Image receiving device, image transmission system, and image receiving method

摘要

To improve an image recognition rate by quickly changing a parameter in a proper manner without being affected by a transmission delay of an image encoding stream in an image receiving device that recognizes a decoded image obtained by decoding the received image encoding stream. The image receiving device includes a data receiving unit, a parameter changing unit, a decoding unit, and an image recognition unit. The data receiving unit receives an image encoding stream including image encoding data and the parameter. The parameter changing unit changes the parameter received by the data receiving unit, that is, the parameter specified for encoding performed by a sender, to a value suitable for image recognition performed in the subsequent stage. The decoding unit generates the image decoding data by decoding the received image encoding data according to the changed parameter. The image recognition unit performs image recognition on the image decoding data.

主权项

1. An image receiving device comprising:
a data receiving unit; a parameter changing unit; a decoding unit; and an image recognition unit, the data receiving unit receiving an image encoding stream including image encoding data and a parameter, the image encoding stream comprising an elementary stream, the image encoding data comprising an encoded image, and the parameter comprising an encoding parameter in accordance with which an image is encoded to generate the encoded image, the parameter changing unit being configured to change the parameter in the image encoding stream received by the data receiving unit so as to increase accuracy of image recognition performed by the image recognition unit, the decoding unit generating image decoding data, the image decoding data comprising a decoded image, by decoding the image encoding stream including the image encoding data received by the data receiving unit and the parameter changed by the parameter changing unit, using the parameter changed by the parameter changing unit as a decoding parameter, the image recognition unit performing the image recognition on the image decoding data, and wherein in a process of the image recognition, the image recognition unit calculates an index indicating the accuracy of image recognition, and the parameter changing unit changes the parameter received by the data receiving unit, based on the index indicating the accuracy of image recognition calculated in the process of image recognition.