
©Calibre UK Limited Issue 1.41 08 August 2011, W: www.calibreuk.com
INTRODUCTION
General Introduction
HQView-4xx is a very flexible image scaler developed specifically for driving large screen displays and
multiple screen applications from video or graphics sources.
HQView-4xx features state of the art digital image processor which provides market leading HD& SD
per-pixel multiple Iow-angle motion-adaptive de-interlacing and automatic film pull-down correction for
3:2 and 2:2, significantly outperforming the capabilities of benchmark competitor products.
HQView-4xx features excellent image processing algorithms for the very best scaling, film and video
noise reduction and MPEG artefact reduction.
HQView-4xx uses a very flexible high performance video input front end including true component video
support in analog YPbPr and RGBS formats and HDSDI/SDI digital formats as well as composite
(CVBS) and YC/S-Video inputs. A very high performance video decoder is utilised with 4x oversampling
and 3D Y/C separation for outstanding video image clarity. HDMI and DVI video with HDCP encryption
is also supported, as are computer graphics inputs in SVGA analogue and HDMI/DVI digital formats.
The output format can be set to I/O Lock mode where it locks the output frame rate to the input frame
rate dynamically without frame rate conversion so as to reduce system latency, or it can be set to a fixed
output frame rate for driving basic screens which are not 50Hz-compatible. A Low latency mode with
non-motion adaptive reduced processing is available to further reduce latency.
Outputs are available in VGA analog and DVI digital formats which are useable simultaneously so that
one output can drive the screen while the other runs a local monitor. Note that if an HDCP encrypted
signal is connected to the HDMI or DVI input, the DVI output signal will be similarly HDCP encrypted and
the VGA analog output will be disabled.
HQView-4xxV2 supports Pan, Zoom and Tilt to select a part of the input image, fill the screen and pan
within it.
HQView-4xx can be operated with different firmware. At time of issuing this document three firmware
options are available. Each firmware provides different feature sets controlled through the OSD. Thus,
the OSD menu systems of the firmware options may deviate from each other. Special emphasize is
given in the discussion of the OSD menu system in the corresponding chapters.
In the basic configuration HQView-400S used for single display installations Picture in Picture
functionality is provided.
The next stage is the HQView-410 for multi screen or multi projector installations. Picture in Picture is
replaced by Auto Zoom and Edge Blend. Edge Blend allows to electronically reduce the brightness level
of certain image regions to match the brightness of overlapping areas. Auto Zoom automatically crops
and zooms the input video image to display the section of the total image on the corresponding projector
or screen. Embedded warp is provided allowing to adjust the image in a projection scenario to match a
rotated, tilted or curved screen.
HQView-420 adds free form warp capability for certain non-flat screens in a multi projector installation.
Warp maps created with the PC tool “Warp Generator” can be uploaded into HQView-420 and
processed accordingly.
HQView-400DC is a specialized version of HQView-400S targeted for the digital cinema market. It
includes embedded warp and defaults to settings which are more appropriate to drive cinema
projectors.
System control is via an OSD controlled by keys on the front panel or through the inbuilt TCP/IP web
server.