Hand detection device and hand detection method
AssigneeFujitsu Limited
InventorKoichiro Niinuma
Life of this patent
Estimating the term…
Abstract
An image processing device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: acquiring an image which includes a first region and a second region of a user; detecting, from a group of candidate areas for the first region and the second region included in the image, the candidate area corresponding to the first region based on biometric characteristics of the first region; determining a connection direction between the first region and the second region based on outer edges of the candidate area corresponding to the first region; and selecting the candidate area corresponding to the second region from the group of candidate areas based on the connection direction.
Claims17
An image processing device comprising:
- a memory;
- and
- a processor, coupled to the memory, configured to:
- acquire an image which includes a first region and a second region of a user, the first region corresponding to a dorsum of a hand of the user and a portion from a second joint to a third joint of a finger of the hand, the second region corresponding to a region from a fingertip to the second joint of the finger of the hand;
- detect, from a plurality of candidate areas for the first region and the second region included in the image, a first candidate area corresponding to the first region based on a predetermined image feature of the first region and based on an image feature corresponding to wrinkles of skin on a first joint and the second joint of the finger extracted from the image, the predetermined image feature including at least a statistic of pixel values of the first region;
- determine parallel line segments included in outer edges of the first candidate area;
- and
- select a second candidate area corresponding to the second region from the plurality of candidate areas based on the parallel line segments.
An image processing method comprising:
- acquiring an image which includes a first region and a second region of a user, the first region corresponding to a dorsum of a hand of the user and a portion from a second joint to a third joint of a finger of the hand, the second region corresponding to a region from a fingertip to the second joint of the finger of the hand;
- detecting, from a plurality of candidate areas for the first region and the second region included in the image, a first candidate area corresponding to the first region based on a predetermined image feature of the first region and based on an image feature corresponding to wrinkles of skin on a first joint and the second joint of the finger extracted from the image, the predetermined image feature including at least a statistic of pixel values of the first region;
- determining, by a computer processor, parallel line segments included in outer edges of the first candidate area;
- and
- selecting a second candidate area corresponding to the second region from the plurality of candidate areas based on the parallel line segments.
A non-transitory computer-readable storage medium storing an image processing program that causes a computer to execute a process comprising:
- acquiring an image which includes a first region and a second region of a user, the first region corresponding to a dorsum of a hand of the user and a portion from a second joint to a third joint of a finger of the hand, the second region corresponding to a region from a fingertip to the second joint of the finger of the hand;
- detecting, from a plurality of candidate areas for the first region and the second region included in the image, a first candidate area corresponding to the first region based on a predetermined image feature of the first region and based on an image feature corresponding to wrinkles of skin on a first joint and the second joint of the finger extracted from the image, the predetermined image feature including at least a statistic of pixel values of the first region;
- determining parallel line segments included in outer edges of the first candidate area;
- and
- selecting a second candidate area corresponding to the second region from the plurality of candidate areas based on the parallel line segments.
Dependencies are inferred from the claim text.