JVC DT-3D24G1U, DT-3D24G1 Technical Manual

Page 1
Multi-format 3D LCD Monitor
DT-3D24G1
Page 2
PRODUCT PLANNING OBJECTIVES
Compact and portable 24-inch screen size. A variety of helpful camera-assist functions. Convenient 3D setup functions.
Direct operation via easy-to-press hard buttons.
RealD 3D eyeglasses.
A monitor designed for 3D video content that delivers
100% performance in any recording application.
2
Page 3
FEATURES
3D Monitor Features
Xpol® Circular Polarizing System compatible with
widely available RealD 3D eyeglasses.
3D Cursor and Grid Modes for easy binocular
disparity adjustment.
Camera-assist functions: Mirror/Rotation,
Split, R Shift, Anaglyph, LR Sequential,
Individual, and LR Swap.
Dual Time Code, Waveform and
Vectorscope displays.
3D Mixing function.Supports Line-by-Line and Side-by-Side
3D formats.
Basic Monitor Features
Supports 3G-SDI, dual HD-SDI, and DVI.WUXGA (1920 x 1200p) professional monitor.ITU-709 color gamut.Gamma 2.2, 2.35, 2.45, and 2.6 presets.Supplied with tilt stand.DC 24V power supply capability.
3
Page 4
CAMERA-ASSIST MENU: RIG SETTINGS
Rig Settings
Features: Depending on the rig setting
of the stereo camera, images from either
camera (left or right) can be rotated 180­degrees and inverted or switched horizontally or vertically.
Advantage: Left and right images are
easily reconfigured to synchronize the view
in virtually any camera rig setting.
Benefit: Convenient operation is assured
when using cameras in a new rig setting as individual settings are saved even after the Camera-assist Menu is closed.
NOTE: Rotation (vertical) and mirror (180-degree rotation)
will delay the image by two frames and a frame
synchronizer is used to synchronize the delayed image.
Synchronized L /R image
Right image inverted vertically
Right image inverted horizontally and vertically
Right image inverted horizontally
Left and right images can be configured to match virtually any rig setting.
Photo: © Richard Clark, President, Inter Video
4
Page 5
CAMERA-ASSIST MENU: SPLIT AND L/R SEQUENTIAL
Split
Features: L images are displayed on the left of
the Split line, and R images on the right.
Advantages: The vertical line can be shifted
freely to the left or right and the horizontal line position can also be adjusted.
Benefits: Quick verification of misalignment
while rotating images during rig settings,
simplified checking of left/right camera positions, and easy confirmation of hue and white balance of the two images.
L
R
L
R
Left image
Marker for R image
Horizontal line
0.5 sec.0.5 sec.0.5 sec.0.5 sec.
Right image
Marker for L image
L/R Sequential
Features: Left and right images are
displayed alternatively at 0.5-second intervals.
Advantage: A horizontal line and square
marker on the upper left or right of the screen are displayed to help in differentiating between L and R images.
Benefit: Experienced creators can use L/R
Sequential to better generalize the overall
content of a 3D recording without wearing 3D
eyeglasses.
Left image Right image
Split line
Horizontal
line
L
The vertical line can be shifted freely to the left or right and the horizontal line position can also be adjusted.
Mismatched iris adjustment
Vertical shift in the recording position
Mismatched white balance
Horizontal line
5
Methods to check the alignment of both cameras vary but the DT-3D24G1
has many convenient features that enable users to answer any requirement.
Page 6
CAMERA-ASSIST MENU: R-SHIFT AND ANAGLYPH
R-Shift
Features: Images on the right can be shifted
horizontally while 3D images (left and right signals) are displayed simultaneously.
Advantage: Images on the right can be
freely shifted as desired.
Benefits: 1.) Real-time confirmation of
optimally applied 3D effects and proper
camera setting alignment is possible.
2.) 3D effects can be viewed and verified on­screen prior to actually moving the cameras.
Anaglyph
Features: Enables binocular disparity to be
checked using traditional red (for L images) and blue (for R images) colors.
Advantage: As with the R-Shift function, images on
the right can be freely shifted as desired.
Benefits: 1.) Enables easy verification of vertical
alignment/tilt of the cameras without having to wear 3D eyeglasses.
