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Item ends: 2017-06-30 09:00
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WO2013061334 (A1)

3D STEREOSCOPIC IMAGING DEVICE WITH AUTO PARALLAX

3D STEREOSCOPIC IMAGING DEVICE WITH AUTO PARALLAX

L'invention concerne un dispositif d'imagerie stéréoscopique 3D qui comprend simultanément des dispositifs d'imagerie ou une caméra RHS et des dispositifs d'imagerie ou une caméra LHS afin de générer une base de données d'images à champ de vue large et profond sans aucune erreur de parallaxe, de laquelle des images peuvent être assemblées en utilisant un module d'assemblage d'images ou un logiciel informatique, et de stocker dans le dispositif sous forme d'extension d'enregistrement d'image 2D des procédés fournissant un champ de vue large et profond avec parallaxe tout en révisant ou en projetant ou en affichant à l'aide des procédés dérivés de procédés 2D à l'oeil nu.
L'invention concerne un dispositif d'imagerie stéréoscopique 3D qui comprend simultanément des dispositifs d'imagerie ou une caméra RHS et des dispositifs d'imagerie ou une caméra LHS afin de générer une base de données d'images à champ de vue large et profond sans aucune erreur de parallaxe, de laquelle des images peuvent être assemblées en utilisant un module d'assemblage d'images ou un logiciel informatique, et de stocker dans le dispositif sous forme d'extension d'enregistrement d'image 2D des procédés fournissant un champ de vue large et profond avec parallaxe tout en révisant ou en projetant ou en affichant à l'aide des procédés dérivés de procédés 2D à l'oeil nu.
Applicants
MOHAN DEVARAJ 
Inventors
MOHAN DEVARAJ 
Examination:
Additional fee for renewal fee year 03
Date of dispatch: 2014-06-30
Examination:
Application deemed to be withdrawn year filing fee / search fee not paid in time
Date effective: 2014-05-27
Date of dispatch: 2014-07-01
This invention relates to 3D stereoscopic imaging device with auto parallax Objectives:
1. Obtaining the 3D illusion while viewing the displayed images of the methods as extended from 2D methods with naked eye or eyes; hence the images are captured by present 3D stereoscopic imaging device
2. Image storing database devices and Projection devices or displaying methods are as extended from 2D methods
3. The spectacle comprises present 3D stereoscopic imaging device and gives 3D illusion or double eye effect to the viewer while viewing through the single eye.
ACCORDING TO KNOWN
A. Range camera: Range imaging is the name for a collection of techniques which are used to produce a 2D image showing the distance to points in a scene from a specific point, normally associated with some type of sensor device. The resulting image, the range image, has pixel values which correspond to the distance, e.g., brighter values mean shorter distance, or vice versa. If the sensor which is used to produce the range image is properly calibrated, the pixel values can be given directly in physical units such as meters
B. Stereo camera: A stereo camera is a type of camera with two or more lenses with a separate image sensor or film frame for each lens. This allows the camera to simulate human binocular vision, and therefore gives it the ability to capture three-dimensional images, a process known as stereo photography. Stereo cameras may be used for making stereo views and 3D pictures for movies, or for range imaging. The distance between the lenses in a typical stereo camera (the intra-axial distance) is about the distance between one's eyes (known as the intra-ocular distance) and is about 6.35cm, though a longer base line (greater inter-camera distance) produces more extreme 3- dimensionality. Not all two-lens cameras are used for taking stereoscopic photos. A twin-lens reflex camera uses one lens to image to a focusing/composition screen and the other to capture the image on film. C. Lenticular lens: A lenticular lens is an array of magnifying lenses, designed so that when viewed from slightly different angles, different images are magnified. The most common example is the lenses used in lenticular printing, where the technology is used to give an illusion of depth, or to make images that appear to change or move as the image is viewed from different angles.
D. Depth perception: Depth perception is the visual ability to perceive the world in three dimensions (3D) and the distance of an object.
E. Depth sensation: Depth sensation is the ability to move accurately, or to respond consistently, based on the distances of objects in an environment
F. Parallax: Parallax is an apparent displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines. Nearby objects have a larger parallax than more distant objects when observed from different positions, so parallax can be used to determine distances
