# US 2025/0093484 A1 · Information processing apparatus, system, method and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0093484 A1 - Document ID: US20250093484A1 - Status: Published application - Kind: A1 - Application number: 18/626,492 - Filed: 2024-04-04 - Published: 2025-03-20 - Earliest claimed: 2023-09-14 - Assignees: Kabushiki Kaisha Toshiba - Applicants: Kabushiki Kaisha Toshiba - Inventors: Ryota SEKIYA - Web page: https://patentgrep.com/patent/US20250093484A1 ## CPC - G01S 13/04: Systems determining presence of a target (based on relative movement of target G01S13/56) - G01S 13/90: using synthetic aperture techniques {, e.g. synthetic aperture radar [SAR] techniques} - G01S 13/9021: {SAR image post-processing techniques} - G01S 13/9027: {Pattern recognition for feature extraction} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract According to one embodiment, an information processing apparatus includes a processor. The processor is configured to acquire a first observation signal from a radar device with a plurality of antennas configured to transmit a radar signal and to receive a radar echo based on a reflected wave of the radar signal, generate a first radar image by executing a signal process based on a predetermined first condition, and generate a second radar image by executing a signal process based on a second condition. The first and second radar images are used as training data for a learning model to detect an object to which the radar signal is transmitted. ## Claims ### Claim 1 An information processing apparatus comprising a processor configured to: acquire a first observation signal from a radar device with a plurality of antennas configured to transmit a radar signal and to receive a radar echo based on a reflected wave of the radar signal, the first observation signal being based on the radar signal and the radar echo; generate a first radar image by executing a signal process based on a predetermined first condition, with respect to the first observation signal; and generate a second radar image by executing a signal process based on a second condition which is different from the first condition, with respect to the first observation signal, wherein the first and second radar images are used as training data for a learning model to detect an object to which the radar signal is transmitted. ### Claim 2 (depends on 1) The information processing apparatus of claim 1, wherein the first radar image is generated using the first observation signal, and the second radar image is generated using a third observation signal generated by adding a second observation signal which is different from the first observation signal to the first observation signal. ### Claim 3 (depends on 1) The information processing apparatus of claim 1, wherein the first radar image is generated using the first observation signal, and the second radar image is generated using a second observation signal which is a part of the first observation signal. ### Claim 4 (depends on 1) The information processing apparatus of claim 1, wherein the first radar image is generated by executing a synthetic aperture process by which convolution integral of the first observation signal and a predetermined first matched filter is calculated, and the second radar image is generated by a synthetic aperture process by which convolution integral of the first observation signal and a second matched filter which is different from the first matched filter. ### Claim 5 (depends on 4) The information processing apparatus of claim 4, wherein the second matched filter is generated by shifting, reversing, rotating, enlarging, or reducing the first matched filter. ### Claim 6 (depends on 4) The information processing apparatus of claim 4, wherein a distance set with respect to the second matched filter is different from a distance set with respect to the first matched filter. ### Claim 7 (depends on 4) The information processing apparatus of claim 4, wherein resolution of the second matched filter is different from resolution of the first matched filter. ### Claim 8 (depends on 1) The information processing apparatus of claim 1, wherein the second radar image is a radar image with a degraded signal to noise ratio of the first radar image. ### Claim 9 (depends on 1) The information processing apparatus of claim 1, wherein the second radar image is a radar image with a improved signal to noise ratio of the first radar image. ### Claim 10 (depends on 1) The information processing apparatus of claim 1, wherein the first radar image is generated based on a first dynamic range, and the second radar image is generated based on a second dynamic range which is different from the first dynamic range. ### Claim 11 (depends on 1) The information processing apparatus of claim 1, wherein the training data includes the first and second radar images, and label information representing an object included in the first radar image output from the learning model by inputting the first radar image to the learning model, or label information representing the object designated by a user. ### Claim 12 (depends on 1) The information processing apparatus of claim 1, wherein the radar signal is transmitted based on a frequency modulated continuous wave (FMCW) method. ### Claim 13 (depends on 1) A system comprising: an information processing apparatus of claim 1; and the radar device. ### Claim 14 A method executed by an information processing apparatus, comprising: acquiring a first observation signal from a radar device with a plurality of antennas configured to transmit a radar signal and to receive a radar echo based on a reflected wave of the radar signal, the first observation signal being based on the radar signal and the radar echo; generating a first radar image by executing a signal process based on a predetermined first condition, with respect to the first observation signal; and generating a second radar image by executing a signal process based on a second condition which is different from the first condition, with respect to the first observation signal, wherein the first and second radar images are used as training data for a learning model to detect an object to which the radar signal is transmitted. ### Claim 15 A non-transitory computer-readable storage medium having stored thereon a program which is executed by a computer, the program comprising instructions capable of causing the computer to execute functions of: acquiring a first observation signal from a radar device with a plurality of antennas configured to transmit a radar signal and to receive a radar echo based on a reflected wave of the radar signal, the first observation signal being based on the radar signal and the radar echo; generating a first radar image by executing a signal process based on a predetermined first condition, with respect to the first observation signal; and generating a second radar image by executing a signal process based on a second condition which is different from the first condition, with respect to the first observation signal, wherein the first and second radar images are used as training data for a learning model to detect an object to which the radar signal is transmitted.