2.) Clearly divided in sections, the amount of binocular disparity is easily recognizable.
Move the right image at will to check the 3D effect
6
Methods to check the alignment of both cameras vary but the DT-3D24G1
has many convenient features that enable users to answer any requirement.
Page 7
CAMERA-ASSIST MENU: INDIVIDUAL AND L/R SWAP
Individual
Features: Each left and right image can be
displayed individually.
Advantage: Left and right images
can be easily switched without noise by pressing on the SELECT button.
Benefit: Enables quick verification of
disparity between left and right input signals as switching can be freely performed as desired.
L/R Swap
Features: Allows left and right images to
be easily swapped.
Advantage: The reconnecting or
switching of input signals is not required.
Benefit: Helps in checking whether the
cables are properly connected.
L
R
L
R
L
R
The horizontal line can freely be shifted up and down.
L/R Swap is useful for determining whether the cables are correctly connected to the proper
terminals.
L R
L R
L R
LR Swap: Off
L R
L R
R L
LR Swap: On
7
Horizontal line
Methods to check the alignment of both cameras vary but the DT-3D24G1
has many convenient features that enable users to answer any requirement.
Page 8
CAMERA-ASSIST MENU: DUAL TIME CODE AND SCOPE BUTTON/LAMP
Dual Time Code
Features: Dual Display Mode and 3D
Display Mode are useful for checking the time codes of left and right input signals.
Advantages: Time codes of both left and
right signals are shown in Dual Display Mode, whereas only the left signal time code is displayed in 3D Display mode.
Benefit: Dual Display Mode makes it easy
to check the time code of both input signals.
Dual Display Mode: Displays time codes for left and right signals as well as the time gap between the two signals.
3D Display Mode
Displays TC1 (left signal time code)
Scope Button/Lamp
Features: The two built-in oscilloscopic wave
signals of Waveform (W.F.M.) and Vectorscope (V.S.) can be displayed.
Advantages: Parallel Wave Form, Parallel
Vector Scope, Difference Wave Form, and Difference Vector Scope displays are available. The SCOPE button can also be used to select a monitor mode, which cycles through these modes.
Benefit: A separate scope monitor is not
required.
Parallel Wave Form: Displays the two signal forms side by side.
Parallel Vectorscope: Displays the two signal scopes side by side.
Difference Wave Form: Displays the
differential between the two signals in
wave form.
Difference Vectorscope: Displays
the differential between the two
signals in vectorscope.
8
Methods to check the alignment of both cameras vary but the DT-3D24G1
has many convenient features that enable users to answer any requirement.
Page 9
3D BASICS: SETUP AND RECORDING METHODS
Setting Up the DT-3D24G1
Advantages: In addition to a wide variety of
camera- assist functions, a number of features that are specific to 3D recordings such as the 3D Cursor and Grid Modes are also available.
Basics of 3D camera recording
There are two methods of making 3D recordings, either of
which can be used to suit specific requirements.
Parallel method: The two cameras are positioned in
parallel with wider disparity (two cameras placed further
apart) used to increase field depth, while a longer
convergence point makes images appear to pop up. When the disparity is widened, however, image deterioration is likely to occur in the background.
Convergence method: When the divergence angle is
widened significantly, this will cause the subject matter
to shift behind the screen surface and result in image
deterioration.
Parallel method: Depth and pop-up effects cannot be mixed into a single scene.
Convergence method: Excessive divergence angle can cause too much disparity, requiring keystone adjustment of the image.
When compared to conventional video recordings, the setting up of
3D recordings can take up to three times longer as lengthy camera installation
and the proper adjustment of depth and pop-up effects are required.
9
Benefits: The DT-3D24G1 not only speeds up
the 3D recording process but also helps to create 3D recordings that are more comfortable to view.
Page 10
3D BASICS: POP-UP AND DEPTH PRINCIPLES
Image in the right cameraImage in the left camera
The three objects will appear as shown above in both left and right cameras.
Left eye
Right eye
Red circle:
Appears to
pop up on
the screen.
Green triangle:
Appears to be deep into the screen.
Left eye
Right eye
Screen surface
Blue square: Appears to be on the surface of the screen without any 3D effect as left and right images overlap perfectly.
