Cross-View (post 1 comment 2)

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About Cross-View (post 1 comment 2)

Welcome to Cross-View (post 1 comment 2). This is a group designed for new enthusiasts of stereo photography to learn about the technique as well as a place for old pros to show off their work and share their knowledge.

Stereo photography is nothing new, with its origins shortly following the invention of the camera. Although there are many methods for viewing 3D images, the cross-view format, at this time, is probably the best option for universally available computer screen viewing. Once the viewing technique is mastered, photographic images are no longer limited to a flat plane, but can be appreciated in full color, detail, and Depth, superior to other viewing methods. The enthusiasm for stereo photography is growing rapidly, evident by the number of posters in other 3D groups. The demand for this art form has even driven the recent release of the first commercially available digital cameras specifically designed for 3D image and video capture.

The creation of 3D cross-view images is simple in theory, but can be challenging to master. There are many resources and tutorials available on the internet, but many are diffuse and confusing. The current 3D pools on flickr are great places to display work, but generally lack feedback. The less than stellar stereograms are passed over with little notice or suggestions for improvement. This is a forum where posters will receive at least 2 comments on their work and have a chance to help improve the work of others.

The administrators and moderators of this group are open to suggestions for improvement. Please flickrmail any additions you would like to see in this forum.



Instructions for Posting

It would be nice, although not mandatory, to describe how you achieved your image. Consider including the following in your description:
1) The camera(s) used
2) The method used (twin-rig, cha-cha, slider, handheld, mirror, tripod)
3) The stereo base (if known), and possibly distance to the subject
4) The software used to align the images (ex. Stereo Photo Maker, Photoshop)
5) Any post processing software (like Photomatix for achieving HDR)
6) Any unique photographic techniques (lighting tricks, bracketed exposures, long exposures, photoshop tricks, infra red, etc.)

Including this information will help others have an understanding of your photography technique and workflow to provide better suggestions. It will also give those desiring to replicate your technique a decent start.
Also please have the images available for viewing so the entire image fits on the screen without scrolling in large size.




Instructions for Comments

Please be constructive and friendly with your comments. Avoid insubstantial “Nice Job,” “Excellent Capture,” comments. Try to stick with the abbreviations listed below.


The comments should first focus on stereographic construction.

Suggestions for comment topics include:
1) Window alignment – presence or absence of windows violation (WV) through the window (TTW) effect as well as any recognized errors in construction
2) Depth of Image – The perceived depth of the image whether perfect or in need of improvement with a more broad or more narrow stereo base
3) Frames and logos – usually a matter of preference whether to include frames, titles and digital signatures, but comments could include likes, dislikes, or suggestions
4) The Overall Ease of Viewing

Of lesser importance in this group, but definitely encouraged are comments on the image itself. These are the type of comments found everywhere else on flickr including, lighting, color, texture, symmetry, and mood, etc.

Include one of the following to your comments so that posters will recognize your comment as a result of posting to this group.


************From below here *****************

Thanks for posting to
Cross-View (post 1 comment 2)

************To Above Here *****************


Abbreviations and Definitions

Cha-Cha - A method of capturing sterogram images with one camera where the photographer takes one image and moves laterally to one side a small distance to take the next image. This works well for still subjects but will produce out of synch results for moving subjects

Cross-view - Stereogram viewing format where the right image is on the left and the left image on the right. (Also referred to as x-view) Avoid the term cross-eyed.

Parallax - The slight differences in an image as a result of viewing a subject from two relatively identical perspectives which allow for binocular vision

Retinal Rivalry - A term used to describe ocular strain when viewing stereograms
resulting from out of synch images, windows violations, differences in color, rotation of images (radial, horizontal, or vertical), or generally poorly constructed stereograms.

Stereoscopy - The visual ability of to interpret parallax as a 3 dimensional image

Stereo Base - The distance between the center of the cameral lenses when photographing stereo pairs

Stereo Pair - Side by side images which have parallax to allow for 3D viewing. These can be arranged in natural orientation (for parallel viewing) or swapped for cross-viewing.

Stereo Photo Maker (SPM) - Free software program for editing and adjusting stereo pairs.

Stereo Window - Refers to the plane at the level of the screen.

Through the Window (TTW) - An effect resulting when the stereogram image breaks the plane of the stereo window. This is quite amazing when it is seen in the center of an image, however if evident on the borders, produces a windows violation ( WV) and eye strain.

Twin Rig - Two cameras mounted side by side for taking synchronized stereograms.

Windows Violation (WV) - A term describing alignment of stereo pairs such that one image seems to be in front of the other on the lateral border of the image. This is considered poor stereogram construction and leads to eye strain when viewing in stereo. This can usually be resolved by lateral adjustment of the stereo pairs.