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

專利號(hào)
US10867166B2
公開日期
2020-12-15
申請(qǐng)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

It is assumed that the moving body in the window is determined to be a person at a position at which the divisional small region setting window 151 is set at the upper end of fourth moving body detection frame 144.

In this case, in step S205, the “first person candidate point” is set in the window, and the coordinate information or the like is recorded in the person candidate point list.

As illustrated in FIG. 12, the first person candidate point 161 is set, and the coordinate information (x, y) or the like of the first person candidate point 161 is registered in the “the first person candidate point list.”

Further, the first person candidate point 161 is set to the center position of the divisional small region setting window 151, for example, at a position determined to be a person.

(Step S206)

In a case in which the setting of the “first person candidate point” and the list registration process are completed step S205 or in a case in which the moving body in the window is determined not to be a person in step S204, the process proceeds to step S206.

In step S206, it is determined whether or not all the processes for the moving body detection frame in the image frame serving as the processing target are completed.

In a case in which the processes are completed, the process proceeds to step S207.

In a case in which any one of the processes is not completed, the process returns to step S201, and the process for an unprocessed moving body detection frame is executed.

(Steps S207 and S208)

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