Left eye
Right eye
Screen surfaceScreen surface
The creator selects the position of an
object on the screen and sets the
convergence point. In this case, the
convergence point is where the blue
square is positioned.
Convergence recording method
10
Page 11
Recording on a stereo rig with
60mm binocular parallax.
600mm
parallax!
The human eye cannot
perceive images in 3D when
the divergence angle
exceeds two degrees.
In this case, the human eye will not
perceive background scenery in 3D.
3 meters from the
camera to the object.
30 meters from the object to
the background = 600mm
binocular parallax.
3D BASICS: FUSION DETERIORATION
The object will be
viewed on the
screen surface.
TIPS:
1) Guidelines for background percentage gaps of two images:
Hollywood production concerns
recommend a display ratio of less than
1.7%.
Japanese production concerns
recommend a display ratio of less than
2.0%.
2) Binocular parallax for pop-up or background effects should be maintained at a maximum between 50
- 60mm to prevent eye fatigue and other adverse effects when viewing 3D video content.
θ=-11°
When a recording is made in 3D with the background at a distance and an object in the near foreground simultaneously, the
human eye will perceive only the object in
the foreground in 3D and not the background scenery.
This is because as the distance between the subject in the foreground and background increases, binocular parallax
widens significantly.
Page 12
3D CREATION MODES: 3D CURSOR MODE
3D Cursor Mode
Features: Enables the easy checking and
adjustment of binocular disparity during recording
or editing.
Advantages: In addition to facilitating binocular
disparity adjustment on-screen, more efficient 3D scaling is assured via disparity values displayed in the number of pixels and percentages for negative
and positive depth. This means that the counting,
measuring, and/or calculating of pixels are no longer necessary.
Benefits: Warnings are provided when values
exceed established tolerance levels, helping to drastically reduce the time required for 3D content
production.
NOTE: When binocular disparity values surpass
2.0%, normal viewing without adverse health effects may become difficult for certain viewers.
Binocular disparity values
are displayed in the number
of pixels and percentages.
Red cursors
are warnings.
How it works: On the screen, 3D Cursors or the line
markers of V for left (dash dot), V for right (solid line) and H (dashes) are shown. There are two sets of Cursors, Group A in green and Group B in purple, either of which can be used to finely adjust levels of depth or pop-up; the H line is used as a horizontal guide.
12
Page 13
3D CREATION MODES: GRID MODE
Grid Mode
Features: Grids are used to facilitate the
checking of gaps in depth and pop up.
Advantage: By displaying grid lines over the
screen with pixel values shown on the top right corner of the screen, variable scaling helps in determining the ideal positions of left and right images instantaneously.
Benefit: As the size of the grids is variable,
gap values can be easily checked by selecting the optimum grid size. And this makes counting the number of pixels or calculating percentages unnecessary.
Tips: Both the 3D Cursor and Grid
Modes can be used to measure the binocular disparity of 3D effects.
3D Cursor Mode is useful for obtaining the correct value of binocular disparity of a specific
position, whereas the Grid Mode is
helpful for checking the overall picture as it is especially suited for measuring more than three different 3D effects on a screen.
There are two grid displays, Normal and
Center Window, which can be selected by pressing the SELECT button.
The variable grid lines can be adjusted by turning the POSITION knob on the front panel to stretch or squeeze grids
into desired
sizes.
13
Page 14
3D RECORDING CHALLENGES AND SOLUTIONS
14
3D recording challenges DT-3D24G1 solutions
Precise adjustment of vertical position gaps
between the left and right cameras to prevent eye fatigue and other adverse effects.
Preventing vertical and horizontal rotation or
inversion of one or both images caused by
different camera rig settings.
Creating top-quality 3D content that will not
cause eye fatigue and other adverse effects.
Convenient camera-assist functions help in adjusting
vertical position gaps and correcting left and right images regardless of the camera rig setting selected in advance.
The approximate counting, measuring, and/or calculating
of pixels are no longer necessary thanks to handy
functions such as Cursor Mode and Grid Mode. The value of pixels and percentages are clearly displayed to help in determining the correct amount of binocular disparity.
