Omnitek XR

in Video Test & Measurement

XR is designed specifically for colorists, post-production editors, and digital intermediates working with very high resolution HDTV and Dual-Link images. In 2003, OmniTek produced the world’s first native Dual-Link waveform monitor, and the XR raises the performance of this system to a new standard. Recent additions include support for the XYZ colour space in dual-link mode.

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Waveform Monitor & Data Analyzer

OmniTek XR signal processing technology gives "extreme resolution" waveform and vectorscope displays. The frequency response at 10 bits per pixel is flat to 30MHz and 256 times oversampling is used to ensure the most accurate monitoring.

Waveform Displays

Graphics display with 16 channel embedded audio PPM
and phase; Mini-pic proxy; Closed-caption decode; Video
status; Pseudo-composite waveform; Event log;
Vectorscope; Touch Screen Keys

Novel waveform generation algorithms give high-quality, user-adjustable displays. Full 1024-pixel high waveforms may be generated, giving true 10-bit resolution.Arbitrary combinations of components may be displayed simultaneously.

A unique region-of-interest control allows continuously-variable H and V magnification and selection of video lines. This enables the user to accurately select different areas of the image to analyse. The zoom works smoothly from a few pixels to a full line, 2 lines, 1 field through to full frame displays. The XR also features low-pass, differential and “bowtie” filters, and can generate psuedo-composite SD waveform displays from HD or SD sources in real time.

Vectorscope

The XR provides a high-resolution vectorscope display, available with 75% or 100% graticule and luma-masking capability. The vectorscope is fully scalable and may also operate on the selected region-of-interest. Graticules are automatically adjusted for the appropriate 601 or 709 colour matrix.

Colour Gamut Display

Colour gamut is monitored in each of the different colour spaces. The results are displayed on a custom gamut display, which indicates the total excursion of the signals and also the percentage of pixels that are outside recommended limits (as specified, for example, in EBU Recommendation 103).

Real-Time Histogram

The XR system provides unique real-time histogram displays in each of the colour spaces it supports. For each display, the mean value is also shown. These displays are invaluable for accurate colour analysis.

Dual-Link Option

This option enables 4:4:4 RGB/YCbCr/XYZ inputs and "2k" format images to be monitored. The option also includes programmable input look-up tables that enable real-time conversion of logarithmic or other non-linear data inputs. The system also provides real-time output of 4:2:2 data from 4:4:4 dual-link input or 4:4:4 output from 4:2:2 input.

XYZ Support

The Dual-Link option also adds support for XYZ format – both in the colour spaces for which information is displayed, and in the formats in which video can be output.

Video Status Display

Input video signals are continuously monitored for errors and changes of state. Transport stream faults such as mis-timed TRS words, EDH, CRC, LIN and ANC checksum errors are all reported. The video streams are further examined to ensure pixels conform to valid YCbCr, RGB and PAL/NTSC composite ranges, and structures such as active format descriptions and RP186/ARD video indexes are identified and interpreted. Monochrome, freeze and black video are also detected. Errors are highlighted both in the video status window and in the pixel data display.

Event Logs

All the video and embedded audio parameters monitored by the XR may be entered into an XML-format event log file, with time-stamping from input timecode or the PC internal clock. In addition, events may be configured to trigger alarms or as SNMP network traps. Thresholds and timeouts for each monitored parameter are adjustable. The XR further uses a ‘traffic light’-type system to indicate whether sessions are free from error or errors have occurred.

Pixel Data Display

The pixel data display shows the exact values present on the SDI input in decimal, hex, or binary format. The different display colours indicate the type of video segment: active picture, blanking, ANC packets, TRS words etc. A red bar indicates an error has been detected at this pixel value.

The display can be extended to provide automatic interpretation of TRS and ANC packets detected in the input video stream. This includes packet types such as EDH/CRC, embedded audio, SMPTE 352M video payload ID, and RP188 ANC timecode. In dual-link input formats, the RGB and XYZ colour space data is assembled into to full pixel values. It is also possible for users to install XML-format descriptor files, for decoding custom ANC packets.

Audio Monitoring Options

Several audio monitoring options are available for the XR system. The Standard Audio option provides PPM displays for 16 channels of embedded audio, plus input group status. The Advanced Audio option provides 16-channel embedded audio PPMs plus group status, Lissajous and audio phase meter displays. These indicate if any stereo pair contains a mono, inverted mono, or uncorrelated signal. The AES parameters of all groups are presented on the Audio Status display, with per-channel peak-hold, overload, and silence detection. The PPM displays have user-adjustable meter ballistics, the option of surround-sound view, and a choice of graticules including dBFS, DIN, EBU, BBC, and Scandinavian options. A user-selectable channel pair may be routed to the PC audio output for easy monitoring. (Note that 1RU chassis require an external audio output connection.)