G. Stereoscopy: Stereoscopy (also called stereoscopic or 3-D imaging) refers to a technique for creating or enhancing the illusion of depth in an image by presenting two offset images separately to the left and right eye of the viewer. Both of these 2-D offset images are then combined in the brain to give the perception of 3-D depth. Three strategies have been used to accomplish this: have the viewer wear eyeglasses to combine separate images from two offset sources, have the viewer wear eyeglasses to filter offset images from a single source separated to each eye, or have the light source split the images directionally into the viewer's eyes (no glasses required; known as Auto stereoscopy).
H. Visual requirements
Anatomically, there are 3 levels of binocular vision required to view stereo images:
1. Simultaneous perception
2. Fusion (binocular 'single' vision)
3. Stereopsis
These functions develop in early childhood. Some people who have strabismus disrupt the development of stereopsis, however orthoptics treatment can be used to improve binocular vision. A person's stereoacuity determines the minimum image disparity they can perceive as depth
I. Side-by-side (non-shared viewing scenarios) : Traditional stereoscopic photography consists of creating a 3-D illusion starting from a pair of 2-D images, a stereogram. The easiest way to enhance depth perception in the brain is to provide the eyes of the viewer with two different images, representing two perspectives of the same object, with a minor deviation exactly equal to the perspectives that both eyes naturally receive in binocular vision. If eyestrain and distortion are to be avoided, each of the two 2-D images preferably should be presented to each eye of the viewer so that any object at infinite distance seen by the viewer should be perceived by that eye while it is oriented straight ahead, the viewer's eyes being neither crossed nor diverging. When the picture contains no object at infinite distance, such as a horizon or a cloud, the pictures should be spaced correspondingly closer together.
J. Freeviewing: Freeviewing is viewing a side-by-side image without using a viewer. The parallel view method uses two images not more than 65mm between corresponding image points; this is the average distance between the two eyes. The viewer looks through the image while keeping the vision parallel; this can be difficult with normal vision since eye focus and binocular convergence normally work together. The cross-eyed view method uses the right and left images exchanged and view the images cross-eyed with the right eye viewing the left image and vice-versa. Prismatic, self masking glasses are now being used by cross-view advocates. These reduce the degree of convergence and allow large images to be displayed
K. Stereographic cards and the stereo scope: Two separate images are printed side-by-side. When viewed without a stereoscopic viewer the user is required to force his eyes either to cross, or to diverge, so that the two images appear to be three. Then as each eye sees a different image, the effect of depth is achieved in the central image of the three. L. Head-mounted displays: The user typically wears a helmet or glasses with two small LCD or OLED displays with magnifying lenses, one for each eye. The technology can be used to show stereo films, images or games
M. Panorama: Panoramic photography is a technique of photography, using specialized equipment or software, that captures images with elongated fields of view. It is sometimes known as wide format photography. The term has also been applied to a photograph that is cropped to a relatively wide aspect ratio. While there is no formal division between "wide-angle" and "panoramic" photography, "wide angle" normally refers to a type of lens, but using this lens type does not necessarily make an image a panorama. An image made with an ultra wide angle fisheye lens covering the normal film frame of 1 :1.33 is not automatically considered to be a panorama. An image showing a field of view approximating, or greater than, that of the human eye - about 160° by 75° - may be termed panoramic. This generally means it has an aspect ratio of 2:1 or larger, the image being at least twice as wide as it is high. The resulting images take the form of a wide strip. Some panoramic images have aspect ratios of 4:1 and sometimes 0:1 , covering fields of view of up to 360 degrees. Both the aspect ratio and coverage of field are important factors in defining a true panoramic image.
In terms of the format of panoramas, there are essentially three different kinds
1. Partial panoramas mainly from traditional landscape photography.
They are created by stitching (assembling) of multiple normal photos together side-by-side, which creates a photo with much wider angle that would be possible with a normal lens.