Optimum results assured:
Usually with conventional 3D recording methods, only a few scenes can be recorded
in one day and these must be checked after returning to the studio. But the DT-3D24G1
is capable of delivering up to three times the recording volume thanks to user-friendly and
intuitive functions as well as the superb mobility provided by its lightweight and compact design.
What’s more:
One of the most important topics in the field of 3D content creation today is how to prevent
adverse health effects that some viewers can experience when watching 3D videos. And the
DT-3D24G1 helps to alleviate this phenomenon by making it easier for creators to determine
whether 3D effects are too extreme for a given production.
Therefore, 3D creators will be pleased to know that:
When properly used, the user-friendly and intuitive features of the DT-3D24G1 ensure
the creation of high-quality 3D video content, faster and more precisely.
Page 15
SPECIFICATIONS
General
Model name DT-3D24G1 Type Multi-format 3D LCD Monitor
Screen size Type 24 wide format
Aspect ratio 16:10
Format 3G SDI: SMPTE424M/SMPTE425M
DUAL LINK HD SDI: SMPTE372M HD SDI: BTA S-004C, SMPTE292M
SD SDI: ITU-R BT.656: 525/625
SMPTE259M: 525
EMBEDDED AUDIO: SMPTE299M, SMPTE272M
Audio output Internal speaker: 1.0 W + 1.0 W Operation environment Operating temperature: 5˚C – 35˚C (41˚F – 95˚F)
Operating humidity: 20% – 80% (non-condensing)
(Slightly variable depending on ambient conditions for installation.)
Power requirements AC 120 V/AC 220 – 240 V, 50 Hz/60 Hz, or DC 24 V (Voltage range: DC 23.3 V − DC 25.5 V) Rated current 1.15 A (AC 120 V)
0.67 A (AC 220 – 240 V)
4.8 A (DC 24 V)
External dimensions: W x H x D (excluding protrusions)
With stand / Without stand
564 x 448.6 x 243 mm (22-1/4˝ x 17-3/4˝ x 9-5/8˝) / 564 x 408 x 99 mm (22 1/4˝ x 16 1/8˝ x 4˝)
Mass
With stand / Without stand 12.0 kg (26.4 lbs) / 9.1 kg (20.0 lbs)
Accessories AC power cord, Power cord holder × 1, Screw × 2 (for power cord holder),
Circular polarizing glasses × 2 (for 3D viewing, not under warranty)
Page 16
SPECIFICATIONS (CONTINUED)
LCD Panel
Input / Output Terminals
Type 24˝ wide, active matrix TFT Effective screen size: W x H x Diagonal 518.4 x 324 x 611.3 mm (20-1/2˝ x 12-7/8˝ x 24-1/4˝) Number of pixels displayed 1920 x 1200 Number of colors displayed 16.77 million Contrast ratio (TYP.) 1000:1
DVI-D DVI-D signal input (compatible with HDCP): DVI-D connector x 1 (compatible with DDC2B) E. AUDIO 3G SDI/HD SDI/SD SDI (IN 1/L)
Digital signal input (compatible with EMBEDDED AUDIO/DUAL LINK signals):
Auto detection, 2 line, BNC connector x 2
E. AUDIO 3G SDI/HD SDI/SD SDI (IN 2/R) E. AUDIO 3G SDI/HD SDI/SD SDI
(ACTIVE OUT)
Digital signal output (compatible with EMBEDDED AUDIO signals): 2 line reclocked out, BNC connector x 2
AUDIO (IN)
Analog audio signal input: 1 line, RCA connector x 2, 500 mV (rms), high impedance
AUDIO (MONITOR OUT)
Analog audio signal input: 1 line, RCA connector x 2, 500 mV (rms)
REMOTE (MAKE/TRIGGER: 8 pins) Female: PIN1, 2, 3, 4, 5, Tally on/off, External control valid/invalid, and GND REMOTE (RS-485: 8 pins for IN/OUT) Female: TXD+, TXD-, RXD+, NC, NC, RXD-, NC, and GND
REMOTE (RS-232C: 9 pins)
Female: NC, RXD, TXD, NC, GND, NC, RTS, CTS, and NC (Note: the 7thand 8
th
terminals are connected
VideoAudio
External
controls
Page 17
SPECIFICATIONS (CONTINUED)
Video Signal Compatibility
No. Signal name
Signal format
shown in the
status display
Input terminals
E. AUDIO SDI (IN 1, IN 2)*
1
DVI-D (HDCP)
(Digital component/ Digital RGB)
SD/HD
(1.5G)
3G SDI
DUAL
LINK
MIX
1 480/60i 480/60i
2 480/59.94i 480/59.94i
3 576/50i 576/50i
4 480/60p 480/60p
5 480/59.94p 480/59.94p
6 576/50p 576/50p
7 640*480/60p 640*480/60p
8 640*480/59.94p 640*480/59.94p
9 720/60p 720/60p
10 720/59.94p 720/59.94p
11 720/50p 720/50p
12 720/30p 720/30p
13 720/29.97p 720/29.97p
14 720/25p 720/25p
15 720/24p 720/24p
16 720/23.98p 720/23.98p
17 1080/60i 1080/60i
*1Compatible with EMBEDDED AUDIO signals. *2If there is no payload ID, signal is regarded as 1080/60i.
