Important Tips To Improve Photogrammetry Scanning Quality

Photogrammetry can simply be defined as the measurement of photographs. It is a process that largely depends on camera positioning around the given subject and light control to create high resolution details of skin and clothing. The scanning can be used for capturing data for various projects including face replacements and CG characters. With so many variables to control, photogrammetry scanning can be overwhelming. There is just too much trial and errors involved to achieve best practices but with a few helpful tips, it is very possible to achieve accuracy and top quality with the process.

Tip 1 – Think about overlapping coverage. When building your setup, you should use as many cameras as possible so you are able to reduce or minimize manual cleanup later. Enough coverage translates into very decent recreation and you will also rarely miss any information when you use enough cameras so manual cleanup is very minimal.

Tip 2 – Put in measures to minimize distortions. When there are distortions, it is given that your system will have issues aligning the images. The fact is that most Photogrammetry systems come with a lens that helps reduce images, but it is always a much better choice to try and minimize it in-camera. Use tools that match with the camera format that you are using to get the best results every time.

Tip 3 – Mask out the background to dramatically improve overall quality of generated mesh and post processing time. It is a process that can be time consuming, especially when you need to go through every single picture but it pays off in the end. If manual masking is something you would rather avoid, then you can use systems that offer automatic masking feature to achieve a clean background. It also helps to tie cables together and eliminating any junk from the frame, especially when using a camera rig.

Tip 4 – Focus on more resolution when operating. You can use as much as necessary from your sensor because the more the resolution you can achieve then the more detailed your mesh is going to be. Try every way not to waste a single pixel if you can actually use it for quality benefits.

Tip 5 – Remember that lighting remains key in all kinds of photography. To increase depth of filed and eliminate photo noise, keep your aperture small and ISO as low as you can. But because doing so will definitely decrease amount of light that you get to work with, ensure that you have other light sources to substitute. Consider using flashes over continuous lighting that are less efficient, less color accurate and expensive for that matter. Flashes keep talent comfortable and enough lit unlike continuous lights that can produce heat leaving enclosed rig hot.

Tip 6 – Pay attention to photo orientation. It is factor that plays a huge role in accuracy of projects and it needs to be accurate for every camera position. Increase number of well-positioned points to improve orientation quality. These points should take up a greater percentage of photograph area.

Photogrammetry is among the services that you can enjoy from 3D scanning experts. Choose a service provider you can trust to deliver quality to your photo project, however demanding it could be.

Article Source: http://EzineArticles.com/9564478

6 Top Areas of 3D Scanning Benefits

3D scanning process has proved to be very beneficial in capturing the exact measurements and shape of any given object. It is a technology that has eased production processes in all fields and more people are now embracing the benefits of this sought of scanning where total accuracy of details on an object is needed. It is a process that has actually reduced manufacturing costs and yet offers higher quality parts in the end. Below are some of the top areas the 3D scanning benefits.

1. Prototype

This process can be applied to prototype phase in different kinds of ways, but the major use is to reduce design cycles needed in the prototyping. When 3D scans are used in designing a part, the accurate data makes it possible to utilize precise measurements of the physical product reducing the process by a huge percentage. The scanning is also combined with prototyping so that physical objects are scaled accurately.

2. Design

It is among the areas that have greatly benefited from 3D scanning. They scans are applied starting with physical object and then using this to create a CAD model. Mating parts are also scanned and then incorporated into a given design so the end result is better fitting parts that are consistent. This process is known as reverse engineering or modeling and when utilized, new designs are improved and incorporated for engineering optimization of manufactured part.

3. Production

In production, the scanning is used to capture tooling or parts changes which occur in the production phase. Usually hand tuning is needed in tooling to get the desired finish and look of a given part. When 3D comes into the picture, the optimizations and hand modifications are easy to transfer from tool to tool so all parts manufactured match after the production ends. The scans also help in analyzing and characterizing tool wear during the production; this is very helpful in correcting tool failure or eliminating the same before it is too late. It is actually very possible to recreate optimized part using a 3D scan.

4. Engineering

3D scan data makes it possible for physical objects to be translated into the engineering phase of projects directly. The data offer flexibility in performing FEA, CAE, CFD and other analysis that is necessary in the engineering area on objects manufactured and physically modified. The process offers a simple way of achieving accuracy.

5. Quality control

Using 3D scanning, it has become possible to analyze built condition of parts after manufacturing. This non-contact technology offers a quick way of inspecting overalls size and shape of the parts and detecting issues that could affect performance of the parts. When combined with statistical analysis software, 3D scanning helps maintain and predict the quality of parts in the manufacturing phase.

6. Distribution

It might sound unrealistic, but 3D scanning comes handy in vision systems used in distribution and shipping centers to sort and track packages. The scanning certifies the integrity of products before and after shipping. It is also used to increase packing density and creating support structures and casing.

Lidar scanning systems are some of the systems used in 3D scans to create offer precise digital copies of props, cars, aircraft and even buildings. There is just so much that can be enjoyed using the systems.

