multiple 2D images. In addition, it will describe the advantages and challenges of 3D modeling from 2D images, as well as offer insight into the creative potential of this method.
The length and width of 2D images are the only two aspects of each. In the future, no software that can process a single 2D image (for example, a family photo) and generate a 3D model can be developed. However, a process known as photogrammetry can be used to make a 3D model from a series of 2D images.
Although 3D models are typically 3D-printed in STL format, this format is more of a relic than a future. Graphic designers use Vector image files to create 3D files from flat images. When the 2D image is extruded, it generates the most accurate 3D model possible by saving information about the lines and areas of the area. This process is demonstrated using Inkscape and Blender.
A converted 3D image is a two-dimensional image that has been digitally converted into a three-dimensional representation. This process allows for the creation of depth, texture, and other visual effects that can not be achieved with a flat, two-dimensional image. Converted 3D images can be used to create realistic images of objects, people, and environments in virtual reality, computer-generated movies, and video games. This technology has revolutionized the way we experience and interact with 3D graphics, providing an immersive and realistic experience. 153554b96e