Abstract: An electronic device and method for light distribution correction of uneven texture maps for three-dimensional (3D) objects is disclosed. The electronic device captures an image of an object that is illuminated by a set of lighting patterns. The electronic device determines a brightness distribution of the captured image based on a location of at least one camera of the set of cameras. The electronic device computes distance of each pixel associated with the captured image and the set of cameras. The electronic device generates a light map of the captured image of the object based on the determined brightness distribution and the computed distance. Further, the electronic device updates a brightness intensity of a texture map associated with the captured image, based on the generated light map, and renders the captured image based on the updated brightness intensity of the texture map.

Abstract: An electronic device and method for generation of roughness maps for three-dimensional (3D) objects is disclosed. The electronic device captures a set of images of an object illuminated by a set of lighting patterns of a set of image light sources. The electronic device interleaves the set of polarized OLAT frames on the set of images based on the set of lighting patterns. The electronic device executes a pixel-level inter-frame registration on the set of images, based on the interleaved set of polarized OLAT frames and generates a 3D mesh of the object based on the set of images. Further, the electronic device generates a set of specular maps of the object in a UV texture space, based on the 3D mesh and generates a roughness map associated with the object in the UV texture space, based on the set of specular maps of the object.

Abstract: An electronic apparatus and method for generation of subsurface scattering texture maps for three-dimensional (3D) objects is provided. The electronic apparatus controls a set of light sources to generate a set of lighting patterns. The electronic apparatus controls a set of image capture devices to capture a set of images of an object that is illuminated by the generated set of lighting patterns. The electronic apparatus determines pixel-level offset information based on application of an image registration operation on the set of images. The electronic apparatus generates a set of corrected images based on the pixel-level offset information and the set of images. The electronic apparatus estimates subsurface scattering (SSS) parameters in a form of texture maps corresponding to a 3D mesh of the object. The estimation is performed based on a fitting of a scattering model on the set of corrected images.

Abstract: An electronic device and method for lighting control for multi-view image capture is provided. The electronic device selects, from a plurality of predefined lighting patterns, a set of lighting patterns to capture a set of images of a subject. The electronic device controls a lighting system to illuminate the subject with a first pulse and a second pulse. An illumination intensity increases from a first intensity to a second intensity, associated with the first pulse and the second pulse respectively. The electronic device controls the lighting system to illuminate the subject with flash pulses corresponding to the selected set of lighting patterns, based on illumination of the subject with the first pulse and the second pulse. The electronic device controls a set of multi-view image capture devices to capture the set of images of the subject, based on illumination of the subject with the selected set of flash pulses.

Abstract: An electronic apparatus and method for generation of subsurface scattering texture maps for three-dimensional (3D) objects is provided. The electronic apparatus controls a set of light sources to generate a set of lighting patterns. The electronic apparatus controls a set of image capture devices to capture a set of images of an object that is illuminated by the generated set of lighting patterns. The electronic apparatus determines pixel-level offset information based on application of an image registration operation on the set of images. The electronic apparatus generates a set of corrected images based on the pixel-level offset information and the set of images. The electronic apparatus estimates subsurface scattering (SSS) parameters in a form of texture maps corresponding to a 3D mesh of the object. The estimation is performed based on a fitting of a scattering model on the set of corrected images.

Abstract: A system and method for normal and mesh detail separation for photometric tangent map creation is provided. The system acquires a base three-dimensional (3D) mesh of an object and a photometric surface normal corresponding to the object. The system computes a mesh density map based on the base 3D mesh and a base normal map based on vertex normal information included in the base 3D mesh. The system determines a correction on the photometric surface normal based on the base normal map and the mesh density map. The system generates a corrected photometric surface normal based on an application of the correction.

Abstract: The embodiments of the present disclosure provide methods and apparatuses for conversation interaction, a device, and a storage medium. In the method for conversation interaction, a conversation continuation entry for at least one topic in a first conversation is presented in a conversation window of a first conversation, and a conversation continuation entry for a first topic in at least one topic is presented independently of a conversation message of the corresponding topic. In response to detecting a trigger on the conversation continuation entry for the first topic, a first topic region corresponding to the first topic is presented, the first topic region including a conversation message related to the first topic in the first conversation.