*3If there is no payload ID, signal is regarded as 1080/59.94i. *4If there is no payload ID, signal is regarded as 1080/50i.
No. Signal name
Signal format shown in the
status display
Input terminals
E. AUDIO SDI (IN 1, IN 2)*
1
DVI-D (HDCP)
(Digital component/ Digital RGB)
SD/HD
(1.5G)
3G SDI
DUAL
LINK
MIX
18 1080/59.94i 1080/59.94i
19 1035/60i 1035/60i
20 1035/59.94i 1035/59.94i
21 1080/50i 1080/50i
22 1080/60p 1080/60p
23 1080/59.94p 1080/59.94p
24 1080/50p 1080/50p
25 1080/30p 1080/30p
26 1080/29.97p 1080/29.97p
27 1080/25p 1080/25p
28 1080/24p 1080/24p
29 1080/23.98p 1080/23.98p
30 1080/30psf 1080/30psf √ *2 √ *2 √ *2 √ *2
31 1080/29.97psf 1080/29.97psf √ *3 √ *3 √ *3 √ *3
32 1080/24psf 1080/24psf
33 1080/23.98psf 1080/23.98psf
34 1080/25psf 1080/25psf √ *4 √ *4 √ *4 √ *4
Page 18
External Dimensions
Unit: mm (inch)
Tilt stand
Advantage: ±6 degrees tilt adjustment.Benefit: Facilitates the viewing of 3D
recordings at a proper angle, which helps to ensure a more comfortable and fatigue-free working environment.
18
Page 19
MONITOR PERFORMANCE: 3G-SDI AND DUAL LINK
3G-SDI and Dual Link
Features: 3G SDI connection enables the
transfer of digital video/audio signals up to 3G/bps and allows the transfer of uncompressed
4:4:4:4 RGBA format video signals.
Advantage: Compliant with the SMPTE 424M
standard and compatible with dual link HD-SDI. Transfer speed is double that of normal HD-SDI.
Benefit: The monitor is compatible with 3G-SDI
in six formats for serial transmission of 1080p
video signals.
Benefits of the 3G-SDI Terminal
Uncompressed 1080p: Ideal for higher
quality (progressive) full HD video production.
Signal loss is eliminated.Over 100m of wiring is enabled.
Target Users of the 3G Terminal
Production companies involved with digital
cinema or high-end HD video content.
Studios using PCs for editing workflow
because the progressive signal is used for PC data.
1080p uncompressed signal users.Although demand from broadcasting
stations is low as they can only transmit up to 1080i signals currently, the terminal is attractive as a future investment.
19
Resolution Frame rate Color range Rate Level 3G-SDI mapping structure
1080
60P/50p YCbCr=4:2:2 10-bit
A
1
B
30p/25p 24p 30psF 25psF
24pSF
60i 50i
YCbCr=4:2:2
10-bit B Dual stream
12-bit
A
4
B
YCbCr=4:4:4
10-bit
A
2
B
12-bit
A
3
B
RGB
10-bit
A
2
B
12-bit
A
3
B
720p
60p/50p 30p/25p 24p
YCbCr=4:2:2 10-bit B Dual stream
YCbCr=4:4:4 10-bit A 2
RGB 10-bit A 2
Page 20
(R=G=B=0 ---Black)
(R=G=B=255---White)
Gamma
characteristics
of a monitor (γ2.2)
Gamma correction of a camera
(γ0.45)
Linear gamma
(γ=1)
Input level
Output level
Gamma Preset Mode: Basics
What is Gamma?
