3D photography

Lenticular Printing

• Overview of 3D Photography Using HumanEyes Capture3D

  A sequence of pictures is shot using any still or video digital camera, and then downloaded onto a computer where the software generates the required views. The number of pictures required varies, but for optimum results HumanEyes recommends approximately a picture taken for every degree of the scene.

  Each picture shot contributes to the final image. Therefore, the more pictures taken, the truer the sense of depth achieved in the final, seamless picture.

  Unlike other 3D photography methods, the scene does not have to be re-shot in order to make alterations to the 3D output. The original sequence of pictures can be used any number of times to create images of different sizes and depth.

• Equipment Needed
  Any single digital still or video camera can be used to take the pictures. Digital video camera output is of lower quality and therefore is recommended only for the creation of previews or sketches. For high quality pictures, a still digital camera should be used. The photographer should use an arm to connect the camera to a tripod or camera stand. The photos are shot by moving the arm in an arc motion with a photo shot at least every one degree.
• Level of Photography Experience
  HumanEyes Capture3D is as simple as any other photography process. A professional photographer is needed only when a professional photographer would be used for regular photo shoots.
• Ideal Picture Setting
  Almost any person, scene or object can be shot as long as they do not move during the shoot. The pictures cannot be action shots.
• Scanning negatives instead of using a digital camera
  When scanning negatives, the quality of the final product depends on the quality of the scan. Note that low quality scans may cause deformations in the 3D picture, as well.
• Shooting in low and high resolutions
  Low resolution pictures are lower quality and contain less sharpness and detail, whereas high resolution pictures are very detailed and sharp. Low resolution photos are smaller in size and can be processed and viewed faster, and therefore should be used to proof the set. High resolution photographs should only be shot when the set is satisfactory.
• Doing the shoot

  The length of the shoot is dependent on several factors. The most important variables are resolution, camera, and location.

  For example, using a Nikon D1H camera, about 100 low-resolution photos can be shot in 1 minute. The lower the resolution, the faster the process; and similarly, if the photos are taken outside and do not require a flash, the process is also quicker as the photographer does not need to wait for the flash to load.

  The number of photographs is dependent on the width of the set. As the number of photos increases, so does the panoramic angle of the picture. As a general rule, at least one photo is needed per one degree.

  There is no problem if you wish to stop the process and continue it later, as long as the set and the lighting conditions do not change. If in some photos there were lighting problems or background motion, the user has the opportunity to ignore these photos during the processing stage. If a large number of photos are unusable, then the photo sequence must be reshot.

  3D photographs can be taken in black and white.

• Changing dimensions
  Unlike other traditional stereo photography methods, the sequence of photos is saved and can be used as many times as necessary, in the future, to create pictures of different dimensions and for different applications. It is not necessary to reshoot the entire scene.
• Understanding Stereoscopic Vision
  Stereoscopic vision is defined as three-dimensional vision produced by the fusion of two slightly different views of a scene received from each eye. For the best 3D sensation, different lenticular lenses require different viewing distances. For example, one lenticular lens would be used for a handheld postcard, and another one would be used for larger POP signs or vending machines.