Abstract: An electronic device and method for generation of reflectance maps for relightable 3D models is disclosed. The electronic device acquires multi-view image data that includes a set of images of an object and generates a 3D mesh of the object based on the multi-view image data. The electronic device obtains a set of motion-corrected images based on a minimization of a rigid motion associated with the object between images of the set of images and generates texture maps in a UV space based on the set of motion-corrected images and the 3D mesh. The electronic device obtains specular and diffuse reflectance maps based on a separation of specular and diffuse reflectance components from the texture maps, and obtains a relightable 3D model of the object based on the specular and diffuse reflectance maps.

Abstract: An electronic device and method for 3D human modeling under a specific body-fitting of clothes is disclosed. A set of depth images of a person wearing clothes is acquired and an initial body model is generated based on a first shape-fitting of a human body prior with at least a first depth scan. A posed-body model is obtained based on a pose-fitting of the initial body model with at least one depth scan. In each depth scan, clothed scan points and unclothed scan points are determined. A final body model is determined based on a second shape-fitting of vertices which belong to the posed-body model and correspond to an under-cloth skin portion of the body of the person. The second shape-fitting is based on the clothed scan points and the unclothed scan points. The final body model is textured based on a skin texture map for the body.

Abstract: An electronic device and method for lighting control for multi-view image capture is provided. The electronic device selects, from a plurality of predefined lighting patterns, a set of lighting patterns to capture a set of images of a subject. The electronic device controls a lighting system to illuminate the subject with a first pulse and a second pulse. An illumination intensity increases from a first intensity to a second intensity, associated with the first pulse and the second pulse respectively. The electronic device controls the lighting system to illuminate the subject with flash pulses corresponding to the selected set of lighting patterns, based on illumination of the subject with the first pulse and the second pulse. The electronic device controls a set of multi-view image capture devices to capture the set of images of the subject, based on illumination of the subject with the selected set of flash pulses.

Abstract: An electronic device and method for generation of reflectance maps for relightable 3D models is disclosed. The electronic device acquires multi-view image data that includes a set of images of an object and generates a 3D mesh of the object based on the multi-view image data. The electronic device obtains a set of motion-corrected images based on a minimization of a rigid motion associated with the object between images of the set of images and generates texture maps in a UV space based on the set of motion-corrected images and the 3D mesh. The electronic device obtains specular and diffuse reflectance maps based on a separation of specular and diffuse reflectance components from the texture maps. and obtains a relightable 3D model of the object based on the specular and diffuse reflectance maps.

Abstract: Mechanisms for constructing and querying a database are described. Constructing the database includes accessing the database comprising multi-component data and constructing an augmented succinct trie (AST) as an index of the database. The database includes sorted data blocks. Construction of the AST is based on the multi-component data. The AST includes indications of boundaries of the data components of the multi-component data. Querying the database includes accessing a key comprising multiple data components and augmenting the key data with data component boundary information. The AST is searched using the augmented key and a search result provided as a value corresponding to the key in the database.

Abstract: A system and method for three-dimensional (3D) microgeometry and reflectance modeling is provided. The system receives images comprising a first set of images of a face and a second set of images of the face. The faces in the first set of images and the second set of images are exposed to omni-directional lighting and directional lighting, respectively. The system generates a 3D face mesh based on the received images and executes a set of skin-reflectance modeling operations by using the generated 3D face mesh and the second set of images, to estimate a set of texture maps for the face. Based on the estimated set of texture maps, the system texturizes the generated 3D face mesh. The texturization includes an operation in which texture information, including microgeometry skin details and skin reflectance details, of the estimated set of texture maps is mapped onto the generated 3D face mesh.

