摘要:
An apparatus comprises a first interface for receiving a plurality of partially overlapping images of an object from a corresponding plurality of cameras being arranged along a first and a second direction according to a camera pattern. The apparatus comprises an analyzing unit configured for selecting at least one corresponding reference point in an overlap area of a set of images, and for determining displacement information along the first and the second direction of the reference point in each of the other images of the set of images. A misalignment of the plurality of images along the first and the second direction is compensated by the displacement information so as to obtain aligned images. The apparatus comprises a determining unit configured for determining offset information between principal points of the plurality of cameras using at least three aligned images. The apparatus comprises a second interface for providing calibration data based on the displacement information and based on the offset information. The calibration data allows for calibrating the plurality of images so as to comply to the camera pattern
摘要:
The object of the present invention is a method for the composition of high- resolution image performing automated enhancement of image resolution from several partially overlapping low-resolution images captured at different positions and angles of photo cameras Formation of the enhanced resolution image includes the 3 main stages: in the first stage a 3D model of the surface captured in photographs is identified: positions and turning angles of cameras are restored, as well as the 3D surface of the object captured in photographs is calculated; in the second stage a correction of optical distortions of all lower-resolution images is performed, the required amount of correction is determined using the geometric distortion coefficients received in the first phase; in the third stage, the calculation of the intensities of enhanced resolution pixels is carried out - to this end, for each new enhanced resolution point a 3D point located on a 3D mesh of the captured object is found, when projecting the 3D point to all lower-resolution points, the projections of the 3D point are found, a four-square area of the point environment, the angles of which are also projected to all lower-resolution images, is marked around the 3D point, from the lower-resolution points located in the projections of the 3D point environments an equation system is formed, by resolving which the wanted intensity of the enhanced resolution point is found. This paper describes the principles for the enhancement of the monochrome image resolution, but it can also be used for colour images. In the case of colour images the colour of each enhanced resolution pixel is determined by adapting the described method to each original colour (red, green and blue) individually.
摘要:
A method of registering first and second cameras in a multi-camera imager comprising imaging a calibration target having rows and columns of fiducials with both the first and second cameras and using convergence angles of images of the rows and columns in the images to register the cameras.
摘要:
A method of registering first and second cameras in a multi-camera imager comprising generating virtual fiducials at different locations relative to the multi camera imager and using coordinates of the virtual fiducials to determine a fundamental matrix for the cameras.
摘要:
An information processing apparatus includes an acquiring unit configured to acquire first data and second data, a deriving unit configured to derive gradient data describing a gradient of correspondence data on the basis of the correspondence data describing a correspondence between partial data of the first data and partial data of the second data, and a propagating unit configured to propagate the correspondence data on the basis of the gradient data.
摘要:
A method of visual navigation for a robot includes integrating a depth map with localization information to generate a three-dimensional (3D) map. The method also includes motion planning based on the 3D map, the localization information, and/or a user input. The motion planning overrides the user input when a trajectory and/or a velocity, received via the user input, is predicted to cause a collision.
摘要:
A first image capture component may capture a first image of a scene, and a second image capture component may capture a second image of the scene. There may be a particular baseline distance between the first image capture component and the second image capture component, and at least one of the first image capture component or the second image capture component may have a focal length. A disparity may be determined between a portion of the scene as represented in the first image and the portion of the scene as represented in the second image. Possibly based on the disparity, the particular baseline distance, and the focal length, a focus distance may be determined. The first image capture component and the second image capture component may be set to focus to the focus distance.
摘要:
In accordance with some embodiments, connected-component labeling is performed in both the screen dimensions (which may be referred to as the x and y dimensions) and a depth dimension to label objects in a depth image. Then the contour of labeled blobs may be used to identify an object in the depth image. Using contours may be advantageous in some embodiments because it reduces the amount of data that must be handled and the extent of computations, compared to conventional techniques which use bit map based operations.
摘要:
A 3D imaging system is proposed in which an object is successively illuminated in at least three directions and at least three images of the object are captured by one or more energy sensors. A set of images is produced computationally showing the object from multiple viewpoints, and illuminated in the at least three directions simultaneously. This set of images is used stereoscopically to form an initial 3D model of the object. Variations in the brightness of the object provides features useful in the stereoscopy. The initial model is refined using photometric data obtained from images in which the object is illuminated in the at least three directions successively.