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公开(公告)号：US20240078414A1
公开(公告)日：2024-03-07
申请号：US18507949
申请日：2023-11-13
IPC分类号： G06N3/0464 , G06N7/01
CPC分类号： G06N3/0464 , G06N7/01
摘要： Methods and apparatuses are provided for entropy encoding and decoding of a latent tensor, which includes separating the latent tensor into patches and obtaining a probability model for the entropy encoding of a current element of the latent tensor by processing a set of elements from different patches by one or more layers of a neural network. The processing of the set of elements by applying a convolution kernel enables sharing of information between the separated patches.
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公开(公告)号：US11726346B2
公开(公告)日：2023-08-15
申请号：US17461501
申请日：2021-08-30
IPC分类号： G02B27/00 , G02B30/40 , H04N13/167 , H04N13/144 , H04N13/351 , H04N13/398 , G02B7/06
CPC分类号： G02B30/40 , G02B7/06 , H04N13/144 , H04N13/167 , H04N13/351 , H04N13/398
摘要： A focus tunable optical system includes a compound lens, which includes a plurality of focus tunable lenses. Further, the focus tunable optical system comprises a controller, which is configured to shift a focus of the compound lens from a first focal plane to a second focal plane. To this end, the controller is configured to apply, individually to each focus tunable lens of the plurality of the focus tunable lenses, a control signal having a first value for the first focal plane and a second value for the second focal plane.
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公开(公告)号：US11662547B2
公开(公告)日：2023-05-30
申请号：US16741849
申请日：2020-01-14
发明人： Atanas Boev , Panji Setiawan
摘要： A multifocal display device has a focus tunable lens, a controller, and a storage. The controller selectively tunes the focus of the lens to a plurality of focal planes of different index during a frame per A focal plane of lower index has a shorter focal distance. The storage stores a plurality of focal plane groups, each group including the plurality of focal planes in a different sequence. The controller selects a first group and tunes, during a first frame period, the focus of the lens to each one of the focal planes in the first group according to their sequence, and selects a second group from groups allowed by a selection rule, and tunes, during a second frame period, the focus of the lens to each one of the focal planes in the second group according to their sequence.
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公开(公告)号：US20240267568A1
公开(公告)日：2024-08-08
申请号：US18639170
申请日：2024-04-18
摘要： Methods and apparatuses are described for entropy encoding and decoding of a latent tensor, which includes separating the latent tensor into segments in the spatial dimensions, each segment including at least one latent tensor element. An arrangement of the segments is processed by a neural network; the neural network includes at least one attention layer. Based on the processed segment a probability model is obtained for entropy encoding or decoding of a latent tensor element.
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公开(公告)号：US20230116285A1
公开(公告)日：2023-04-13
申请号：US18064745
申请日：2022-12-12
IPC分类号： H04N19/88 , H04N19/436 , H04N19/167 , H04N19/186 , H04N19/136 , H04N19/17
摘要： The present disclosure relates to image modification such as an image enhancement. The image enhancement may be applied for any image modification and it may be applied during or after image encoding and/or decoding, e.g. as a loop filter or a post filter. In particular, the image modification includes a multi-channel processing in which a primary channel is processed separately and secondary channels are processed based on the processed primary channel. The processing is based on a neural network. In order to enhance the image modification performance, prior to applying the modification, the image channels are analyzed and a primary channel and the secondary channels are determined, which may vary for multiples of images, images or image areas.
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公开(公告)号：US11049472B2
公开(公告)日：2021-06-29
申请号：US16752965
申请日：2020-01-27
发明人： Atanas Boev , Panji Setiawan
IPC分类号： G09G5/02 , G02B30/26 , G02B27/01 , G02F1/1335 , G09G3/36
摘要： The disclosure provides a multifocal display device, comprising a display configured to generate an image, and a controller configured to control the display according to a bit sequence provided over a determined time period to generate the image with one or more colors. The bit sequence includes for each color a subsequence of bits of different significance. Neither the first bit nor the last bit of the subsequence for the respective color is the most significant bit of the subsequence.
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公开(公告)号：US20240296593A1
公开(公告)日：2024-09-05
申请号：US18661245
申请日：2024-05-10
发明人： Alexander Alexandrovich Karabutov , Panqi Jia , Atanas Boev , Han Gao , Biao Wang , Elena Alexandrovna Alshina , Johannes Sauer
IPC分类号： G06T9/00 , H04N19/13 , H04N19/167 , H04N19/186
CPC分类号： G06T9/002 , H04N19/13 , H04N19/167 , H04N19/186
摘要： A conditional coding of components of an image is described. A method of encoding at least a portion of an image is provided, which comprises encoding a primary component of the image independently from at least one secondary component and encoding the at least one secondary component of the image using information from the primary component. Further, it is provided a method of encoding at least a portion of an image, comprising providing a residual comprising a primary residual component for a primary component of the image and at least one secondary residual component for at least one secondary component of the image that is different from the primary component, encoding the primary residual component independently from the at least one secondary residual component and encoding the at least one secondary residual component using information from the primary residual component.
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公开(公告)号：US11601637B2
公开(公告)日：2023-03-07
申请号：US17156105
申请日：2021-01-22
IPC分类号： H04N13/322 , H04N13/194 , H04N13/398 , G02B3/14
摘要： An image transmission device of a multifocal display system is described, for transmitting a set of N composite images based on a set of N primary images to an image reception device. N is greater or equal 2, and each of the N primary images has a focus distance associated therewith. The image transmission device includes processing circuitry configured to partition each of the N primary images into image portions and generate the N composite images by placing each image portion of each of the N primary images into one of the N composite images such that each of the N composite images comprises image portions from two or more of the N primary images. A communication interface transmits the N composite images to the image reception device (103).
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公开(公告)号：US11164012B2
公开(公告)日：2021-11-02
申请号：US16729268
申请日：2019-12-27
发明人： Atanas Boev , Onay Urfalioglu , Panji Setiawan
IPC分类号： G06K9/00 , B60W40/072 , G06K9/46 , G06K9/62
摘要： A driver assistance system detects lane markings in a perspective image of a road in front of a vehicle. The driver assistance system extracts a plurality of features, in particular lane markings, from the perspective image for generating a set of feature coordinates, in particular lane marking coordinates. The system generates a plurality of pairs of feature coordinates, each pair defining a straight line, and estimates a lane curvature on the basis of a subset of the pairs of feature coordinates. For each pair a straight line defined by the pair intersects a predefined target portion of the perspective image, the predefined target portion including a plurality of possible positions of a vanishing point.
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公开(公告)号：US11081082B2
公开(公告)日：2021-08-03
申请号：US16752965
申请日：2020-01-27
发明人： Atanas Boev , Panji Setiawan
IPC分类号： G09G5/02 , G02B30/26 , G02B27/01 , G02F1/1335 , G09G3/36
摘要： The disclosure provides a multifocal display device, comprising a display configured to generate an image, and a controller configured to control the display according to a bit sequence provided over a determined time period to generate the image with one or more colors. The bit sequence includes for each color a subsequence of bits of different significance. Neither the first bit nor the last bit of the subsequence for the respective color is the most significant bit of the subsequence.
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