Testing apparatus and method for special object
A detection device and subject technology, applied in three-dimensional object recognition, instrument, character and pattern recognition, etc., can solve problems such as inability to meet, difficult classification problems, and unsatisfactory speed, and achieve high performance and improved speed. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] As shown in Fig. 2, the present invention provides a kind of multi-view face detection method, and it comprises the following steps, the face space is divided into the sub-face space of multiple view angles; Rotate outward to obtain the sub-face space of five perspectives: frontal face, half-left face, full-left face, half-right face, and full-right face. The space is rotated in the plane by ±45°, so that the sub-face space of each viewing angle can get two sub-face spaces rotated in the plane (such as the in-plane rotation of ±30°), so that the face space is divided into 15 perspectives of sub-face space
[0050] The out-of-plane rotation shown in this embodiment is the rotation about the Z-axis, but the rotation about the X-axis may also be used. When rotating with the X axis as the axis, the face in the image is downward, and the appearance changes as in the upward direction. According to the definition of the axes, a rotation about the X axis corresponds to an in-...
Embodiment 2
[0130] As shown in Figures 8a and 8b, the present invention also provides a multi-view face detection device, which includes a face sample input unit for inputting a face image including a sub-face space;
[0131] A breadth-first search tree structure detector, wherein there is a root branch node in the tree structure, the root branch node covers the divided sub-face space of all perspectives and has multiple branches, each branch corresponds to a sub-branch node, The sub-branch nodes cover at least one perspective sub-face space, wherein:
[0132] The sub-branch node of the sub-face space covering more than one viewing angle has multiple branches, each branch corresponds to a sub-branch node of the adjacent lower layer, and each sub-branch node of the adjacent lower layer covers at least one sub-face space of the viewing angle, The sub-branch nodes of the sub-face space covering only one viewing angle are the leaf nodes of the tree structure;
[0133] Each of the above branc...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com