Osprey 240e/450e User Guide

 

 

Sharp Motion

The Sharp Motion option makes detail in motion areas sharper, but at

 

the expense of somewhat jagged diagonal edges.

 

 

Test Mode

The Test Mode option causes the motion adaptive algorithm to enter a

 

test mode that displays motion pixels as bright green dots. The dots are

 

mainly along edges that are in motion, but if the motion threshold is set

 

too high there may also be a random distribution of green dots caused

 

by pixel jitter and instability of the video signal. The extensiveness of the

 

green areas vary according to the settings of the other adjust controls.

 

Test mode is always automatically exited when you exit the Adjust

 

dialog.

 

In Test Mode, with the Sharp algorithm green speckles are on alternate

 

lines only, and with the Smooth algorithm they are on all lines.

 

 

Restore Defaults

Click this button to restore the default settings.

 

 

Help

Click Help to access the user guide.

 

 

Close

Click Close to close the window.

 

 

If your video format results in exact 2:1 or 4:1 vertical scaling for a particular pin, then all the video comes from one field. This is the case for uncropped NTSC CIF (320x240) or QCIF (160

x120). It may be the case for special cases of cropped video as well.

In the PostProcessing sequence as currently implemented, the sharp motion adaptive deinterlacing algorithm has no effect on single-field streams, since it alters only the field that these streams do not use. The smooth algorithm operates on both fields and may have

adetectable blurring effect on areas of motion. (Sharp and smooth are set in the Adjusts subdialog.)

Inverse telecine, if enabled, does not affect the individual fields for a one-field pin; however, if the pin’s frame rate is 24, the driver detects and removes the frames that are repeats. If you are streaming multiple pins, and the exact single-field special scaling case holds true for one pin but not another, different processing is applied to the two pins.

When Auto mode is selected, some kinds of content cause the driver to frequently switch between Inverse Telecine and Motion Adaptive processing. Content such as title sequences and commercials are often telecine, but cuts between scenes generally break the telecine sequence, forcing the driver to resynchronize. It takes it a number of frames to lock on to the new sequence. The driver drops back to the Motion Adaptive algorithm as soon as it becomes aware that telecine sync has been lost. However, it may take it several frames to discover that this has happened; these frames are not correctly deinterlaced.

You should decide whether to use Auto, Inverse Telecine, or Motion Adaptive mode depending on the type of content you expect.

If the content is consistently telecine, then either Auto or Inverse Telecine is recommended for perfect recovery of the original progressive format.

If the content is telecine with post-detelecine video-based editing, Auto mode results in the best overall quality – but several frames may not be deinterlaced every time the pull down phase sequence has to be relocked.

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ViewCast Osprey-240e, Osprey-450e manual Sharp Motion, Test Mode, Restore Defaults, Close

Osprey-450e, Osprey-240e specifications

The ViewCast Osprey series, particularly the Osprey-240e and Osprey-450e, represents a significant advancement in the field of video capture and encoding technology. These high-performance video capture cards are designed to meet the growing demands of professional broadcast environments, video production, and live streaming applications.

The Osprey-240e offers a compact design while delivering excellent performance. It is equipped with dual channel input capabilities, allowing users to capture multiple streams simultaneously. This feature is particularly beneficial for broadcasters and content creators looking to streamline their workflows. The Osprey-240e supports a variety of input formats including SDI and HDMI, ensuring compatibility with a wide range of video sources. Its robust encoding capabilities allow for real-time video streaming in HD resolution, making it suitable for live events, webinars, and other digital content delivery applications.

On the other hand, the Osprey-450e takes video capture to the next level with enhanced capabilities. It supports up to four channels of video input, making it an ideal solution for multi-camera setups. The Osprey-450e also boasts advanced encoding technologies that facilitate high-quality video compression without sacrificing performance. This model is particularly well-suited for enterprise-level applications where high-definition video quality is paramount. Users can experience lower latency and improved encoding efficiency, resulting in smoother viewing experiences for end-users.

Both models feature powerful drivers and software support that integrate seamlessly with a variety of video production and streaming applications. The Osprey series is designed with user-friendly interfaces, making it accessible for both seasoned professionals and newcomers alike. The cards are also compatible with many of the industry-standard software solutions, enabling users to harness the full potential of their video content.

These capture cards also prioritize reliability and durability, ensuring long operational life even under demanding conditions. Their efficient thermal management systems keep components cool during extended use, thereby enhancing performance consistency.

In summary, the ViewCast Osprey-240e and Osprey-450e deliver impressive features tailored for a range of video applications. Their support for multiple input channels, advanced encoding technologies, and strong software compatibility make them invaluable tools in the modern digital media landscape, solidifying their reputation among content creators and broadcasters alike.