What is it?
3G/HD/SD squeeze back keyer.
Reason to choose it...
Because you'll get the highest quality picture squeeze from this dedicated product - perfect for those demanding applications involving moving text. It uses sub-pixel processing, an excellent de-interlacer and an advanced algorithm to ensure extremely smooth movement from one size to another. With eight easy-to-edit example scenes included, sophisticated moves can easily be pre-built and then triggered manually or via automation systems. Watch the video to see the sort of things that LKEY-SQZ can do.
Squeezing the end credits to preview the next programme, squeezing a presenter to allow room for additional graphic material or picture-in-picture effects. See who's using it.
Try out the LKEY-SQZ VisionWeb demo (opens in new window) – you'll see how easy it is to operate LKEY-SQZ from your web browser, while exploring the full functionality of the product.
Got a question?
We would be very happy to answer any questions you've got about the LKEY-SQZ. Either send us an e-mail or get an immediate response by speaking to us now on our Live Chat...
- Main features
- What outputs do I get?
- What do I order?
- Who's using it?
- Video demo
- Feature-packed squeeze back keyer: unique way to resize or reposition programme for another layer of video to be displayed
- Use it with any source: works with 3Gb/s, HD and SD (31 video standards in total)
- Includes simple DVE: can resize video both horizontally and vertically and reposition it on the screen
- Easy to add additional material: graphics or text generated by external device can be keyed on top of and around the squeezed picture
- Provides highest quality picture squeeze: uses sub-pixel processing, excellent de-interlacer and advanced algorithm for extremely smooth movement from one size to another
- Flexible key sources: choice of external key or self key methods
- Overrule the key signal: use the internal masks to select just part of a key or to extend the key size
- Flexible fading: fade the squeeze or key on and off, or fade the programme to black
- Correct timing errors automatically: includes line synchroniser on each input timed to an analogue reference
- Perform a sequence of operations using full timeline control of events: including squeeze position, size, rate of movement and key fade on/off rate
- Inputs and outputs accessed by using an appropriate rear module (dual height RM77)
- Protect your output: get relay bypass protection of the background or picture-in-picture video
- Housed in Indigo rack frames - mix with any interface products
- Space-saving: 100mm x 266mm module allows six LKEY-SQZ in 2U (three in 1U and one in desk top box)
- Flexible control: board edge, GPI, frame integrated control panel, VisionPanel remote control panel, SBB-4 smart button box, SNMP, ASCII and JSON protocols or the web browser-based VisionWeb Control
- Five year warranty (with product registration)
- This product is available to either purchase or hire, with hire pricing typically 6% of list price per week (with one week minimum hire period and £200 minimum charge)
A unique solution to picture squeezing
LKEY-SQZ is a unique product offering the highest quality picture squeeze and picture-in-picture effects combined with flexible keying – all in a low-cost modular product.
Working with 31 different video standards, this squeeze back keyer is ideal for any applications where the programme needs to be resized or repositioned for another layer of video to be displayed – such as squeezing the end credits to preview the next programme, squeezing a presenter to allow room for additional graphic material, or picture-in-picture type applications such as news interviews.
You'll get the highest quality picture squeeze from this dedicated product. With eight example scenes included, sophisticated moves can easily be pre-built and then triggered manually or via automation systems.
Squeezing the picture
By including a simple DVE, LKEY-SQZ can smoothly resize the main video both horizontally and vertically, reposition it on the screen and put it inside another input or coloured border. The border is a moveable rectangle filled by a specific matte generator which lies behind the squeezed video in the layering and is most useful for picture-in-picture applications.
Graphics or text generated by an external device can then be keyed on top of and around the squeezed picture, with the option of filling the background area with a matte colour after the video has been squeezed. The video can transition back to full size or to another size or position as required.
The highest quality picture squeeze
It's the quality of the picture squeeze that makes LKEY-SQZ special. It uses sub-pixel processing, an excellent de-interlacer and an advanced algorithm to ensure extremely smooth movement from one size to another. This is particularly important on moving text which can be very demanding – LKEY-SQZ will ensure there is no distortion to the text during the picture squeeze.
It is also possible to adjust the filtering used on the squeezed image to optimise the effect, trading image sharpness against aliasing artefacts.
LKEY-SQZ allows the key to be generated in two different ways. External Key mode uses the luminance of the signal on the Key/Video B input to key a graphic on the Video A input over the background, while Self Key mode uses the luminance value in the graphic on Video A input to generate the key. LKEY-SQZ offers both additive and multiplicative linear keying, allowing you to choose a method to suit the graphics.
Key gain, offset and opacity controls allow the intensity of the key to be adjusted.
