An optical detection device of detecting a distance relative to a target object includes a substrate, an optical sensor and a processor. The optical sensor is disposed on the substrate and adapted to capture an image about the target object. The processor is disposed on the substrate and electrically connected with the optical sensor. The processor is adapted to mark a first region and a second region within the image for acquiring first quantity of the first region and second quantity of the second region, and compare the first quantity with the second quantity for determining whether the distance is varied to a predefined condition.

A system and method for field extraction including determining a key position of a key in an electronic file, isolating candidate key values based on a distance from the key position, selecting a key value from the candidate key values based on an output of a trained neural network, and extracting the key and the key value from the electronic file, regardless of a key-value structure.

An information processing apparatus that generates an image in a virtual space to be presented to a user detects information as to a position of a target object in a real space, places a virtual object corresponding to the target object at a position in the virtual space obtained on the basis of the detected information as to the position of the target object in the real space, acquires user body size data representing the size of a body of the user in the real space, and determines the position in the virtual space at which the virtual object is to be placed, using the detected information as to the position of the target object in the real space, and the user body size data about the user in the real space.

An interaction method between reality and virtuality and an interaction system between reality and virtuality are provided in the embodiments of the present invention. A marker is provided on a controller. A computing apparatus is configured to determine control position information of the controller in a space according to the marker in an initial image captured by an image capturing apparatus; determine object position information of a virtual object image in the space corresponding to the marker according to the control position information; and integrate the initial image and the virtual object image according to the object position information, to generate an integrated image. The integrated image is used to be played on a display. Accordingly, an intuitive operation is provided.

An optical detection device of detecting a distance relative to a target object includes a substrate, an optical sensor and a processor. The optical sensor is disposed on the substrate and adapted to capture an image about the target object. The processor is disposed on the substrate and electrically connected with the optical sensor. The processor is adapted to mark a first region and a second region within the image for acquiring first quantity of the first region and second quantity of the second region, and compare the first quantity with the second quantity for determining whether the distance is varied to a predefined condition.

A system and method for field extraction including determining a key position of a key in an electronic file, isolating candidate key values based on a distance from the key position, selecting a key value from the candidate key values based on an output of a trained neural network, and extracting the key and the key value from the electronic file, regardless of a key-value structure.

An information processing apparatus that generates an image in a virtual space to be presented to a user detects information as to a position of a target object in a real space, places a virtual object corresponding to the target object at a position in the virtual space obtained on the basis of the detected information as to the position of the target object in the real space, acquires user body size data representing the size of a body of the user in the real space, and determines the position in the virtual space at which the virtual object is to be placed, using the detected information as to the position of the target object in the real space, and the user body size data about the user in the real space.

An apparatus and a method for detecting an AVPS marker. In one example, a method of detecting a coded marker comprises receiving an image and preprocessing the image, extracting a feature map of the image through a backbone network, extracting a center point heatmap for a coded marker, a first feature map for a width and height of a bounding box, a second feature map for offsets for adjusting the center point, and a third feature map for corner points of the coded marker from the feature map using a plurality of head networks, generating candidate detection information including the bounding box and the corner points on the basis of the center point heatmap, the first feature map, the second feature map, and the third feature map, and outputting final detection information by performing modified non-maximum suppression on the candidate detection information.

Methods and systems for processing digital files are described. In one embodiment, a digital document processing subsystem monitoring a database location for a file to process, after identifying a file to process, identifying a location of one or more multiple-choice selection areas within the file, and determining whether each of the one or more multiple choice selection areas were marked by hand and storing results of the determination in a database.