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Image processing apparatus, image processing system, and image processing method

專利號
US10867166B2
公開日期
2020-12-15
申請人
SONY CORPORATION（JP Tokyo）
發(fā)明人
Kazuhiro Shimauchi; Takashi Kohashi; Masakazu Ebihara; Yuji Ono; Hidetoshi Nagano
IPC分類
G06K9/00; G06T7/215; G06T7/292; G06K9/62; G06T7/20
技術(shù)領(lǐng)域
person,detection,candidate,in,image,frame,moving,body,process,point
地域： Tokyo

摘要

Provided are an apparatus and a method for executing a person detection process from an image. A divisional small region setting window is set and an image in the window is determined to be a person based on the number of moving body pixels of each divisional small region, and a first person candidate point is set in the window when the image is determined to be a person. A person determination process is executed based on an image feature quantity in a person determination detection frame, and a second person candidate point is set in the person determination detection frame when it is determined to be a person. A distribution state in a moving body detection frame of the person determination detection frame is analyzed, and an image in the person determination detection frame is determined to be a person based on an analysis result.

說明書

The reduced image generation process in steps S307 and S308 in the flowchart illustrated in FIG. 17 is a process for enabling persons of various sizes included in the image frame to be detected as described above.

For example, as illustrated in FIG. 22, a plurality of reduced images from an images R0 to an image R6 are generated, and the processes of step S301 and subsequent steps are repeated using a plurality of reduced images.

In a case in which it is determined that the process using all the specified reduced images is completed in in step S307 of the flowchart illustrated in FIG. 17, the process ends.

In step S305 executed in accordance with the flowchart illustrated in FIG. 17, a list of “second person candidate points” determined to be a person is generated.

A specific example of the second person candidate point list will be described with reference to FIG. 23.

FIG. 23 illustrates an example of the second person candidate point list.

Five entries, that is, identifiers 0 to 4 are registered in the second person candidate point list illustrated in FIG. 23.

The five pieces of registration data (entries) are registration data corresponding to the “second person candidate point” set for the moving body determined as a person obtained by executing the flow illustrated in FIG. 17.

權(quán)利要求

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