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公开(公告)号：US09892534B2
公开(公告)日：2018-02-13
申请号：US15093491
申请日：2016-04-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeongjoon Yoo , Sundeep Krishnadasan , Jaedon Lee , John Brothers , Soojung Ryu , Wonjong Lee
CPC classification number: G06T11/40 , G06T11/203
Abstract: A method of performing path rendering includes selecting a tile including a path from tiles in a frame based on tile bin data, splitting the selected tile into a plurality of first sub-tiles, selecting a first sub-tile that does not include the path from the plurality of first sub-tiles, and updating an initial winding number of the selected first sub-tile. The tile bin data includes an initial winding number of each of the tiles in the frame.
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2.发明授权Method and apparatus for generating acceleration structure in ray tracing system 有权用于在光线跟踪系统中产生加速度结构的方法和装置公开(公告)号：US09576389B2
公开(公告)日：2017-02-21
申请号：US14520538
申请日：2014-10-22
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Jaedon Lee , Jinwoo Kim , Youngsam Shin , Minwoo Lee , Wonjong Lee , Tackdon Han
IPC: G06T15/06
CPC classification number: G06T15/06
Abstract: Provided are an apparatus and method for generating an acceleration structure in a ray tracing system. The method of generating an acceleration structure includes splitting, at an acceleration structure generator, a space comprising a three-dimensional (3D) object into a plurality of sub spaces, calculating costs for traversing the plurality of sub spaces based on occlusion information of primitives in the plurality of sub spaces, selecting the plurality of sub spaces that minimize the costs for traversing, and generating an acceleration structure based on setting the selected plurality of sub spaces as nodes.
Abstract translation: 提供了一种用于在光线跟踪系统中产生加速度结构的装置和方法。 产生加速结构的方法包括：在加速度结构生成器处，将包含三维（3D）对象的空间分割成多个子空间，根据基本上的原语的遮挡信息计算穿过多个子空间的成本 所述多个子空间，选择最小化所述运行成本的所述多个子空间，以及基于将所选择的多个子空间设置为节点来生成加速结构。
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公开(公告)号：US10026214B2
公开(公告)日：2018-07-17
申请号：US15335723
申请日：2016-10-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngsam Shin , Wonjong Lee , Seokjoong Hwang
Abstract: A ray tracing apparatus includes a traversal (TRV) core configured to traverse an acceleration structure (AS) to detect a first node and a second node, which intersect with a generated ray and have a determined same parent node, and to determine whether the ray intersects with an overlap region where a first bounding box corresponding to the first node overlaps a second bounding box corresponding to the second node; and, an intersection test (IST) determiner configured to calculate a first hit point where the ray intersects with a primitive belonging to the first node, which is a closer node to a view point of the ray among the first node and the second node, and to determine a final hit point of the ray based on a result of the determining of whether the ray intersects with respect to an overlap region, by the TRV core.
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公开(公告)号：US10019830B2
公开(公告)日：2018-07-10
申请号：US14514642
申请日：2014-10-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngsam Shin , Wonjong Lee , Jaedon Lee
Abstract: A rendering method includes determining frames. The rendering method further includes successively rendering same regions of the frames. In another general aspect, rendering device includes an inter-frame determining unit configured to determine frames. The rendering device further includes a rendering unit configured to successively render same regions of the frames.
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公开(公告)号：US09865078B2
公开(公告)日：2018-01-09
申请号：US14939263
申请日：2015-11-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Wonjong Lee , Youngsam Shin , Seokjoong Hwang
CPC classification number: G06T15/06 , G06T15/005
Abstract: According to a method of processing an image, respective sampling rates of each tile included in a second frame is determined based on a corresponding rendering result of a first frame, and a pixel rendering process to implement rendering of pixels included in the second frame is selected by using geometric information of reference pixels of the second frame. The reference pixels of the second frame may be selected based on the respectively determined sampling rates.
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Patent Agency Ranking
公开(公告)号：US10580193B2
公开(公告)日：2020-03-03
申请号：US15403612
申请日：2017-01-11
Applicant: SAMSUNG ELECTRONICS CO., LTD. , Czech Technical University Faculty of Electrical Engineering
Inventor： Vlastimil Havran , Marek Vinkler , Jiri Bittner , Wonjong Lee
Abstract: A graphics processing method and apparatus includes determining locations of primitives in a 3-dimensional (3D) space from graphics data for the 3D space in a memory, determining sizes of the primitives, generating Morton codes comprising a piece of information indicating the locations of the primitives and a piece of information indicating the sizes of the primitives, classifying the primitives into bounding boxes using the piece of information indicating the sizes of the primitives, and generating the acceleration structure indicating an inclusion relationship between the bounding boxes.
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公开(公告)号：US10217271B2
公开(公告)日：2019-02-26
申请号：US15270409
申请日：2016-09-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seokjoong Hwang , Youngsam Shin , Wonjong Lee
Abstract: A method of compensating for a movement of a head-mounted display (HMD) includes sensing the movement of the HMD, predicting a movement of the HMD based on the sensed movement, projecting and rendering an image based on the predicted movement, re-sensing the movement of the HMD, re-predicting the movement of the HMD based on the re-sensed movement, determining an error value based on a comparison between the predicted movement of the HMD and the re-predicted movement of the HMD, and re-projecting and rendering the image based on the determined error value.
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公开(公告)号：US10049488B2
公开(公告)日：2018-08-14
申请号：US14722887
申请日：2015-05-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaedon Lee , Youngsam Shin , Wonjong Lee , Seokjoong Hwang
IPC: G06T15/06
Abstract: A method of traversing an acceleration structure (AS) in a ray tracing system includes obtaining information about child nodes of a target node included in the AS; determining whether each of the child nodes intersects a ray based on the obtained information; determining a next target node among at least one child node that intersects the ray; and performing an operation corresponding to a type of the determined next target node.
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公开(公告)号：US09965888B2
公开(公告)日：2018-05-08
申请号：US14704349
申请日：2015-05-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngsam Shin , Jeongsoo Park , Wonjong Lee , Jaedon Lee , Seokjoong Hwang
CPC classification number: G06T15/06 , G06T1/20 , G06T17/005 , G06T2210/12 , G06T2210/21
Abstract: Methods and apparatus for ray tracing, and methods and apparatus for generating acceleration structure or traversing acceleration structure are provided. A method of generating an acceleration structure includes assigning objects into bounding boxes, generating an acceleration structure comprising nodes and indicating inclusion relationships between the bounding boxes, and marking overlapping nodes among the nodes.
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10.发明授权公开(公告)号：US09495792B2
公开(公告)日：2016-11-15
申请号：US14548669
申请日：2014-11-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaedon Lee , Youngsam Shin , Wonjong Lee
CPC classification number: G06T15/06 , G06T15/005 , G06T17/005
Abstract: A restart method of traversing a binary tree in a ray tracing system includes traversing a tree consisting of a hierarchical acceleration structure using one-bit stacks respectively assigned to levels of the binary tree and restarting at a highest level at which a corresponding one-bit stack has a value indicating that a child node has not yet been traversed, thereby decreasing the capacity of a stack memory required.
Abstract translation: 在光线跟踪系统中遍历二叉树的重新启动方法包括遍历由分层加速结构组成的树，其使用分配给二进制树的级别的一位堆栈并在最高级重新启动，在最高级别处，相应的一位堆栈 具有指示子节点尚未被遍历的值，从而降低了所需的堆栈存储器的容量。
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