2. One notch higher are 360° photos which capture the whole field of view in all directions around the photographer. These are sometimes called cylindrical panoramas. They cover 360-degrees around but not up and down view. These are too created by stitching multiple photos together. The only real difference from partial panoramas is need to make sure the first and the last photos overlap. There are also so called "one shot" 360-degree lenses but they are by definition very low quality compared to the traditional stitched panoramas.
3. Spherical panoramas are the top of the line which not only capture the 360-degree field of view but in which you can also look up and down. They can even be taken in a way can't see the tripod nor the photographer's shadow in the picture.
N. Panoramic Views In 3d (Cyber-Shot Digital Camera by Sony): Regular 2D-type Sweep Panorama uses the central part of the CMOS sensor with narrow rectangular strips to "scan" a scene. However, 3D Sweep Panorama utilises two off-centre bands in the CMOS sensor. While the camera is swept across a panoramic scene, these two narrow bands in the sensor "scan" the scene from slightly different angles, capturing two slightly different panoramic images. Each image simulates the view seen by either the left or right human eye— allowing a single-lens compact camera to capture two images without using two separate lenses. When 3D image data is played back, the left eye sees the image for the left eye while the right eye sees the image for the right eye. These two images from two viewpoints are processed inside the human brain, allowing users to experience seeing 3D images. This system of "binocular parallax" is the basis for Sony's new 3D Sweep Panorama innovation.
O. Single Lens Optical System advanced from half mirror 3D camera systems: In existing half mirror 3D camera systems with separate lenses for the left and right eyes, the parallax range is adjustable, enabling the depth of the 3D images to be modified . However, when operating the zoom and focus functions of such systems, the sensitivity of the human eye, in particular to differences in the size and rotational movement of dual images, as well as any vertical misalignment or difference in image quality has meant that complex technology has been required to ensure that each camera lens is closely coordinated, and there are no discrepancies in the optical axis, image size, and focus. The introduction of a single lens system resolves any issues that may occur as a result of having different optical characteristics for each eye. Furthermore, by using mirrors in place of shutters, incoming light can now be simultaneously separated into left and right images and recorded as it reaches the parallel light area (the area where diverging light from the point of focus on the subject matter becomes parallel) of the relay lens. The separated left and right images are then processed and recorded with the respective left and right image sensors. As there is no difference in time between when the left and right eye images are captured, it is possible for natural and smooth 3D images to be captured, even of scenes involving rapid movement.
Technological Features of Single Lens Optical System
1. New single lens optical system
a. Captures left and right images simultaneously to deliver natural and smooth 3D images with no accommodation-vergence conflict.
b. Eliminates the need for lens synchronization, ensuring easily accurate control of 3D zoom and focus functions. c. When polarized glasses are not used, viewers with still be able to see natural 2D images, as the disparity of the images for left and right eyes are within the range that human eyes can recognize as a blur.
2. 240fps image capture to realize high quality motion images
a. Realizes high quality capture of 3D content including fast- moving subject matter such as sports.
P. Vectograph : A vectograph is a type of stereoscopic print or transparency viewed using the polarized 3D glasses most commonly associated with projected three-dimensional motion pictures.
Q. Anaglyph 3D: The image has two color "layers", and it is separating the layers while using glasses that has blue/red lenses. This is called Anaglyph
3D, The problem is that lose colors in the image. It simply looks bad
R. Polarized (passive) 3D: A Polarized 3D uses a polarizing filter on the image so the left and right images each has a different polarization. You use passive glasses that filter the right image for each eye.
S. Active-shutter 3D: The new breed of 3D TVs and projectors make use of a simple idea - you display images for the left and right eye alternatively - once the image for the left eye, and once for the right. Now all you have to do is wear glasses that block each eye in sync with the display, and you get 3D. Active Shutter 3D glasses main advantage is that the image looks great - just as they look in 2D on the same display.