Abstract: A system and method for three-dimensional (3D) microgeometry and reflectance modeling is provided. The system receives images comprising a first set of images of a face and a second set of images of the face. The faces in the first set of images and the second set of images are exposed to omni-directional lighting and directional lighting, respectively. The system generates a 3D face mesh based on the received images and executes a set of skin-reflectance modeling operations by using the generated 3D face mesh and the second set of images, to estimate a set of texture maps for the face. Based on the estimated set of texture maps, the system texturizes the generated 3D face mesh. The texturization includes an operation in which texture information, including microgeometry skin details and skin reflectance details, of the estimated set of texture maps is mapped onto the generated 3D face mesh.

Abstract: An electronic device and method for human skin detection based on a human body-prior is provided. A color image of a person is acquired, and a 3D body model of the person is estimated based on the color image. One or more unclothed parts of the 3D body model are identified. The one or more unclothed parts correspond to one or more body parts, of which at least a portion of skin remains uncovered by clothes. From the color image, pixel information corresponding to the one or more unclothed parts is extracted and classification information is determined based on the pixel information. The classification information includes a set of values, each indicating a likelihood of whether a corresponding pixel of the color image is part of an unclothed skin portion of the person. The unclothed skin portion is detected in the color image based on the classification information.

Abstract: An electronic device and method for 3D human modeling under a specific body-fitting of clothes is disclosed. A set of depth images of a person wearing clothes is acquired and an initial body model is generated based on a first shape-fitting of a human body prior with at least a first depth scan. A posed-body model is obtained based on a pose-fitting of the initial body model with at least one depth scan. In each depth scan, clothed scan points and unclothed scan points are determined. A final body model is determined based on a second shape-fitting of vertices which belong to the posed-body model and correspond to an under-cloth skin portion of the body of the person. The second shape-fitting is based on the clothed scan points and the unclothed scan points. The final body model is textured based on a skin texture map for the body.

Abstract: An electronic device and method for human skin detection based on a human body-prior is provided. A color image of a person is acquired, and a 3D body model of the person is estimated based on the color image. One or more unclothed parts of the 3D body model are identified. The one or more unclothed parts correspond to one or more body parts, of which at least a portion of skin remains uncovered by clothes. From the color image, pixel information corresponding to the one or more unclothed parts is extracted and classification information is determined based on the pixel information. The classification information includes a set of values, each indicating a likelihood of whether a corresponding pixel of the color image is part of an unclothed skin portion of the person. The unclothed skin portion is detected in the color image based on the classification information.

Abstract: The present disclosure provides a method for executing a query in a database, the method comprising receiving the query that comprises a query key; searching a data structure of the database to determine whether the query key includes a portion that corresponds to an entry in the database, wherein the data structure comprises a first sequence of values comprising information that indicates whether the database comprises data that corresponds to a portion of a key, and a second sequence of values comprising pointers pointing to data that corresponds to the key; in response to the query key including a portion that corresponds to an entry in the database, determining a location of a value in the first sequence, wherein the value corresponds to the portion of the query key; and determining a pointer in the second sequence of values according to the location, wherein the pointer points to data that corresponds to the query key.

Abstract: The present disclosure provides a method comprising receiving an instruction to partition a trie in a database, wherein the trie comprises a first sequence of values comprising information that indicates labels of keys in the trie, a second sequence of values comprising information that indicates whether the labels in the first sequence have one or more child nodes, a third sequence of values comprising information that indicates whether the labels in the first sequence are first child nodes under a parent node, and a fourth sequence of values comprising information that indicates values that corresponds to the labels in the first sequence; separating a sub-trie from the trie by removing entries corresponding to the sub-trie from the first, the second, the third, and the fourth sequences; and updating an entry in the fourth sequence corresponding to a parent node of the sub-trie using a memory address of the sub-trie.

Abstract: A method for monitoring host computers includes: providing a preset script that, when executed, implements the following steps including: acquiring node information of a target node and host computer information of a target host computer in the target node; calling a host computer template that matches the target host computer, and creating an instance of the target host computer in a monitoring system according to the host computer information and the host computer template; adding the created instance to a node tree corresponding to the node information; determining a to-be-monitored port of the created instance in the node tree based on the host computer information, calling a graph template that matches the port, and creating a port graph corresponding to the port for the created instance; and collecting real-time data of the port and drawing the collected real-time data into the port graph.