Method and system for determining a current gaze direction
Method for determining a current gaze direction of a user in relation to a threedimensional ("3D") scene (10), which 3D scene (10) is sampled by a rendering function to produce a two-dimensional ("2D") projection image of the 3D scene (10), which sampling is performed based on a...
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| creator | Lindh, Fredrik |
| description | Method for determining a current gaze direction of a user in relation to a threedimensional ("3D") scene (10), which 3D scene (10) is sampled by a rendering function to produce a two-dimensional ("2D") projection image of the 3D scene (10), which sampling is performed based on a virtual camera (20) in turn being associated with a virtual camera position and virtual camera direction in the 3D scene (10), wherein the method comprises the steps:determining, by a gaze direction detection means (42), a first gaze direction of the user at a first gaze time point (TG1), which first gaze direction is related to said 3D scene (10); determining a virtual camera (20) 3D transformation, which 3D transformation represents a change of a virtual camera (20) position and/or virtual camera (20) direction between the first gaze time point (TG1) and a second sampling time point (TR2), where the second sampling time point (TR2) is later than the first gaze time point (TG1); anddetermining the said current gaze direction as a modified gaze direction, in turn calculated based on the first gaze direction, and further calculated based on an inverse of said virtual camera (20) 3D transformation.The invention also relates to a system and to a computer software function. |
| format | Patent |
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determining a virtual camera (20) 3D transformation, which 3D transformation represents a change of a virtual camera (20) position and/or virtual camera (20) direction between the first gaze time point (TG1) and a second sampling time point (TR2), where the second sampling time point (TR2) is later than the first gaze time point (TG1); anddetermining the said current gaze direction as a modified gaze direction, in turn calculated based on the first gaze direction, and further calculated based on an inverse of said virtual camera (20) 3D transformation.The invention also relates to a system and to a computer software function.</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201013&DB=EPODOC&CC=SE&NR=543121C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201013&DB=EPODOC&CC=SE&NR=543121C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Lindh, Fredrik</creatorcontrib><title>Method and system for determining a current gaze direction</title><description>Method for determining a current gaze direction of a user in relation to a threedimensional ("3D") scene (10), which 3D scene (10) is sampled by a rendering function to produce a two-dimensional ("2D") projection image of the 3D scene (10), which sampling is performed based on a virtual camera (20) in turn being associated with a virtual camera position and virtual camera direction in the 3D scene (10), wherein the method comprises the steps:determining, by a gaze direction detection means (42), a first gaze direction of the user at a first gaze time point (TG1), which first gaze direction is related to said 3D scene (10); determining a virtual camera (20) 3D transformation, which 3D transformation represents a change of a virtual camera (20) position and/or virtual camera (20) direction between the first gaze time point (TG1) and a second sampling time point (TR2), where the second sampling time point (TR2) is later than the first gaze time point (TG1); anddetermining the said current gaze direction as a modified gaze direction, in turn calculated based on the first gaze direction, and further calculated based on an inverse of said virtual camera (20) 3D transformation.The invention also relates to a system and to a computer software function.</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDyTS3JyE9RSMxLUSiuLC5JzVVIyy9SSEktSS3KzczLzEtXSFRILi0qSs0rUUhPrEpVSMksSk0uyczP42FgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8cGupibGhkaGzkbGhFUAALpdLjU</recordid><startdate>20201013</startdate><enddate>20201013</enddate><creator>Lindh, Fredrik</creator><scope>EVB</scope></search><sort><creationdate>20201013</creationdate><title>Method and system for determining a current gaze direction</title><author>Lindh, Fredrik</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_SE543121C23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2020</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>Lindh, Fredrik</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lindh, Fredrik</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method and system for determining a current gaze direction</title><date>2020-10-13</date><risdate>2020</risdate><abstract>Method for determining a current gaze direction of a user in relation to a threedimensional ("3D") scene (10), which 3D scene (10) is sampled by a rendering function to produce a two-dimensional ("2D") projection image of the 3D scene (10), which sampling is performed based on a virtual camera (20) in turn being associated with a virtual camera position and virtual camera direction in the 3D scene (10), wherein the method comprises the steps:determining, by a gaze direction detection means (42), a first gaze direction of the user at a first gaze time point (TG1), which first gaze direction is related to said 3D scene (10); determining a virtual camera (20) 3D transformation, which 3D transformation represents a change of a virtual camera (20) position and/or virtual camera (20) direction between the first gaze time point (TG1) and a second sampling time point (TR2), where the second sampling time point (TR2) is later than the first gaze time point (TG1); anddetermining the said current gaze direction as a modified gaze direction, in turn calculated based on the first gaze direction, and further calculated based on an inverse of said virtual camera (20) 3D transformation.The invention also relates to a system and to a computer software function.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION |
| title | Method and system for determining a current gaze direction |
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