An image processing apparatus comprising: determination means (102, 106, 301) for determining whether to transmit first geometrically converted image data generated by performing a first geometric conversion on captured image data to a reception apparatus, or to transmit the captured image data, without the geometric conversion, to the reception apparatus, wherein the captured image data is captured with the use of an imaging means for wide-angle imaging; conversion means for performing a first geometric conversion to convert the captured image data into a first geometrically converted image for transmission, and a second geometric conversion to convert the captured image data into a second geometrically converted image for detecting a human body and processing for recognizing a human body; processing means for performing predetermined detection processing, including detection of moving object information indicating at least one of a position of a moving object, an area of a region of the moving object, and a circumscribed rectangle surrounding the moving object in the captured image data, on the captured image data; human body detection means for acquiring human body information indicating at least one of a position of a human body, and an area of the human body, and a circumscribed rectangle surrounding the human body, by performing processing for detecting the human body on the second geometrically converted image data; and control means (103, 106, 402) for performing control for performing the first geometric conversion on a result of the predetermined detection processing, including detection of moving object information performed on the captured image data without the first geometric conversion, and detection of human body information performed on the second geometrically converted image data, the control comprising converting the moving object information and the human body information into moving object information and the human body information corresponding to the first geometrically converted image data, in a case where the first geometrically converted image data is to be transmitted to the reception apparatus, and converting the human body information into human body information corresponding to the captured image data without the geometric conversion in a case where the captured image data without the first geometric conversion is to be transmitted to the reception apparatus, wherein the conversion means performs the first geometric conversion and the second geometric conversion in the case of the determination means determines to transmit the first geometrically converted image data, and performs the second geometric conversion in the case of the determination means determines to transmit the captured image data without the first geometric conversion. determination means (102, 106, 301) for determining whether to transmit first geometrically converted image data generated by performing a first geometric conversion on captured image data to a reception apparatus, or to transmit the captured image data, without the geometric conversion, to the reception apparatus, wherein the captured image data is captured with the use of an imaging means for wide-angle imaging; conversion means for performing a first geometric conversion to convert the captured image data into a first geometrically converted image for transmission, and a second geometric conversion to convert the captured image data into a second geometrically converted image for detecting a human body and processing for recognizing a human body; processing means for performing predetermined detection processing, including detection of moving object information indicating at least one of a position of a moving object, an area of a region of the moving object, and a circumscribed rectangle surrounding the moving object in the captured image data, on the captured image data; human body detection means for acquiring human body information indicating at least one of a position of a human body, and an area of the human body, and a circumscribed rectangle surrounding the human body, by performing processing for detecting the human body on the second geometrically converted image data; and control means (103, 106, 402) for performing control for performing the first geometric conversion on a result of the predetermined detection processing, including detection of moving object information performed on the captured image data without the first geometric conversion, and detection of human body information performed on the second geometrically converted image data, the control comprising converting the moving object information and the human body information into moving object information and the human body information corresponding to the first geometrically converted image data, in a case where the first geometrically converted image data is to be transmitted to the reception apparatus, and converting the human body information into human body information corresponding to the captured image data without the geometric conversion in a case where the captured image data without the first geometric conversion is to be transmitted to the reception apparatus, wherein the conversion means performs the first geometric conversion and the second geometric conversion in the case of the determination means determines to transmit the first geometrically converted image data, and performs the second geometric conversion in the case of the determination means determines to transmit the captured image data without the first geometric conversion.