Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

High-definition real-time depth-mapping TV camera: HDTV Axi-Vision Camera

Open Access Open Access


We have developed a field-worthy, high-definition, real-time depth-mapping television camera called the HDTV Axi-Vision Camera. The camera can simultaneously capture both an ordinary HDTV color image and a depth image of objects on more than 1280×720 pixels at a frame rate of 29.97 Hz, or on 853×480 pixels at a frame rate of 59.94 Hz. The number of detectable pixels per unit time was increased by about 5 times that of the prototype camera by improving the sensitivity and resolution of the depth-mapping camera. Short video clips demonstrate how depth information from the camera can be used to create a virtual image in actual television program production.

©2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Gain-modulated Axi-Vision Camera (high speed high-accuracy depth-mapping camera)

Masahiro Kawakita, Keigo Iizuka, Rei Iwama, Kuniharu Takizawa, Hiroshi Kikuchi, and Fumio Sato
Opt. Express 12(22) 5336-5344 (2004)

Axi-Vision Camera (real-time distance-mapping camera)

Masahiro Kawakita, Keigo Iizuka, Tahito Aida, Hiroshi Kikuchi, Hideo Fujikake, Jun Yonai, and Kuniharu Takizawa
Appl. Opt. 39(22) 3931-3939 (2000)

Photon counting compressive depth mapping

Gregory A. Howland, Daniel J. Lum, Matthew R. Ware, and John C. Howell
Opt. Express 21(20) 23822-23837 (2013)

Supplementary Material (3)

Media 1: MOV (2496 KB)     
Media 2: MOV (2310 KB)     
Media 3: MOV (2428 KB)     

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.

Figures (12)

Fig. 1.
Fig. 1. (2.4 MB) Video clip from the Japan Broadcasting Station (NHK) broadcast produced using the HDTV Axi-Vision Camera. The high-definition TV program is the “50th Anniversary: Today is the birthday of TV. Grand finale.” broadcast live from NHK. A moving computer graphic image was amalgamated in real time with an image of a singer using the depth information.
Fig. 2.
Fig. 2. Principle of acquiring depth information by using intensity-modulated illumination and an ultra-fast camera shutter using an image intensifier.
Fig. 3.
Fig. 3. Configuration of the HDTV Axi-Vision Camera.
Fig. 4.
Fig. 4. Photograph of the HDTV Axi-Vision Camera.
Fig. 5.
Fig. 5. Quantum efficiency of the photocathode of the image intensifier.
Fig. 6.
Fig. 6. Transmittance of the dichroic prism and the optical filter.
Fig. 7.
Fig. 7. LED array units: (a) geometry, (b) spatial distribution of optical power.
Fig. 8.
Fig. 8. Output image signal as a function of distance between the object and camera.
Fig. 9.
Fig. 9. Depth resolution as a function of object distance.
Fig. 10.
Fig. 10. Relationship between object reflectivity and depth resolution.
Fig. 11.
Fig. 11. (2.5 MB) Video clip of depth-keying examples: (a) color image, (b) depth image, (c) objects in the furthest range only, (d) objects in the middle range only, (e) objects in the nearest range only.
Fig. 12.
Fig. 12. (22.4 MB) Video clip of a virtual studio synthesized by combining live images with prerecorded scenes.

Tables (1)

Tables Icon

Table 1. Specifications of the HDTV Axi-Vision Camera

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

I + ( t s , d ) = σ ( 4 π d 2 ) 2 s ( t s 2 d ν ) .
I ( t s , d ) = σ ( 4 π d 2 ) 2 s [ T 2 ( t s 2 d ν ) ] ,
d = 1 2 ν [ t s T 2 ( R 1 + R ) ] ,
R = I + I .
d = λ 8 ( 1 R 1 + R ) ,
n pe ¯ = η E A p τ ε m 2 ,
( S N ) pe = n pe ¯ σ pe = n pe ¯ = η E A p τ ε m 2 .
( S N ) phosphor = ( S N ) pe 1 N f = η E A p τ ε m 2 N f .
E ρ T L I 4 F N 2 S I d 2 ,
( S N ) phosphor η T L I A p τ d .
Select as filters

Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.