Article Source: http://EzineArticles.com/9564472

3D Scanning – What You Need To Know

3D scanning is a process of capturing digital information of object shape using equipment that has light or laser to measure distance between the object and the scanner. The non-destructive and non-contact scanning technology uses lines of laser light capturing the exact shape and size of the object. The fine details of even the smallest objects are captured and the process comes in handy in so many industries and fields. Some the areas that 3D scans are commonly used include automotive, manufacturing, medical and aerospace.

3D laser scanners capture thousands of points per second, allowing quick inspection of parts. It is a process that is ideally suited for measuring and inspecting contoured surfaces and also complex geometries that require lots of data for accurate description and where traditional measurement methods are impractical.

What are the advantages?

3D scanning has become very popular among business people in different fields. You can now easily find 3D scanning services for all needs you might have especially as far as accuracy and high quality productions are concerned. The popularity of the process is as a result of the many advantages it has over other traditional options. Some of the advantages that come with the process include:

1. Quick capture of all physical measurements of any given physical object; with 3D scanning, the size of the object does not matter.

2. Saves time when designing. The high definition details of objects make it possible for designers get it right with the first trail, hence saving time, even with productions that would have otherwise proved to be complex and time consuming.

3. Ensures perfect fit of parts with the first try. 3D has literally taken the guess work of production processes, especially for those dealing with prototypes and creating parts. The detailed information collected from an object is accurate and hence it is very rare to have parts that have any functional defects.

4. It captures engineering optimization that is necessary in manufactured parts. The process offers more confident to manufacturers in terms of meeting standards and any set objectives in the manufacturing process of parts. Using the scans, it has become even possible for manufacturers and designed to compare between designed and built models conditions so manufactured parts are top quality.

How does it help the design process?

3D scans are largely used in the design process of various products. Model scanning proves beneficial in the design process because:

· It increases effectiveness when working with shapes and parts that are complex

· It provides updated versions of CAD models that are outdated

· It makes it possible to replace missing parts or older parts

· It helps product designing so that someone else’s part can be accommodated

Which areas can in be used in?

3D scanning is very effective and has become a popular option in various fields including:

· Historical artifacts

· Prototyping or reverse engineering

· Entertainment industry for games, TV and movie productions

· Medical and dental

· Inspection

· Marine

· Construction and architecture

A 3D scan can prove highly beneficial in different sectors. If you do not have what it takes to enjoy the accuracy of 3D scans, you can get help from service providers who offer all kinds of scanning services.

Article Source: http://EzineArticles.com/9564469

How to Keep Disk Space Free on Your Windows System

Windows computer systems are impressive machines when it comes to disposing day to day work but the fly in the ointment turns up to be the situation when your system run out of disk space memory. This disk space shortage can happen due to various reasons which include cluttered and unorganized data on your system. Your disk space can cause many troubles to your system when it is over occupied. You can follow certain steps to deal with this situation. Let’s discuss a few steps to keep your system’s disk space free from cluttered and unorganized data.

Use a Disk Cleanup tool: This is an effective tool to clean your hard drive effortlessly. Use this tool to free up enough space on your system to make it run smoother. To do so:

· Open the Start button and Run “Disk Cleanup” and select it from the list.

· When prompted select the drive you want to clean and press OK.

· Select the check boxes to pick the file types you want to delete and press OK.

· Select Previous Windows Installation(s) check box to remove data from any previous installation of Windows.

· Now go back to the Computer in File Explorer and select the drive which you have cleaned and Refresh.

Uninstall desktop programs you don’t use: Use this feature to uninstall all those apps and programs you no longer need or use. To uninstall desktop apps, go to Start > Control Panel > Programs > Programs and Features > Uninstall a Program. When prompted select the programs or apps you don’t want any more.

Certain programs include an option to change or repair the program itself in addition to uninstalling it. To change a program, click Change or Repair option.

Archive or delete unnecessary files: Your system stores lot of unnecessary and unused files and programs which get piled up over time. This accumulated data includes temporary files, old data files, unused files and programs, duplicate files and lot other unnecessary data. This data not only occupies precious disk space but it affects system speed and performance. Try to delete unnecessary data from your system or take backup on external drives.

Backup data on the Cloud: Cloud services offer a wide range of options to take backup of your important data on Cloud servers. This way you can store your important data on these servers and can access and restore it anytime anywhere. Using this option, you can spare some disk space for other important data.

Add more storage: This comes as a longer-term solution for your disk space worries. Try to expand your system’s disk storage capacity by using removable drives like SD Cards, USB, DVDs, CDs etc. or try SSD or larger hard disks. Hence it can prove bit costlier to apply.

Following these simple steps, you can find a solution for a lot of your disk space worries. This way you can not only recover a lot of disk space but it will improve your system speed and performance.

There are certain ways available to free up disk space on your Windows system. One effective way is to use duplicate file finder tools to recover precious storage space.

Article Source: http://EzineArticles.com/9565072