T. No-glasses 3D (Auto-Stereoscopy): Autostereoscopy is any method of displaying stereoscopic (3D) images without the use of special headgear or glasses on the part of the viewer. Because headgear is not required, it is also called "glasses-free 3D". The technology includes two broad classes of displays: those that use head-tracking to ensure that each of the viewer's two eyes sees a different image on the screen, and those that display multiple views so that the display does not need to know where the viewers' eyes are directed. Examples of autostereoscopic displays include parallax barrier, lenticular, volumetric, electro-holographic, and light field displays.
U. Volumetric displays: real 3D images: The most straightforward way to create a 3D display, is to actually creating it in 3D. These are called Volumetric displays, and which usually involves lasers and rotating or vibrating mirrors. A volumetric display using a mirror that is rotating very very fast, and a projector that projects an image on it... this creates a 3D image that you can view all around (360 degrees).
This present invention gives us a 3D stereoscopic imaging device incorporating the RHS imaging devices or camera and LHS imaging devices or camera simultaneously to generates a high resolution, wide and depth of field of view with absolutely no parallax error image database from which images are stitched by the arrangement of either image Stitching Module or Computer software and stores in the device as extended from 2D image storing methods to provide parallax, wide and depth of field of view while reviewing or projecting or displaying through methods as extended from 2D methods with naked eye or eyes.
DESCRIPTION OF THE DRAWINGS
The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which: FIG. 1 is a plan view of a 3D stereoscopic imaging device according to the present invention;
FIG. 2 is a plan view of a further embodiment of a present 3D stereoscopic imaging device comprises the LHS imaging device or Camera, RHS imaging device or Camera are mounted on a Jig with an appropriate angle subject to absolutely no parallax error and the mounting is assembled with the facility of angular adjustment away from the Parallax or towards to the Parallax and perpendicularly linear adjustment away from the Parallax or towards to the Parallax in simultaneously or separately for individual camera or both the cameras. The resulting of left and right signals are fed to either image Stitching Module or Computer software to store the stitched images in the device as extended from 2D image storing methods. The present 3D stereoscopic imaging device is comprise the view finder and it is receives the signals of stitched images from either image Stitching Module or Computer hence the overall effect of Image on view finder gives 3D illusion to the viewer.
No 1 of FIG. 2 is signifying parallax for volumetric of coverage
No 2 of FIG. 2 is signifying casing of 3D stereoscopic imaging device
No 3 of FIG. 2 is signifying RHS imaging device or Camera
No 4 of FIG. 2 is signifying Gear and Motor Assembly for linear adjustment
No 5 of FIG. 2 is signifying Terminal for Video out and Power in
No 6 of FIG. 2 is signifying image Stitching Module with branching cable and connecting terminals for substances
No 7 of FIG. 2 is signifying Zoom in and Zoom out for RHS imaging device or Camera and LHS imaging device or Camera
No 8 of FIG. 2 is signifying Gear and Motor Assembly for angular adjustment
No 9 of FIG. 2 is signifying Optical ray
No 10 of FIG. 2 is signifying Mounting arrangement for linear adjustment
No 11 of FIG. 2 is signifying belt arrangement for movement of mounting arrangement for linear adjustment
No 12 of FIG. 2 is signifying LHS imaging device or Camera
No 13 of FIG. 2 is signifying accessory arrangement for angular adjustment
No 14 of FIG. 2 is signifying Guiding arrangement for angular adjustment No 15 of FIG. 2 is signifying Nut arrangement on Screw rod arrangement for angular adjustment
No 16 of FIG. 2 is signifying Screw rod with Gear arrangement for angular adjustment
No 17 of FIG. 2 is signifying alignment for parallax for volumetric of coverage
No 18 of FIG. 2 is signifying View finder
FIG. 3 is a diagram is explaining the plan view of optical rays of present 3D stereoscopic imaging device
No 1 of FIG. 3 is signifying parallax for volumetric of coverage
No 2 of FIG. 3 is signifying RHS Axis
No 3 of FIG. 3 is signifying LHS Axis
No 4 of FIG. 3 is signifying Screen of Auditorium
No 5 of FIG. 3 is signifying LHS imaging device or Camera
No 6 of FIG. 3 is signifying RHS imaging device or Camera
No 7 of FIG. 3 is dotted lines are signifying the Illusion effects
No 8 of FIG. 3 is signifying the Projection equipment
FIG. 4 is a diagram is explaining the properties on neither RHS imaging devices or camera nor LHS imaging devices or camera of the present 3D stereoscopic imaging device as while the sum of the volume of cone having as diameter is on plane of area coverage of object and as length is nothing but the distance between focal point and plane of area coverage of object and the volume of cone having as diameter is on plane of area coverage of image and as length is nothing but the distance between focal point and plane of area coverage of image shall be equal sum while interchanging the object and image.