Two internally-generated rectangular masks – adjustable in position and size – can be used to force areas of video which may otherwise be hidden by the key layer. Adjustable edge softness is useful for blending between masked and unmasked areas for a more natural-looking mask edge.
The key layer, squeezed video layer, bypass layer and border layer can each be faded up and down under timeline control. LKEY-SQZ can also be used to fade the complete programme to black if required.
Timing your signal
Line synchronisers will correct incoming signals up to one line apart in timing, with the output video timed to either one of the inputs or to an external SD Black and Burst or HD tri-level syncs analogue reference.
You can easily compensate for mistimed sources elsewhere in your system by adjusting the output timing relative to the reference through an entire frame using horizontal and vertical settings.
Select your output audio
LKEY-SQZ is easy to use in a system with embedded audio. The audio selected for embedding into the output video can be taken from any of the inputs.
Alternatively all ancillary data including embedded audio can be blanked.
Working with scenes and timeline control
LKEY-SQZ can perform a sequence of operations – known as a 'scene' – using full timeline control of events. Timelines are a key part of LKEY-SQZ operation, with a timeline having five segments (delay, in, dwell, out, wait) and starting when it is triggered. Events can be timed in relation to each other as well as to the start of the scene.
With eight example scenes included, sophisticated moves can easily be pre-built and then triggered manually or via automation systems. The example scenes can be changed by editing nine XML files. The files themselves are simple because each file describes only one element and they can be edited using a basic text editor.
The five layers on LKEY-SQZ are background, border, squeezed video, bypass path and downstream keyer, with layer priorities set using VisionWeb. Squeeze position, size, rate of movement and key fade rate can all be adjusted. The timeline XML files can be uploaded directly into the LKEY-SQZ board via FTP thanks to the dedicated Ethernet connector on the RM77 rear module.
Control options for LKEY-SQZ include board edge switches, an integrated control panel on the front of the frame, the VisionPanel remote control panel, the SBB-4 smart button box, SNMP or the VisionWeb web browser control. Try the LKEY-SQZ VisionWeb demo...
GPIs can be used to take a scene in or out and to trigger up to eight of the presets. 40 presets are available in total and are ideal for holding information on the static state of the device such as layering priority and key gains.
Save rack space - and protect your output
LKEY-SQZ is a 100mm x 266mm board which fits in the Indigo frames (available in 2U, 1U and desk top box sizes) and saves you rack space by allowing up to six squeeze back keyers to be housed in 2U.
The Video A, Key/Video B, Squeeze Video and analogue reference inputs, one main output and one auxiliary output are accessed by using the dual height RM77 frame rear module. The RM77 additionally provides relay bypass protection of the squeeze video on power failure or board malfunction or removal.
Standard Crystal Vision module 266mm x 100mm
Power consumption: 12 Watts
Three 3Gb/s, HD or SD inputs (Video A, Key/Video B and Squeeze video)
270Mb/s or 1.5Gb/s or 3Gb/s serial compliant to SMPTE 259, SMPTE 292-1 and SMPTE 424/425-A
Works with the following video standards: 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60, 1080PsF23.98, 1080PsF24, 1080PsF25, 1080PsF29.97, 1080PsF30, 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 2048x1080p23.98*, 2048x1080p24*, 2048x1080p25*, 2048x1080p29.97*, 2048x1080p30*, 2048x1080PsF23.98*, 2048x1080PsF24*, 2048x1080PsF25*, 2048x1080PsF29.97*, 2048x1080PsF30*, 625i and 525i (*= YUV 4:2:2 10 bit)
3Gb/s cable equalisation up to 80m using Belden 1694A. HD cable equalisation up to 140m with Belden 1694A or equivalent (approx. 100m with Belden 8281). SD cable equalisation >200m Belden 8281 or equivalent
Input return loss: -15dB for 50MHz to 1.5GHz
One main output and one auxiliary output accessed by using RM77 frame rear module. Relay bypass protection of squeeze video
270Mb/s or 1.5Gb/s or 3Gb/s serial compliant to SMPTE 259, SMPTE 292-1 and SMPTE 424/425-A
Output frame rate same as input frame rate
Both main and auxiliary outputs can be used to show Output Video, Output Key, Squeeze Input, Video A Input, Key/Mask/Video B Input, FG Matte, BG Matte or Border Matte
DELAY THROUGH BOARD
SD: 85us min
HD: 18us min
3Gb/s: 10us min
Reference timing can be selected to come from any of the video inputs or from SD Black and Burst or HD tri-level syncs. 3Gb/s, HD or SD source can use either type of reference. When cross-locking it is necessary for both the video input and reference to share the same frame rate
A line synchroniser on each input will automatically synchronise sources up to one line apart in timing for automatic correction of timing errors
Compensate for mistimed sources elsewhere in system by adjusting output timing relative to the reference through an entire frame using horizontal and vertical settings
Amplitude of syncs 150mV to 600mV
Link on PCB selects 75 ohm termination or high impedance
