DE102017008104B4 - 3D screen system with 360° perspective, visible from the horizontal, in the form of a truncated cone standing upside down without having to change the screen content and algorithm for converting a 3D object into the projection ring - Google Patents

Abstract

The algorithm for converting a 3D object into the projection ring The process that is protected consists of any 3D engine that displays a 3D object, which is rotated by 1° around the Y axis in the developed process and that 360 times. With each rotation, 1 line is recorded, running in the middle, vertically across the entire object, i.e. the color values are scanned. These 360 lines are projected onto the projection ring, 1 line each rotated by 1° around the center of the projection ring. This creates a 360° projection ring, which is the result of the process.

Description

3.) Technical description

Project consisting of software (process of the algorithm) and hardware

1.Software

The procedure of the algorithm for calculating a 3D object in a projection ring

2.Hardware

Projection screen centered on a display with the reflective hemisphere

software

1. a) Der Würfel wird um je 1° gedreht und (1)
2. b) je Drehung wird einen Linie die senkrecht zentriert über den gesamten Bildschirm verläuft eingescannt (2)
3. c) dann werden alle 360 Linien die eingescannt wurden auf einen Ring projeziert den Projektionring je 1° versetzt um den Mittelpunkt des Projektionringes rotierend (3)

Procedure(abstract, simplified prototype, to represent a cube(cube.obj)

1. a) The cube is rotated by 1° and ( 1 )
2. b) per rotation, a line that runs vertically centered across the entire screen is scanned ( 2 )
3. c) then all 360 lines that were scanned are projected onto a ring rotating the projection ring offset by 1° around the center of the projection ring ( 3 )

hardware

2 technical components

projection screen

The projection screen is a blunt mirrored cone
( 10/11/12 )

reflection hemisphere

A blunt open hollow hemisphere mirrored on the inside
( 15/16/17 )

to 2.) projection screen

• As a screen => best view (Projection screen made of a reflective material)
• The structure with a reflection hemisphere creates a hologram-like image in the form of a blunt cone on which the 3D object can be seen.

I wrote a small 3D engine using only opencv's trivial objects like drawing lines and circles and using direct I/O video access. I have implemented the procedure in this 3D engine and can currently load the prototype, a cube (cube.obj), as a wavefront .obj file, as well as all displayable 3D objects in .obj file format, and these in the variant that I have shown represent.

• 1(xz/top)
• 2(xy/front)
• 3(xz/top(Projektionsring)) 1by1 STEP
• 4 still top 0°
• 5 scan line front
• 7 still top 1°
• 8 scan line front ... 360° rotated object scanned
• 6 project line top0°
• 9 project line top1° ... 360° ring build

SOFTWARE Algorithm Method to prototype abstract cubes

• 1 (xz/top)
• 2 (xy/front)
• 3 (xz/top(projection ring)) 1by1 STEP
• 4 still top 0°
• 5 scan line front
• 7 still top 1°
• 8th scan line front ... 360° rotated object scanned
• 6 project line top0°
• 9 project line top1° ... 360° ring build

HARDWARE

• projection screen
  • 10 (xy/front)
  • 11 (xz/top)
  • 12 (light rays/front)
  • 13 (light rays/top)(the course of rays of the in 13 and 18 is described is the course of the rays of the lowest beam (schematic) 12 and 17 from a pixel located near the inner radius of the projection ring)
  • 14 template(obtuse cone) a angle between zsm. Edges to be joined ri inside radius ra outside radius (e.g. a=135° ri=1.5cm ra=5cm)
• reflection hemisphere
  • 15 (xy/front)
  • 16 (xz/top)
  • 17 (light rays/front)
  • 18 (light rays/top)*

Individual components contained in the patented structure can be found in other patent applications.

• - US2009/0009862A1 „Hyung-Ki, Hong“ 08.01.2009 „three-dimensional display device and displaying method using the same“
• - WO2017/196399A1 „Yatsko, Joseph, S.“ 16.11.2017 „hologram pyramid“

Thus, the projection screen in the form of a truncated cone, mirrored on the outside, is mentioned in the two applications listed.

• - US2009/0009862A1 "Hyung-Ki, Hong" 08.01.2009 "three-dimensional display device and displaying method using the same"
• - WO2017/196399A1 "Yatsko, Joseph, S." 11/16/2017 "hologram pyramid"

The obtuse hemisphere of reflection is mentioned in another application.
- DE 666 028 A "Ferruccio Cerri" 09/22/1938
"reflectors"

Claims (3)

Be protected by this patent The algorithm for converting a 3D object into the projection ring - The process that is protected consists of any 3D engine that displays a 3D object, which is rotated in the developed process by 1° around the Y-axis and that 360 times. With each rotation, 1 line is recorded, running in the middle, vertically across the entire object, i.e. the color values are scanned. These 360 lines are projected onto the projection ring, each 1 line offset by 1° rotating around the center of the projection ring. This creates a 360° projection ring, which is the result of the process. The structure, consisting of the mirrored projection screen and the reflection hemisphere, which is used to display a 3D object without having to change the screen content, shows the result as an image of the 3D object, standing in the air, 360° from all perspectives, in the horizontal, visible. - In order to be able to project the generated representation, i.e. the conversion of the 3D object, as a hologram-like image, the mirrored projection screen must be placed in the center of the projection ring. The reflection hemisphere is also placed at the center of the projection ring, creating a hologram-like image. - A hologram-like image of the projection screen can be viewed from all perspectives, also horizontally, by 360°. The viewer sees an advertising pillar in the form of an upside-down blunt cone, the projection screen, on which the 3D object is visible all around. - The structure of the hardware components, i.e. the projection screen and the reflection hemisphere, is protected in the form used, in all variants, with additions and in modified form, the construction itself and individual components. The sizes or dimensions of the individual components are variable, i.e. no fixed sizes. The materials used for the individual components are also arbitrary.

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