Browse Prior Art Database

Software Motion Video using Video and Text

IP.com Disclosure Number: IPCOM000116808D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

DeCarmo, L: AUTHOR [+5]

Abstract

Disclosed is a method for combining text and software motion video in real time, as two digital streams of information, to be displayed in a software motion video. A video-overlay multi-track filter may be used to combine the two streams of information.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 81% of the total text.

Software Motion Video using Video and Text

      Disclosed is a method for combining text and software motion
video in real time, as two digital streams of information, to be
displayed in a software motion video.  A video-overlay multi-track
filter may be used to combine the two streams of information.

      Text is streamed from a keyed file containing the frame number,
frame duration, and the text to be displayed on the screen.  This
information is provided as input into the streaming architecture of
Multi-Media Presentation Manager* (MMPM/2*), Version 2, to be
combined in the presentation space, from which a software motion
video is played.  The video is overlaid with the text as the keyed
frame is decompressed.

      Alternately, the text is compressed to be displayed as white
text on a black background.  This image is ORed with video frames to
produce a video text overlay.  In a second alternate method, the
image of white text on a black background is inverted to produce
black text on a white background, and the resulting image is XORed
with the video frames.

      A text stream may be included with digital video and audio
information.  When the text stream is included in the file, either
along with, or instead of, the audio stream, the text can be streamed
into a text-to-speech convertor for audio processing, reducing the
size of the file.  With this method, two digital streams of
information are subsequently split for presentation to the use...