FIG. 4, "F" representing Focal point of lens
FIG.4, "LN" representing lens
FIG. 4, "OB" representing Objects
FIG. 4, "IM" representing Image FIG. 4, "A" and "C" representing volume of cone having as diameter is on plane of area coverage of object and as length is nothing but the distance between focal point and plane of area coverage of object
FIG. 4, "B" and "D" representing volume of cone having as diameter is on plane of area coverage of image and as length is nothing but the distance between focal point and plane of area coverage of image
FIG. 5 is a plan view of a spectacle comprises present 3D stereoscopic imaging device and gives 3D illusion or double eye effect to the viewer while viewing through the single eye
No 1 of FIG. 5 is signifying alignment for parallax for volumetric of coverage
No 2 of FIG. 5 is signifying View finder
No 3 of FIG. 5 is signifying LHS imaging device or Camera
No 4 of FIG. 5 is signifying RHS imaging device or Camera
No 5 of FIG. 5 is signifying Zoom in and Zoom out for RHS imaging device or Camera and LHS imaging device or Camera
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 , The present invention relates to a 3D stereoscopic imaging device incorporating the RHS imaging devices or camera and LHS imaging devices or camera simultaneously to generates a high resolution, wide and depth of field of view with absolutely no parallax error image database from which images are stitched by the arrangement of either image Stitching Module or Computer software and stores in the device as extended from 2D image storing methods to provide parallax, wide and depth of field of view while reviewing or projecting or displaying through methods as extended from 2D methods with naked eye or eyes.
FIG. 2, Stereoscopic images are formed at present 3D stereoscopic imaging device by fitting the imaging devices with an appropriate angle subject to absolutely no parallax error in other words RHS imaging devices must cover the LHS volume of area and LHS imaging devices must cover the RHS volume of area, creating parallax to provide the third dimension of depth perception. The resulting left and right signals are fed to either image Stitching Module or Computer software to store the stitched images in the device as extended from 2D image storing methods. FIG. 3,The present 3D stereoscopic imaging device is comprises the arrangement between RHS imaging devices or camera and LHS imaging devices or camera hence the images comprise the Real LHS optical lens axis and Real RHS optical axis and virtual third axis. Virtual axis is being stitched the images captured by LHS or RHS camera and gives separate depth illusion. The images originated to virtual axis are being observed on priority by human naked eye or eyes,
FIG. 4, Find the properties on neither RHS imaging devices or camera nor LHS imaging devices or camera of the present 3D stereoscopic imaging device as while the sum of the volume of cone having as diameter is on plane of area coverage of object and as length -is nothing but the distance between focal point and plane of area coverage of object and the volume of cone having as diameter is on plane of area coverage of image and as length is nothing but the distance between focal point and plane of area coverage of image shall be equal sum while interchanging the object and image.
According to the finding of neither RHS imaging devices or camera nor LHS imaging devices or camera of present 3D stereoscopic imaging device is comprising the design such a way neither during focusing nor Zooming that the optical rays from image sensor of imaging device is being transmitting towards the object to decide the distance between focal point and the object to form the image of sensor on object, the size of image of object stored on image sensor is nothing but the size of image of sensor formed on object.
FIG. 5, The present 3D stereoscopic imaging device comprises the LHS imaging device or Camera, RHS imaging device or Camera are mounted on a Jig and the mounting is assembled with the facility of angular adjustment away from the Parallax or towards to the Parallax and perpendicularly linear adjustment away from the Parallax or towards to the Parallax in simultaneously or separately for individual camera or both the cameras.
FIG. 5, the present 3D stereoscopic imaging device comprises the operating principles is Focus in: The facility on Mounting for angular adjustment to be adjusted as away from the Parallax in simultaneously or separately for individual camera or both the cameras until the subject to high resolution image.