The correlation between input and output signal
levels for a camera or monitor is known as gamma. In the case of display monitors, for example, the relationship between the input
luminance signal and display brightness is
referred to as gamma characteristics.
Generally speaking, when the gamma curve is
linear (γ=1), reproduced images become closer
to what humans perceive with their eyes. Therefore, as gamma characteristics of display monitors tend to be darker with halftones it becomes necessary to alter the gamma curve closer to linear by sending an image signal with brighter halftones. This helps to convert colors more precisely, a process that is referred to as gamma correction.
In light of the fact that many studios are
gradually replacing CRT master monitors with next-generation master monitors, a number of organizations (e.g. EBU, ITU-R, ARIB, and others) are announcing guidelines for next­generation master (reference) monitors with
varying specifications.
Gamma Benefits of the DT-3D24G1:
Compatible with γ2.2, γ2.35 and γ2.45 as well as γ2.6 gamma preset modes for
digital cinema environments, the DT­3D24G1 enables users to calibrate optimal gamma settings according to specific operating conditions and
applications (refer to the following page
for applications of each mode).
20
Page 21
Preset Value APPLICATION
Gamma 2.2 Equivalent to CRT gamma characteristics (also the standard gamma
value for NTSC CRT monitors), this gamma value is commonly used as current TV broadcasting is based on this setting.
Gamma 2.35 Recommended by EBU-TECH 3320 (the guideline of reference monitors),
this is the gamma value for next-generation (non-CRT), high-definition
reference monitors.
Gamma 2.45 Recommended by ARIB, this is the gamma value for next-generation,
(non-CRT) high-definition reference monitors.
Gamma 2.6 The standard gamma value for digital cinema environments as the
gamma 2.6 mode is required for checking gradation in these applications.
Gamma Preset Mode: Preset Values and Applications
21
Page 22
IPS
WUXGA
Panel
IPS
WXGA
Panel
Glossary
High-Definition Serial Digital Interface or
HD-SDI (SMPTE 292M):
A video signal interface that is commonly used for HD professional digital video systems to transfer uncompressed (up to
1.485Gbps in 1080/60i) HD digital video
streams and 16-channel PCM digital audio signals along with other data such as time codes.
3G-SDI (SMPTE 424M): Also known as 3rd
generation SDI with 3Gbps data transmission
capability, it transmits up to 1080/60p signals
or 4:4:4 sampling via a single BNC cable at
2.97Gbps. As the need for enhanced quality HD video production (for Cinema or Blu-ray) increases, the importance of a higher speed video signal interface has grown exponentially.
Dual Link SDI (HD-SDI Dual Link, SMPTE
372M): A serial digital interface standard capable of transferring HD-SDI (SMPTE 292M)1920 x 1080 / 50P, 60P / 4:2:2 / 10-bit or 1920 x 1080 / 24P, 30P, 50I, 60I / 4:4:4 / 10-bit, 12-bit parallel signals as HD-SDI 2-ch
video signals via two coaxial cable at
2.970Gbps.
LTC (Longitudinal Time Code ) and VITC
(Vertical Interval Time Code): Generally speaking, both LTC and VITC are used simultaneously for time code signals recorded onto recording media. LTC is used as the address signal recorded onto
longitudinal audio tracks. However, for slow-speed
playback, the LTC signal is switched to the VITC signal, as LTC cannot be read at certain playback speeds.
ITU-709 (ITU-R BT.709): ITU-R Recommendation
BT.709, a.k.a. Rec. 709 or BT.709 is the
specification for the high-definition television
format proposed by ITU (International Telecommunications Union-Radio Communications Sector).
EBU-TECH 3320: The guideline issued by the
EBU (Europe Broadcast Union) that defines the
specifications for reference monitors.
ARIB (Association of Radio Industries and
Businesses): An organization concerned with Japanese integration of telecommunications and broadcasting, as well as the promotion of businesses using radio waves in general.ARIB
specifies technical specifications related to
communications, transmission and reception equipment.
22
Loading...