317 results about "Depth perception" patented technology

Three-dimensional position information is used to identify the gesture created by a body part of interest. At one or more instances of an interval, the posture of a body part is recognized, based on the shape of the body part and its position and orientation. The posture of the body part over each of the one or more instances in the interval are recognized as a combined gesture. The gesture is classified for determining an input into a related electronic device.

Methods and systems to process stereo images and video information, and, in particular, to methods and devices to transfer and/or transform stereo content to decrease eye fatigue of a user during viewing of 3D video. The methods and systems can compute an initial map of disparity/depth for stereo images from 3D video, smooth a depth map, change depth perception parameters according to the estimation of eye fatigue, and generate new stereo image according to the depth perception parameters.

A stereoscopic image reproduction device for providing a 3D user interface includes a UI generator which generates a user interface, a depth information processor which generates a 3D depth for the user interface, and a formatting unit which generates a 3D user interface for the user interface by using the 3D depth. The depth information processor may be integrated with the formatting unit. Various factors used to generate 3D depth perception include at least any one of blur, textual gradient, linear perspective, shading, color, brightness, and chroma, which results in a 3D-type user interface (UI) being shown on a stereoscopic image display.

A method of displaying information within a three-dimensional workspace on a computer display includes partitioning the workspace into a plurality of layers, where each layer corresponds to a display depth relative to a user. At least one substantially opaque container object is displayed at a first display depth. The user is provided with a pointer operative to select objects within the three-dimensional workspace at a plurality of display depths. In response to the user selecting a container object, the opacity level of the selected container object is reduced in order to reveal at least one content object contained therein. The at least one content object contained within the selected container object is displayed at a deeper display depth relative to the first display depth. By combining three-dimensional depth cues with opacity level adjustment the present invention provides a visually pleasing computer workspace with enhanced depth perception and organization features.

Methods for generating information for displaying terrain on an aircraft display system that significantly reduces the computation and data load for producing the terrain display. This is accomplished through the use of intelligent level of detail control that computes and displays terrain and dynamic on-terrain perspective projection lines and distance rings aligned with the aircraft heading for depth perception and relative altitude awareness. The terrain details are processed and displayed in a manner that shows all significant terrain features, e.g., peaks, towers, and the like, but through the use of nonlinear error bound geometric morphing, coupled with triangle binary tree based terrain mesh generation, the polygon count, and thus the computational load, are significantly reduced, while visual fidelity is maintained.

An omnidirectional stereoscopic camera and microphone system consisting of one or more left and right eye camera and microphone pairs positioned relative to each other such that omnidirectional play back or a live feed of video and omni-directional acoustic depth perception can be achieved. A user or users can select a direction of gaze as well as to hear, and share the experience visually and audibly with the system as if the user or users are physically present. The sensor system orientation is tracked and known by compass and/or other orientation sensors enabling users to maintain gaze direction, independent of sensor system orientation changes.

A method of operating a surgical navigation system is disclosed in which a user may easily recognize a depth perception between virtual organ models and a depth relationship between the virtual organ model and a surgical instrument by switching a two-dimensional organ image which is formed through an augmented reality to a virtual organ mode by three-dimensionally rendering the organ image. A method of operating a surgical navigation system comprises identifying an object from a body image captured by a camera, forming the object in a two-dimensional organ image by using an augmented reality, and forming a virtual organ model by three-dimensionally rendering the organ image.

The invention discloses a visual computing-based optical field imaging device and method. The visual computing-based optical field imaging device comprises an optical imaging system, an integrated near-infrared light source, a data transmission module, a high-capacity cache unit, a human-machine interaction device, a logic control unit and a processing unit. The invention provides an optical field imaging device based on a computing and imaging interactive mutual-beneficial mode; and with optical field imaging as the leading and deep perception and high-dynamic range imaging as the assistance, visual perception intelligent and visual cognition precision are realized, novel visual information with characteristics of large depth-of-field, wide dynamic range, actual three dimension, high resolution and capability of collecting and editing is obtained, and accuracy and robustness of a visual computing task are improved through data innovation of a visual perception source; and the optical field imaging device is widely applied to the fields of internet of things, security monitoring and control, biological recognition, intelligent transportation system, aerial remote sensing, digital medical treatment, animation media and the like.

A virtual object placed in a three-dimensional virtual space and a user interface are stereoscopically displayed on an upper LCD of a game apparatus. An image used for adjusting a display position of the user interface in the depth direction is displayed on a lower LCD. A user adjusts a UI adjustment slider by using a touch pen to adjust the parallax of the user interface. This allows the adjustment of the parallax of the user interface separately from the parallax of the three-dimensional virtual space, and thereby the depth perception of the user interface can be adjusted.

The present invention provides a method of binocular depth perception based on active structured light, adopting a coded pattern projector to project a coded pattern for structured light coding of the projective space or target object (characteristic calibration), then obtaining the coded pattern by means of two cameras on the same baseline and respectively located symmetrically on both sides of the coded pattern projector, after preprocessing and projection shadow detection, estimating the block matching movement in two modes based on the image blocks (binocular block matching and automatic matching) to obtain the offset of the optimal matching block, finally working out the depth value according to the formula for depth calculation and compensating the depth of the projection shadows to generate high-resolution and high-precision depth information.

The invention relates to a method and system for generating a 3-dimensional image on a 2-dimensional display of a device. The method includes the steps of receiving an image in image processor means and using the image processor means to determine at least two pixels layers in the image. A proximity value is then assigned to each pixel layer wherein the proximity value is indicative of a depth perception of the pixel layer relative to a user of a device having a display screen. An instruction module is then coupled to the image operative to cause each pixel layer to move along an axis of orientation on the 2-dimensional display of the device and at a velocity rate dependent upon the proximity value assigned to the pixel layer.