The delayed squeeze input is a non-squeezed version of the squeeze input which is delayed by the same amount as the squeezed video, allowing a switch away from a full-screen squeezed image to a completely unprocessed signal without a timing jump
LKEY-SQZ includes simple DVE that can smoothly resize video horizontally and vertically and reposition it on the screen allowing another layer of video to be displayed
Can put video inside another input or coloured border (see BORDER section)
Can transition back to full size or to another size or position as required
Top quality video squeeze using smooth sub-pixel processing, motion and edge adaptive de-interlacer and advanced re-interlacing algorithm
Graphics or text generated by external device can be keyed on top of and around the squeezed picture
External Key mode uses luminance of signal on the Key/Video B input to key a graphic on the Video A input over the background, while Self Key mode uses luminance value in the graphic on Video A input to generate the key
Key processing can be additive or multiplicative
External Key controls: Enable, Multiply/Additive, Invert, Min Clip, Max Clip
Self Key controls: Enable, Multiply/Additive, Invert, Min Clip, Max Clip
The key can be made to have a semi-transparent effect by using areas of grey in the external key signal, by using the Min and Max Clip controls or by using the fade controls
Keyer FG control selects what is used as the fill when an external or self key is enabled
Keyer crop controls define an area for which an enabled external or self key is shown
It is possible to adjust the filtering used on the squeezed image to optimise the effect, trading image sharpness against aliasing artefacts
H and V controls adjust how sharp the squeezed image looks, with a softer picture causing less flickering in moving areas of fine detail
The de-interlacing filters can be used to reduce flickering in the image in areas of fine detail due to de-interlacing and re-interlacing processes, following image scaling changes
INTERNAL MASK GENERATOR
Masks can be used to force areas of background or foreground video which may otherwise be hidden by a key layer
Two internal masks available (Foreground and Background) which can be turned on or off, inverted to force keying outside an area and adjusted in position and size. Masks have edge softness controls to prevent hard edge on mask, with each edge individually selectable
Foreground and Background mask controls: Enable, Invert, Mask Window: Left/Right/Top/Bottom edges adjustable from 0 to 100% (to set mask size and position), Mask Softness: Left/Right/Top/Bottom edges adjustable from 0 to 100%
The External Key signal can also be enabled as an External Mask, to force the background through a self key. Controls are: Enable, Multiply/Additive, Invert, Min Clip, Max Clip
INTERNAL MATTE GENERATOR
Three separate matte generators available
Background matte is one option for the background
Foreground matte is one option for the keyed foreground video source, allowing a selectable flat colour to be put in the keyed areas
Border matte defines the colour used for the border layer – a rectangle that can be moved, scaled and faded on the basis of the scene timeline
The border is a moveable rectangle filled by a specific matte generator which lies behind the squeezed video in the layering. The typical use will be to size and move this in combination with the squeezed video to provide a border that visually separates the squeezed video from the background, such as for picture-in-picture applications
Each layer can be faded up and down under timeline control: Key layer, Squeezed video layer, Bypass layer and Border layer (NB. Background layer cannot be faded)
Fade programme to black on main and auxiliary outputs
Embedded audio is taken from any chosen input, allowing selection of audio from either the Video A, Video B/Key or Squeeze Video input to output with the final video
All ancillary data including embedded audio can be blanked
SCENES AND TIMELINE CONTROL
Timeline control is used to perform a sequence of operations (a 'scene') relative to a start signal. Multiple scenes can be programmed, allowing quick selection of different moves. Events can be timed in relation to each other and not just the start of the scene
LKEY-SQZ has 16 built-in example scenes. Scenes 9-16 are a carbon copy of scenes 1-8 and provide a backup of the original. Scenes 9-16 will remain as default until a user changes them and will not reflect any changes made to scenes 1-8. See pages four and five for description of built-in scenes
Possible objects in each scene are bypass (top, hides everything else if faded up), squeezed video, border, keyed video and background (anything appears on top of this)
Layering control is set using VisionWeb, with layer 1 appearing in front. When set to 'Squeeze over keyer', object priorities are: 1. Bypass; 2. Squeeze; 3. Border; 4. Keyed video; 5. Background. When set to 'Keyer over squeeze', object priorities are: 1. Keyed video; 2. Bypass; 3. Squeeze; 4. Border; 5. Background
Example scenes can be changed by editing nine XML files. The files themselves are simple because each file describes only one element and they can be edited using a basic text editor. The XML files define the priority and triggering relationships between the layers, the timeline for each layer (in, dwell and out times and the size, position and alpha parameters for each object at each static state) and the colour, size and default position of the unprocessed object
