Object detection method, object detection apparatus, and program
First Claim
1. An object detection method comprising:
- acquiring an image;
generating a plurality of layer images by enlarging or reducing the image;
detecting a first object from at least one of the plurality of layer images;
estimating a specific object based on the detected first object;
selecting at least one of the plurality of layer images based on the estimated specific object;
detecting a second object larger than the detected first object in the selected layer image;
estimating the specific object based on the detected second object; and
determining the specific object based on the specific object estimated based on the first object and the specific object estimated based the second object.
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Abstract
An object detection method includes an image acquisition step of acquiring an image including a target object, a layer image generation step of generating a plurality of layer images by one or both of enlarging and reducing the image at a plurality of different scales, a first detection step of detecting a region of at least a part of the target object as a first detected region from each of the layer images, a selection step of selecting at least one of the layer images based on the detected first detected region and learning data learned in advance, a second detection step of detecting a region of at least a part of the target object in the selected layer image as a second detected region, and an integration step of integrating a detection result detected in the first detection step and a detection result detected in the second detection step.
19 Citations
14 Claims
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1. An object detection method comprising:
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acquiring an image; generating a plurality of layer images by enlarging or reducing the image; detecting a first object from at least one of the plurality of layer images; estimating a specific object based on the detected first object; selecting at least one of the plurality of layer images based on the estimated specific object; detecting a second object larger than the detected first object in the selected layer image; estimating the specific object based on the detected second object; and determining the specific object based on the specific object estimated based on the first object and the specific object estimated based the second object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. An object detection apparatus comprising:
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a memory; and a processor in communication with the memory, the processor functions as; an acquisition unit configured to acquire an image; a generation unit configured to generate a plurality of layer images by enlarging or reducing the image; a first detection unit configured to detect a first object from at least one of the plurality of layer images; a first estimation unit configured to estimate a specific object based on the detected first object; a layer limitation unit configured to limit at least one of the plurality of layer images on which detection is to be performed based on the estimated specific object; a second detection unit configured to detect a second object larger than the first object in the limited layer image; a second estimation unit configured to estimate the specific object based on the detected second object; and a determination unit configured to determine the specific object based on the specific object estimated by the first estimation unit and the specific object estimated by the second estimation unit.
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Specification