-
公开(公告)号：US12101859B2
公开(公告)日：2024-09-24
申请号：US17656590
申请日：2022-03-25
IPC分类号： H05B47/105 , F21V21/084
CPC分类号： H05B47/105 , F21V21/084
摘要： A computing system includes an illumination light source configured to emit illumination light into an external environment and an orientation sensor configured to estimate an orientation of the illumination light source relative to the external environment. The computing system includes a logic subsystem and a storage subsystem holding instructions executable by the logic subsystem to define a light restriction zone within the external environment. Based at least in part on the orientation of the illumination light source, the illumination light source is dynamically controlled to direct the illumination light toward at least a portion of the external environment outside the light restriction zone, while mitigating emission of the illumination light into the light restriction zone.
-
公开(公告)号：US12080012B2
公开(公告)日：2024-09-03
申请号：US18295768
申请日：2023-04-04
CPC分类号： G06T7/593 , G02B27/017 , G06T3/40 , G06T5/20 , G06T5/50 , G06T2207/10012 , G06T2207/10048 , G06T2207/20028
摘要： A system for low compute high-resolution depth map generation using low-resolution cameras is configured to obtain a stereo pair of images and generate a depth map by performing stereo matching on the stereo pair of images. The system is also configured to obtain a first image comprising first texture information for the environment that has a first image resolution that is higher than an image resolution of images of the stereo pair of images. The system is further configured to generate a reprojected first image by reprojecting the first image to correspond to an image capture perspective associated with the depth map. The reprojection of the first image is based on depth information from the depth map and includes reprojected first texture information for the environment. The system is also configured to generate an upsampled depth map based on the depth map.
-
公开(公告)号：US12056879B2
公开(公告)日：2024-08-06
申请号：US17179020
申请日：2021-02-18
CPC分类号： G06T7/13 , G02B27/0172 , G06N3/04 , G06V10/464 , G06V10/60 , G02B2027/0129 , G02B2027/0138
摘要： Techniques for generating an enhanced image. A first image is generated using a first camera of a first modality, and a second image is generated using a second camera of a second modality. Pixels that are common between the two images are identified. Textures for the common pixels are determined. Saliencies of the two images are determined, where the saliencies reflect amounts of texture variation present in those images. An alpha map is generated and reflects edge detection weights that have been computed for each one of the common pixels based on the two saliencies. A determination is made as to how much texture from the first and/or second images to use to generate an enhanced image. This determining process is based on the edge detection weights included within the alpha map. Based on the edge detection weights, textures are merged from the common pixels to generate the enhanced image.
-
公开(公告)号：US11841509B2
公开(公告)日：2023-12-12
申请号：US17986445
申请日：2022-11-14
CPC分类号： G02B27/0172 , G06F3/012 , G06F3/017 , G06T7/248 , G06T7/337 , G06T19/006 , G02B2027/0138
摘要： Techniques for updating a position of overlaid image content using IMU data to reflect subsequent changes in camera positions to minimize latency effects are disclosed. A “system camera” refers to an integrated camera that is a part of an HMD. An “external camera” is a camera that is separated from the HMD. The system camera and the external camera generate images. These images are overlaid on one another and aligned to form an overlaid image. Content from the external camera image is surrounded by a bounding element in the overlaid image. IMU data associated with both the system camera and the external camera is obtained. Based on that IMU data, an amount of movement that the system camera and/or the external camera have moved since the images were originally generated is determined. Based on that movement, the bounding element is shifted to a new position in the overlaid image.
-
公开(公告)号：US11765475B2
公开(公告)日：2023-09-19
申请号：US17506218
申请日：2021-10-20
CPC分类号： H04N25/63 , G06T3/40 , G06T5/002 , G06T5/20 , G06T5/50 , H04N25/46 , H04N25/673 , G06T2207/20032 , G06T2207/20216
摘要： A system for obtaining dark current images includes one or more processors and one or more hardware storage devices storing instructions that are executable by the one or more processors to configure the system to perform various acts. The acts include obtaining a first image frame, generating a first low-pass filtered image by applying a low-pass filter to the first image frame, and generating a first estimated dark current image by subtracting the first low-pass filtered image from the first image frame.