Focus out: The facility on Mounting for angular adjustment to be adjusted as towards to the Parallax in simultaneously or separately for individual camera or both the cameras until the subject to high resolution image.
Zoom in: The facility on Mounting for angular adjustment to be adjusted as away from the Parallax in simultaneously or separately for individual camera or both the cameras until the subject to high resolution image.
Zoom out - The facility on Mounting for angular adjustment to be adjusted as towards to the Parallax in simultaneously or separately for individual camera or both the cameras until the subject to high resolution image.
FIG. 6, The present 3D stereoscopic imaging device is comprise the view finder and it is receives the signals of stitched images from either image Stitching Module or Computer hence the overall effect of Image on view finder gives 3D illusion to the viewer. The spectacle incorporating the present 3D stereoscopic imaging device hence it gives 3D illusion or double eye effect to the viewer while viewing through the single eye.
The invention is not to be limited by what has been particularly shown and described, except as indicated by the appended claims.
1. The present 3D stereoscopic imaging device is incorporating the RHS imaging devices or camera and LHS imaging devices or camera simultaneously to generates a high resolution, wide and depth of field of view with absolutely no parallax error image database from which images are stitched by the arrangement of either image Stitching Module or Computer software and stores in the device as extended from 2D image storing methods to provide parallax, wide and depth of field of view while reviewing or projecting or displaying through methods as extended from 2D methods with naked eye or eyes. 2. The present 3D stereoscopic imaging device according to the claim no.1 , the 3D stereoscopic imaging device is comprises the arrangement between RHS imaging devices or camera and LHS imaging devices or camera hence the images comprise the Real LHS optical lens axis and Real RHS optical axis and virtual third axis. Virtual axis is being stitched the images captured by LHS or RHS camera and gives separate depth of illusion. The images originated to virtual axis are being observed on priority by human naked eye or eyes 3. The present 3D stereoscopic imaging device according to the claim no.1 , the Stereoscopic images are formed at 3D stereoscopic imaging device by fitting the imaging devices with an appropriate angle subject to absolutely no parallax error in other words RHS imaging devices must cover the LHS volume of area and LHS imaging devices must cover the RHS volume of area, creating parallax to provide the third dimension of depth perception. The resulting left and right signals are fed to either image Stitching Module or Computer software stores in the device as extended from 2D image storing methods 4. The present 3D stereoscopic imaging device according to the claim no.1 , The present 3D stereoscopic imaging device is comprise the view finder and it is receives the signals of stitched images from either image Stitching Module or Computer hence the overall effect of Image on view finder gives 3D illusion to the viewer. 5. The present 3D stereoscopic imaging device according to the claim no.1 , claim no 4, The spectacle comprises present 3D stereoscopic imaging device and gives 3D illusion or double eye effect to the viewer while viewing through the single eye 6. 3D stereoscopic imaging device substantially as herein described with reference to the accompanying drawing
Technical details

CAMERA (VE illusions)  AS COMPARABLE TO HUMAN VISUAL SYSTEM

Captured images/video,  Projector projects the FINAL images as comparable to the natural illusion of human visual system

This is nothing but the coordination between the alignment of Converging, Disparity and stereoscopic fusion.

 

 

Application examples

Why VE illusion:

  1. It absolutes the existing 3D camera technics
  2. No more  wearing of glass / Eye strains / Brain Burn / headaches / stereoscopic fusion
  3. VE illusions is the artificial feeling of human visual system
  4. It is only the method to transfer the feelings of depth of illusion to human visual system through any one of eye without any strain
  5. VE illusion is encouraging the audience to watch on big screen
  6. VE illusion’s Broadcasting / projection equipment are  remain same as 2D
Financial aspects

Industrial Application:

  1. Revolution in field of Information and Broadcasting
  2. VE illusion Camera to capture the scene with visual feelings
  3. Lap apparatus to demonstrate the Human visual system
  4. Spectacle to get the VE illusion for single eye / sight defected people
  5. VE illusion camera for space / satellite
  6. Artificial visual system for fully blind people
Other information

India Patent 

1. # 194278 date 09th Oct 2004

2. # Patent Pending 

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