摘要:
A camera based depth mapping system. Depth information is coded with colors to make a laser-generated 3D depth map easier to interpret. In the event that the laser illumination is not sufficient, the depth information can have a low signal to noise ratio, i.e., the depth map can be noisy. Color noise reduction techniques are used to alleviate this problem.
摘要:
Systems for stereoscopic imaging and methods for making and using same. The system can include one or more processors configured to receive a first image and a second image. A block configuration can be selected from a plurality of block configurations having varying shapes and/or sizes and used for block matching. Points on the first image can be matched with corresponding points on the second image using the selected block configurations, thereby identifying a binocular disparity between the images for depth determination. The present systems and methods are suitable for use aboard mobile platforms such as unmanned aerial vehicles (UAV).
摘要:
A 3D multiview reconstruction method takes a sequence of 2D stereo images from a narrow field-of-view imager (e.g., camera) and reconstructs a 3D representation of the wide field-of-view object or scene. The 3D multiview reconstruction method tracks 2D image pixels across neighboring frames and constraints for frame integration via 3D model construction.
摘要:
Techniques are provided for calculating temporally coherent disparity values for pixels in a sequence of image frames. An example method may include calculating initial spatial disparity costs between a pixel of a first image frame from a reference camera and pixels from an image frame from a secondary camera. The method may also include estimating a motion vector for the pixel of the first reference camera image frame to a corresponding pixel from a second reference camera image frame. The method may further include calculating a confidence value for the estimated motion vector based on a measure of similarity between the colors of the pixels of the first and second image frames from the reference camera. The method may further include calculating temporally coherent disparity costs based on the initial spatial disparity costs weighted by the confidence value and selecting a disparity value based on those costs.
摘要:
Technologies are generally described for coordination of structured light-based image detectors. In some examples, one or more structured light, sources may be configured to project sets of points onto the scene. The sets of points may be arranged into disjoint sets of geometrical shapes such as lines, where each geometrical, shape includes a subset of the points projected by an illumination source. A relative position and or a color of the points in each geometrical shape may encode an identification code with which each illumination source may be identified. Thus, even when the point clouds projected by each of the illumination sources overlap, the geometrical shapes may still be detected, and thereby a corresponding illumination source may be identified. A depth map may then be estimated based on stereovision principles or depth-from-focus principles by one or more image detectors.
摘要:
A an augmented reality (AR) headset includes a depth camera assembly that combines stereo imaging with structured light (SL) to generate depth information for an area of interest. The depth camera assembly includes at least two image capture devices and a SL illuminator and determines an imaging mode based on a signal to noise ratio or spatial variance of images captured by one or more of the cameras. Different imaging modes correspond to different operation of one or more image capture devices and the SL illuminator. The depth camera assembly includes different ranges of signal to noise ratios that each correspond to an imaging mode, and the depth camera assembly configures the image capture devices and the SL illuminator based on an imaging mode associated with a range of signal to noise ratios including the signal to noise ratio of a captured image.
摘要:
A systematic approach to producing multi-dimensional photon images on a computer platform having applications to a plurality of input image(s) from various sources, and applications to coordinate and adjust numerous variables which determine the quality of the image, such as the size of the imported images, the output image size, the resolving power of the viewing screen and the width of the resolving elements, the dots per inch of the output device (or pixels per inch), the desired nearest object, the desired furthest object and the determination of the central or the "key subject", rules of interphasing, the number of frames or layers, the minimum parallax, and the maximum parallax, and, thus, provide a digital multi-dimensional image without jumping images or fuzzy features or other visual distortions by creating high quality output images both in the form of a printed hardcopy or as a viewed image on an appropriate viewing device.
摘要:
Techniques related to depth image enhancement for hardware generated depth images are discussed. Such techniques may include determining a depth image enhancement indicator for a depth image based on the depth image and a depth image model and generating pixel depth values for missing pixel depth values of the depth image when the depth image enhancement indicator indicates enhancement. The pixel depth values may be generated based on search windows that extend from a position greater than a predetermined disparity position to a maximum disparity position.
摘要:
본 발명은 다양한 입체 효과를 구현할 수 있는 조명장치 및 이를 포함하는 차량 램프에 관한 것으로, 인접하는 광원 모듈에 배치되는 발광층의 여기광의 상호 작용을 통해 최종 출사되는 광 패턴의 부피감, 깊이감, 입체감을 구현할 수 있도록 하여 다양한 3차원 광의 디자인을 구현할 수 있다. 특히, 본 발명의 실시예에 따른 조명을 차량 램프에 적용하는 경우 램프의 발광색 및 형상을 자유롭게 구현할 수 있는 장점이 있다.