Dolby-E and AES Support

The Dolby-E option, when used in conjunction with the Advanced Audio option, provides PPM displays, frame timing checks, and a complete metadata decode display for Dolby-E inputs.

The External Audio option, which may be ordered together with Standard or Advanced options, provides a second PCI card with support for up to 16 channels of external AES/EBU digital audio.

Audio/Video/Reference Delay Measurements

The XR is able to measure SDI loop delay through an external processing path, for both video and embedded audio signals. In addition, the XR can also measure relative audio/video "lip-sync" delay when displaying the standard OmniTek full-motion test sequence. XR can also measure the time delay between SDI input signals and the analog sync reference, between different SDI inputs and between different channels.

Video Proxy

Video proxy in pulse-cross mode

A high-resolution real-time proxy of the SDI input or signal generator source is provided. This ‘Mini-Pic’ has a real-time update and displays SD images at full resolution and full frame rate. HD images may be displayed at ½ resolution. A “pulse-cross” function allows viewing of the contents of the H & V blanking areas. Timing cursors can be overlaid on the proxy, and there are “burn-in” windows for timecodes (see below). The proxy can also display closed captions and teletext subtitles from OP-47, EIA 608 and 708 closed-caption decoder modules.

Closed Caption and Teletext Subtitle Decoding

The XR is capable of decoding Line 21, EIA-608-A, and EIA-708-B closed caption data and OP-47 teletext subtitles from SD or HD input signals. The decoded captions may be "burned in" to the mini-pic proxy window, listed in the closed-caption window and/or saved to an XML-format log file for archival purposes. The EIA-708-B support is provided through an optional extra decoding package. This package checks the validity of all the 708 data embedded in an SDI signals. It also supports the display of 708 windowing commands.

Where required, the Mini-Pic can display the timecode associated with the video, positioned to the left, in the centre or to the right at the top, at the bottom or in the middle of the display The XR is able to read and display VITC and ATC timecodes. When fitted with the optional LTC reader, it can also display LTC timecodes.

Digital Signal Generation/Motion Capture

Frame Images

The PC internal hard disk can store thousands of full-frame images, which can be read by the generator in any standard PC file format (.bmp, .jpg, .tif, .gif, .avi, .wmv, .yuv, .yuv10, .dpx, etc.). The images can be re-sized to fit the current video format, and the correct colour matrix is used when converting from RGB (i.e. BT.601 or BT.709).

Full-Motion Capture & Playback

The XR contains a real-time uncompressed video capture and playout system capable of storing up to 45 seconds of SD, or 7 seconds of HD source material. Image sequences may be loaded as individual frames, .avi or .wmv files, or captured from the live SDI input.

Playlists

The XR can play out a user-defined sequence of images or motion segments. Each image has programmable duration, and can have different embedded audio tones or engineering settings such as gain or noise. The playlist can be executed in a continuous loop or as a single sequence, and is fully remote-controlled via SNMP network commands.

System Details

The OmniTek XR is a PC-based system, comprising a state-of-the-art real time signal processing PCI plug-in card plus application software running under the Microsoft® Windows® 2000 or XP operating systems.

OmniTek can supply the XR system as card-plus-software only, for the user to install in the PC system of their choice, or alternatively XR can be supplied pre-installed in a 1RU rackmount PC chassis, portable PC with integrated screen, or “Magma” laptop expansion chassis.

The application may be used either in a standard “Windows” mode or in a “full screen” mode in which a selection of windows are neatly tiled to give a clear, uncluttered display. All windows are adjustable in size and colour on the graphics display. The user may also customize the selection and position of windows shown in “full screen” displays.?To maximize the resolution and clarity of the display, the XR can drive up to two DVI or VGA monitors at resolutions of 1920 x1200 and beyond.

The XR features two SDI outputs and an analog component video output for monitoring purposes. Regions of the image with any gamut error may be flashed on the output displays. In addition, cursors and graticules may be shown.

There are a range of options available with the XR system – please contact your local OmniTek dealer for more information.
 

PCI CARD CONNECTIONS
WARRANTY
OmniTek systems are warranted for one year from date of purchase. This includes all feature upgrades and bug fixes to the application software, plus repair or replacement of the hardware (at the discretion of OmniTek). Extended warranty agreements are also available, please consult your local OmniTek dealer.