The invention discloses a method for extracting a video interested region based on a visual attention. The interested region extracted by the method combines a static image domain visual attention, amotion visual attention and a depth perception attention, and the method efficiently restrains the internal unicity and inaccuracy of each visual attention extraction and solves the problem of noisescaused by a complex background in the static image domain visual attention and the problem that the motion visual attention can not extract an interested region with small local motion and motion amplitude, thus the method improves the calculation accuracy, enhances the algorithm stability and extracts an interested region from a background with complex veins and the motion environment; furthermore, the interested region obtained by the method accords with the depth perception feature interesting on an object having a strong depth perception or a short distance in the stereovision and the semantic characteristic of human eye stereovision besides according with the vision feature of human eye interesting a static grain video frame and interesting a motion object.

The present invention discloses a structured light encoding-based vertical depth perception apparatus, the apparatus comprising: a laser pattern projector, an infrared receiving camera, a RGB receiving camera, and a depth perception module; the laser pattern projector, the RGB receiving camera, and the infrared receiving camera are disposed along a straight line vertical to a horizontal plane; the laser pattern projector is for projecting a laser encoded pattern; the infrared receiving camera is for consecutively acquiring the encoded patterns and generating an input encoded image sequence; the RGB receiving camera is for acquiring RGB video stream; and the depth perception module is for generating a depth map sequence. The apparatus according to the present invention may not only generate high-resolution and high-precision depth information in real-time, and but also solve the cavity issue existing at the horizontal direction edge of the to-be-measured object when a horizontal depth perception device performs a depth measurement; besides, it facilitates uniform extraction of the depth map sequence and the to-be-measured object in the RGB video stream.

The invention provides a multi-camera-array depth perception method. The multi-camera-array depth perception method includes the following steps that: a laser speckle projector or other projection devices are adopted to project a constant pattern, and structured light coding is performed on space; multiple cameras in the same baseline are adopted to obtain the projected pattern; depth is calculated through two kinds of block matching motion estimation methods which includes block matching calculation between input images and reference images and double-target block matching calculation between every two input images; and depth image fusion is performed among a plurality of depth images according to detected distance ranges and projection shadows, and the interference of shadows and noises is eliminated, and high-resolution and high-accuracy image depth information can be generated. The method is easy to realize by adopting hardware, and can improve the accuracy of depth measurement and expand the range of the depth measurement.

The invention discloses a stereo image quality objective evaluation method based on visual perception. Firstly, a stereo image is divided into a strong edge block, a weak edge block , a flat block and a texture block, and characteristic information reflecting image quality and depth perception of different zone blocks is extracted through computation so as to obtain stereo image characteristic vectors; and then the characteristic vectors of distorted stereo images of the same distortion type in a distorted stereo image set are trained through support vector regression, and each distorted stereo image of the same distortion type is tested by a support vector regression training model to obtain the objective image quality evaluation forecast value of each distorted stereo image. The method has the advantages that the obtained characteristic vector information reflecting the image quality and the depth perception has stronger stability and can better reflect the quality change condition of the stereo images, and the relevance of an objective evaluation result and subjective perception is improved.

An autostereoscopic display provides true natural perception of 3D scenes by projecting depth-slice images of objects located at different distances, so during each video frame the scene is segmented into five or more different depths and then each displayed in succession with both the stereo disparity and apparent image distance proper for each depth.

A simulator system includes a user tracking device for detecting a position of a user and generating a sensor signal representing the position of the user, a processor for receiving the sensor signal, analyzing the sensor signal, and generating an image signal in response to the analysis of the sensor signal, wherein the analyzing of the sensor signal includes determining a position of a virtual camera corresponding to the position of the user, the virtual camera being directed toward a reference look-at-point; and a image generating device for receiving the image signal and generating an image in response to the image signal, wherein the image is modified in response to the position and an orientation of the virtual camera relative to the reference look-at-point.

Systems and methods are proposed for non-contact monitoring of spatio-temporal mechanics comprising motion patterns of respiratory muscles, lungs and diaphragm. The depth capable sensors system is comprised of modules, including a depth estimation module, a reference shape generation module, a region of interest shape estimation module, and a shape comparison module. A recommender module is optionally included. The acquisition of spatio-temporal respiratory mechanic data comprising a time varying sequence of spatially dependent representations of the respiratory mechanics of the subject are processed for identifying differences between the subject's actual respiratory mechanics and desired mechanics that can improve the health of the subject, or identify particular maladies.

The invention relates to a stereoscopic image non-reference quality evaluation method based on visual perception characteristics. The method includes the steps that firstly, a region in which the human eyes are interested in an image is selected through a visual prominence model algorithm; secondly, a depth map for representing stereoscopic visual information is extracted from the region of interest as an evaluation basis through a left view and a right view; thirdly, characteristic statistical treatment is conduced on the depth value of the region, and the influence of human eye depth sensitive characteristics on depth perception is considered in the process; eventually the video sequence depth quality value is calculated by the combination of characteristic information of time domains. Compared with a traditional method, the stereoscopic image non-reference quality evaluation method has the advantages that result accuracy is greatly improved, high generating efficiency of the depth map is possessed, weight factors for representing that the depth level affects human eye depth sensitivity are added in a stereoscopic feeling quality evaluation model, and then stereoscopic image quality is more accurately evaluated.