-
公开(公告)号：US11756177B2
公开(公告)日：2023-09-12
申请号：US17524274
申请日：2021-11-11
CPC分类号： G06T5/50 , G06T3/40 , G06T5/002 , H04N23/682 , H04N23/6812 , G06T2207/20216 , G06T2207/20224
摘要： Techniques to temporally filter images via a filtering weight computation are disclosed. A first image having a first timestamp and a second image having a second timestamp are acquired. These images are generated by a camera, and the first timestamp is before the second timestamp. A motion compensation (MC) operation is performed on the first image to produce an MC image. A difference image is generated using the MC image and the second image. The difference image reflects differences in intensities that exist between the two images. A local weight map is generated based on those differences. A global weight map is generated based on certain IMU data. A final weight map is generated based on a combination of the local weight map and the global weight map. The final weight map is used to generate a filtered image.
-
公开(公告)号：US11711628B2
公开(公告)日：2023-07-25
申请号：US17334635
申请日：2021-05-28
IPC分类号： H04N25/702 , G06T3/40 , G06T5/20 , H04N9/64 , H04N23/84
CPC分类号： H04N25/702 , G06T3/4015 , G06T5/20 , H04N9/646 , H04N23/843 , G06T2207/20028 , H04N2209/042
摘要： A system for obtaining color imagery using SPADs includes a SPAD array that has a plurality of SPAD pixels. Each of the plurality of SPAD pixels includes a respective color filter positioned thereover. The system is configurable to capture an image frame using the SPAD array and generate a filtered image by performing a temporal filtering operation using the image frame and at least one preceding image frame. The at least one preceding image frame is captured by the SPAD array at a timepoint that temporally precedes a timepoint associated with the image frame. The system is also configurable to, after performing the temporal filtering operation, generate a color image by demosaicing the filtered image.
-
公开(公告)号：US11700361B2
公开(公告)日：2023-07-11
申请号：US17306798
申请日：2021-05-03
IPC分类号： H04N13/271 , G06T7/593 , H04N13/254 , H04N23/72
CPC分类号： H04N13/271 , G06T7/593 , H04N13/254 , H04N23/72 , G06T2207/20081
摘要： A system for single photon avalanche diode image capture is configurable to, over a frame capture time period, selectively activate an illuminator to alternately emit light from the illuminator and refrain from emitting light from the illuminator. The system is configurable to, over the frame capture time period, perform a plurality of sequential shutter operations to configure each SPAD pixel of the SPAD array to enable photon detection. The plurality of sequential shutter operations generates, for each SPAD pixel of the SPAD array, a plurality of binary counts indicating whether a photon was detected during each of the plurality of sequential shutter operations. The system is configurable to, based on a first set of binary counts of the plurality of binary counts, generate an ambient light image. The system is configurable to, based on a second set of binary counts of the plurality of binary counts, generate an illuminated image.
-
公开(公告)号：US11620734B2
公开(公告)日：2023-04-04
申请号：US17168373
申请日：2021-02-05
摘要： Techniques for de-aliasing depth ambiguities included within infrared phase depth images are described herein. An illuminator emits reference light towards a target object. Some of this light is reflected back and detected. A phase image is generated based on phase differences between the reference light and the reflected light. The phase differences represent changes in depth within overlapping sinusoidal periods of the reference and reflected light. The phase image also includes ambiguities because multiple different depths within the phase image share the same phase difference value, even though these depths actually correspond to different real-world depths. The phase image is fed as input to a machine learning (“ML”) component, which is configured to de-alias the ambiguities by determining, for each pixel in the phase image, a corresponding de-aliasing interval. A depth map is generated based on the phase image and any de-aliasing intervals generated by the ML component.
-
公开(公告)号：US11580713B2
公开(公告)日：2023-02-14
申请号：US17147378
申请日：2021-01-12
IPC分类号： G06T19/20 , G06T7/70 , G01S17/894 , G01D5/39 , G01P3/38
摘要： Examples are disclosed that relate to motion compensation on a single photon avalanche detector (SPAD) array camera. One example provides a method enacted on an imaging device comprising a SPAD array camera and a motion sensor, the SPAD array camera comprising a plurality of pixels. The method comprises acquiring a plurality of subframes of image data. Each subframe of image data comprises a binary value for each pixel. Based upon motion data from the motion sensor, the method further comprises determining a change in pose of the imaging device between adjacent subframes, applying a positional offset to a current subframe based upon the motion data to align a location of a stationary imaged feature in the current subframe with a location of the stationary imaged feature in a prior subframe to create aligned subframes, summing the aligned subframes to form an image, and outputting the image.
-
-
-
-
-
-
-
-
-
搜索结果
108 条记录 (耗时 0.033 秒)
