{"id":184891,"date":"2010-05-25T00:00:00","date_gmt":"2010-05-28T20:05:27","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/image-render-capture-applications\/"},"modified":"2016-08-22T11:27:39","modified_gmt":"2016-08-22T18:27:39","slug":"image-render-capture-applications","status":"publish","type":"msr-video","link":"https:\/\/www.microsoft.com\/en-us\/research\/video\/image-render-capture-applications\/","title":{"rendered":"Image Render-Capture Applications"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Two very different applications that use a render-capture paradigm will be presented; the first is a projector-camera system and the second uses a print-scan process.<\/p>\n<p>In anticipation of the proliferation of micro-projectors on handheld imaging devices, we designed and tested a projector-camera system that allows a distant user to point into a remote 3D environment with a projector.  The solution involves a means for locating a projected dot, and for adjusting its location to correspond to a position indicted by a remote user viewing the scene through a camera.  While many projector-camera systems require a calibration phase, our solution allows calibration-free operation. The tracking algorithm is implemented with a modified 2D gradient decent method that performs even in the presence of spatial discontinuities.  Our prototype performs real-time and accurate tracking across irregularly shaped and colored surfaces.  Tests with Inter-continental separations of client and server suffered no loss of responsiveness.<\/p>\n<p>An alternative to unsightly barcodes is a new method for embedding data into an image halftone.  The process takes as input any image and a payload of data to be encoded and produces a bitonal clustered-dot halftone of that image with selected halftone clusters shifted to carry varying number of bits from the payload.  The resulting data-bearing steganographic halftone is referred to as a \u201cStegatone\u201d. Because of the small size and large number of clustered-dot cells in printed halftones the bit density is quite high.  Scans of printed Stegatones from a number of printers support the robustness of the method with high data recovery rates.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Two very different applications that use a render-capture paradigm will be presented; the first is a projector-camera system and the second uses a print-scan process. In anticipation of the proliferation of micro-projectors on handheld imaging devices, we designed and tested a projector-camera system that allows a distant user to point into a remote 3D environment [&hellip;]<\/p>\n","protected":false},"featured_media":195632,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr_hide_image_in_river":0,"footnotes":""},"research-area":[],"msr-video-type":[],"msr-locale":[268875],"msr-post-option":[],"msr-session-type":[],"msr-impact-theme":[],"msr-pillar":[],"msr-episode":[],"msr-research-theme":[],"class_list":["post-184891","msr-video","type-msr-video","status-publish","has-post-thumbnail","hentry","msr-locale-en_us"],"msr_download_urls":"","msr_external_url":"https:\/\/youtu.be\/A9816Tz7pWY","msr_secondary_video_url":"","msr_video_file":"","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-video"}],"version-history":[{"count":0,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184891\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media\/195632"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=184891"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=184891"},{"taxonomy":"msr-video-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video-type?post=184891"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=184891"},{"taxonomy":"msr-post-option","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-post-option?post=184891"},{"taxonomy":"msr-session-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-session-type?post=184891"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=184891"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=184891"},{"taxonomy":"msr-episode","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-episode?post=184891"},{"taxonomy":"msr-research-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-research-theme?post=184891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}