A timeline consists of five segments: delay, in, dwell, out, wait. Each segment can have a time, defined in milliseconds from zero to one hour. If dwell time is not defined it is treated as infinite and timeline will stay in dwell state until scene is taken out or until a triggerout event occurs
There are parameter values (scale, position and alpha) at each static segment (delay, dwell and wait), with the position and scaling of the object defined in percentages of the screen size for position and default size for scaling. The value of parameters during 'in' and 'out' is linear ramp between the relevant static values
Squeeze setup on VisionWeb allows the effect to be previewed in a static way, allowing settings to be tested before they are added to the XML files
FTP timeline files directly into LKEY-SQZ board using dedicated Ethernet connector on RM77 rear module
The current board settings can be saved in one of 40 locations to be recalled as required
Presets store the entire state, including the selected scene, and are ideal for holding information on the static state of the device such as layering priority and key gains
GPI INPUT LEVELS
Active: pull to ground, pulled up to +5V through 10 kohm
Six GPI inputs
Three are used for the recall of up to eight presets
One is used to take the scene in
One is used to take the scene out
One acts as a tally when the scene is in
Intuitive board edge interface with two select buttons, shaft encoder and ten character alphanumeric display
VisionWeb Control is available via the web server on the frame and allows operation using a standard web browser on a PC or tablet
SNMP monitoring and control available as a frame option
Control using ASCII and JSON protocols
Control from integrated control panel on Indigo 1AE-DP frame
Control from VisionPanel 3U remote panel
SBB-4 smart button box connects to the frame via Ethernet and provides four programmable LCD switches (which are configured for each order). The SBB-4 uses information from VisionWeb for settings. Uses Power over Ethernet so must be used with PoE enabled switch
What outputs do I get?
RM77 rear module label and connections
More about the RM77
Connectors: 6 BNCs, 9-way standard density D-Type and RJ45 (with relay bypass)
Frame slots used: 2
Boards in 2U: 6
Boards in 1U: 3
Boards in desk top box: 1
Why use it: It's the only rear module for LKEY-SQZ
Also used for: No other boards
For more visual technical information, download the LKEY-SQZ block diagram.
What do I order?
First you need the 'double decker' 100mm x 266mm module...
- 3G/HD/SD squeeze back keyer
Next choose your frame size and power supplies - from 2U to desk top box...
- Indigo 2SE
- CoolFlow 2U frame with power supply redundancy and active front panel featuring smart CPU for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC
- Indigo 1AE-DP
- 1U frame with power supply redundancy and active front panel featuring smart CPU and integrated control panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC
- Indigo 1SE-DP
- 1U frame with power supply redundancy and active front panel featuring smart CPU for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC
- Indigo DT
- Desk top box with passive front panel for up to two Crystal Vision modules. Includes fixed power supply
- Indigo DTSE
- Desk top box with active front panel featuring smart CPU for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC
- 160 Watts power supply for Indigo 2SE frame. Requires either one PSU-160i (no redundancy) or two PSU-160i if power supply redundancy is required
You need a rear module to access your inputs and outputs...
- Two slot frame rear module. Allows six boards in 2U, three in 1U and one in desk top box. Gives access to Video A, Key/Video B and Squeeze Video inputs with one main output and one auxiliary output
Finally - control. Use board edge switches, the integrated control panel if you've selected the 'AE' frame, a web browser running the free VisionWeb Control (included within the frame software), or alternatively order one of the items below...
- 3U Ethernet remote control panel with touch screen
- Smart button box with four programmable LCD switches. It is powered by PoE (Power over Ethernet) and therefore needs to be connected to a PoE enabled switch
- SNMP monitoring and control available as a frame option
Who's using it?
Users of the LKEY-SQZ squeeze back keyer include...
- What does it cost? Request a quote for LKEY-SQZ...
- Want to hire instead? Request a hire quote...
- What controls has it got? Try out the VisionWeb demo for LKEY-SQZ...
- Get the LKEY-SQZ SNMP MIB by signing up for the Registered Area now
- The LKEY-SQZ module needs to be housed in a rack frame - look at the frame options
- Bought Crystal Vision products in the last 60 days? Register these products now to upgrade your standard three year warranty to five years
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Not sure which keyer is best for your application? Have a look at our keyers comparison chart to help you make a decision...
Crystal Vision Ltd. is registered in England number 03139895. Registered office: Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.
Tel: +44 (0)1223 497049 Fax: +44 (0)1223 497059 E-mail: firstname.lastname@example.org