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Date: Thu, 07 Nov 1996 19:23:06 GMTServer: NCSA/1.5Content-type: text/htmlLast-modified: Mon, 09 Sep 1996 16:40:32 GMTContent-length: 3529<HTML><HEAD><TITLE>View Morphing (by Steve Seitz)</TITLE></HEAD><BODY><H1> View Morphing </H1><H3>Investigators:<!WA0><!WA0><!WA0><!WA0><!WA0><!WA0><!WA0><A HREF="http://www.cs.wisc.edu/~seitz/seitz.html">Steve Seitz</A>,<!WA1><!WA1><!WA1><!WA1><!WA1><!WA1><!WA1><A HREF="http://www.cs.wisc.edu/~dyer/dyer.html"> Chuck Dyer</A></H3><B> Related Publications: </B>  <BR> <!WA2><!WA2><!WA2><!WA2><!WA2><!WA2><!WA2><A HREF="ftp://ftp.cs.wisc.edu/computer-vision/abstracts.html#sigg96-seitz"><I>View Morphing </I></A> --- to appear in<!WA3><!WA3><!WA3><!WA3><!WA3><!WA3><!WA3><A HREF="http://www.siggraph.org/conferences/siggraph96"> SIGGRAPH 96 </A><BR><!WA4><!WA4><!WA4><!WA4><!WA4><!WA4><!WA4><A HREF="ftp://ftp.cs.wisc.edu/computer-vision/abstracts.html#icpr96-seitz"><I>Toward Image-Based Scene Representation Using View Morphing </I></A> --- to appear in<!WA5><!WA5><!WA5><!WA5><!WA5><!WA5><!WA5><A HREF="http://www.prip.tuwien.ac.at/icpr/icpr.html"> ICPR 96 </A><P>Image morphing techniques can generate compelling 2D transitions betweenimages.  However, differences in object pose or viewpoint often causeunnatural distortions in image morphs that are difficult to correct manually.Using basic principles of projectivegeometry, this paper introduces a simple extension to image morphingthat correctly handles 3D projective camera and scene transformations.The technique, called {\em view morphing}, works by prewarping two imagesprior to computing a morph and then postwarping the interpolated images.Because no knowledge of 3D shape is required, the technique may be appliedto photographs and drawings, as well as rendered scenes.The ability to synthesize changes both in viewpoint and image structureaffords a wide variety of interesting 3D effects via simple imagetransformations.<P><TABLE BORDER=0 CELLPADDING=2 CELLSPACING=2><TR ALIGN=center>	<TD> 	<!WA6><!WA6><!WA6><!WA6><!WA6><!WA6><!WA6><A HREF="http://www.cs.wisc.edu/~seitz/interp/mfig1.mpg">	<!WA7><!WA7><!WA7><!WA7><!WA7><!WA7><!WA7><IMG SRC="http://www.cs.wisc.edu/~seitz/interp/mfig1.gif"> </A>,	</TD></TR><TR VALIGN=center> 	<TD> <B>View morphing between two images of an object taken from 	two different viewpoints produces the illusion of physically moving a 	virtual camera.  	<BR>	Click for an 	<!WA8><!WA8><!WA8><!WA8><!WA8><!WA8><!WA8><A HREF="http://www.cs.wisc.edu/~seitz/interp/mfig1.mpg">	MPEG movie </A> (184K) of this interpolation. </B>	</TD></TR></TABLE><P><TABLE BORDER=0 CELLPADDING=2 CELLSPACING=2><TR ALIGN=center>	<TD> 	<!WA9><!WA9><!WA9><!WA9><!WA9><!WA9><!WA9><A HREF="http://www.cs.wisc.edu/~seitz/interp/mfig2.mpg">	<!WA10><!WA10><!WA10><!WA10><!WA10><!WA10><!WA10><IMG ALIGN=TOP SRC="http://www.cs.wisc.edu/~seitz/interp/mfig2.gif"> </A>	</TD></TR><TR VALIGN=center>	<TD> <B> Morph between views of different faces produces simultaneous	interpolation of facial shape, color, and pose.	<BR>	Click for an	<!WA11><!WA11><!WA11><!WA11><!WA11><!WA11><!WA11><A HREF="http://www.cs.wisc.edu/~seitz/interp/mfig2.mpg">	MPEG movie </A> (143K) of this interpolation. </B>	</TD></TR></TABLE><P><HR><H1> More MPEG Movies of View Morphs </H1><P><TABLE BORDER=1 CELLPADDING=2 CELLSPACING=1><TR ALIGN=left>	<TD> <!WA12><!WA12><!WA12><!WA12><!WA12><!WA12><!WA12><A HREF="http://www.cs.wisc.edu/~seitz/interp/mona.gif"> 		<!WA13><!WA13><!WA13><!WA13><!WA13><!WA13><!WA13><IMG ALIGN=CENTER SRC="http://www.cs.wisc.edu/~seitz/interp/mona-icon.gif"> </A> 	</TD>	<TD> Two resolutions of Mona Lisa <--> Mona Lisa reflection: 		<UL> 		<LI> <!WA14><!WA14><!WA14><!WA14><!WA14><!WA14><!WA14><A HREF="http://www.cs.wisc.edu/~seitz/interp/mona.mpg"> 			High resolution MPEG movie </A> (198K, 10 frames)		<LI> <!WA15><!WA15><!WA15><!WA15><!WA15><!WA15><!WA15><A HREF="http://www.cs.wisc.edu/~seitz/interp/monas.mpg"> 			Low resolution MPEG movie </A> (64K, 20 frames)		</UL>	</TD></TR><TR ALIGN=center>	<TD> <!WA16><!WA16><!WA16><!WA16><!WA16><!WA16><!WA16><A HREF="http://www.cs.wisc.edu/~seitz/interp/chude.gif"> 		<!WA17><!WA17><!WA17><!WA17><!WA17><!WA17><!WA17><IMG SRC="http://www.cs.wisc.edu/~seitz/interp/chude-icon.gif"> </A>	</TD>	<TD> Click for <!WA18><!WA18><!WA18><!WA18><!WA18><!WA18><!WA18><A HREF="http://www.cs.wisc.edu/~seitz/interp/chude.mpg"> 		MPEG movie </A> (84K) of Jude Shavlik <--> Chuck Dyer	</TD></TR></TABLE><HR><ADDRESS> <!WA19><!WA19><!WA19><!WA19><!WA19><!WA19><!WA19><IMG ALT="o" SRC="http://www.cs.wisc.edu/~seitz/tinysteve.gif">Last Changed: September 8, 1996 </ADDRESS> <HR></BODY></HTML>
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